bbu3900 user guide (v400r006_03)

Airbridge BBU3900 CDMA Baseband Unit

V400R006

User Guide

Issue 03

Date 2008-11-30

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For anyassistance, please contact our local office or company headquarters.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

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Website: http://www.huawei.com

Email: [email protected]

Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but the statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

http://www.huawei.com

mailto:[email protected]

Contents

About This Document.....................................................................................................................1

1 Safety Information.....................................................................................................................1-11.1 Safety Precautions...........................................................................................................................................1-11.2 Electricity Safety.............................................................................................................................................1-31.3 Inflammable Environment...............................................................................................................................1-51.4 Battery.............................................................................................................................................................1-51.5 Radiation.........................................................................................................................................................1-71.6 Working at Heights.........................................................................................................................................1-91.7 Mechanical Safety.........................................................................................................................................1-111.8 Others............................................................................................................................................................1-12

2 Hardware Configuration of the BBU3900..............................................................................2-12.1 Structure of the BBU3900...............................................................................................................................2-2

2.1.1 Hardware Configuration of the BBU3900.............................................................................................2-22.1.2 Functional Structure of the BBU3900....................................................................................................2-52.1.3 Physical Ports of the BBU3900..............................................................................................................2-62.1.4 Technical Specifications of the BBU3900.............................................................................................2-8

2.2 Components of the BBU3900.........................................................................................................................2-92.2.1 CMPT...................................................................................................................................................2-102.2.2 HCPM...................................................................................................................................................2-142.2.3 HECM..................................................................................................................................................2-162.2.4 UPEU...................................................................................................................................................2-192.2.5 FAN......................................................................................................................................................2-202.2.6 UTRP....................................................................................................................................................2-222.2.7 UELP....................................................................................................................................................2-252.2.8 UFLP....................................................................................................................................................2-262.2.9 USCU...................................................................................................................................................2-27

2.3 BBU3900 Cables...........................................................................................................................................2-292.3.1 PGND Cable of the BBU3900.............................................................................................................2-302.3.2 Power Cable of the BBU3900..............................................................................................................2-312.3.3 E1/T1 Cable of the BBU3900..............................................................................................................2-322.3.4 BBU3900 E1/T1 Lightning Protection Conversion Cable...................................................................2-372.3.5 FE Cable of the BBU3900...................................................................................................................2-38

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2.3.6 FE Lightning Protection Conversion Cable of the BBU3900..............................................................2-402.3.7 BBU3900 CPRI Cable.........................................................................................................................2-412.3.8 Alarm Cable of the BBU3900..............................................................................................................2-422.3.9 BBU3900 Monitoring Signal Cable.....................................................................................................2-432.3.10 Clock Cable of the BBU3900.............................................................................................................2-46

3 Auxiliary Devices of the BBU3900..........................................................................................3-13.1 Indoor Installation Rack..................................................................................................................................3-23.2 APM30............................................................................................................................................................3-43.3 Power Supply Devices....................................................................................................................................3-8

3.3.1 Power Supply Module..........................................................................................................................3-103.3.2 Power Distribution Box........................................................................................................................3-10

3.4 SLPU.............................................................................................................................................................3-133.5 EMUA...........................................................................................................................................................3-14

4 Installing the Hardware of the BBU3900 ..............................................................................4-14.1 Information About the Installation of the BBU3900......................................................................................4-3

4.1.1 Installation Modes of the BBU3900.......................................................................................................4-34.1.2 Space Required for the Installation of the BBU3900.............................................................................4-44.1.3 General Requirements for BTS Cable Layout.......................................................................................4-54.1.4 Connection Relations of BBU3900 Cables............................................................................................4-7

4.2 Preparations for Installing the BBU3900........................................................................................................4-74.2.1 Installation Tools for the BBU3900.......................................................................................................4-84.2.2 Unpacking the BBU3900.......................................................................................................................4-8

4.3 Installing the BBU3900...................................................................................................................................4-94.4 Scenario 1: Installing the BBU3900 in the 19-Inch Cabinet...........................................................................4-9

4.4.1 Installing the BBU3900 Body in the 19-Inch Cabinet.........................................................................4-104.4.2 Installing the DCDU in the 19-Inch cabinet.........................................................................................4-104.4.3 Installing the SLPU in the 19-Inch Cabinet (Optional)........................................................................4-114.4.4 Installing BBU3900 Cables in the 19-Inch Cabinet.............................................................................4-12

4.5 Scenario 2: Installing the BBU3900 in the AMP30......................................................................................4-214.5.1 Installing the BBU3900 Body in the AMP30......................................................................................4-224.5.2 Installing the APM30 in the SLPU......................................................................................................4-234.5.3 Installing the BBU3900 Cables in the APM30....................................................................................4-24

4.6 Scenario 3: Installing the BBU3900 on the Indoor Installation Rack...........................................................4-344.6.1 Installing the BBU3900 Body on the Indoor Installation Rack...........................................................4-354.6.2 Installing the DCDU on the Indoor Installation Rack..........................................................................4-354.6.3 Installing the SLPU on the Indoor Installation Rack (Optional)..........................................................4-364.6.4 Installing the BBU3900 Cables on the Indoor Installation Rack.........................................................4-36

4.7 Scenario 4: Installing the BBU3900 in the 19-Inch Rack.............................................................................4-384.7.1 Installing the BBU3900 Body in the 19-Inch Rack.............................................................................4-384.7.2 Installing the DCDU in the 19-Inch Rack............................................................................................4-394.7.3 Installing the SLPU in the 19-Inch Rack (Optional)............................................................................4-404.7.4 Installing BBU3900 Cables in the 19-Inch Rack.................................................................................4-40

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4.8 Scenario 5: Installing the BBU3900 in a BTS3606AE Cabinet....................................................................4-424.8.1 Installing the BBU3900 in a BTS3606AE Cabinet..............................................................................4-424.8.2 Installing the BBU3900 Cables in the BTS3606AE Cabinet...............................................................4-43

4.9 Checking the Hardware Installation of the BBU3900...................................................................................4-504.9.1 BBU3900 Installation Checklist...........................................................................................................4-514.9.2 Powering On the BBU3900..................................................................................................................4-51

5 Configuring the BBU3900.........................................................................................................5-15.1 Configuring the CMPT....................................................................................................................................5-25.2 Configuring the UTRP....................................................................................................................................5-25.3 Configuring the HCPM...................................................................................................................................5-35.4 Configuring the HECM...................................................................................................................................5-45.5 Configuring the UPEU....................................................................................................................................5-55.6 Configuring the USCU....................................................................................................................................5-6

6 Maintaining the Hardware of the BBU3900..........................................................................6-16.1 Items of Routine BBU3900 Maintenance.......................................................................................................6-26.2 Power On and Off the BBU3900....................................................................................................................6-2

6.2.1 Powering On the BBU3900....................................................................................................................6-26.2.2 Powering Off the BBU3900...................................................................................................................6-3

6.3 Replacing the BBU3900 Body........................................................................................................................6-36.4 Replacing the BBU3900 Parts.........................................................................................................................6-4

6.4.1 Replacing the CMPT..............................................................................................................................6-56.4.2 Replacing the HCPM/HECM.................................................................................................................6-66.4.3 Replacing the UPEU..............................................................................................................................6-86.4.4 Replacing the UTRP...............................................................................................................................6-96.4.5 Replacing the UELP/UFLP..................................................................................................................6-116.4.6 Replacing the USCU............................................................................................................................6-126.4.7 Replacing the FAN...............................................................................................................................6-136.4.8 Replacing the Optical Module..............................................................................................................6-14

6.5 Replacing BBU3900 Cables..........................................................................................................................6-156.5.1 Replacing Power Cable of the BBU3900.............................................................................................6-166.5.2 Replacing the E1/T1 Cable of the BBU3900.......................................................................................6-176.5.3 Replacing the BBU3900 E1/T1 Lightning Protection Conversion Cable............................................6-186.5.4 Replacing the FE Cable of the BBU3900............................................................................................6-196.5.5 Replacing the FE Lightning Protection Conversion Cable of the BBU3900.......................................6-216.5.6 Replacing the BBU3900 CPRI Cable..................................................................................................6-226.5.7 Replacing the Alarm Cable of the BBU3900.......................................................................................6-23

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Figures

Figure 1-1 Wearing an ESD wrist strap...............................................................................................................1-5Figure 1-2 Lifting a weight................................................................................................................................1-10Figure 1-3 Slant angle........................................................................................................................................1-11Figure 1-4 One meter higher than the eave........................................................................................................1-11Figure 2-1 BBU3900............................................................................................................................................2-2Figure 2-2 Board configuration of the BBU3900................................................................................................2-2Figure 2-3 Functional structure of the BBU3900 (with the UELP/UFLP)..........................................................2-5Figure 2-4 Functional structure of the BBU3900 (with the UTRP).....................................................................2-6Figure 2-5 Dimensions of the BBU3900..............................................................................................................2-8Figure 2-6 CMPT panel......................................................................................................................................2-10Figure 2-7 DIP switches on the CMPT..............................................................................................................2-13Figure 2-8 HCPM panel.....................................................................................................................................2-14Figure 2-9 HECM panel.....................................................................................................................................2-17Figure 2-10 UPEU panel....................................................................................................................................2-19Figure 2-11 FAN panel.......................................................................................................................................2-21Figure 2-12 UTRP panel with E1/T1 ports........................................................................................................2-22Figure 2-13 DIP Switches on the UTRP............................................................................................................2-24Figure 2-14 UELP panel.....................................................................................................................................2-25Figure 2-15 DIP switches on the UELP.............................................................................................................2-26Figure 2-16 UFLP panel.....................................................................................................................................2-27Figure 2-17 USCU panel....................................................................................................................................2-28Figure 2-18 PGND cable....................................................................................................................................2-31Figure 2-19 Structure of the power cable...........................................................................................................2-31Figure 2-20 E1/T1 cable.....................................................................................................................................2-33Figure 2-21 Structure of the 75-ohm coaxial cable............................................................................................2-34Figure 2-22 Structure of the 100-ohm twisted pair cable...................................................................................2-35Figure 2-23 Structure of the 120-ohm twisted pair cable...................................................................................2-36Figure 2-24 E1/T1 lightning protection conversion cable..................................................................................2-37Figure 2-25 FE Ethernet cable............................................................................................................................2-39Figure 2-26 FE lightning protection conversion cable.......................................................................................2-40Figure 2-27 CPRI optical fiber...........................................................................................................................2-41Figure 2-28 Structure of the SFP cable..............................................................................................................2-41Figure 2-29 Alarm cable of the BBU3900.........................................................................................................2-42

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Figure 2-30 EMUA signal cable........................................................................................................................2-44Figure 2-31 APM30 (–48 V) signal cable..........................................................................................................2-45Figure 2-32 GPS clock cable..............................................................................................................................2-46Figure 3-1 Indoor installation rack and the installation mode..............................................................................3-2Figure 3-2 Indoor centralized installation............................................................................................................ 3-3Figure 3-3 Indoor distributed installation.............................................................................................................3-4Figure 3-4 APM30 (power supply cabinet/transmission cabinet)........................................................................3-5Figure 3-5 APM30 (battery cabinet)....................................................................................................................3-5Figure 3-6 APM30 working with distributed BTS (internal storage batteries)....................................................3-8Figure 3-7 APM30 working with distributed BTS (external storage batteries)...................................................3-8Figure 3-8 AC power supply module.................................................................................................................3-10Figure 3-9 DC PDB............................................................................................................................................3-11Figure 3-10 Exterior of the DCDU.....................................................................................................................3-12Figure 3-11 SLPU with a UELP and a UFLP....................................................................................................3-13Figure 4-1 Installation modes of the BBU3900................................................................................................... 4-4Figure 4-2 Space for different installation modes of the BBU3900 (unit: mm).................................................. 4-4Figure 4-3 Cable connections of the BBU........................................................................................................... 4-7Figure 4-4 Installation in the 19-inch cabinet.....................................................................................................4-10Figure 4-5 Installation position of the DCDU in the cabinet.............................................................................4-11Figure 4-6 Installation position of the SLPU in the cabinet...............................................................................4-12Figure 4-7 Connections of the BBU3900 cables................................................................................................4-13Figure 4-8 Example of the BBU3900 cable layout in the 19-inch cabinet........................................................4-13Figure 4-9 Connecting the power cable to the PWR port..................................................................................4-15Figure 4-10 Stripping sheath of the E1/T1 cable ..............................................................................................4-16Figure 4-11 Sealing treatment............................................................................................................................4-16Figure 4-12 Handling the E1/T1 shielding layer................................................................................................4-17Figure 4-13 Installing optical fibers...................................................................................................................4-19Figure 4-14 Installing the fiber winding tube.....................................................................................................4-20Figure 4-15 Installing the optical module on the RRU/ODU............................................................................4-20Figure 4-16 Connecting the alarm cable to the EXT_ALM0 port....................................................................4-21Figure 4-17 Installation position of the BBU3900 in the APM30 AC cabinet..................................................4-22Figure 4-18 Installation position of the BBU3900 in the APM30 (–48 V) DC cabinet.....................................4-23Figure 4-19 Connections of the BBU3900 cables..............................................................................................4-24Figure 4-20 Example of the BBU3900 cable layout in the APM30 cabinet......................................................4-25Figure 4-21 Connecting the power cable to the PWR port................................................................................4-26Figure 4-22 Grounding the E1/T1 cable.............................................................................................................4-28Figure 4-23 Installing optical fibers...................................................................................................................4-31Figure 4-24 Installing the fiber winding tube.....................................................................................................4-31Figure 4-25 Installing the optical module on the RRU/ODU............................................................................4-32Figure 4-26 Connecting the alarm cable to the EXT_ALM0 port....................................................................4-33Figure 4-27 Connecting the signal cable to the MON0 port..............................................................................4-33Figure 4-28 Connecting the environment signal cable to the panel of the APMI..............................................4-34

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Figure 4-29 Installing the BBU3900 body on the indoor installation rack........................................................4-35Figure 4-30 Installing the DCDU on the indoor installation rack......................................................................4-36Figure 4-31 Connections of the BBU3900 cables..............................................................................................4-37Figure 4-32 BBU3900 cable layout on the indoor installation rack...................................................................4-38Figure 4-33 Installing the BBU3900 body (in the 19-inch rack).......................................................................4-39Figure 4-34 Connections of the BBU3900 cables..............................................................................................4-40Figure 4-35 BBU3900 cable layout in the rack..................................................................................................4-41Figure 4-36 Installing the BBU3900..................................................................................................................4-43Figure 4-37 Power cable of the BBU3900.........................................................................................................4-44Figure 4-38 Connection of the power cable.......................................................................................................4-45Figure 4-39 SFP cable........................................................................................................................................4-46Figure 4-40 Numbering of the HCPM/HECM...................................................................................................4-46Figure 4-41 Installing the SFP cables (1)...........................................................................................................4-47Figure 4-42 GPS clock cable connected to the CMPT panel.............................................................................4-48Figure 4-43 GPS clock cable interconnected with the external GPS feeder......................................................4-48Figure 4-44 Removing the cover plate from the GPS clock cable outlet at the bottom of the BBC..................4-49Figure 4-45 Installing the GPS clock cables......................................................................................................4-49Figure 4-46 Waterproofing N-type connectors..................................................................................................4-50Figure 4-47 Routing of the BBU3900 cables.....................................................................................................4-50

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Tables

Table 2-1 Boards in the BBU3900.......................................................................................................................2-3Table 2-2 Input power supply of the BBU3900...................................................................................................2-9Table 2-3 CMPT ports........................................................................................................................................2-11Table 2-4 Indicators on the panel.......................................................................................................................2-11Table 2-5 Settings of the DIP switches on the CMPT........................................................................................2-13Table 2-6 Ports on the HCPM panel...................................................................................................................2-14Table 2-7 Indicators on the panel.......................................................................................................................2-15Table 2-8 Ports on the HECM panel..................................................................................................................2-17Table 2-9 Indicators on the panel.......................................................................................................................2-17Table 2-10 Ports on the UPEU panel..................................................................................................................2-19Table 2-11 Indicators on the panel.....................................................................................................................2-20Table 2-12 Indicators on the FAN panel............................................................................................................2-21Table 2-13 Ports on the UTRP panel..................................................................................................................2-22Table 2-14 Indicators on the panel.....................................................................................................................2-23Table 2-15 Settings of the DIP switches on the UTRP......................................................................................2-24Table 2-16 Ports on the UELP panel..................................................................................................................2-25Table 2-17 Settings of the DIP switches on the UELP.......................................................................................2-26Table 2-18 Ports on the UFLP panel..................................................................................................................2-27Table 2-19 Ports on the USCU panel.................................................................................................................2-28Table 2-20 Indicators on the panel.....................................................................................................................2-29Table 2-21 Installation position of the PGND cable..........................................................................................2-31Table 2-22 Cores and pins of the –48 V power cable........................................................................................2-32Table 2-23 Cores and pins of the +24 V power cable........................................................................................2-32Table 2-24 Connection of the BBU3900 power cable.......................................................................................2-32Table 2-25 Connection of the E1/T1 cable.........................................................................................................2-33Table 2-26 Mapping between the 75-ohm coaxial cable and the DB26 connector............................................2-34Table 2-27 Mapping between the 100-ohm twisted pair cable and the DB26 connector...................................2-35Table 2-28 Mapping between the 120-ohm twisted pair cable and the DB26 connector...................................2-36Table 2-29 Cores and pins of the E1/T1 lightning conversion cable.................................................................2-38Table 2-30 Installation position of the E1/T1 lightning protection conversion cable........................................2-38Table 2-31 Cores and pins of the FE cable.........................................................................................................2-39Table 2-32 Connection of the FE cable..............................................................................................................2-39Table 2-33 Cores and pins of the FE cable.........................................................................................................2-40

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Table 2-34 Connection of the FE lightning protection conversion cable...........................................................2-41Table 2-35 Installation position of the CPRI cable of the BBU3900.................................................................2-42Table 2-36 Cores and pins of the alarm cable....................................................................................................2-42Table 2-37 Connection of the alarm cable..........................................................................................................2-43Table 2-38 Cores and pins of the EMUA signal cable.......................................................................................2-44Table 2-39 Installation position of the EMUA signal cable...............................................................................2-44Table 2-40 Cores and pins of the APM30 (–48 V) signal cable.........................................................................2-45Table 2-41 Installation position of the EMUA signal cable...............................................................................2-45Table 2-42 Installation position of the clock cable.............................................................................................2-46Table 3-1 Engineering specifications of the indoor installation rack...................................................................3-2Table 3-2 Engineering specifications for the APM30..........................................................................................3-6Table 3-3 Power supply solutions for the DBS3900............................................................................................3-9Table 3-4 How to use the AC PDB....................................................................................................................3-11Table 3-5 Cable connections between the power distribution box and the BBU3900 (DBS3900)...................3-12Table 4-1 General requirements for bend radii of cables.....................................................................................4-5Table 4-2 Tools and instruments..........................................................................................................................4-8Table 4-3 Installation position of the CPRI cable of the BBU3900...................................................................4-18Table 4-4 Installation position of the CPRI cable of the BBU3900...................................................................4-30Table 4-5 Cores and pins of the APM30 (–48 V) signal cable...........................................................................4-34Table 4-6 Materials and tools.............................................................................................................................4-44Table 4-7 Materials and Tools............................................................................................................................4-45Table 4-8 Materials and Tools............................................................................................................................4-48Table 4-9 BBU3900 installation checklist..........................................................................................................4-51Table 5-1 Information about the CMPT...............................................................................................................5-2Table 5-2 Information about the UTRP................................................................................................................5-3Table 5-3 Information about the HCPM...............................................................................................................5-4Table 5-4 Information about the HECM..............................................................................................................5-5Table 5-5 Information about the UPEU...............................................................................................................5-6Table 5-6 Information abou the USCU................................................................................................................5-6Table 6-1 Equipment maintenance items.............................................................................................................6-2

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About This Document

PurposeThis document describes the product specifications of the BBU3900 and the procedure forinstalling, commissioning, configuring, and troubleshooting the BBU3900.

Product VersionThe following table lists the product version related to this document.

Product Name Product Version

BBU3900 V400R006

Intended AudienceThis document is intended for:

l Site maintainers

l Field engineers

l BTS installers

Change RecordsFor the change history, refer to Change History of the BBU3900 User Guide.

Organization1 Safety Information

2 Hardware Configuration of the BBU3900

This describes the BBU3900 equipment and cables of the BBU3900. The information can beused as reference for hardware installation and maintenance.

3 Auxiliary Devices of the BBU3900

The auxiliary devices of the BBU3900 are the indoor installation rack, APM30, power supplydevice, monitoring and lightning protection device.

4 Installing the Hardware of the BBU3900

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This describes the safety precautions, installation background information, installationprocedure, and installation checklist.

5 Configuring the BBU3900

The BBU3900 contains mandatory boards (CMPT, HCPM/HECM, and UPEU), optional boards(UTRP and USCU), and other modules. Data configuration should be performed on mandatoryboards and optional boards. For other modules, data configuration is not required.

6 Maintaining the Hardware of the BBU3900

After the site starts operation, you must perform routine maintenance for the BBU to ensure theoperation condition.

Conventions

1. Symbol Conventions

The following symbols may be found in this document. They are defined as follows

Symbol Description

DANGERIndicates a hazard with a high level of risk that, if not avoided,will result in death or serious injury.

WARNINGIndicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.

CAUTIONIndicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or save yourtime.

NOTE Provides additional information to emphasize or supplementimportant points of the main text.

2. General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files,directories,folders,and users are in boldface. Forexample,log in as user root .

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

3. Command Conventions

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Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...} Alternative items are grouped in braces and separated by verticalbars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by verticalbars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Alternative items are grouped in braces and separated by verticalbars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


Boldface Buttons,menus,parameters,tabs,window,and dialog titles are inboldface. For example,click OK.

> Multi-level menus are in boldface and separated by the ">" signs.For example,choose File > Create > Folder .

5. Keyboard Operation


Key Press the key.For example,press Enter and press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+Ameans the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

Action Description

Click Select and release the primary mouse button without moving thepointer.

Double-click Press the primary mouse button twice continuously and quicklywithout moving the pointer.

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Action Description

Drag Press and hold the primary mouse button and move the pointerto a certain position.

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1 Safety Information

1.1 Safety PrecautionsThis section describes certain safety precautions and helps to choose the measurement deviceand testing device. Read and follow these safety precautions before installing, operating, andmaintaining Huawei devices.

Following All Safety Precautions

Before any operation, read the instructions and precautions in this document carefully tominimize the possibility of accidents.

The Danger, Caution, and Note items in the package of documents do not cover all the safetyprecautions that must be followed. They only provide the generic safety precautions foroperations.

Symbols

DANGERThis symbol indicates that casualty or serious accident may occur if you ignore the safetyinstruction.

CAUTIONThis symbol indicates that serious or major injury may occur if you ignore the safety instruction.

NOTE

This symbol indicates that the operation may be easier if you pay attention to the safety instruction.

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Complying with the Local Safety Regulations

When operating the device, comply with the local safety regulations. The safety precautionsprovided in the documents are supplementary. You must comply with the local safetyregulations.

General Installation Requirements

The personnel in charge of installation and maintenance must be trained and master the correctoperating methods and safety precautions before beginning work.

The rules for installing and maintaining the device are as follows:

l Only the trained and qualified personnel can install, operate and maintain the device.

l Only the qualified specialists are allowed to remove the safety facilities, and repair thedevice.

l Any replacement of the device or part of the device (including the software) or any changemade to the device must be performed by qualified or authorized personnel of Huawei.

l Any fault or error that might cause safety problems must be reported immediately to thepersonnel in charge.

Grounding Requirements

The following requirements are applicable to the device to be grounded:

l Ground the device before installation and remove the ground cable after uninstallation.

l Do not operate the device in the absence of a ground conductor. Do not damage the groundconductor.

l The unit (or system) must be permanently connected to the protection ground beforeoperation. Check the electrical connection of the device before operation and ensure thatthe device is reliably grounded.

Safety of Personnel

Ensure the following:

l When lightning strikes, do not operate the device and cables.

l When lightning strikes, unplug the AC power connector. Do not use the fixed terminal ortouch the terminal or antenna connector.

NOTE

The previous two requirements are suitable for the wireless fixed terminal.

l To prevent electric shock, do not connect safety extra-low voltage (SELV) circuits totelecommunication network voltage (TNV) circuits.

l To prevent laser radiation from injuring your eyes, never look into the optical fiber outletwith unaided eyes.

l To prevent electric shock and burns, wear the electrostatic discharge (ESD) clothing, glovesand wrist strap, and remove conductors such as jewelry and watch before operation.

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Device Safetyl Before operation, the device must be secured on the floor or other fixed objects, such as

the walls and the mounting racks.l Do not block ventilation openings while the system is running.

l When installing the panel, tighten the screw with the tool.

1.2 Electricity Safety

High Voltage

DANGERl The high voltage power supply provides power for running the system. Direct contact with

the high voltage power supply or contact through damp objects may result in fatal danger.l Non-standard and improper high voltage operations may result in fire and electric shock.

l The personnel who install the AC facility must be qualified to perform operations on highvoltage and AC power supply facilities.

l When installing the AC power supply facility, follow the local safety regulations.

l When operating the AC power supply facility, follow the local safety regulations.

l When operating the high voltage and AC power supply facilities, use the specific toolsinstead of common tools.

l When the operation is performed in a damp environment, ensure that water is kept off thedevice. If the cabinet is damp or wet, shut down the power supply immediately.

ThunderstormThe following requirements are suitable only for the wireless base station or the device with anantenna or GPS antenna.

DANGERIn a thunderstorm, do not perform operations on high voltage and AC power supply facilities oron a steel tower and mast.

High Electrical Leakage

CAUTIONGround the device before powering on the device. Otherwise, the personnel and device are indanger.



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If the "high electrical leakage" flag is stuck to the power terminal of the device, you must groundthe device before powering it on.

Power Cable

CAUTIONDo not install and remove the power cable with a live line. Transient contact between the coreof the power cable and the conductor may generate electric arc or spark, which may cause fireor eye injury.

l Before installing or removing the power cable, turn off the power switch.

l Before connecting the power cable, ensure that the power cable and label comply with therequirements of the actual installation.

Fuse

CAUTIONTo ensure that the system runs safely, when a fuse blows, replace it with a fuse of the same typeand specifications.

Electrostatic Discharge

CAUTIONThe static electricity generated by the human body may damage the electrostatic sensitivecomponents on the circuit board, such as the large-scale integrated circuit (LIC).

In the following situations, the human body generates a static electromagnetic field:

l Movement of body parts

l Clothes friction

l Friction between shoes and the ground

l Holding plastic in hand

The static electromagnetic field will remain within the human body for a long time.

Before contacting the device, plug boards, circuit boards, and application specific integratedcircuits (ASICs), wear a grounded ESD wrist strap. It can prevent the sensitive components frombeing damaged by the static electricity in the human body.

Figure 1-1shows how to wear an ESD wrist strap.


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Figure 1-1 Wearing an ESD wrist strap

1.3 Inflammable Environment

DANGERDo not place the device in the environment that has inflammable and explosive air or fog. Donot perform any operation in this environment.

Any operation of the electrical device in the inflammable environment causes danger.

1.4 Battery

Storage Battery

DANGERBefore handling the storage battery, read the safety precautions for the handling and connectionof the storage battery.

Incorrect operation of storage batteries may cause danger. During operation, ensure thefollowing:

l Prevent any short-circuit.

l Prevent the electrolyte from overflowing and leakage.

Electrolyte overflow may damage the device. It will corrode the metal parts and the circuitboards, and ultimately damage the device and cause short-circuit of the circuit boards.



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General Operations

Before installing and maintaining the storage battery, ensure the following:

l Use special insulation tools.

l Use eye protection devices and operate with care.

l Wear rubber gloves and an apron in case of an electrolyte overflow.

l Always keep the battery upright when moving. Do not place the battery upside down or tiltit.

Short-Circuit

DANGERShort-circuit of the battery may cause injury. Although the voltage of a battery is low, hightransient current generated by short-circuit will release a surge of power.

Keep metal objects away from the battery to prevent short circuit. If they have to be used,disconnect the battery in use before performing any other operation.

Harmful Gas

CAUTIONl Do not use unsealed lead-acid storage batteries, because the gas emitted from it may result

in fire or device corrosion.

l Lay the storage battery horizontally and fix it properly.

The lead-acid storage battery in use will emit flammable gas. Therefore, store it in a place withgood ventilation and take precautions against fire.

High Temperature

CAUTIONHigh temperature may result in distortion, damage, and electrolyte overflow of the battery.

When the temperature of the battery exceeds 60oC, check whether there is acid overflow. If acidoverflow occurs, handle the acid immediately.


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Acid

CAUTIONIf the acid overflows, it should be absorbed and neutralized immediately.

When handling a leaky battery, protect against the possible damage caused by the acid. Use thefollowing materials to absorb and neutralize acid spills:

l Sodium bicarbonate (baking soda): NaHCO3

l Sodium carbonate (soda): Na2CO3

Antacids must be used according to the instructions provided by the battery manufacturer.

Lithium Battery

CAUTIONThere is danger of explosion if the battery is incorrectly replaced.

l Replace the lithium battery with the same or equivalent type recommended by themanufacturer.

l Dispose of the used battery according to the instructions provided by the manufacturer.

l Do not dispose of the lithium battery in fire.

1.5 Radiation

Electromagnetic Field Exposure

CAUTIONHigh power radio-frequency signals are harmful to human body.

Before installing or maintaining an antenna on a steel tower or mast with a large number oftransmitter antennas, the operator should coordinate with all parties to ensure that the transmitterantennas are shut down.

The base transceiver station (BTS) has RF radiation (radiation hazard). Suggestions for theinstallation and operation of BTSs are given in the following section. Operators are also requiredto comply with the related local regulations on erecting BTSs.

l The antenna should be located in an area that is inaccessible to the public where the RFradiation exceeds the stipulated value.



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l If the areas where RF radiation exceeds the stipulated value are accessible to workers,ensure that workers know where these areas are. They can shut down the transmitters beforeentering these areas. Such areas may not exist; but if they exist, the areas must be within arange of less than 10 m around the antennas.

l Each forbidden zone should be indicated by a physical barrier and striking sign to warn thepublic or workers.

Laser

CAUTIONWhen handling optical fibers, do not stand close to, or look into the optical fiber outlet withunaided eyes.

Laser transceivers or transmitters are used in the optical transmission system and associated testtools. Because the laser that is transmitted through the optical fiber produces a small beam oflight, it has a very high power density and is invisible to human eyes. If a beam of light entersthe eye, the retina may be damaged.

Normally, staring into the end of an unterminated optical fiber or broken optical fiber with theunaided eyes from a distance of more than 150 mm [5.91 in.] will not cause eye injury. Eyesmay, however, be damaged if an optical tool such as a microscope, magnifying glass or eyeloupe is used to stare into the bare optical fiber end.

Read the following guidelines to prevent laser radiation:

l Only the trained and authorized personnel can perform the operation.

l Wear a pair of eye-protective glasses when you are handling lasers or optical fibers.

l Ensure that the optical source is switched off before disconnecting optical fiber connectors.

l Never look into the end of an exposed optical fiber or an open connector if you cannotensure that the optical source is switched off.

l To ensure that the optical source is switched off, use an optical power meter.

l Before opening the front door of an optical transmission system, ensure that you are notexposed to laser radiation.

l Never use an optical tool such as a microscope, a magnifying glass, or an eye loupe to lookinto the optical fiber connector or end.

Read the following instructions before handling optical fibers:

l Only the trained personnel can cut and splice optical fibers.

l Before cutting or splicing an optical fiber, ensure that the optical fiber is disconnected fromthe optical source. After disconnecting the optical fiber, use protecting caps to protect allthe optical connectors.


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1.6 Working at Heights

CAUTIONWhen working at heights, ensure that the objects do not fall.

When working at heights, ensure that the following requirements must be met:

l The personnel who work at heights must be trained.

l The operating machines and tools should be carried and handled safely to prevent themfrom falling.

l Safety measures, such as wearing a helmet and a safety belt, should be taken.

l In cold regions, warm clothes should be worn before working at heights.

l Ensure that the lifting appliances are well prepared for working at heights.

Lifting Weights

CAUTIONDo not access the areas under the arm of the crane and the goods in suspension when liftingweights.

l Ensure that the operators have been trained and qualified.

l Check the weight lifting tools and ensure that they are intact.

l Lift the weight only when the weight lifting tools are firmly mounted onto the weight-bearing object or the wall.

l Use a concise instruction to prevent incorrect operation.

l The angle between the two cables should be less than or equal to 90o in the lifting of weights(See Figure 1-2).



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Figure 1-2 Lifting a weight

Safety Guide on Ladder UseChecking the Ladder

l Check the ladder before using it. Check the maximum weight that the ladder can support.

l Never overload the ladder.

Placing the Ladder

l The slant angle is preferred to be 75o. The slant can be measured with the angle square orwith arms, as shown in Figure 1-3. When using a ladder, place the wider end of the ladderon the ground and take protective measures on the base of the ladder against slippage. Placethe ladder on a stable ground.

When climbing the ladder, ensure the following:

l The gravity of the body does not shift from the edge of the ladder.

l Keep balance on the ladder before performing any operation.

l Do not climb higher than the fourth highest step of the ladder.

If you tend to climb to the roof, the length of the ladder should be at least one meter higher thanthe eave, as shown in Figure 1-4.


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Figure 1-3 Slant angle

Figure 1-4 One meter higher than the eave

1.7 Mechanical Safety

Drilling

CAUTIONDo not drill on the cabinet without permission. Inappropriate drilling on the cabinet may damagethe electromagnetic shielding and internal cables. Metal shavings from the drilling may resultin a short-circuit of the circuit board if they get into the cabinet.

l Before drilling a hole on the cabinet, remove the cables from the cabinet.

l During the drilling, wear blinkers to protect your eyes.



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l During the drilling, wear the protective gloves.

l Prevent the metal shavings from getting into the cabinet. After drilling, clean the metalshavings in time.

Handling Sharp Objects

CAUTIONWhen carrying the device by hand, wear the protective gloves to prevent injury by sharp objects.

Handling Fansl When replacing a component, place the component, screw, and tool at a safe place to prevent

them from falling into the running fan.l When replacing the ambient equipment around the fan, do not place the finger or board

into the running fan until the fan is switched off and stops running.

Moving Heavy ObjectsWear the protective gloves when moving heavy objects.

CAUTIONl Be careful when moving heavy objects.

l When moving the chassis outwards, be aware about the unfixed or heavy objects on thechassis to prevent injury.

l Two persons should be available to move a chassis; one person must not move a heavychassis. When moving a chassis, keep your back straight and move stably to prevent asprain.

l When moving or lifting a chassis, hold the handle or bottom of the chassis. Do not hold thehandle of the installed modules in the chassis, such as the power module, fan module, orboard.

1.8 Others

Inserting and Removing a Board

CAUTIONWhen inserting a board, wear the ESD wrist strap or gloves. Insert the board gently to preventany bent pins on the backplane.


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l Insert the board along the guide rail.

l Avoid contact of one board with another to prevent short-circuit or damage.

l Do not remove the active board before powering off.

l When holding a board in hand, do not touch the board circuit, components, connectors, orconnection slots.

Bundling Signal Cables

CAUTIONBundle the signal cables separately from the strong current cables or high voltage cables.

Cabling RequirementsAt a very low temperature, movement of the cable may damage the plastic skin of the cable. Toensure the construction safety, comply with the following requirements:

l When installing cables, ensure that the environment temperature is above 0oC.

l If cables are stored in the place below 0oC, move the cables into a place at a roomtemperature and store the cables for more than 24 hours before installation.

l Move the cables with care, especially at a low temperature. Do not drop the cables directlyfrom the vehicle.



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2 Hardware Configuration of the BBU3900

About This Chapter

This describes the BBU3900 equipment and cables of the BBU3900. The information can beused as reference for hardware installation and maintenance.

2.1 Structure of the BBU3900The BBU3900 can be configured with the CMPT, UTRP, HECM or HCPM, FAN, UPEU,USCU, and UELP or UFLP. The BBU3900 implements resource management, operation andmaintenance, environment monitoring, and service processing.

2.2 Components of the BBU3900This describes the panels and technical specifications of the boards or modules in the BBU3900.

2.3 BBU3900 CablesThe cables of the BBU3900 are the PGND cable, –48 V DC power cable, E1/T1 cable/conversioncable, FE cable/conversion cable, CPRI cable, alarm cable, and clock cable.

Airbridge BBU3900 CDMA Baseband UnitUser Guide 2 Hardware Configuration of the BBU3900


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2.1 Structure of the BBU3900The BBU3900 can be configured with the CMPT, UTRP, HECM or HCPM, FAN, UPEU,USCU, and UELP or UFLP. The BBU3900 implements resource management, operation andmaintenance, environment monitoring, and service processing.

2.1.1 Hardware Configuration of the BBU3900The BBU3900 can be configured with the CMPT, HECM or HCPM, FAN, UPEU, USCU,UTRP, and UELP or UFLP.2.1.2 Functional Structure of the BBU3900The BBU3900 implements system resource management, operation and maintenance,environment monitoring, and service processing.2.1.3 Physical Ports of the BBU3900The BBU3900 provides physical ports, including power ports, transmission ports, alarm ports,revered ports, and ports between the BBU3900 and other equipment.2.1.4 Technical Specifications of the BBU3900This describes the technical specifications of the BBU3900.

2.1.1 Hardware Configuration of the BBU3900The BBU3900 can be configured with the CMPT, HECM or HCPM, FAN, UPEU, USCU,UTRP, and UELP or UFLP.

Appearance of the BBU3900Figure 2-1 shows the BBU3900.

Figure 2-1 BBU3900

Board Configuration of the BBU3900Figure 2-2 shows the board configuration of the BBU3900. Table 2-1 lists the boards in theBBU3900.

Figure 2-2 Board configuration of the BBU3900

2 Hardware Configuration of the BBU3900Airbridge BBU3900 CDMA Baseband Unit

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Table 2-1 Boards in the BBU3900

Board Full Name Function

CMPT CDMA MainProcessing&TransmissionUnit

l It processes and transmits databetween the BTS and theBSC, controls and managesthe entire BTS, and providesclock signals for the BTSsystem.

l It supports E1, T1, and FElinks and supports IPtransmission.

HCPM HERT channel processingmodule

It processes the CDMA2000 1Xservice data on forward andreverse channels.

HECM HERT Enhance ChannelProcessing Module

It processes the CDMA2000 1x-EV-DO service data on forwardand reverse channels.

UTRP Universal ExtensionTransmission ProcessingUnit

It provides connection betweenthe BBU3900 and the BSC, andsupports E1/T1 and IPtransmission.

UELP Universal E1/T1 LightingProtection Unit

It provides lightning protectionfor E1/T1 signals.

UFLP Universal FE/GE LightingProtection Unit

It provides lightning protectionfor FE signals.

FAN FAN Unit It provides heat dissipation forthe BBU3900.

UPEU Universal Power andEnvironment Interface Unit

It converts –48 V or +24 V DCpower into +12 V DC power andprovides environmentmonitoring signal ports.

USCU Universal Satellite Card andClock Unit

It provides the input port forexternal signals (includingsatellite clock signals) andprovides synchronization clocksignals for the BBU3900 and theRF modules connected to theBBU3900.

Configuration Principles of the BBU3900l CMPT configuration

– A maximum of two CMPTs working in 1+1 backup mode can be configured.



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– Each CMPT provides four E1/T1 ports and two FE ports. You can configure the CMPTsbased on capacity requirements and service types.

l HCPM configuration– A maximum of six HCPMs can be configured.

– An HCPM reserves three SFP ports and supports removable optical modules.

– An HCPM is configured with only one CSM6700 chip. The chip processes 285 forwardchannels and 256 reverse channels.

l HECM configuration– A maximum of six HECMs can be configured.

– An HECM reserves three SFP ports and supports removable optical modules.

– An HECM is configured with only one CSM6800 chip, which supports 192 subscribers.

l UTRP configuration– A maximum of two UTRPs working in load sharing mode or 1+1 backup mode can be

configured.– Each UTRP provides eight E1/T1 ports.

l FAN configurationA maximum of one FAN can be configured.

l UPEU configurationA maximum of two UPEUs working in 1+1 backup mode can be configured.

l USCU configurationA maximum of two USCUs can be configured. The USCU supports GPS or GPS/GLONASS satellite card and RGPS signals.

l UELP configurationA maximum of two UELPs can be configured. A UELP provides lightning protection forfour E1/T1 links.

l UFLP configurationA maximum of two UFLPs can be configured. A UFLP provides lightning protection forFE signals and supports two Ethernet connections.

NOTE

l With hybrid configuration of HCPMs and HECMs, the BBU3900 supports CDMA2000 1X and 1xEV-DO services.

l The BBU3900 supports hybrid configuration of UELPs and UFLPs.

l The UELP/UFLP or the UTRP cannot be simultaneously configured in the BBU3900.

l When the BBU3900 is configured with the UTRP, the SLPU can be used to provide lightningprotection.

l The SLPU is an external universal lightning protection unit. It can house the UELP/UFLP. It isused for the lightning protection of the E1/T1/FE cables. The SLPU supports mixed configurationof the UELP and the UFLP. A maximum of four lightning protection boards can be configured.

l The BBU3900 can be configured with the CMPT and UTRP at the same time.

l If a new site requires more than four E1/T1 links, Huawei recommends that you use the E1/T1resources on the UTRP directly.

l If an expanded site requires more than four E1/T1 links, Huawei recommends that you use the E1/T1 resources provided by the extended transmission board, apart from the four E1/T1 links on themain control transmission board.


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2.1.2 Functional Structure of the BBU3900The BBU3900 implements system resource management, operation and maintenance,environment monitoring, and service processing.

The BBU3900 can be configured with the UELP/UFLP or the UTRP, as shown in Figure 2-3and Figure 2-4.

Figure 2-3 Functional structure of the BBU3900 (with the UELP/UFLP)

HCPM: HERT channel processingmodule

HECM: HERT enhance channelprocessing module

CMPT: main processing andtransmission unit

UPEU: universal power andenvironment interface unit

FAN: fan box USCU: universal satellite card andclock unit

UELP: universal E1/T1 lightingprotection unit

UFLP: universal E1/T1 lightingprotection unit



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Figure 2-4 Functional structure of the BBU3900 (with the UTRP)

UTRP: universal extension transmission processing unit

NOTE

l The UELP/UFLP or the UTRP cannot be simultaneously configured in the BBU3900.

l When the UTRP is configured, the independent SLPU is used to provide lightning protection for theexternal signal cables of the BBU3900.

The BBU3900 performs the following functions:

l Providing external ports

– Providing the Abis interface and processing Abis interface protocols

– Interfacing with the RF subsystem and processing the Um physical layer and commonchannel MAC layer protocols

– Interfacing with the transmission system through the E1/T1/FE ports on thetransmission board for connection with the BSC equipment, and providing connectionwith the RF module through SFP ports on the channel processing board

l Modulating and demodulating baseband data and CDMA channel signals

l Providing system synchronization clock signals

l Implementing resource management, operating and maintenance, and environmentmonitoring

2.1.3 Physical Ports of the BBU3900The BBU3900 provides physical ports, including power ports, transmission ports, alarm ports,revered ports, and ports between the BBU3900 and other equipment.


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Main Physical Ports

Board PortsQuantity

ConnectorType Function

CMPT E1/T1 port 1 DB26 Tranmission port thatconnects to the BSC.Each port provides fourE1/T1 links.

FE electrical port 1 RJ45 Transmission port thatconnects to the BSC.Each port provides oneFE link.l FE electric port,

supporting electriccable

l SFP interface,supporting SFPelectric cable/opticalcable (optical modulerequired)

SFP port 1 SFP

USB connector 1 USB connector Reserved

TEST 1 USB connector Clock test port

ETH port 1 RJ45 Commissioning port,which can be used forlocal maintenance

GPS port 1 SMA Input port for GPSsignals

HCPM/HCEM

SFP 3 SFP Compliable with theCPRI/GIGA protocol,connected to the RF unit

UPEU PWR 1 3W3 Used for the DC powerinput

MON0 1 RJ45 Providing dry contactconnections to twoexternal alarm devicesMON1 1 RJ45

EXT-ALM0 1 RJ45 Providing dry contactconnections to eightexternal alarm devicesEXT-ALM1 1 RJ45



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Optional Physical Ports

Board PortsQuantity

ConnectorType Function

UELP INSIDE 1 DB25 Four E1/T1 signalinterfaces, connected tothe internal equipment

OUTSIDE 1 DB26 Four E1/T1 signalinterfaces, connected tothe external equipment

UFLP FE0 and FE1ports (INSIDE)

2 RJ45 Connected to the CMPT

FE0 and FE1ports(OUTSIDE)

2 RJ45 Connected to externaldevices

USCU RGPS port 3 8-pin socket Connected to the RGPSsignal cable

BITS port 1 SMA Connected to the BITSclock

Test clock port 1 SMA Output port for test clocksignals

Satellite antennaport

1 SMA Input port for RF signalsof the satellite card

UTRP E1/T1 port 2 DB26 Supporting eight E1/T1links

2.1.4 Technical Specifications of the BBU3900This describes the technical specifications of the BBU3900.

Dimensions

The dimensions (height x width x depth) of the BBU3900 are 86 mm [3.39 in.] x 442 mm [17.40in.] x 310 mm [12.20 in.], as shown in Figure 2-5.

Figure 2-5 Dimensions of the BBU3900


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Weightl Empty cabinet (including the FAN and UPEU): ≤ 8 kg [17.64 lb]

l Fully-configured cabinet: ≤ 11 kg [24.26 lb]

Input Power Supply

Table 2-2 Input power supply of the BBU3900

Rated Voltage Range of Input Voltage

+24 V DC +19 V DC to +29 V DC

-48 V DC -38.4 V DC to -57 V DC

NOTE

The UPEU is of two types, namely the UPEA and the UPEB. They support –48 V DC and +24 V DC powerinput respectively

Power ConsumptionPower consumption of a fully-configured BBU3900: ≤ 250 W

Operation Environmentl Ambient temperature

-10℃ to +55℃l Relative humidity of the operating environment

5%RH to 95%RH

2.2 Components of the BBU3900This describes the panels and technical specifications of the boards or modules in the BBU3900.

2.2.1 CMPTThe CMPT is the main processing and transmission unit. The CMPT processes and transmitsthe data between the BTS and the BSC, controls and manages the BTS, and provides clocksignals for the BTS.

2.2.2 HCPMThe HCPM is a CDMA2000 1X channel processing board. It processes the CDMA2000 1Xservice data on forward and reverse channels. By default, the HCPM is configured with oneCSM6700 chip.

2.2.3 HECMThe HECM is a CDMA2000 1xEV-DO channel processing board. It processes the CDMA20001xEV-DO service data on forward and reverse channels. By default, the HECM is configuredwith one CSM6800 chip.

2.2.4 UPEU



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The UPEU supplies power to the BBU3900. Therefore, it is mandatory. The UPEU converts+24 V DC or –48 V DC power into +12 V DC power.

2.2.5 FANThe fan implements the heat dissipation function of the BBU3900.

2.2.6 UTRPThe UTRP is a universal extension transmission processing unit. The UTRP supports E1/T1transmission ports.

2.2.7 UELPA UELP provides lightning protection for four E1/T1 links.

2.2.8 UFLPA UFLP provides lightning protection for FE signals. It supports two Ethernet connections.

2.2.9 USCUThe USCU is compatible with six types of satellite cards. It provides absolute time informationand 1PPS reference clock source for the CMPT. In addition, the USCU supports RGPS and BITSports.

2.2.1 CMPTThe CMPT is the main processing and transmission unit. The CMPT processes and transmitsthe data between the BTS and the BSC, controls and manages the BTS, and provides clocksignals for the BTS.

2.2.1.1 CMPT PanelThis describes the exterior and the ports and indicators of the CMPT panel.

2.2.1.2 DIP Switches on the CMPTThis describes the positions and settings of the DIP switches on the CMPT.

2.2.1.3 Technical Specifications of the CMPTThis describes the technical specifications of the CMPT.

CMPT PanelThis describes the exterior and the ports and indicators of the CMPT panel.

ExteriorFigure 2-6 shows the CMPT panel.

Figure 2-6 CMPT panel

(1) ETH port (2) FE0 port (3) FE1 port (4) USB port

(5) TEST port (6) E1/T1 port (7) GPS port


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PortsTable 2-3 lists the ports on the CMPT panel.

Table 2-3 CMPT ports

Port Description

ETH port Commissioning port

TEST port Clock test port

USB port Reserved port

E1/T1 port Used to transmit data between the BTS andthe BSC

FE0 port Used to transmit data between the BTS andthe BSCElectric port, supporting electric cable

FE1 port Used to transmit data between the BTS andthe BSCSFP port, supporting SFP electric/opticalcableNOTE

When the optical cable is used, you must install theremovable optical module.

GPS port Used to connect the GPS antenna

IndicatorsTable 2-4 lists the indicators on the CMPT panel.

Table 2-4 Indicators on the panel

Indicator

Color Meaning Description NormalState

RUN Green Operationindicator

l ON: There is power input, but theboard is faulty.

l OFF: There is no power input, or theboard is faulty.

l Blinking at 4 Hz: The board is in theloading state.

l Blinking at 0.5 Hz: The boardfunctions normally.

l Blinking at 0.25 Hz: The board isbeing tested.

l Other: The board is faulty.

Blinking at0.5Hz



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Indicator


ALM Red Alarmindicator

l ON: The board must be replaced.

l Blinking at 4 Hz: A critical alarm isgenerated.

l Blinking at 0.5 Hz: A major alarm isgenerated.

l Blinking at 0.25 Hz: A minor alarm isgenerated.

l Off: No alarm is generated.

Off

ACT Green Active/standbyindicator

l ON: The active board is used.

l OFF: The standby board is used.

-

TX Green Portindicator

Optical portl ON: The optical transmission is

normal and the connection is normal.l OFF: The optical transmission is

faulty or the connection is disrupted.Electrical portl ON: There is signal output and the

connection is normal.l OFF: There is no signal output or the

connection is disrupted.

On

RX Green Portindicator

Optical portl ON: The optical transmission is

normal and the connection is normal.l OFF: The optical transmission is

faulty or the connection is disrupted.Electrical portl ON: There is signal input and the

connection is normal.l OFF: There is no signal input or the


On

ACT(Ethernetport)

Yellow Ethernetportindicator

l Blinking: The data is exchanged.

l OFF: No data is exchanged.

Blinking orOFF

LINK(Ethernetport)

Green Ethernetportindicator

l ON: The FE physical link functionsproperly.

l OFF: The FE physical link is faulty.

On


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DIP Switches on the CMPTThis describes the positions and settings of the DIP switches on the CMPT.

Figure 2-7 shows the DIP switches on the CMPT.

Figure 2-7 DIP switches on the CMPT

Table 2-5 lists the settings of the DIP switches on the CMPT.

Table 2-5 Settings of the DIP switches on the CMPT

Number

Function Description

SW1 Impedancematching of theE1/T1 port

The settings of SW1 are as follows:l When the 100-ohm T1 twisted pair cable is used, bits 1 and 2

of SW1 are set to ON, and bits 3 and 4 are set to OFF.l For the coaxial cable (120-ohm E1), bits 1 and 2 of SW1 are

set to OFF, and bits 3 and 4 are set to ON.l When the 75-ohm E1 coaxial cable is used, all bits of SW1 are

set to ON.l Other location: reserved.

SW2 Settings forgrounding ofunbalancedcables

The four bits of SW2 are used to control the grounding status offour unbalanced E1/T1 cables. The settings of SW2 are asfollows:l For the 75-ohm E1 coaxial cable grounded externally, all bits

of SW2 are set to ON.l For the 120-ohm E1 coaxial cable or 100-ohm T1 twisted pair

cable grounded internally, all bits of SW2 are set to OFF.

Technical Specifications of the CMPTThis describes the technical specifications of the CMPT.

The technical specifications of the CMPT are as follows:



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l Dimensions (length x width x depth): 280 mm [11.02 in.] x 144.45 mm [5.69 in.] x 20.32mm [0.80 in.]

l Input voltage: +12V

l Power consumption: ≤ 25 W

2.2.2 HCPMThe HCPM is a CDMA2000 1X channel processing board. It processes the CDMA2000 1Xservice data on forward and reverse channels. By default, the HCPM is configured with oneCSM6700 chip.

2.2.2.1 HCPM PanelThis describes the exterior, ports, and indicators of the HCPM panel.

2.2.2.2 Technical Specifications of the HCPMThis describes the technical specifications of the HCPM.

HCPM PanelThis describes the exterior, ports, and indicators of the HCPM panel.

ExteriorFigure 2-8 shows the HCPM panel.

Figure 2-8 HCPM panel

(1) MDR26 port (2) SFP port

PortsTable 2-6 lists the ports on the HCPM panel.

Table 2-6 Ports on the HCPM panel

Port Description

SFP port It is connected to the RF module.l It can be connected to the optical module,

and then to optical fibers.l It can also be directly connected to an SFP

cable.

MDR26 port The GIGA port is reserved.


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Issue 03 (2008-11-30)

IndicatorsTable 2-7 lists the indicators on the HCPM panel.


Indicator


RUN Green Runningindicator

l Blinking at 4 Hz: The board is beinginitialized or the software is being loaded.

l Blinking at 0.5 Hz: The board functionsproperly.


Blinking at0.5 Hz






l OFF: No alarm is generated.

OFF

ACT Green Operationindicator

l On: The board functions properly.

l Blinking at 4 Hz: An alarm of ATM busis generated.

l Blinking at 0.5 Hz: The main controlsignaling link is disconnected.

l Blinking at 0.25 Hz: The CSM chip isfaulty.

ON


Optical portl ON: The optical transmission is normal

and the connection is normal.l OFF: The optical transmission is faulty or

the connection is disrupted.Electrical portl ON: There is signal output and the



ON



2-15

Indicator





the connection is disrupted.Electrical portl ON: There is signal input and the



ON

Technical Specifications of the HCPM

This describes the technical specifications of the HCPM.

The technical specifications of the HCPM are as follows:

l Dimensions (length x width x depth): 280 mm [11.02 in.] x 144.45 mm [5.69?in.] x 20.32mm [0.80 in.]



l Channel processing capacity: 285 forward channels and 256 reverse channels

2.2.3 HECMThe HECM is a CDMA2000 1xEV-DO channel processing board. It processes the CDMA20001xEV-DO service data on forward and reverse channels. By default, the HECM is configuredwith one CSM6800 chip.

2.2.3.1 HECM PanelThis describes the exterior, ports, and indicators of the HECM panel.

2.2.3.2 Technical Specifications of the HECMThis describes the technical specifications of the HECM.

HECM Panel

This describes the exterior, ports, and indicators of the HECM panel.

Exterior

Figure 2-9 shows the HECM panel.


User Guide


Issue 03 (2008-11-30)

Figure 2-9 HECM panel

(1) MDR26 port (2) SFP port

PortsTable 2-8 lists the ports on the HECM panel.

Table 2-8 Ports on the HECM panel

Port Description

SFP port It is connected to the RF module.l It can be connected to the optical module,

and then to optical fibers.l It can also be directly connected to an SFP

cable.

MDR26 port The GIGA port is reserved.

IndicatorsTable 2-9 lists the indicators on the HECM panel.


Indicator


RUN Green Runningindicator

l Blinking at 4 Hz: The board is beinginitialized or the software is being loaded.

l Blinking at 0.5 Hz: The board functionsproperly.


Blinking at0.5 Hz







OFF



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Indicator


ACT Green Operationindicator

l On: The board functions properly.

l Blinking at 4 Hz: An alarm of ATM busis generated.

l Blinking at 0.5 Hz: The main controlsignaling link is disconnected.

l Blinking at 0.25 Hz: The CSM chip isfaulty.

ON




the connection is disrupted.Electrical portl ON: There is signal output and the



ON




the connection is disrupted.Electrical portl ON: There is signal input and the



ON

Technical Specifications of the HECMThis describes the technical specifications of the HECM.

The technical specifications of the HECM are as follows:




l Channel processing capability: supporting 192 subscribers


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Issue 03 (2008-11-30)

2.2.4 UPEUThe UPEU supplies power to the BBU3900. Therefore, it is mandatory. The UPEU converts+24 V DC or –48 V DC power into +12 V DC power.

2.2.4.1 UPEU PanelThis describes the exterior, ports, and indicators of the UPEU panel.

2.2.4.2 Technical Specifications of the UPEUThis describes the technical specifications of the UPEU.

UPEU PanelThis describes the exterior, ports, and indicators of the UPEU panel.

ExteriorThe UPEU is of two types, UPEA and UPEB. They support –48 V DC and +24 V DC powerinput respectively.l The UPEA converts –48 V DC power into +12 V DC power.

l The UPEB converts +24 V DC power into +12 V DC power.

l The exterior of the UPEA is similar to that of the UPEB. The only difference is the silkscreenunder the PWR port. It indicates the input voltage.

Figure 2-10 shows the UPEU panel.

Figure 2-10 UPEU panel

(1) EXT_ALM1 port (2) EXT_ALM0 port (3) MON1 port

(4) MON0 port (5) PWR port

PortsTable 2-10 lists the ports on the UPEU panel.

Table 2-10 Ports on the UPEU panel

Port Description

MON0 port Input and output of RS485 signals

MON1 port Input and output of RS485 signals



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Port Description

EXT_ALM0 port Input of dry contact signals

EXT_ALM1 port Input of dry contact signals

PWR port External power input

Indicators

Table 2-11 lists the indicators on the UPEU panel.


Indicator

Color Meaning Description Normal State


l On: The board functionsproperly.

l OFF: There is no powerinput or the board isfaulty.

ON

Technical Specifications of the UPEU

This describes the technical specifications of the UPEU.

The technical specifications of the UPEU are as follows:

l Dimensions (length x width x depth): 292.39 mm [11.51 in.] x 85 mm [3.35 in.] x 40.14mm [1.58 in.]

l Input current: ≤ 18 A

l Input voltage:– +24 V DC: +21.6 V DC to +29 V DC

– –48 V DC: –38.4 V DC to -57 V DC

l Output voltage: 12 V

l Rated power: 300 W

2.2.5 FANThe fan implements the heat dissipation function of the BBU3900.

2.2.5.1 FAN PanelThis describes the appearance and the indicators of the FAN panel.

2.2.5.2 Technical Specifications of the FANThis describes the technical specifications of the FAN.


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Issue 03 (2008-11-30)

FAN Panel

This describes the appearance and the indicators of the FAN panel.

Appearance

Figure 2-11 shows the FAN panel.

Figure 2-11 FAN panel

Indicators

Table 2-12 lists the indicators on the FAN panel.

Table 2-12 Indicators on the FAN panel

Indicator

Color Description

STATE Green or Red l Green and blinking at 4 Hz: The board is not registered andno alarm is generated.

l ON in red: An alarm is generated.

l Green and blinking at 0.5 Hz: The board functions properly.

Technical Specifications of the FAN

This describes the technical specifications of the FAN.

The technical specifications of the FAN are as follows:

l Dimensions (length x width x depth): 25.4mm [11.51 in.] x 280mm [3.35 in.] x 80mm [1.58in.]

l Input voltage: +12 V




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2.2.6 UTRPThe UTRP is a universal extension transmission processing unit. The UTRP supports E1/T1transmission ports.

2.2.6.1 UTRP PanelThis describes the exterior, ports, and indicators of the UTRP panel.

2.2.6.2 DIP Switches on the UTRPThis describes the positions and settings of the DIP switches on the UTRP.

2.2.6.3 Technical Specifications of the UTRPThis describes the technical specifications of the UTRP.

UTRP Panel

This describes the exterior, ports, and indicators of the UTRP panel.

Exterior

The UTRP uses a design of motherboard and subboards. Through different subboards, the UTRPsupports different physical network access modes of BTSs. Currently, the UTRP supports onlythe IP over E1/T1 transmission. Each UTRP provides eight E1/T1 ports.

Figure 2-12 UTRP panel with E1/T1 ports

(1) E1/T1 (0–3) ports (2) E1/T1 (4–7) ports

Ports

Table 2-13 lists the ports on the UTRP panel.

Table 2-13 Ports on the UTRP panel

Port Description

E1/T1 port Used to transmit data between the BTS andthe BSC

Indicators

Table 2-14 lists the indicators on the UTRP panel.


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Issue 03 (2008-11-30)


Indicator




l OFF: There is no power input, or theboard is faulty.

l Blinking at 4 Hz: The board is in theloading state.




Blinking at0.5Hz






l Off: No alarm is generated.

Off




-

DIP Switches on the UTRPThis describes the positions and settings of the DIP switches on the UTRP.

Removing subboard,Figure 2-13 shows the DIP switch of UTRP on the motherboard.



2-23

Figure 2-13 DIP Switches on the UTRP

(1) E1/T1 (0–3) ports (2) E1/T1 (4–7) ports

Table 2-15 lists the settings of the DIP switches on the UTRP.

Table 2-15 Settings of the DIP switches on the UTRP

Number


SW3 Specifying theimpedancemode of thetransmissionline

The settings of SW3 are as follows:l When the 100-ohm T1 twisted pair cable is used, bits 1 and

2 of SW3 are set to OFF, and bits 3 and 4 are set to ON.l For the coaxial cable (120-ohm E1), bits 1 and 2 of SW3 are

set to ON, and bits 3 and 4 are set to OFF.l When the 75-ohm E1 coaxial cable is used, all bits of SW3

are set to ON.l Other location: reserved.

SW1/SW2

Specifying thegroundingstatus of thesignal cable

The eight bits of SW1 and SW2 are used to control thegrounding status of eight E1/T1 signal cables. The settings ofSW1 and SW2 are as follows:l In any situation, the eight bits are set to OFF by default.

l When error bits exist in the eight E1 links, set the eight bitsto ON to delete the error bits in the links.

Technical Specifications of the UTRP

This describes the technical specifications of the UTRP.

The technical specifications of the UTRP are as follows:





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Issue 03 (2008-11-30)

2.2.7 UELPA UELP provides lightning protection for four E1/T1 links.

2.2.7.1 UELP PanelThis describes the appearance and the ports of the UELP panel.

2.2.7.2 DIP Switches on the UELPThis describes positions and settings of the DIP switches on the UELP.

2.2.7.3 Technical Specifications of the UELPThis describes the technical specifications of the UELP.

UELP Panel

This describes the appearance and the ports of the UELP panel.

Exterior

Figure 2-14 shows the UELP panel.

Figure 2-14 UELP panel

(1) INSIDE (2) OUTSIDE

Ports

Table 2-16 lists the ports on the UELP panel.

Table 2-16 Ports on the UELP panel

Port Description

INSIDE port DB25 port, supporting four E1/T1 signalinputs

OUTSIDE port DB26 port, supporting four E1/T1 signaloutputs

DIP Switches on the UELP

This describes positions and settings of the DIP switches on the UELP.

Figure 2-15 shows the DIP switches on the UELP.



2-25

Figure 2-15 DIP switches on the UELP

Table 2-17 lists the settings of the DIP switches on the UELP.

Table 2-17 Settings of the DIP switches on the UELP

DIPSwitch


S1 Used to determinethe groundingstatus of E1/T1signal cables inunbalanced mode

l When the RX end of a coaxial cable (75-ohm E1 cable)sheath is grounded, all the bits of S1 are set to ON.

l When the RX end of a coaxial cable (75-ohm E1 cable)sheath is not grounded, all the bits of S1 are set to OFF.

l When use the Twisted pair cable, all the bits of S1 areset to OFF.

Technical Specifications of the UELP

This describes the technical specifications of the UELP.

The technical specifications of the UELP are as follows:

l Dimensions (length x width x depth): 230.5mm [11.02 in.] x 144.4mm [5.69?in.] x 20.32mm [0.80 in.]

l Lightning specifications: 3 kA (differential mode) or 5 kA (common mode)

2.2.8 UFLPA UFLP provides lightning protection for FE signals. It supports two Ethernet connections.

2.2.8.1 UFLP PanelThis describes the appearance and the ports of the UFLP panel.

2.2.8.2 Technical Specifications of the UFLPThis describes the technical specifications of the UFLP.


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Issue 03 (2008-11-30)

UFLP PanelThis describes the appearance and the ports of the UFLP panel.

ExteriorFigure 2-16 shows the UFLP panel.

Figure 2-16 UFLP panel

(1) INSIDE: FE0 port (2) INSIDE: FE1 port (3) OUTSIDE: FE0 port (4) OUTSIDE: FE1 port

PortsTable 2-18 lists the ports on the UFLP panel.

Table 2-18 Ports on the UFLP panel

Port Description

INSIDE: FEO and FE1 ports FE ports, which are used to connect theCMPT of the BBU3900

OUTSIDE: FEO and FE1 ports FE ports, which are used to connect externaldevices

NOTE

For cable connection, INSIDE: FE0 port corresponds to OUTSIDE: FE0 port and INSIDE: FE1 portcorresponds to OUTSIDE: FE1 port.

Technical Specifications of the UFLPThis describes the technical specifications of the UFLP.

The technical specifications of the UFLP are as follows:l Dimensions (length x width x depth): 230.5mm [11.02 in.] x 144.4mm [5.69?in.] x 20.32

mm [0.80 in.]l Lightning specifications: 1kA (differential mode) or 2kA (common mode)

2.2.9 USCUThe USCU is compatible with six types of satellite cards. It provides absolute time informationand 1PPS reference clock source for the CMPT. In addition, the USCU supports RGPS and BITSports.



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2.2.9.1 USCU PanelThis describes the exterior, ports, and indicators of the USCU panel.

2.2.9.2 Technical Specifications of the USCUThis describes the technical specifications of the USCU.

USCU PanelThis describes the exterior, ports, and indicators of the USCU panel.

ExteriorFigure 2-17 shows the USCU panel.

Figure 2-17 USCU panel

(1) GPS port (2) RGPS port (3) BITS port (4) TEST port

PortsTable 2-19 lists the ports on the USCU panel.

Table 2-19 Ports on the USCU panel

Port Description

GPS port GPS signal port

RGPS port RGPS signal port

BITS port BITS clock signal port

TEST port Test clock port

IndicatorsTable 2-20 lists the indicators on the USCU panel.


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Issue 03 (2008-11-30)


Indicator

Color Description

Description Normal State



l OFF: There is no power input, orthe board is faulty.

l Blinking at 4 Hz: The board is inthe loading state.




Blinking at 0.5Hz



l Blinking at 4 Hz: A critical alarmis generated.

l Blinking at 0.5 Hz: A major alarmis generated.

l Blinking at 0.25 Hz: A minoralarm is generated.


OFF




-

Technical Specifications of the USCU

This describes the technical specifications of the USCU.

The technical specifications of the USCU are as follows:




2.3 BBU3900 CablesThe cables of the BBU3900 are the PGND cable, –48 V DC power cable, E1/T1 cable/conversioncable, FE cable/conversion cable, CPRI cable, alarm cable, and clock cable.

2.3.1 PGND Cable of the BBU3900



2-29

The PGND cable ensures the grounding of the BBU3900. The PGND cable is required whenthe BBU3900 is installed in a 19-inch rack. It is not required when the BBU3900 is installed ina 19-inch cabinet/APM30.

2.3.2 Power Cable of the BBU3900The power cables of the BBU3900 are –48 V power cable and +24 V power cable. The selectionof power cables depends on the input power.

2.3.3 E1/T1 Cable of the BBU3900The E1/T1 cable connects the BBU3900 and the BSC. It is used to transmit baseband signals.

2.3.4 BBU3900 E1/T1 Lightning Protection Conversion CableThe E1/T1 lightning conversion cable connects the CMPT/UTRP and the E1/T1 lightningprotection board. It is an optional cable.

2.3.5 FE Cable of the BBU3900The FE cable connects the BBU3900 and the router in the equipment room so that the BBU3900can communicate with the BSC.

2.3.6 FE Lightning Protection Conversion Cable of the BBU3900The FE lightning protection conversion cable is used to connect the CMPT and the UFLP. It isoptional.

2.3.7 BBU3900 CPRI CableThe CPRI cable carries CPRI signals between the BBU3900 and the RRU/ODU. There are twotypes of CPRI cables, namely, optical fiber and SFP cable. The SFP cable is used only when theBBU and the RRU/ODU are both installed indoors. In other scenarios, an optical fiber is used.

2.3.8 Alarm Cable of the BBU3900The alarm cable carries the alarm signals from the external alarm devices to the BBU3900. It isoptional.

2.3.9 BBU3900 Monitoring Signal CableThe BBU3900 signal cables are the power cabinet signal cable to the APM30 and the signalcable to the EMUA.

2.3.10 Clock Cable of the BBU3900This describes the GPS clock signal cable of the BBU3900.

2.3.1 PGND Cable of the BBU3900The PGND cable ensures the grounding of the BBU3900. The PGND cable is required whenthe BBU3900 is installed in a 19-inch rack. It is not required when the BBU3900 is installed ina 19-inch cabinet/APM30.

Cable ExteriorThe color of a PGND cable is yellow-green, and both ends are single-hole OT terminals. Youcan add 2-hole OT terminals on the installation site.

Figure 2-18 shows the structure of the PGND cable.


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Issue 03 (2008-11-30)

Figure 2-18 PGND cable

(1) Single-hole OT terminal (2) Heat shrink tube

Installation Position

Table 2-21 lists the installation position of the PGND cable.

Table 2-21 Installation position of the PGND cable

One End Connected to The Other End Connected to

Grounding bolt on the BBU3900 PGND wire terminal

2.3.2 Power Cable of the BBU3900The power cables of the BBU3900 are –48 V power cable and +24 V power cable. The selectionof power cables depends on the input power.

NOTE

In the DBS3900, the BBU3900 supports the input mode of –48 V DC through the –48 V power cable.

Cable Exterior

One end of the power cable is a 3V3 power connector, and the other end is an OT terminal. Ifthe other end is bare, you must add an OT terminal on the installation site.

Figure 2-19 shows the +24 V DC power cable.

Figure 2-19 Structure of the power cable

(1) 3V3 power connector (2) OT terminal

NOTE

The –48 V power cable is blue and black in color. The shape of the +24 V power cable is the same as thatof the –48 V power cable, but it is red and black in color.



2-31

Cables Description

The power cable is a 2-wire cable. Table 2-22 and Table 2-23 show the cores and pins.

Table 2-22 Cores and pins of the –48 V power cable

Pin of the Connector Color Description

A1 Blue -48V

A2 - -

A3 Black GND

Table 2-23 Cores and pins of the +24 V power cable

Pin of the Connector Color Description

A1 Red +24V

A2 - -

A3 Black GND


Table 2-24 lists the connections of the BBU3900 power cables.

Table 2-24 Connection of the BBU3900 power cable

3V3 Connected to OT Terminal Connected to

PWR port of the UPEU External input power

NOTE

In the DBS3900, the power distribution box supplies power to the BBU3900. For the cable connectionsbetween different power distribution boxes and the BBU3900, refer to Table 3-5.

2.3.3 E1/T1 Cable of the BBU3900The E1/T1 cable connects the BBU3900 and the BSC. It is used to transmit baseband signals.

Cable Appearance

The BBU3900 uses the following trunk cables: the 75-ohm E1 coaxial cable, 120-ohm E1 twistedpair cable, and 100-ohm T1 twisted pair cable. One end of the E1/T1 cable is a DB26 maleconnector, and the connector at the other end is made on the site depending on the actualrequirement.


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Issue 03 (2008-11-30)

l A 75-ohm coaxial cable consists of eight coaxial cables and can provide four E1 links.

l A 100-ohm twisted pair cable consists of eight pairs of (sixteen) cables and can providefour T1 links.

l A 120-ohm twisted pair cable consists of eight pairs of (sixteen) cables and can providefour E1 links.

Figure 2-20 shows the E1/T1 cable.

Figure 2-20 E1/T1 cable

(1) DB26 connector


Table 2-25 lists the connection of the E1/T1 cable in the BBU3900.

Table 2-25 Connection of the E1/T1 cable

DB26 Connected to The Other End Connectedto

Internal UELP OUTSIDE port on the UELP transmission equipment orBSC

External SLPU OUTSIDE port on the UELP

When the UELP is notused

E1/T1 port on the CMPT

NOTE

The UELP can be installed in the SLPU to provide lightning protection for the E1/T1 cable.

75-Ohm Coaxial Cable

Figure 2-21 shows the structure of the 75-ohm coaxial cable.



2-33

Figure 2-21 Structure of the 75-ohm coaxial cable

(1) DB26 connector (2) Main label (3) 75-ohm coaxial cable (X1-X8)

(4) Cable core (5) Cable sheath

Table 2-26 lists the mapping between the 75-ohm coaxial cable and the DB26 connector.

Table 2-26 Mapping between the 75-ohm coaxial cable and the DB26 connector

Cable

CableNumber Start End Signal Remarks

W1 1 X0.1 X1.Tip CHAN 0 RX CHAN 0

X0.2 X1.Ring

W2 2 X0.19 X2.Tip CHAN 0 TX

X0.20 X2.Ring


X0.4 X3.Ring


X0.22 X4.Ring


X0.6 X5.Ring


X0. 24 X6.Ring


X0.8 X7.Ring



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Issue 03 (2008-11-30)

Cable

CableNumber Start End Signal Remarks

X0.26 X8.Ring

100-Ohm Twisted Pair CableFigure 2-22 shows the structure of the 100-ohm twisted pair cable.

Figure 2-22 Structure of the 100-ohm twisted pair cable

(1) DB26 connector (2) Main label

NOTE

When installing the 100-ohm twisted pair cable, cut off the extra length of cable and pay attention to themapping between the twisted pair cable and the DB26 connector.

Table 2-27 lists the mapping between the 100-ohm twisted pair cable and the DB26 connector.

Table 2-27 Mapping between the 100-ohm twisted pair cable and the DB26 connector

Cable StartColor ofSheath Signal Remarks

W1 X0.19 White/blue CHAN 0 TX CHAN 0

X0.20 Blue/white

W2 X0.1 White/orange CHAN 0 RX

X0.2 Orange/white

W3 X0.21 White/green CHAN 1 TX CHAN 1

X0.22 Green/white

W4 X0.3 White/brown CHAN 1 RX

X0.4 Brown/white



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W5 X0.23 White/gray CHAN 2 TX CHAN 2

X0.24 Gray/white

W6 X0.5 Red/blue CHAN 2 RX

X0. 6 Blue/red

W7 X0.25 Red/orange CHAN 3 TX CHAN 3

X0.26 Orange/red

W8 X0.7 Red/green CHAN 3 RX

X0.8 Green/red

120-Ohm Twisted Pair CableFigure 2-23 shows the structure of the 120-ohm twisted pair cable.

Figure 2-23 Structure of the 120-ohm twisted pair cable

(1) DB26 connector (2) Main label

Table 2-28 lists the mapping between the 120-ohm twisted pair cable and the DB26 connector.

Table 2-28 Mapping between the 120-ohm twisted pair cable and the DB26 connector


W1 X0.19 Gray CHAN 0 TX CHAN 0

X0.20 White

W2 X0.1 Blue CHAN 0 RX

X0.2 White


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W3 X0.21 Blue CHAN 1 TX CHAN 1

X0.22 Red

W4 X0.3 Orange CHAN 1 RX

X0.4 White

W5 X0.23 Orange CHAN 2 TX CHAN 2

X0.24 Red

W6 X0.5 Green CHAN 2 RX

X0. 6 White

W7 X0.25 Green CHAN 3 TX CHAN 3

X0.26 Red

W8 X0.7 Brown CHAN 3 RX

X0.8 White

2.3.4 BBU3900 E1/T1 Lightning Protection Conversion CableThe E1/T1 lightning conversion cable connects the CMPT/UTRP and the E1/T1 lightningprotection board. It is an optional cable.

Cable Exterior

One end of the E1/T1 lightning protection conversion cable is a DB26 male connector, and theother end is a DB25 male connector.

Figure 2-24 shows the E1/T1 lightning protection conversion cable.

Figure 2-24 E1/T1 lightning protection conversion cable

(1) DB25 connector (2) DB26 connector

Cables Description

Table 2-29 lists the use of the pins of the E1/T1 lightning protection conversion cable.



2-37

Table 2-29 Cores and pins of the E1/T1 lightning conversion cable

DB26 Connector Pin Use of Core DB25 Connector Pin

X1.20 Twisted pair cable X2.2

X1.19 X2.3


X1.3 X2.5


X1.21 X2.7


X1.5 X2.9


X1.23 X2.11


X1.7 X2.13


X1.2 X2.15


X1.26 X2.25

Installation PositionTable 2-30 lists the installation position of the E1/T1 lightning protection conversion cable.

Table 2-30 Installation position of the E1/T1 lightning protection conversion cable

DB26 Connected to DB25 Connected to

When the UTRP isnot installed

E1/T1 port on the CMPT INSIDE port on the UELP

When the UTRP isinstalled

l E1/T1 port on the UTRP

l E1/T1 port on the CMPT

2.3.5 FE Cable of the BBU3900The FE cable connects the BBU3900 and the router in the equipment room so that the BBU3900can communicate with the BSC.


User Guide


Issue 03 (2008-11-30)

Cable ExteriorBoth ends of the FE cable are RJ45 connectors.

Figure 2-25 shows the FE cable.

Figure 2-25 FE Ethernet cable

(1) RJ45 connector

Cables DescriptionTable 2-31 lists the pin assignment for the FE cable.

Table 2-31 Cores and pins of the FE cable

Pin of the RJ45Connector

Use of Core Use of Core Pin of the RJ45Connector

X1.2 Orange Twisted pair cable X2.2

X1.1 White/orange X2.3

X1.6 Green Twisted pair cable X2.4

X1.3 White/green X2.5

X1.4 Blue Twisted pair cable X2.6

X1.5 White/blue X2.7

X1.8 Brown Twisted pair cable X2.8

X1.7 White/brown X2.9

Installation PositionTable 2-32 lists the connection of the BBU3900 FE cable.

Table 2-32 Connection of the FE cable


When the internal UFLPis used

OUTSIDE FE0/FE1 porton the UFLP

Routing device (connected to theBSC)

External SLPU

When the UFLP is notused

FE0 port on the CMPT



2-39

NOTE

The UFLP can be installed in the SLPU for the lightning protection of the FE cable.

2.3.6 FE Lightning Protection Conversion Cable of the BBU3900The FE lightning protection conversion cable is used to connect the CMPT and the UFLP. It isoptional.

Cable ExteriorBoth ends of the FE lightning protection conversion cable are RJ45 connectors.

Figure 2-26 shows the FE lightning protection conversion cable.

Figure 2-26 FE lightning protection conversion cable

(1) RJ45 connector

Cables DescriptionTable 2-33 lists the pin assignment for the FE cable.

Table 2-33 Cores and pins of the FE cable


Use of Core Use of Core Pin of the RJ45Connector

X1.2 Orange Twisted pair cable X2.2

X1.1 White/orange X2.3

X1.6 Green Twisted pair cable X2.4

X1.3 White/green X2.5

X1.4 Blue Twisted pair cable X2.6

X1.5 White/blue X2.7

X1.8 Brown Twisted pair cable X2.8

X1.7 White/brown X2.9

Installation PositionTable 2-34 lists the connection of the FE lightning protection conversion cable.


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Issue 03 (2008-11-30)

Table 2-34 Connection of the FE lightning protection conversion cable


FE0 port on the CMPT FE port at the INSIDE position of the UFLP

2.3.7 BBU3900 CPRI CableThe CPRI cable carries CPRI signals between the BBU3900 and the RRU/ODU. There are twotypes of CPRI cables, namely, optical fiber and SFP cable. The SFP cable is used only when theBBU and the RRU/ODU are both installed indoors. In other scenarios, an optical fiber is used.

Optical fiber

The CPRI optical cable is a multi-mode 2-wire cable with LC connectors at both ends. Figure2-27 shows the CPRI optical cable.

Figure 2-27 CPRI optical fiber

(1) DLC connector (2) Label(3) Fiber tail

SFP Cable

In the scenario of indoor centralized installation, the SFP high-speed cable is used to connectthe BBU and the RRU/ODU.

Figure 2-28 shows the structure of the SFP cable.

Figure 2-28 Structure of the SFP cable


Table 2-35 lists the connection of the CPRI cable in the BBU3900.



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Table 2-35 Installation position of the CPRI cable of the BBU3900


Optical fiber SFP on the HCPM/HECMNOTE

When the optical cable is used, youmust install the removable opticalmodule.

l ODU3601CE: SFP port on theOMTR, silk screen: A

l RRU3606: CPRI_W port on theRRU

NOTEWhen the optical cable is used, you mustinstall the removable optical module.

SFP Cable

2.3.8 Alarm Cable of the BBU3900The alarm cable carries the alarm signals from the external alarm devices to the BBU3900. It isoptional.

Cable ExteriorBoth ends of the alarm cable are RJ45 connectors. During installation, you must add a terminalthat is compatible with the external alarm device to one end of the cable.

Figure 2-29 shows the alarm cable.

Figure 2-29 Alarm cable of the BBU3900

(1) RJ45 connector

Cables DescriptionTable 2-36 lists the pin assignment for the alarm cable.

Table 2-36 Cores and pins of the alarm cable



Use of Core Use of Core

X1.1 X2.1 White/orange Twisted pair cable

X1.2 X2.2 Orange

X1.3 X2.3 White/green Twisted pair cable

X1.6 X2.6 Green

X1.5 X2.5 White/blue Twisted pair cable

X1.4 X2.4 Blue


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Use of Core Use of Core

X1.7 X2.7 White/brown Twisted pair cable

X1.8 X2.8 Brown

Installation PositionTable 2-37 lists the connection of the BBU3900 alarm cable.

Table 2-37 Connection of the alarm cable


EXT_ALM0 port or EXT_ALM1 port on theUPEU

Alarm signal port on the external alarmdevice

2.3.9 BBU3900 Monitoring Signal CableThe BBU3900 signal cables are the power cabinet signal cable to the APM30 and the signalcable to the EMUA.

2.3.9.1 Signal Cable Connecting the BBU3900 and the EMUAThe signal cable from the BBU3900 to the EMUA is delivered with the EMUA. It is used tocarry the Boolean signal from the EMUA to the BBU3900.

2.3.9.2 Signal Cable Connecting the BBU3900 and the APM30 (–48 V) Power Supply CabinetThe signal cable connecting the BBU3900 and the APM30 (–48 V) is delivered with the APM30.It is used to carry the monitoring alarm signal from the APM30 (–48 V) power supply cabinetto the BBU3900.

Signal Cable Connecting the BBU3900 and the EMUAThe signal cable from the BBU3900 to the EMUA is delivered with the EMUA. It is used tocarry the Boolean signal from the EMUA to the BBU3900.

Cable ExteriorFigure 2-30 shows the EMUA signal cable.



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Figure 2-30 EMUA signal cable

(1) RJ45 connector (2) DB9 male connector

Cables Description

Table 2-38 lists the cores and pins of the EMUA signal cable.

Table 2-38 Cores and pins of the EMUA signal cable

Pin of theRJ45Connector

DB9 Male Connector Color Description

X1.1 X2.3 White Twisted pair cable

X1.2 X2.7 Orange

X1.4 X2.2 White Twisted pair cable

X1.5 X2.6 Blue


Table 2-39 lists the installation position of the EMUA signal cable.

Table 2-39 Installation position of the EMUA signal cable

RJ45 Connector Connected to DB9 Male Connector Connected to

MON1 port on the UPEU RS485 port on the EMUA

Signal Cable Connecting the BBU3900 and the APM30 (–48 V) Power SupplyCabinet

The signal cable connecting the BBU3900 and the APM30 (–48 V) is delivered with the APM30.It is used to carry the monitoring alarm signal from the APM30 (–48 V) power supply cabinetto the BBU3900.


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Cable ExteriorFigure 2-31 shows the APM30 (–48 V) signal cable.

Figure 2-31 APM30 (–48 V) signal cable

(1) RJ45 connector (2) Bare wire

Cables DescriptionTable 2-40 lists the cores and pins of the APM30 (–48 V) signal cable.

Table 2-40 Cores and pins of the APM30 (–48 V) signal cable


Color Port on the APM30

X1.1 White/orange TX+

X1.2 Orange TX-

X1.4 Blue RX+

X1.5 White/blue RX-

NOTE

The other four cores are not used.

Installation PositionTable 2-41 lists the installation position of the EMUA signal cable.

Table 2-41 Installation position of the EMUA signal cable

RJ45 Connector Connected to Bare Wires Connected to

EXT-ALM of the UPEU AMPI of the APM30. For the connection relation, seeTable 2-40.



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2.3.10 Clock Cable of the BBU3900This describes the GPS clock signal cable of the BBU3900.

Cable ExteriorOne end of the clock cable is an SMA male connector, and the other end is an N-type connector.

Figure 2-32 shows the clock cable.

Figure 2-32 GPS clock cable

(1) SMA male connector (2) N-type connector

Installation PositionTable 2-42 lists the installation position of the clock cable.

Table 2-42 Installation position of the clock cable

SMA Male Connector Connected to N-Type Connector Connectedto

When the USCU isnot used

GPS port on the CMPT GPS lightning arrester at the BBUside

When the USCU isused

GPS port on the USCU

CAUTIONThe GPS lightning arrester of the BBU must be installed at a proper position and groundedreliably. The GPS lightning arrester and the BBU must have the same potential.


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3 Auxiliary Devices of the BBU3900

About This Chapter

The auxiliary devices of the BBU3900 are the indoor installation rack, APM30, power supplydevice, monitoring and lightning protection device.

3.1 Indoor Installation RackThe indoor installation rack provides a maximum space of 10 U. It can house standard 19-inchdevices, including the BBU3900 and RRU3606. The indoor installation rack can be fixed on thewall or the floor, or be stacked on other object.

3.2 APM30The AMP30 is an integrated backup power supply system. It can be installed outdoors. TheAPM30 provides power supply, backup power supply, transmission space, and lightningprotection for a distributed BTS. It supports multiple types of custom power supplies andextended storage battery cabinets.

3.3 Power Supply DevicesThe power supply device converts the external power supply to the –48 V DC power for theBBU3900.

3.4 SLPUThe Signal Lightning Protection Unit (SLPU) is installed outside the BBU3900. It protects theE1/T1 signals and Ethernet signals from lightning surge.

3.5 EMUAThe Environment Monitoring Unit (EMUA) is used to monitor the environment variables insidethe cabinet and handle the alarms. The BBU3900 can monitor the cabinet environment and drycontact alarms through the EMUA.

Airbridge BBU3900 CDMA Baseband UnitUser Guide 3 Auxiliary Devices of the BBU3900


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3.1 Indoor Installation RackThe indoor installation rack provides a maximum space of 10 U. It can house standard 19-inchdevices, including the BBU3900 and RRU3606. The indoor installation rack can be fixed on thewall or the floor, or be stacked on other object.

Equipment Exterior

Figure 3-1 shows the indoor installation rack and the installation mode.

Figure 3-1 Indoor installation rack and the installation mode

NOTE

l If you want to fix the indoor installation rack on the wall, ensure that the load-bearing capacity of thewall is 80 kg [176.37 lb] or higher.

l If two indoor installation racks are fixed on the wall and aligned horizontally, the distance betweenthem must be smaller than 10 mm [0.39 in.].

l For the installation of the indoor installation rack, refer to Indoor Installation Rack.

Engineering Specifications

Table 3-1 lists the engineering specifications of the indoor installation rack.

Table 3-1 Engineering specifications of the indoor installation rack

Item Specification

Dimensions (W x D x H) 600 mm x 450 mm x 700 mm [23.62 in. x 17.72in. x 27.56 in.]

Weight 18 kg [39.68 lb]

3 Auxiliary Devices of the BBU3900Airbridge BBU3900 CDMA Baseband Unit

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Item Specification

Space for user devices (W x D x H) 482.60 mm (19-inch) x 370 mm x 444.50 mm (10U) [19 in. x 14.57 in. x 17.5 in.]

ScenariosIn terms of the DBS3900, the indoor installation rack supports only the BBU3900 and theRRU3606. It does not support the ODU3601CE. The following are the scenarios:l For indoor centralized installation, the –48 V DC input is supported. Figure 3-2 shows the

installation scenario.l For indoor distributed installation, the –48 V DC input is supported. Figure 3-3 shows the

installation scenario.

Figure 3-2 Indoor centralized installation



3-3

Figure 3-3 Indoor distributed installation

3.2 APM30The AMP30 is an integrated backup power supply system. It can be installed outdoors. TheAPM30 provides power supply, backup power supply, transmission space, and lightningprotection for a distributed BTS. It supports multiple types of custom power supplies andextended storage battery cabinets.

Equipment ExteriorWith different modules equipped, the APM30 can be used as a power supply cabinet, batterycabinet, or transmission cabinet. Figure 3-4 shows the power supply cabinet and transmissioncabinet. Figure 3-5 shows the battery cabinet.


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Figure 3-4 APM30 (power supply cabinet/transmission cabinet)

Figure 3-5 APM30 (battery cabinet)

The following describes the three applications of the APM30:

l Power supply cabinet

– Equipped with the embedded AC/DC power supply system (containing PSUAC/DC andPMU); supporting the AC input modes of 220 V single-phase, 110 V dual-live wires,and 220 V three-phase



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– Providing two lines of AC output, and ten lines of DC power distribution

– Supporting internal storage battery for standby power supply

– Providing space for installing user equipment

l Battery cabinet

– Providing DC standby power supply of -48 V 50 Ah or -48 V 100 Ah (two storagebattery groups) when equipped with -48 V 50 Ah storage battery group

– Providing DC standby power supply of -48 V 92 Ah or -48 V 184 Ah (two storagebattery groups) when equipped with -48 V 92 Ah storage battery group

l Transmission cabinet

– Equipped with the DCDU, supporting –48 V DC power input

– Providing DC power supply for the user devices, one line of input and nine lines ofoutput

– Providing 11 U space for installing user devices

NOTE

For the description and installation guide of the APM30, refer to the APM30 User Guide.

Engineering Specifications

Table 3-2 lists the engineering specifications of the APM30.

Table 3-2 Engineering specifications for the APM30

Type Item Specification Remarks

APM30 Cabinet dimensions(width x height xdepth)

600 mm x 700 mm x 480 mm [23.62in. x 27.56 in. x 18.9 in.]

When the base isnot used

Dimensions of thebase (W x H x D)

600 mm x 200 mm x 480 mm [23.62in. x 7.87 in. x 18.9 in.]

-

Powersupplycabinet

Cabinet weight ≤ 65 kg [143.3 lb] Storage batterygroup and usertransmissiondevice notincluded

Space for user devices(W x H x D)

l With storage battery group: 82.6mm x 222.25 mm x 310 mm [19in. x 8.75 in. (5 U) x 12.2 in.]

l Without storage battery group:82.6 mm x 311.15 mm x 310 mm[19 in. x 12.25 in. (7 U) x 12.2 in.]

Maintenance space offront cable outlet

32 mm [1.26 in.]

Dustproof andwaterproof

IP55


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Type Item Specification Remarks

Installation mode Supporting floor installation, metalmast, stack on the RF cabinet orextended battery cabinet

Batterycabinet

Cabinet weight ≤ 41 kg [90.39 lb] Storage batteriesnot included

Storage battery Supporting –48 V 50 Ah/92 Ahstorage battery group

Dustproof andwaterproof

IP34

Installation mode Supporting floor installation andstack on the RF cabinet or powersupply cabinet

Transmissioncabinet

Space for user devices(W x D x H)

482.60 mm (19-inch) x 370 mm x444.50 mm (10 U) [19 in. x 14.57 in.x 17.5 in.]

Installation Scenarios (DBS3900)In terms of DBS3900, the APM30 supports the AC power input modes of 220 V single-/three-phase and 110 V dual-live wires.l Outdoor distributed installation: the BBU is installed in the APM30, and the RRUs/ODUs

are distributed in remote locations.l Outdoor centralized installation: the BBU is installed in the APM30, and the RRUs/ODUs

are centralized in a remote location.The APM30 provides 7 U internal space for the installation of the BBU and transmission devices.It uses an embedded power supply system to supply –48 V DC power to the distributed BTSand transmission devices and to recharge the storage batteries. If the mains supply is disrupted,the internal storage battery group or the storage battery group in the battery cabinet supplies –48 V DC power to the distributed BTS and the transmission equipment.

The APM30 can use internal storage batteries or external storage batteries in the battery cabinet.Figure 3-6 and Figure 3-7 show the scenarios.



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Figure 3-6 APM30 working with distributed BTS (internal storage batteries)

Figure 3-7 APM30 working with distributed BTS (external storage batteries)

3.3 Power Supply DevicesThe power supply device converts the external power supply to the –48 V DC power for theBBU3900.


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NOTE

In different installation scenarios, the BBU3900 uses different power supply devices. The following describesthe power supply device of the DBS3900.

Power Supply Solutions for the DBS3900The power supply device of the DBS3900 supports the indoor power supply of –48 V DC(indoor) and outdoor power supplies of 110 V AC, 220 V AC, and –48 V DC. Table 3-3 listspower supply solutions.

Table 3-3 Power supply solutions for the DBS3900

Power InputMethod

Configuration ofPower SupplyDevices

Description

Indoor –48 V DCinput

DC power distributionbox DCDU-03B

l Power distribution: one line of –48 VDC input; nine lines of –48 V DCoutput, among which three lines are 12A, and six lines are 20 A

l DC lightning protection capacity: 15kA

Outdoor 110/220 VAC input

APM30 AC powersupply cabinet:l AC power supply

module PSUAC/DC

l Power distributionbox PDU

l Power supply conversion: 220 V/110 VAC power supply into –48 V DC

l Power distribution: one line of DCinput; 2 lines of –48 V DC output andten lines of DC output, among which sixlines are 20 A, two lines are 12 A, andtwo lines are 4 A


Outdoor –48 V DCinput

APM30 (–48 V) DCpower supply cabinetl DC power

distribution boxDCDU-03C

l Power distribution: one line of –48 VDC input; nine lines of –48 V DCoutput, among which seven lines are 12A, and two lines are 6 A


3.3.1 Power Supply ModuleThe DBS3900 supports the indoor power supply of –48 V DC (indoor) and outdoor powersupplies of 110 V AC, 220 V AC, and –48 V DC. The AC power supply module can convertthe external AC power supply to –48 V AC.

3.3.2 Power Distribution BoxThe DBS3900 supports the AC/DC power distribution box PDU and the DC power distributionbox DCDU.



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3.3.1 Power Supply ModuleThe DBS3900 supports the indoor power supply of –48 V DC (indoor) and outdoor powersupplies of 110 V AC, 220 V AC, and –48 V DC. The AC power supply module can convertthe external AC power supply to –48 V AC.

l In the scenario of outdoor AC power supply, the BBU3900 is installed in the APM30 ACpower supply cabinet and uses the AC power module.

l By default, the APM30 AC power cabinet contains an AC power supply module. Therefore,you do not need to install it onsite.

The AC power supply module consists of the PMU, PSUAC/DC, and power supply subrack, asshown in Figure 3-8.

Figure 3-8 AC power supply module

(1) PSUAC/DC (2) PMU

The AC power supply module has the following functions:l Supporting the 220 V single-/three-phase and the 110 V two-phase power supply input and

the –48 V DC power supply outputl Reporting power supply alarms

3.3.2 Power Distribution BoxThe DBS3900 supports the AC/DC power distribution box PDU and the DC power distributionbox DCDU.

PDU

The PDU supports 220/110 V AC input, 2 lines of AC output, and 10 lines of –48 V DC outputfor AC/DC power distribution.l By default, the APM30 AC power supply cabinet uses the PDU.

l Output current:– AC: 10 A (max.)

– DC: 4 A (LOAD0–LOAD1), 12 A (LOAD2–LOAD3), 20 A (LOAD4–LOAD9)


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NOTE

By default, the APM30 AC power cabinet contains a PDU. Therefore, you do not need to install it onsite.

Figure 3-9 shows the exterior of the PDU.

Figure 3-9 DC PDB

(1) AC input wire terminal(N)

(2) AC input wire terminal(L)

(3) AC input wire terminals(Lout1 and Lout2)

(4) AC output wireterminals (Nout1 andNout2)

(5) MCB for AC input (6) MCB for AC output (7) MCBs for DC output(SW0–SW9)

(8) DC input wire terminals(LOAD0–LOAD9)

Table 3-4 lists how to use the AC PDB.

Table 3-4 How to use the AC PDB

AC Input Mode Power Cable Wiring Mode Short ConnectingMode

Single-phase 220V AC

L Any of L1, L2, and L3 L wire post: connected

N N wire post N wire post: connected

Three-phase 220V AC

L1 L1 L wire post: notconnected

L2 L2

L3 L3


Two-phase 110 VAC

L1 L1 L wire post: L2 and L3connected

L2 L2


NOTE

The strap for the L wire post of AC INPUT on the PDU is installed before delivery. If the AC input is three-phase 220 V, you must remove the strap from the L wire post.



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DCDU

The DCDU supports one line of –48 V DC input and nine lines of –48 DC output for DC powerdistribution.

DCDU has two models:

l DCDU-03B

– The DCDU-O3B is used when the BBU3900 installed in a 19-inch cabinet/rack/indoorinstallation rack.

– Output current: 20 A (LOAD0–LOAD5) and 12 A (LOAD6–LOAD8)

l DCDU-03C

– By default, the APM30 (–48 V) power supply cabinet uses the DCDU-03C.

– Output current: 12 A (LOAD0–LOAD6) and 2 A (LOAD7–LOAD8)

NOTE

By default, the APM30 (–48 V DC) AC power cabinet contains a DCDU-03C. Therefore, you do not needto install it onsite.

Models have the same exterior design. The silkscreen indicating the model is printed on thebottom-right of the panel, as shown in Figure 3-10.

Figure 3-10 Exterior of the DCDU

Cable Connections Between the Power Distribution Box and the BBU3900

In the DBS3900, the power distribution box is the direct power supply device for the BBU3900.It supplies –48 V DC power to the BBU3900.

The 3V3 connector of the BBU3900 –48 V power cable is connected to the UPEU, and the OTterminal is connected to the DC output terminal of the power distribution box. For the cableconnections between the power distribution box and the BBU3900, refer to Table 3-5.

Table 3-5 Cable connections between the power distribution box and the BBU3900 (DBS3900)

Type of PowerDistributionBox

Scenarios Cable Connection (–48 V Power Cableof the BBU3900)

PDU APM30 AC power supplycabinet

OT terminal:l Any terminal pair in LOAD2–LOAD3

l Positive (black) to RTN (+)

l Negative (blue) to REG (–)

3V3 connector: PWR port on the UPEU ofthe BBU3900


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Type of PowerDistributionBox

Scenarios Cable Connection (–48 V Power Cableof the BBU3900)

DCDU-03C APM30 (–48 V) DCpower supply cabinet





DCDU-03B l 19-inch cabinet

l 19-inch rack

l Indoor InstallationRack





3.4 SLPUThe Signal Lightning Protection Unit (SLPU) is installed outside the BBU3900. It protects theE1/T1 signals and Ethernet signals from lightning surge.

Function

In the SLPU, the use of the UFLP or the UELP depends on the type of the trunk cable. Figure3-11 shows the SLPU panel.

Figure 3-11 SLPU with a UELP and a UFLP

The SLPU has the following functions:l The SLPU can be configured with a maximum of four surge protectors, namely, E1/T1

surge protectors and FE surge protectors UFLP.l One E1/T1 surge protector supports four E1s/T1s for surge protection.

l One FE surge protector supports two channels of Ethernet signals for surge protection.

l It can be installed in the 19-inch cabinet.

Configuration Principle

The use of the SLPU must follow the following rules:l When the BBU3900 uses a UTRP, the SLPU must be used.



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l When the BBU3900 is installed outdoors, the SLPU must be used.

3.5 EMUAThe Environment Monitoring Unit (EMUA) is used to monitor the environment variables insidethe cabinet and handle the alarms. The BBU3900 can monitor the cabinet environment and drycontact alarms through the EMUA.

Functionl Supporting a maximum of 32 dry contact connections

l Supporting the installation in the 19-inch cabinet and on the indoor installation rack

l Supporting the following monitoring items:– Environment monitoring (including temperature, water penetration, smoke, and fog)

– Intruder monitoring (through infrared or access control)

– Monitoring power distribution

Configuration PrincipleThe BBU3900 provides 16 dry contact connections and two 485 alarm connections. The EMUAcan be added to expand the environment monitoring capacity and dry contract capacity.

The use of the EMUA must follow the following rules:l If the number of alarm connections is smaller than 16, the EMUA is not required.

l If the number of alarm connections is greater than 16 and smaller than 32, an EMUA isrequired.

For details about the EMUA, see the EMUA User Guide.


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Issue 03 (2008-11-30)

4 Installing the Hardware of the BBU3900

About This Chapter

This describes the safety precautions, installation background information, installationprocedure, and installation checklist.

4.1 Information About the Installation of the BBU3900Before installing, operating and maintaining the BBU3900, you must learn the backgroundinformation about the installation mode, required space for installation, requirement for cablelayout.

4.2 Preparations for Installing the BBU3900Before you install a BBU3900, check whether the equipment in the package carton is intact andensure that the installation tools are available.

4.3 Installing the BBU3900The primary procedures for installing the BBU3900 involve making preparations, installing thebody, installing the cables, and checking the hardware installation.

4.4 Scenario 1: Installing the BBU3900 in the 19-Inch CabinetIf the DBS3900 is installed indoors, it supports only the –48 V DC power input. In this case, theBBU3900 can be installed in the 19-inch cabinet. The parts to be installed are the BBU3900body, DCDU, SLPU lightning protection box (optional), and BBU3900 cables.

4.5 Scenario 2: Installing the BBU3900 in the AMP30In the outdoor installation, the DBS3900 supports the power input modes of 220 V AC, 110 VAC, and -48 V DC. In this cause, the BBU3900 can be installed in the APM30 AC cabinet orthe APM30 (–48 V) DC cabinet. The parts to be installed are the BBU3900 body, SLPU lightningprotection box, and BBU3900 cables.

4.6 Scenario 3: Installing the BBU3900 on the Indoor Installation RackIf the DBS3900 is installed indoors, it supports only the –48 V DC power input. In this case, theBBU3900 can be installed on the indoor installation rack. The parts to be installed are theBBU3900 body, DCDU, SLPU lightning protection box (optional), and BBU3900 cables.

4.7 Scenario 4: Installing the BBU3900 in the 19-Inch RackIf the DBS3900 is installed indoors, it supports only the –48 V DC power input. In this case, theBBU3900 can be installed in the 19-inch rack.The parts to be installed are the BBU3900 body,DCDU, SLPU lightning protection box (optional), and BBU3900 cables.

Airbridge BBU3900 CDMA Baseband UnitUser Guide 4 Installing the Hardware of the BBU3900


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4.8 Scenario 5: Installing the BBU3900 in a BTS3606AE CabinetThe BBU3900 can be installed in the cabinet of the BTS3606AE.

4.9 Checking the Hardware Installation of the BBU3900After the hardware installation of the BBU3900 is complete, you must check the installation andpower on it to confirm the installation.

4 Installing the Hardware of the BBU3900Airbridge BBU3900 CDMA Baseband Unit

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4.1 Information About the Installation of the BBU3900Before installing, operating and maintaining the BBU3900, you must learn the backgroundinformation about the installation mode, required space for installation, requirement for cablelayout.

4.1.1 Installation Modes of the BBU3900The BBU3900 can be installed in an APM30, indoor installation rack, 19-inch rack, or 19-inchcabinet.

4.1.2 Space Required for the Installation of the BBU3900Different installation modes of the BBU3900 have different requirements for space ofinstallation.

4.1.3 General Requirements for BTS Cable LayoutThe layout of power cables and signal cables must meet certain requirements to avoidelectromagnetic interference. The cable layout of the BBU3900 must meet the generalrequirements for BTS cable layout.

4.1.4 Connection Relations of BBU3900 CablesThis describes the cable connections between BBU3900 and its peers, such as the RRU3600/ODU3601CEU and the BSC.

4.1.1 Installation Modes of the BBU3900The BBU3900 can be installed in an APM30, indoor installation rack, 19-inch rack, or 19-inchcabinet.

Figure 4-1 lists the installation modes that the BBU3900 supports.



4-3

Figure 4-1 Installation modes of the BBU3900

4.1.2 Space Required for the Installation of the BBU3900Different installation modes of the BBU3900 have different requirements for space ofinstallation.

Figure 4-2 shows the space required for the installation of the BBU3900.

Figure 4-2 Space for different installation modes of the BBU3900 (unit: mm)

l A minimum space of 25 mm [0.98 in.] must be ensured on both sides for ventilation.

l A minimum space of 70 mm [2.76 in.] must be ensured in front of the panel for cable run.


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4.1.3 General Requirements for BTS Cable LayoutThe layout of power cables and signal cables must meet certain requirements to avoidelectromagnetic interference. The cable layout of the BBU3900 must meet the generalrequirements for BTS cable layout.

General Requirements for Bend Radii of Cables

Table 4-1 General requirements for bend radii of cables

Cable Type Required Bend Radius

Cable with single-layersheath

2.5 mm ≤ D ≤ 4.5 mm [0.1in. ≤ D ≤ 0.18 in.]

R ≥ 2D

D ≥ 4.5 mm [0.18 in.] R ≥ 3D

Shielded or unshielded cablewith two or more cores

6.5 mm ≤ D ≤ 12.5 mm[0.26 in. ≤ D ≤ 0.49 in.]

R ≥ 2D

D ≥ 12.5 mm [0.49 in.] R ≥ 3D

Optical fiber R ≥ 20D

NOTE

The D in this table stands for the diameter of the cable sheath, and the R stands for the bend radius of thecable.

General Requirements for BTS Cable Binding

l Cables of different types must be laid separately. They cannot be bundled together andcannot be twisted together.

l The cables must be tightly bundled. The layout must be straight and neat. The sheath cannotbe damaged.

l The spacing of cable ties is 200 mm [7.87 in.]. Tip points of the cable ties face the samedirection as others. Ensure that the cable ties are aligned in rows horizontally. Cut flushwith the locking edge of the cable ties.

l After the installation, cables are attached with labels or tags.

General Requirements for Type-Based Cable Layout

l Different types of cables must be laid separately.

l Different types of cables cannot be laid crossing each other.

l When cables of the same type are laid parallel inside the cabinet, the cable spacing mustbe longer than 30 mm [1.18 in.]; when they are laid parallel outside the cabinet, the cablespacing must be longer than 100 mm [9.34 in.]. If such spacing requirements cannot besatisfied, separate them with dedicated isolator.



4-5

Requirements for the Layout of Power Cables and PGND Cables

l The positions of the cables must meet the engineering drawing and the general cablingstandard.

l If a cable is not long enough, replace it. Ensure that cables have no knot or welding joints.

l If the cables must be bound to a metal cable rack, you must apply insulation treatment.

l Never add any fuse box or switch to grounding cables. Bind the –48 V or +24 V powercable and the GND cable together.

l Connect the connector securely. The grounding connector should be processed. Therefore,it is not easily eroded or rusted.

l Run the low-voltage AC power cables through metallic tubes and bury these tubes (at least50 m [164.04 ft] near the equipment room) underground before leading them into theequipment room. If the cable is shorter than 50 m [164.04 ft], the entire cable must beburied.

l Never use overhead cabling to lead low-voltage AC power cables into the mobilecommunication site. Such cables are threats to the lightning protection of the AC powerport.

l Never lead grounding cables overhead into the room. The entire cables must be buriedunderground or run indoors.

Requirements for E1/T1 Cable Layout


l Outdoor E1/T1 cables cannot be run overhead.

l In outdoor cabling, E1/T1 cables can be run underground through PVC tube.

l If the outdoor part of an E1/T1 cable is longer than 5 m [16.4 ft], a lightning protection boxmust be used for grounding.

l The bend of an E1/T1 cable must have some redundancy.

l If possible, ground the idle wires in E1/T1 cables inside the equipment room.

Requirements for Fiber Layout


l The bend of a fiber cable must have some redundancy.

l Do not apply too much force while pulling out the optical fibers and keep fibers away fromsharp objects to avoid damage. If the traces of folding or pressing can be found on a fiber,or the connector is damaged, do not use this fiber.

l Extra fibers must be coiled up with a dedicated device, such as an FMT. When coiling upextra optical fibers, do not bend the fibers too tight.

l If naked fibers without protection are used, use protection tubes.

l Cover the idle fiber connectors with protective caps.

l If one end of a fiber is connected to an optical device, to avoid injuries, never point theother end to your eyes.


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l To avoid damaging fibers, you must stuff the fiber inlet with soft filler. Fire cotton isrecommended.

l Before installation, check whether the fiber connector is contaminated. If it is contaminated,use dust-free cotton or fiber optic cleaning kits to clean the connector.

4.1.4 Connection Relations of BBU3900 CablesThis describes the cable connections between BBU3900 and its peers, such as the RRU3600/ODU3601CEU and the BSC.

Figure 4-3 shows the cable connections for the BBU.

Figure 4-3 Cable connections of the BBU

l E1/T1 cables, FE cables and fibers can be used to connect the BBU to the BSC.

l The two types of CPRI cables, SFP cable and optical cable, can both be used to connectthe BBU and the RRU/ODU through their CPRI ports that is SFP ports. To use fibers,optical modules are required.

l E1 conversion cables are used to connect the UELP/UFLP and the CMPT.

l DC power cables and signal cables are used to connect the BBU and the auxiliary devices.

NOTE

l If the BBU is installed in a 19-inch rack, you must install the PGND cables to ensure the grounding.

l The cable run of the BBU must meet the standard. The cables led from the boards on the left must berouted along the left side of the BBU, and the cables led from the boards on the right must be routedalong the right side of the BBU

4.2 Preparations for Installing the BBU3900Before you install a BBU3900, check whether the equipment in the package carton is intact andensure that the installation tools are available.

4.2.1 Installation Tools for the BBU3900The installation tools include general tools, dedicated tools, and instruments.

4.2.2 Unpacking the BBU3900



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Unpacking the carton to check the integrity of the equipment is the prerequisite for installation.

4.2.1 Installation Tools for the BBU3900The installation tools include general tools, dedicated tools, and instruments.

Table 4-2 lists the tools and instruments required for installing the BBU3900.

Table 4-2 Tools and instruments

Type Tool

Universal tools Measuring andmarkinginstruments

Long tape, ruler (1 m [3.28 ft.]), marker, powdermarker, and pencil

Drilling tools One percussion drill, matched drill bits, and onecleaner

Fastening tools l M3–M6 straight screwdrivers,

l M3–M6 cross screwdrivers,

l adjustable wrenches,

l M6, M8, M12, M14, M17, and M19 socketwrenches, and

l M6, M8, M12, M14, M17, and M19 doubleoffset ring wrenches

small tools Sharp-nose pliers, diagonal pliers, pliers, hand-held electric drill, file, handsaw, crowbar, andrubber hammer

Auxiliary tools Brush, nipper, paper knife, bellows, electricirons, solder wire, and ladders

Special tools Earth resistance tester, ESD wrist strap, ESDgloves, cable peeler, crimping pliers, RJ-45crimping pliers, and wire punchdown tool

Instrument Multimeter, 500 V megaohm meter (for testingthe insulation resistance), BER tester, andoptical power meter

4.2.2 Unpacking the BBU3900Unpacking the carton to check the integrity of the equipment is the prerequisite for installation.

CAUTIONWhen transporting, moving, and installing the equipment, components, or parts, prevent themfrom colliding with doors, walls, or shelves.


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To inspect the BBU3900 equipment, do as follows:

1. Check whether the total number of components is consistent with the number in the packinglist attached to the package carton.

2. Check whether all the package cartons are intact.3. Check the number and type of components according to the packing list, and then proceed

with the next step according to the checking result.

4.3 Installing the BBU3900The primary procedures for installing the BBU3900 involve making preparations, installing thebody, installing the cables, and checking the hardware installation.

CAUTIONThe BTS must be powered on within 24 hours after the installation is complete.

The procedure for installing the BBU3900 is as follows:

1. Unpack the BTS3703 packing container and check the delivered items. Keep ready thetools required for the installation. Refer to Preparations for Installing the BBU3900.

2. Install the body.According to specific scenario, select the installation mode. Refer to Installation Modesof the BBU3900.

3. Installing cables.According to specific scenario, select the installation mode for cables. For the details aboutthe cables, refer to BBU3900 Cables. For details about cable connections, refer toConnection Relations of BBU3900 Cables.

4. Checking the installation Refer to Checking the Hardware Installation of theBBU3900.

4.4 Scenario 1: Installing the BBU3900 in the 19-Inch CabinetIf the DBS3900 is installed indoors, it supports only the –48 V DC power input. In this case, theBBU3900 can be installed in the 19-inch cabinet. The parts to be installed are the BBU3900body, DCDU, SLPU lightning protection box (optional), and BBU3900 cables.

4.4.1 Installing the BBU3900 Body in the 19-Inch CabinetThe BBU3900 can be installed in any 19-inch cabinet with a space of 2 U.

4.4.2 Installing the DCDU in the 19-Inch cabinetThis describes how to install the DCDU in the 19-inch cabinet. The DCDU model is DCDU-03B.

4.4.3 Installing the SLPU in the 19-Inch Cabinet (Optional)When the BBU3900 is installed in the 19-inch cabinet, you can install an SLPU to providelightning protection for the trunk cables. The SLPU can be installed in the 19-inch cabinet.

4.4.4 Installing BBU3900 Cables in the 19-Inch Cabinet



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When the BBU3900 is installed in the 19-inch cabinet, the cables to be installed are the powercables, E1/T1/FE cables, CPRI cables, and alarm cables.

4.4.1 Installing the BBU3900 Body in the 19-Inch CabinetThe BBU3900 can be installed in any 19-inch cabinet with a space of 2 U.

PrerequisiteThe Phillips screwdriver is available.

Procedure

Step 1 Hold the BBU with both hands and align the mounting ears with the holes on the cabinet. Thenpush the BBU into the cabinet along the guide rails.

Step 2 Use the Phillips screwdriver and four panel screws to fix the BBU to the cabinet. See Figure4-4.

Figure 4-4 Installation in the 19-inch cabinet

----End

4.4.2 Installing the DCDU in the 19-Inch cabinetThis describes how to install the DCDU in the 19-inch cabinet. The DCDU model is DCDU-03B.



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Figure 4-5 shows the installation position of the DCDU in the cabinet.

Figure 4-5 Installation position of the DCDU in the cabinet

Procedure

Step 1 Hold the DCDU with both hands and place it in the position.

Step 2 Push it into the cabinet.

Step 3 Use the Phillips screwdriver and four screws to fix the DCDU in the cabinet by the mountingears on both sides.

----End

4.4.3 Installing the SLPU in the 19-Inch Cabinet (Optional)When the BBU3900 is installed in the 19-inch cabinet, you can install an SLPU to providelightning protection for the trunk cables. The SLPU can be installed in the 19-inch cabinet.



Figure 4-6 shows the installation position of the SLPU in the cabinet.



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Figure 4-6 Installation position of the SLPU in the cabinet

Procedure

Step 1 Hold the SLPU with both hands and place it in the position.


Step 3 Use the Phillips screwdriver and four screws to fix the SLPU in the cabinet by the mountingears on both sides.

----End

4.4.4 Installing BBU3900 Cables in the 19-Inch CabinetWhen the BBU3900 is installed in the 19-inch cabinet, the cables to be installed are the powercables, E1/T1/FE cables, CPRI cables, and alarm cables.

Connections of the BBU3900 Cables in the 19-Inch CabinetFigure 4-7 shows the connections of the BBU3900 cables in the 19-inch cabinet.


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Figure 4-7 Connections of the BBU3900 cables

Example of the BBU3900 Cable Layout in the 19-Inch Cabinet

Figure 4-8 shows the example of the BBU3900 cable layout in the 19-inch cabinet.

Figure 4-8 Example of the BBU3900 cable layout in the 19-inch cabinet

(1) CPRI port cable (2) Power cable

(3) E1 cable (4) Environment signal cable

(5) FE cable (6) Alarm cable

4.4.4.1 Installing Power Cables in the 19-Inch Cabinet



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This describes how to install power cables in the 19-inch cabinet. Power cables of the BBU3900are used to connect the PWR port on the panel of the BBU3900 and the 12 A DC output wireterminal in the DCDU of the 19-inch cabinet.

4.4.4.2 Installing E1/T1 Cables in the 19-Inch CabinetWhen the transmission mode between the BBU3900 and the BSC is E1/T1, E1/T1 cables mustbe installed and lightning protection must be implemented for the cables.

4.4.4.3 Installing FE Cables in the 19-Inch CabinetWhen the transmission mode between the BBU3900 and the BSC is FE, FE cables must beinstalled and lightning protection must be implemented for the cables.

4.4.4.4 Installing CPRI Cables in the 19-Inch CabinetWhen the BBU3900 is connected with the RRU/ODU through the CPRI port, the CPRI cablecan be an SFP cable or a fiber.

4.4.4.5 Installing Alarm Cables in the 19-Inch CabinetThe alarm cable carries the alarm signals from the external alarm devices to the BBU3900.

Installing Power Cables in the 19-Inch CabinetThis describes how to install power cables in the 19-inch cabinet. Power cables of the BBU3900are used to connect the PWR port on the panel of the BBU3900 and the 12 A DC output wireterminal in the DCDU of the 19-inch cabinet.

PrerequisiteThe Phillips screwdriver, wire nipper, multi-function pincers are available.

CAUTIONBefore installation, ensure that the 19-inch cabinet is powered off.

Contextl For the BBU3900 installed in a 19-inch cabinet, the DCDU-O3B is recommended.

l The DCDU-O3B supports –48 V DC input for DC power distribution. For the details aboutthe DCDU-O3B, refer to PDU.

Procedure

Step 1 Connect the 3V3 connector of the power cable to the PWR ports on the BBU3900 panel, andthen tighten the screws on the connectors. See Figure 4-9.


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Figure 4-9 Connecting the power cable to the PWR port

Step 2 Connect the two OT terminals of the power cable to the 12 A DC output wire terminal in theDCDU, and then tighten the screws.

12 A DC output wire terminals in the DCDU-03B: LOAD0–LOAD2.

----End

Installing E1/T1 Cables in the 19-Inch CabinetWhen the transmission mode between the BBU3900 and the BSC is E1/T1, E1/T1 cables mustbe installed and lightning protection must be implemented for the cables.

Prerequisitel The Phillips screwdriver is available.

Contextl For E1/T1 transmission, the UELP is used to provide lightning protection.

l The E1/T1 conversion cables are used to connect the CMPT and the UELP.

l The E1/T1 cables are used to connect the UELP and the BSC.

Procedure

Step 1 Connect the DB26 connector of the E1/T1 cable to the E1/T1 port on the CMPT, and the DB25connector to the INSIDE port on the UELP.

Step 2 For E1 cable layout outside the cabinet, refer to 4.1.3 General Requirements for BTS CableLayout.

Step 3 For leading the E1/T1 cable into the cabinet through the cable inlet on the right, refer to Figure4-8.

Step 4 Connect the E1/T1 cable to the OUTSIDE port on the UELP.

Step 5 Route the E1 cable along the cabling space on the right inside the cabinet, and then use cableties to fix it.



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Step 6 Attach labels to the E1/T1 cable.

Step 7 At the part near the signal cable hole, strip a section (20 mm to 30 mm [0.79 in. to 1.18 in.]) offthe E1/T1 cable to expose the shielding layer, as shown in Figure 4-10.

Figure 4-10 Stripping sheath of the E1/T1 cable

Step 8 Use sealing glue to seal the E1/T1 cable, as shown in Figure 4-11.

Figure 4-11 Sealing treatment

NOTE

After the installation of all cables, use sealing glue to seal them.

Step 9 Use cable ties to bind the conductive cloth and the shielding layer together to ground the shieldinglayer, as shown in Figure 4-12.


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Figure 4-12 Handling the E1/T1 shielding layer

1 Shielding layer 2 Cable tie 3 Conductive cloth

----End

Installing FE Cables in the 19-Inch Cabinet

When the transmission mode between the BBU3900 and the BSC is FE, FE cables must beinstalled and lightning protection must be implemented for the cables.


Contextl For FE transmission the UFLP is used to provide lightning protection.

l The FE conversion cables are used to connect the CMPT and the UFLP.

l The FE cables are used to connect the UFLP and the BSC.

NOTE

l You can also use fibers to support FE transmission.

l The FE1 port on the panel of the CMPT can house removable optical module for fiber connection.The other end of the fiber is connected to the optical port of the transmission device.

Procedure

Step 1 Connect one end the FE cable to the FE0 port on the CMPT, and the other end to the INSIDEport on the UFLP.

Step 2 For FE cable layout outside the cabinet, refer to 4.1.3 General Requirements for BTS CableLayout.

Step 3 After the FE cable is led into the cabinet, connect the RJ45 connector to the OUTSIDE port onthe UFLP.

Step 4 Route the FE cable along the cabling space in the cabinet, and then use cable ties to fix it.



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Step 5 Attach labels to the FE cable.

----End

PostrequisiteAfter the installation of all cables, use sealing glue to seal them. For the details, refer to 4.4.4.2Installing E1/T1 Cables in the 19-Inch Cabinet.

Installing CPRI Cables in the 19-Inch CabinetWhen the BBU3900 is connected with the RRU/ODU through the CPRI port, the CPRI cablecan be an SFP cable or a fiber.


Contextl When the BBU3900 and the RRU/ODU are not in the same location, or when the BBU3900

is installed outdoors, you must connect a fiber to the CPRI port.l When the BBU3900 and the RRU/ODU are in the same location, you can connect an SFP

cable to the CPRI port.l When the optical cable is used, you must connect a removable optical module to the CPRI

port.l Table 4-3 lists the connections of the CPRI cables.







NOTEWhen the optical cable is used, youmust install the removable opticalmodule.

SFP Cable

NOTE

For the routing and sealing treatment of the SFP cable, refer to 4.4.4.3 Installing FE Cables in the 19-Inch Cabinet. The following describes how to install fibers.


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CAUTIONl The bend radius of a fiber cannot exceed 20 times of the diameter of the fiber. During

installation, avoid bending the fiber or its tail to a very acute angle.l The end with the longer bare tail is connected to the BBU, and the end with the shorter one

is connected to the RRU/ODU.

CAUTIONDuring operation, ensure the ESD protection, for example, wearing an antistatic wrist strap orgloves to protect the boards, modules, and electronic components against static damage.

Procedure

Step 1 Attach color ring labels to the optical fibers.


Step 3 Remove the protective caps from the optical modules and the optical fibers.

Step 4 Insert the optical module into the SFP port on the BBU channel board.

Step 5 Insert the connector at one end of the optical fiber into the optical module, as shown in Figure4-13.

Figure 4-13 Installing optical fibers

CAUTIONPrevent the cabinet doors from catching the fibers.



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Step 6 Wind the fiber winding tube around the tail, and the use fiber ties to fix it, as shown in Figure4-14.

Figure 4-14 Installing the fiber winding tube

Step 7 Lead one end of the fiber out of the APM30 from the cable hole at the bottom right of the cabinet.

Step 8 Route the other end of the fiber close to the RRU/ODU.

Step 9 Insert the optical module of the CPRI port into the socket on the panel of the RRU/ODU, asshown in Figure 4-15.The silkscreen of the CPRI port on the RRU is CPRI_W, and the silkscreen of the CPRI porton the ODU is A.

Figure 4-15 Installing the optical module on the RRU/ODU

Step 10 Route the fibers along the cabling space in the cable cavity in the RRU/ODU.

Step 11 Insert the connector at one end of the optical fiber into the optical module on the panel of theRRU/ODU.

Step 12 Attach labels to the fibers.

----End


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Installing Alarm Cables in the 19-Inch CabinetThe alarm cable carries the alarm signals from the external alarm devices to the BBU3900.

Procedure

Step 1 Connect the RJ45 connector of the alarm cable to the EXT_ALM0 port or the EXT_ALM1port on the panel of the UPEU, as shown in Figure 4-16.

Figure 4-16 Connecting the alarm cable to the EXT_ALM0 port

Step 2 Add the terminal that the external alarm device requires to the other end of the alarm cable. Forthe description of the cores and pins of the alarm cable, refer to Alarm Cable of theBBU3900.

Step 3 Route the alarm cable along the cabling space on the right of the cabinet, and then use cable tiesto fix it.

Step 4 Connect the alarm cable to the alarm signal port on the external alarm device.

Step 5 Attach labels to the alarm cables.

----End

4.5 Scenario 2: Installing the BBU3900 in the AMP30In the outdoor installation, the DBS3900 supports the power input modes of 220 V AC, 110 VAC, and -48 V DC. In this cause, the BBU3900 can be installed in the APM30 AC cabinet orthe APM30 (–48 V) DC cabinet. The parts to be installed are the BBU3900 body, SLPU lightningprotection box, and BBU3900 cables.

Contextl When the BBU3900 is installed in the APM30 AC cabinet, it supports the input modes of

110 V dual-phase, 220 V single-phase, and 220 V three-phase AC.l When the BBU3900 installed in (–48 V) DC cabinet, it supports the –48 V DC input.

4.5.1 Installing the BBU3900 Body in the AMP30



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This describes how to install the BBU3900 body in the APM30.

4.5.2 Installing the APM30 in the SLPUThis describes how to install the SLPU in the APM30.

4.5.3 Installing the BBU3900 Cables in the APM30When the BBU3900 is installed in the APM30, the cables to be installed are the power cables,E1/T1/FE cables, CPRI cables, alarm cables, and environment signal cables.

4.5.1 Installing the BBU3900 Body in the AMP30This describes how to install the BBU3900 body in the APM30.


Installation PositionFigure 4-17 shows the installation position of the BBU3900 in the APM30. Figure 4-18 showsthe installation position in the APM30 (–48 V) DC cabinet.

Figure 4-17 Installation position of the BBU3900 in the APM30 AC cabinet


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Figure 4-18 Installation position of the BBU3900 in the APM30 (–48 V) DC cabinet

Procedure

Step 1 Install and tune the guide rails according to the actual situation.

Step 2 Hold the BBU3900 with both hands and align the mounting ears with the holes on the cabinet.Then push the BBU3900 into the cabinet along the guide rails.

Step 3 Use four panel screws M6x12 to fix the BBU3900 in the APM30.

----End

4.5.2 Installing the APM30 in the SLPUThis describes how to install the SLPU in the APM30.


Procedure

Step 1 Position the SLPU and tune the guide rails according to the actual situation.The recommended position for the SLPU is the space under the BBU3900 body.

Step 2 Hold the SLPU with both hands and place it in the position.


Step 4 Use the Phillips screwdriver and four screws to fix the SLPU in the cabinet by the mountingears on both sides.

----End



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4.5.3 Installing the BBU3900 Cables in the APM30When the BBU3900 is installed in the APM30, the cables to be installed are the power cables,E1/T1/FE cables, CPRI cables, alarm cables, and environment signal cables.

Connections of the BBU3900 Cables in the APM30 CabinetFigure 4-19 shows the connections of the BBU3900 cables in the APM30 cabinet.


Example of the BBU3900 Cable Layout in the APM30 CabinetFigure 4-20 shows the example of the BBU3900 cable layout in the APM30 cabinet.


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Figure 4-20 Example of the BBU3900 cable layout in the APM30 cabinet

(1) CPRI port cable (2) Power cable

(3) E1 cable (4) Environment signal cable

(5) FE cable (6) Alarm cable

4.5.3.1 Installing Power Cables in the APM30This describes how to install the BBU3900 power cables in the APM30. Power cables of theBBU3900 are used to connect the PWR port on the panel of the BBU3900 and the 12 A DCoutput wire terminal in the DC power distribution box of the APM30.

4.5.3.2 Installing E1/T1 Cables in the APM30When the transmission mode between the BBU3900 and the BSC is E1/T1, E1/T1 cables mustbe installed and lightning protection must be implemented for the cables.

4.5.3.3 Installing FE Cables in the APM30When the transmission mode between the BBU3900 and the BSC is FE, FE cables must beinstalled and lightning protection must be implemented for the cables.

4.5.3.4 Installing the CPRI Cables in the APM30When the BBU3900 is connected with the RRU/ODU through the CPRI port, the CPRI cablecan be an SFP cable or a fiber.

4.5.3.5 Installing Alarm Cables in the APM30The alarm cable carries the alarm signals from the external alarm devices to the BBU3900.

4.5.3.6 Installing Signaling Cables in the APM30 (–48 V) Power Supply Cabinet (Optional)The signal cable is connected to the MON1 port on the UPEU of the BBU3900 and the TX-TX+ and RX-RX+ ports on the APM30 (–48 V) power cabinet. It carries the environmentmonitoring signals to the BBU3900 from the APM30 (–48 V) power cabinet.



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Installing Power Cables in the APM30This describes how to install the BBU3900 power cables in the APM30. Power cables of theBBU3900 are used to connect the PWR port on the panel of the BBU3900 and the 12 A DCoutput wire terminal in the DC power distribution box of the APM30.

PrerequisiteThe Phillips screwdriver, wire nipper, multi-function pincers are available.

CAUTIONBefore installation, ensure that the APM30 is powered off.

Contextl The APM30 has two models: APM30 AC power cabinet and APM30 (–48 V) DC power

cabinet.l Different APM30 models have different DC power distribution boxes. For details, see

Power Distribution Box.

Procedure

Step 1 Connect the 3V3 connector of the power cable to the PWR ports on the BBU3900 panel, andthen tighten the screws on the connectors. See Figure 4-21.

Figure 4-21 Connecting the power cable to the PWR port

Step 2 In the case of the APM30 AC power cabinet, connect the two OT terminals of the power cableto the 12 A DC output wire terminal in the PDU, and then tighten the screws.

12 A DC input wire terminals in the PDU: LOAD2–LOAD3.

Step 3 In the case of the APM30 (–48 V) DC power cabinet, connect the two OT terminals of the powercable to the 12 A DC output wire terminal in the DCDU-03C, and then tighten the screws.


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12 A DC input wire terminals in the DCDU-03C: LOAD3–LOAD8.

----End

Installing E1/T1 Cables in the APM30When the transmission mode between the BBU3900 and the BSC is E1/T1, E1/T1 cables mustbe installed and lightning protection must be implemented for the cables.


Contextl For E1/T1 transmission the UELP is used to provide lightning protection.

l The E1/T1 conversion cables are used to connect the CMPT and the UELP.

l The E1/T1 cables are used to connect the UELP and the BSC.

NOTE

The UELP can be installed in the BBU3900 or in the SLPU.

Procedure

Step 1 Connect the DB26 connector of the E1/T1 cable to the E1/T1 port on the CMPT, and the DB25connector to the INSIDE port on the UELP.


Step 3 For leading the E1/T1 cable into the cabinet through the cable inlet on the right, refer to Figure4-8.

Step 4 Connect the E1/T1 cable to the OUTSIDE port on the UELP.

Step 5 Route the E1 cable along the cabling space on the right inside the APM30, and then use cableties to fix it.

Step 6 Attach labels to the E1/T1 cable.

Step 7 At the part near the signal cable hole, strip a section (20 mm to 30 mm [0.79 in. to 1.18 in.]) offthe E1 cable to expose the shielding layer.

Step 8 Route the E1 cable through the metal grounding clip on the right side of the cabinet and ensurethe contact between them to ground the E1/T1 cable. See Figure 4-22.



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Figure 4-22 Grounding the E1/T1 cable

----End


Installing FE Cables in the APM30When the transmission mode between the BBU3900 and the BSC is FE, FE cables must beinstalled and lightning protection must be implemented for the cables.


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Contextl For FE transmission the UFLP is used to provide lightning protection.

l The FE conversion cables are used to connect the CMPT and the UFLP.

l The FE cables are used to connect the UFLP and the BSC.

NOTE

l You can also use fibers to support FE transmission.

l The FE1 port on the panel of the CMPT can house removable optical module for fiber connection.The other end of the fiber is connected to the optical port of the transmission device.

Procedure

Step 1 Connect one end the FE cable to the FE0 port on the CMPT, and the other end to the INSIDEFE port on the UFLP.

Step 2 For FE cable layout outside the cabinet, refer to 4.1.3 General Requirements for BTS CableLayout.

Step 3 After the FE cable is led into the APM30, connect the RJ45 connector to the OUTSIDE port onthe UFLP.

Step 4 Route the FE cable along the cabling space in the APM30, and then use cable ties to fix it.

Step 5 Attach labels to the FE cable.

----End


Installing the CPRI Cables in the APM30When the BBU3900 is connected with the RRU/ODU through the CPRI port, the CPRI cablecan be an SFP cable or a fiber.


Contextl When the BBU3900 and the RRU/ODU are not in the same location, or when the BBU3900

is installed outdoors, you must connect a fiber to the CPRI port.l When the BBU3900 and the RRU/ODU are in the same location, you can connect an SFP

cable to the CPRI port.l When the optical cable is used, you must connect a removable optical module to the CPRI

port.



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l Table 4-4 lists the connections of the CPRI cables.







NOTEWhen the optical cable is used, youmust install the removable opticalmodule.

SFP Cable

NOTE

For the routing and sealing treatment of the SFP cable, refer to 4.4.4.3 Installing FE Cables in the 19-Inch Cabinet. The following describes how to install fibers.

CAUTIONl The bend radius of a fiber cannot excceed 20 times of the diameter of the fiber. During

installation, avoid bending the fiber or the tail to a very acute angle.

l The end with the longer bare tail is connected to the BBU, and the end with the shorter oneis connected to the RRU/ODU.

CAUTIONDuring operation, ensure the ESD protection, for example, wearing an antistatic wrist strap orgloves to protect the boards, modules, and electronic components against static damage.

Procedure

Step 1 Attach color ring labels to the optical fibers.


Step 3 Remove the protective caps from the optical modules and the optical fibers.

Step 4 Insert the optical module into the SFP port on the BBU channel board.

Step 5 Insert the connector at one end of the optical fiber into the optical module, as shown in Figure4-23.


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Figure 4-23 Installing optical fibers

CAUTIONPrevent the doors of the APM30 from catching the fibers.

Step 6 Wind the fiber winding tube around the tail, and the use fiber ties to fix it, as shown in Figure4-24.

Figure 4-24 Installing the fiber winding tube

Step 7 Lead one end of the fiber out of the APM30 from the cable hole at the bottom right of the cabinet.

Step 8 Route the other end of the fiber close to the RRU/ODU.

Step 9 Insert the optical module of the CPRI port into the socket on the panel of the RRU/ODU, asshown in Figure 4-25.The silkscreen of the CPRI port on the RRU is CPRI_W, and the silkscreen of the CPRI porton the ODU is A.



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Figure 4-25 Installing the optical module on the RRU/ODU

Step 10 Route the fibers along the cabling space in the cable cavity in the RRU/ODU.

Step 11 Insert the connector at one end of the optical fiber into the optical module on the panel of theRRU/ODU.

Step 12 Attach labels to the fibers.

----End


Installing Alarm Cables in the APM30The alarm cable carries the alarm signals from the external alarm devices to the BBU3900.

Procedure

Step 1 Connect the RJ45 connector of the alarm cable to the EXT_ALM0 port or the EXT_ALM1port on the panel of the UPEU, as shown in Figure 4-26.


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Figure 4-26 Connecting the alarm cable to the EXT_ALM0 port

Step 2 Add the terminal that the external alarm device requires to the other end of the alarm cable. Forthe description of the cores and pins of the alarm cable, refer to Alarm Cable of theBBU3900.

Step 3 Route the alarm cable along the cabling space on the right of the APM30, and then use cableties to fix it.

Step 4 Connect the alarm cable to the alarm signal port on the external alarm device.

Step 5 Attach labels to the alarm cables.

----End

Installing Signaling Cables in the APM30 (–48 V) Power Supply Cabinet(Optional)

The signal cable is connected to the MON1 port on the UPEU of the BBU3900 and the TX-TX+ and RX-RX+ ports on the APM30 (–48 V) power cabinet. It carries the environmentmonitoring signals to the BBU3900 from the APM30 (–48 V) power cabinet.

Procedure

Step 1 Connect the RJ45 connector of the signal cable to the MON0 port or the MON1 port on thepanel of the UPEU, as shown in Figure 4-27.

Figure 4-27 Connecting the signal cable to the MON0 port

Step 2 Remove RJ45 connector from the signal cable, and the connect X1.1, X1.2, X1.4, X1.5 to theports corresponding to the wire terminals according to the colors of the cores. See Table 4-5.



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Table 4-5 Cores and pins of the APM30 (–48 V) signal cable


Color Port on the APM30

X1.1 White/orange TX+

X1.2 Orange TX-

X1.4 Blue RX+

X1.5 White/blue RX-

Step 3 Connect the two wire terminals to the TX-TX+ port and the RX-RX+ port on the panel of theAPMI, as shown in Figure 4-28.

Figure 4-28 Connecting the environment signal cable to the panel of the APMI

Step 4 Route the signal cable along the cabling space on the right inside the APM30, and then use cableties to fix it.

----End

4.6 Scenario 3: Installing the BBU3900 on the IndoorInstallation Rack

If the DBS3900 is installed indoors, it supports only the –48 V DC power input. In this case, theBBU3900 can be installed on the indoor installation rack. The parts to be installed are theBBU3900 body, DCDU, SLPU lightning protection box (optional), and BBU3900 cables.

4.6.1 Installing the BBU3900 Body on the Indoor Installation RackThe BBU3900 can be installed on the indoor installation rack.

4.6.2 Installing the DCDU on the Indoor Installation RackThe DCDU can be installed on the indoor installation rack. The DCDU model is DCDU-03B.

4.6.3 Installing the SLPU on the Indoor Installation Rack (Optional)The SLPU can be installed on the indoor installation rack. The SLPU is an optional part of theBBU3900. It provides lightning protection for the trunk cables.

4.6.4 Installing the BBU3900 Cables on the Indoor Installation Rack


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When the BBU3900 is installed on the indoor installation rack, the cables to be installed are thepower cables, PGND cable, E1/T1/FE cables, CPRI fibers, alarm cables, and environment signalcables.

4.6.1 Installing the BBU3900 Body on the Indoor Installation RackThe BBU3900 can be installed on the indoor installation rack.


Procedure

Step 1 Hold the BBU with both hands and align the mounting ears with the holes on the cabinet.

Step 2 Use the Phillips screwdriver and four panel screws to fix the BBU to the subrack, as shown inFigure 4-29.

Figure 4-29 Installing the BBU3900 body on the indoor installation rack

----End

4.6.2 Installing the DCDU on the Indoor Installation RackThe DCDU can be installed on the indoor installation rack. The DCDU model is DCDU-03B.


Procedure

Step 1 Hold the DCDU with both hands and align the mounting ears with the holes on the indoorinstallatio rack.



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Step 2 Use the Phillips screwdriver and four panel screws to fix the DCDU to the subrack, as shownin Figure 4-30.

Figure 4-30 Installing the DCDU on the indoor installation rack

----End

4.6.3 Installing the SLPU on the Indoor Installation Rack (Optional)The SLPU can be installed on the indoor installation rack. The SLPU is an optional part of theBBU3900. It provides lightning protection for the trunk cables.


Procedure

Step 1 Hold the SLPU with both hands and align the mounting ears with the holes on the indoorinstallation rack.

Step 2 Use the Phillips screwdriver and four panel screws to fix the SLPU to the rack.

----End

4.6.4 Installing the BBU3900 Cables on the Indoor Installation RackWhen the BBU3900 is installed on the indoor installation rack, the cables to be installed are thepower cables, PGND cable, E1/T1/FE cables, CPRI fibers, alarm cables, and environment signalcables.

BBU3900 Cable Connections on the Indoor Installation Rack

Figure 4-31 shows the connections of the BBU3900 cables on the indoor installation rack.


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CAUTIONl When the BBU3900 is installed on the indoor installation rack, PGND cables must be

installed.l One end of the PGND cable is connected to the grounding screw on the BBU3900, and the

other end is connected to the grounding screw on the side of the indoor installation rack.

BBU3900 Cable Layout on the Indoor Installation RackTo route BBU3900 cables on the indoor installation rack, do as follows:l Route the signal cables led out from the BBU along the left column of the indoor installation

rack up to the cabling rack.l Route the power cables led out from the BBU along the right column of the indoor

installation rack up to the cabling rack.

Figure 4-32 shows an example of cable layout.



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Figure 4-32 BBU3900 cable layout on the indoor installation rack

(1) Signal cable (2) Power cable

Cable Connectionsl When the BBU3900 is installed on the indoor installation rack, the DCDU-03B is used.

For the cable connections between the power distribution box and the BBU3900, refer toTable 3-5.

l For the details about other cable connections, refer to 2.3 BBU3900 Cables.

4.7 Scenario 4: Installing the BBU3900 in the 19-Inch RackIf the DBS3900 is installed indoors, it supports only the –48 V DC power input. In this case, theBBU3900 can be installed in the 19-inch rack.The parts to be installed are the BBU3900 body,DCDU, SLPU lightning protection box (optional), and BBU3900 cables.

4.7.1 Installing the BBU3900 Body in the 19-Inch RackThe BBU3900 can be installed in the 19-inch rack.

4.7.2 Installing the DCDU in the 19-Inch RackThe DCDU can be installed in the 19-inch rack. The DCDU model is DCDU-03B.

4.7.3 Installing the SLPU in the 19-Inch Rack (Optional)The SLPU can be installed in the 19-inch rack.

4.7.4 Installing BBU3900 Cables in the 19-Inch RackWhen the BBU3900 is installed in the 19-inch rack, the cables to be installed are the powercables, PGND cable, E1/T1/FE cables, CPRI cables, alarm cables, and environment signalcables.

4.7.1 Installing the BBU3900 Body in the 19-Inch RackThe BBU3900 can be installed in the 19-inch rack.


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Procedure

Step 1 Hold the BBU with both hands and align the mounting ears with the holes on the cabinet.

Step 2 Use the Phillips screwdriver and four panel screws to fix the BBU to the subrack, as shown inFigure 4-33.

Figure 4-33 Installing the BBU3900 body (in the 19-inch rack)

----End

4.7.2 Installing the DCDU in the 19-Inch RackThe DCDU can be installed in the 19-inch rack. The DCDU model is DCDU-03B.


Procedure

Step 1 Hold the DCDU with both hands and align the mounting ears with the holes on the indoorinstallation rack.

Step 2 Use the Phillips screwdriver and four panel screws to fix the DCDU to the rack.

----End



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4.7.3 Installing the SLPU in the 19-Inch Rack (Optional)The SLPU can be installed in the 19-inch rack.


Procedure

Step 1 Hold the SLPU with both hands and align the mounting ears with the holes on the indoorinstallation rack.

Step 2 Use the Phillips screwdriver and four panel screws to fix the SLPU to the rack.

----End

4.7.4 Installing BBU3900 Cables in the 19-Inch RackWhen the BBU3900 is installed in the 19-inch rack, the cables to be installed are the powercables, PGND cable, E1/T1/FE cables, CPRI cables, alarm cables, and environment signalcables.

BBU3900 Cable Connections in the RackFigure 4-34 shows the connections of the BBU3900 cables in the rack.


CAUTIONl When the BBU3900 is installed in the 19-inch rack, PGND cables must be installed.

l One end of the PGND cable is connected to the grounding screw on the BBU3900, and theother end is connected to the grounding screw at the bottom of the 19-inch rack.


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BBU3900 Cable Layout in the RackTo route BBU3900 cables in the rack, do as follows:l Route the signal cables led out from the BBU along the left column of the indoor installation

rack down to the cabling rack.l Route the power cables led out from the BBU along the right column of the indoor

installation rack up to the cabling rack.

Figure 4-35 shows an example of cable layout.

Figure 4-35 BBU3900 cable layout in the rack

For the details about the cable connections, refer to 2.3 BBU3900 Cables.



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Cable Connectionsl When the BBU3900 is installed in the 19-inch rack, the DCDU-03B is used. For the cable

connections between the power distribution box and the BBU3900, refer to Table 3-5.l For the details about other cable connections, refer to 2.3 BBU3900 Cables.

4.8 Scenario 5: Installing the BBU3900 in a BTS3606AECabinet

The BBU3900 can be installed in the cabinet of the BTS3606AE.

4.8.1 Installing the BBU3900 in a BTS3606AE CabinetThis describes how to install the BBU3900 in a BTS3606AE cabinet.

4.8.2 Installing the BBU3900 Cables in the BTS3606AE CabinetWhen the BBU3900 is installed in a BTS3606AE cabinet, you must install power cables, SFPcables, and GPS clock cables.

4.8.1 Installing the BBU3900 in a BTS3606AE CabinetThis describes how to install the BBU3900 in a BTS3606AE cabinet.

Procedure

Step 1 Remove the filler panel in the BBU subrack.

Step 2 Insert the BBU3900 into a BBU subrack, and then screw the BBU3900, as shown in Figure4-36.


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Figure 4-36 Installing the BBU3900

(1) BBU3900 in BBU subrack 1 (2) BBU3900 in BBU subrack 0

NOTE

l A BTS3606AE can be configured with BBU subrack 0 and BBU subrack 1, which house twoBBU3900s.

l When only one BBU3900 is configured, install it in BBU subrack 0.

l The BBU3900 installed in the BTS3606AE cabinet supports only +24 V DC power input, which isdistributed by the DC power distribution unit of the ODU or BBU in the BTS3606AE cabinet.

----End

4.8.2 Installing the BBU3900 Cables in the BTS3606AE CabinetWhen the BBU3900 is installed in a BTS3606AE cabinet, you must install power cables, SFPcables, and GPS clock cables.

4.8.2.1 Installing the Power Cable of the BBU3900The BBU3900 installed in a BTS3606AE cabinet uses the +24 V DC power cable that is installedin the BTS3606AE before delivery.

4.8.2.2 Installing the SFP CablesThis describes how to connect the SFP cables.

4.8.2.3 Installing the GPS Clock CablesOn the site, you need to install two GPS clock cables, which are routed from the GPS lightningarrester inside the cabinet. One of the GPS clock cable is connected to the GPS clock port onthe CMPT in the BBU3606, and the other is connected to the external GPS feeder at the bottomof the cabinet.



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4.8.2.4 Principles for Routing CablesWhen the cables of the BBU3900 are routed, cables connected to boards on the left are routedin the left side and the cables connected to the boards on the right are routed in the right side.

Installing the Power Cable of the BBU3900

The BBU3900 installed in a BTS3606AE cabinet uses the +24 V DC power cable that is installedin the BTS3606AE before delivery.

Prerequisite

Table 4-6 Materials and tools

Material Power Cable of the TransmissionEquipment

Tool A cross screwdriver, scissors, and a wirestripper

Context

Figure 4-37 shows the power cable of the BBU3900.

Figure 4-37 Power cable of the BBU3900

Procedure

Step 1 Connect the two 3-pin D connectors at one end of the power cable to the PWR ports on theBBU3900 panel, and then fasten the screws on the connectors.

Step 2 Connect another 3-pin D connector at the other end of the power cable to BBU0 port on the DCpower distribution unit of the ODU or BBU.Figure 4-38 shows the connection of the power cable.


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Figure 4-38 Connection of the power cable

----End

Installing the SFP CablesThis describes how to connect the SFP cables.

Prerequisite

Table 4-7 Materials and Tools

Materials SFP cables (4 m [13.12 ft.])

Tool ESD-preventive gloves and ESD-preventive wrist strap



4-45

ContextFigure 4-39 shows the SFP cable.

Figure 4-39 SFP cable

NOTE

l Before delivery, one end of the SFP cables is connected to the SFP port (with the silk screen "A") onthe OMTR and the SFP cables are preset in the RFC.

l When the SFP cable is used to connect the HCPM/HECM in the BBU3606 with the OMTR in the RFC,you need not install the removable optical module, which is only required when you use optical fibersto connect the HCPM/HECM in the BBU3606 with a lower-level BTS.

l After all the cables are connected, you need to seal the cable inlets and outlets at the bottom of the BBCusing plaster.

When connecting SFP cables, adhere to the following requirements:l Connect the SFP cables routed from OMTR 1, OMTR 3, and OMTR 5 respectively to the

ports SFP0, SFP1, and SFP2 on HCPM/HECM 0 in the BBC.l Connect the SFP cables routed from OMTR 0, OMTR 2, and OMTR 4 respectively to the

ports SFP0, SFP1, and SFP2 on HCPM/HECM 1 in the BBC.Figure 4-40 shows the numbering of the HCPM/HECM.

Figure 4-40 Numbering of the HCPM/HECM

Procedure

Step 1 Route the other end of the SFP cables into the BBC through the cable inlet/outlet, as shown inFigure 4-40.

Step 2 Route the SFP cables along the cabling trough at the right side of the BBC, and then connectthem to the SFP ports on the HCPM/HECM.

Figure 4-41 shows the connections of the SFP cables.


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Figure 4-41 Installing the SFP cables (1)

Step 3 Seal the cable inlet/outlet at the bottom of the BBC using plaster.

----End

Installing the GPS Clock CablesOn the site, you need to install two GPS clock cables, which are routed from the GPS lightningarrester inside the cabinet. One of the GPS clock cable is connected to the GPS clock port onthe CMPT in the BBU3606, and the other is connected to the external GPS feeder at the bottomof the cabinet.



4-47

Prerequisite

Table 4-8 Materials and Tools

Materials GPS feeders, PVC insulation tapes, andwaterproof tapes

Tool Screwdriver and diagonal pliers

ContextThe GPS clock cables are shown as follows:

l Figure 4-42 shows the GPS clock cable connected to the CMPT panel.

Figure 4-42 GPS clock cable connected to the CMPT panel

(1) Main label (2) SMA connector

l Figure 4-43 shows the GPS clock cable interconnected with the external GPS feeder.

Figure 4-43 GPS clock cable interconnected with the external GPS feeder

(1) Main label (2) N-type connector

Procedure

Step 1 Insert the SMA connector of the GPS clock cable into the port of the GPS clock cable on theCMPT of the BBU3606.

Step 2 Remove the cover plate from the GPS clock cable outlet at the bottom of the BBC, as shown inFigure 4-44.


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Figure 4-44 Removing the cover plate from the GPS clock cable outlet at the bottom of the BBC

Step 3 Remove the nuts on the N-type connector. Route the N-type connector through the cover plate,and then fasten the connector using the removed nuts.

Step 4 Route the external GPS feeder into the cabinet, and then interconnect the GPS feeder with theN-type connector, as shown in Figure 4-45.

Figure 4-45 Installing the GPS clock cables

Step 5 Waterproof the N-type connectors at the bottom of the BBC. Do not use tape to wrap the screwholes of the connectors,as shown in Figure 4-46.



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Figure 4-46 Waterproofing N-type connectors

Step 6 Fix the cover plate at the bottom of the cabinet.

----End

Principles for Routing CablesWhen the cables of the BBU3900 are routed, cables connected to boards on the left are routedin the left side and the cables connected to the boards on the right are routed in the right side.

Figure 4-47 shows the routing of the BBU3900 cables.

Figure 4-47 Routing of the BBU3900 cables

4.9 Checking the Hardware Installation of the BBU3900After the hardware installation of the BBU3900 is complete, you must check the installation andpower on it to confirm the installation.

PostrequisiteYou must power on the BTS, install the BTS software, and perform the initial configurationafter finishing the check. For the subsequent operations, refer to the related manuals.


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4.9.1 BBU3900 Installation ChecklistAfter the BBU3900 is installed, check its installation and electrical performance.

4.9.2 Powering On the BBU3900After you perform an installation check for the BBU3900, perform a power-on check.

4.9.1 BBU3900 Installation ChecklistAfter the BBU3900 is installed, check its installation and electrical performance.

Perform an installation check for the BBU3900 by referring to Table 4-9.

Table 4-9 BBU3900 installation checklist

DIP Switch Item

1 All the screws that fix the BBU3900 are securely fastened.

2 Cable connectors are secure and intact.

3 Cables are intact or broken.

4 The cables are bundled neatly with proper force. The cable ties arearranged in the same direction and at the same interval.

5 Excess cable tails are cut and all the cable tails are flushed.

6 Clear and distinct labels are attached to both ends of a cable.

7 The boards installed in the BBU3900 are consistent with the boards listedin the packing list.

8 Unused ports are protected.

4.9.2 Powering On the BBU3900After you perform an installation check for the BBU3900, perform a power-on check.

Prerequisitel The BBU3900 is properly installed and passes the installation check.

l The external power input of the BBU3900 meets the requirements.– The BBU3900 supports two lines of –48 V DC/+24 V DC input

– In the DBS3900, the BBU3900 supports the input mode of –48 V DC.

– The BBU3900 installed in a BTS3606AE supports only +24 V DC input.

Procedure

Step 1 Set the external power switch to OFF.

Step 2 Ensure that all the boards in the BBU3900 are properly connected with the subrack.

Step 3 Set the external power switch to ON.



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Step 4 Observe the status of the RUN indicator on the UPEU panel, and then proceed with the next stepaccording to the indicator status.

If... Then...

l The RUN indicator is ON, You can infer that the UPEU starts to work.Proceed with Step 5.

l The RUN indicator is OFF, You can infer that the UPEU is faulty or thereis no external power input. To clear the fault,do as follows:l Ensure that the external power cable is

properly connected.l Remove the board and check whether the

pins are damaged. If the board pins aredamaged, replace the board. If the boardpins are intact, reinstall the board.

If the indicator is still OFF, contact HuaweiTechnical Support.

Step 5 Power on other boards of the BBU3900 and load the software. Observe the indicator status, andthen proceed with the next step according to the indicator status.

If... Then...

l The RUN indicator blinks at 4 Hz, and

l The ALM indicator is OFF

You can infer that the board is being loaded.

Other states You can infer that the board is faulty. Clearthe fault and proceed with Step 3.

Step 6 After the board software is loaded, the status of the board indicator changes. Proceed with thenext step according to the indicator status.

If... Then...

l The RUN indicator blinks at 0.5 Hz, and

l The ALM indicator is OFF

You can infer that the board functionsproperly.

Other states You can infer that the board is faulty. Clearthe fault and proceed with Step 3.

----End


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5 Configuring the BBU3900

About This Chapter

The BBU3900 contains mandatory boards (CMPT, HCPM/HECM, and UPEU), optional boards(UTRP and USCU), and other modules. Data configuration should be performed on mandatoryboards and optional boards. For other modules, data configuration is not required.

ContextFor the introduction to and configuration principle of the BBU3900, see BBU3900.

5.1 Configuring the CMPTThis describes how to configure the CMPT.

5.2 Configuring the UTRPThis describes how to configure the UTRP.

5.3 Configuring the HCPMThis describes how to configure the HCPM.

5.4 Configuring the HECMThis describes how to configure the HECM.

5.5 Configuring the UPEUThis describes how to configure the UPEU.

5.6 Configuring the USCUThis describes how to configure the USCU.

Airbridge BBU3900 CDMA Baseband UnitUser Guide 5 Configuring the BBU3900


5-1

5.1 Configuring the CMPTThis describes how to configure the CMPT.

Task Description

Objective To configure the CMPT of the BBU3900.

Scenario This task is mandatory for the initial configuration of the BBU3900.

Prerequisite

The CMPT is installed in the BBU3900 and is operational.

Precautions The BBU3900 supports the active/standby backup of the CMPT.

Data Preparation

Table 5-1 Information about the CMPT

Item Parameter Description

Board ID BRDID l A maximum of two CMPTs can be configured inactive/standby mode. They cannot work at the sametime.

l CMPT 0 is the active board, and CMPT 1 is thestandby board.

Procedure

Run the ADD CBTSCMPT command to add a CMPT.

----End

Example

[Example] Add the active CMPT in BTS 1.

ADD CBTSCMPT: BTSID=1, BRDID=0;

5.2 Configuring the UTRPThis describes how to configure the UTRP.

Task Description

Objective To configure the UTRP of the BBU3900.

5 Configuring the BBU3900Airbridge BBU3900 CDMA Baseband Unit

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Scenario This task is mandatory when the UTRP is installed in the BBU3900.

Prerequisite

A UTRP is installed in the BBU3900 and is operational.

Precautions l The UTRP cannot work with the UELP/UFLP. Do not configure both ofthem in the BBU3900.

l The UTRP supports only E1/T1 transmission mode.

Data Preparation

Table 5-2 Information about the UTRP


Board ID BRDID l A maximum of two UTRPs can be configured inactive/standby and load sharing modes.

l For two UTRPs configured in active/standby mode,UTRP 0 is always the active board.

ProcedureRun the ADD CBTSUTRP command to add a UTRP.

----End

Example[Example] Add No.1 active UTRP in BTS 1.

ADD CBTSUTRP: BTSID=1, BRDID=1;

5.3 Configuring the HCPMThis describes how to configure the HCPM.

Task DescriptionObjective To configure the HCPM of the BBU3900.

Scenario This task must be performed to enable the BTS to support CDMA2000 1Xservices.

Prerequisite

The HCPM is installed and is operational.

Precautions The HCPM can be configured only after the corresponding resource pool issuccessfully configured.



5-3

Data Preparation

Table 5-3 Information about the HCPM


HCPM ID BRDID Before configuring the HCPM ID, determine themapping between the resource pool and the HCPM, andthe resource pool ID.Resource pool

IDCPLID

Procedure

Step 1 Run the ADD CBTSCPL command to add a new resource pool to the BTS. (This step isoptional.)

Step 2 Run the ADD CBTSCPM command to add a HCPM.

Step 3 Run the SET CBTSCDMA1XCTRLPARA command to set the control parameters of theHCPM. (This setp is optional.) The values must comply with the RNP requirements.

----End

Example[Example] To add HCPM 1 of BTS 1 to resource pool 0, which is already configured, run thefollowing command:

ADD CBTSCPM: BTSID=1, BRDID=1, CPLID=0;

5.4 Configuring the HECMThis describes how to configure the HECM.

Task DescriptionObjective To configure the HECM of the BBU3900.

Scenario This task must be performed to enable the system to support CDMA20001xEV-DO services.

Prerequisite

The HECM is installed and is operational.

Precautions The HECM can be configured only after the corresponding resource pool issuccessfully configured.


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Data Preparation

Table 5-4 Information about the HECM


HECM ID BRDID Before configuring the HECM, determine the mappingbetween the resource pool and the HECM, and theresource pool ID.Resource pool

IDCPLID

Procedure

Step 1 Run the ADD CBTSCPL command to add a resouce pool to the new BTS. (This step is optional.)This step is performed to add a resource pool. If an existing resource pool is available, skip thisstep.

Step 2 Run the ADD CBTSECM command to add a HECM.

Step 3 Run the SET CBTSCDMADOCTRLPARA command to set the control parameters of theHECM. (This step is optional.) The values must comply with the RNP requirements.

----End

Example[Example] To add HECM 1 of BTS 1 to resource pool 1, which is already configured, run thefollowing command:

ADD CBTSECM: BTSID=1,BRDID=1,CPLID=1;

5.5 Configuring the UPEUThis describes how to configure the UPEU.

Task DescriptionObjective To configure the UPEU of the BBU3900.

Scenario This task is mandatory for the initial configuration of the BBU3900.

Prerequisite

The UPEU is installed and is operational.

Precautions

There are UPEUs of two models, which support power input of –48 V DC and+ 24 V DC respectively.



5-5

Data Preparation

Table 5-5 Information about the UPEU


Board ID BRDID A maximum of two UPEUs (UPEU 0 and UPEU 1) canbe configured.

Procedure

Run the ADD CBTSUPEU command to add a UPEU.

----End

Example

[Example] Add UPEU 0 in BTS 1.

ADD CBTSUPEU: BTSID=1, BRDID=0;

5.6 Configuring the USCUThis describes how to configure the USCU.

Task Description

Objective To configure the USCU of the BBU3900.

Scenario This task is mandatory when the USCU is installed in the BBU3900.

Prerequisite A USCU is installed in the BBU3900 and is operational.

Precautions l The USCU is optional.

l The USCU supports the GPS/GLONASS receiver.

Data Preparation

Table 5-6 Information abou the USCU


Board ID BRDID The board ID can be only 0 or 1, and only one USCUcan be added through one operation.

Number of slots SNUM The number of slots can be either 1 or 2, indicatingwhether the GPS satellite card or the GPS/GLONASSsatellite card is configured.


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Slot ID SN l If a GPS satellite card is configured, the slot ID canbe 1, 2, 5, or 6.

l If a GPS/GLONASS satellite card is configured,slots 1 and 2 are occupied when the slot ID is 2, andslots 5 and 6 are occupied when the slot ID is 6.

ProcedureRun the ADD CBTSUSCU command to add a USCU.

----End

Example[Example] Add USCU 0 in BTS 1. The USCU supports the GPS satellite card and is insertedinto slot 2.

/* A GPS satellite card is used, so SNUM is 1. The USCU is inserted in slot 2, so SN is 2.*/

ADD CBTSUSCU: BTSID=1,BRDID=0,SNUM=1,SN=2;



5-7

6 Maintaining the Hardware of the BBU3900

About This Chapter

After the site starts operation, you must perform routine maintenance for the BBU to ensure theoperation condition.

6.1 Items of Routine BBU3900 MaintenanceThe routine BBU3900 maintenance involves checking the fans, equipment exterior, equipmentclean, and indicators.

6.2 Power On and Off the BBU3900After powering on the BBU3900, check the status of the BBU indicators. As for powering offthe BBU3900, you can perform regular power-off or emergency power-off as needed.

6.3 Replacing the BBU3900 BodyThe BBU3900 processes the baseband signals of the entire BTS system and provides thetransmission interface for the BTS and the BSC. Replacing a BBU3900 may disrupt all theservices on the BTS.

6.4 Replacing the BBU3900 PartsFaulty BBU parts must be replaced as soon as possible. The replaceable parts are the BBU body,BBU boards, modules, and optical modules.

6.5 Replacing BBU3900 CablesThe BBU3900 cables that can be replaced on the site are the conversion cables between boardsand the external cables.

Airbridge BBU3900 CDMA Baseband UnitUser Guide 6 Maintaining the Hardware of the BBU3900


6-1

6.1 Items of Routine BBU3900 MaintenanceThe routine BBU3900 maintenance involves checking the fans, equipment exterior, equipmentclean, and indicators.

ContextTable 6-1 lists the equipment maintenance items.

Table 6-1 Equipment maintenance items

Item Period Description Reference Standard

Checking thefans

Every week orevery month(quarter)

Check the fans. Alarms related to the fansare not generated.

Checking theequipmentexterior

Every month(quarter)

Check whether theequipment exterior has anytrace of damage such asindent, crack, hole, trace ofcorrosion and checkwhether the labels areclear.

-

Checkingequipmentclean


Check whether theequipment is clean.

The exterior of theequipment is clean, andnot much dust isaccumulated inside thecabinet.

Checking theindicators


Check whether the status ofthe indicators of theequipment.

The indicators indicate noalarm.

6.2 Power On and Off the BBU3900After powering on the BBU3900, check the status of the BBU indicators. As for powering offthe BBU3900, you can perform regular power-off or emergency power-off as needed.

6.2.1 Powering On the BBU3900Set the power switch on the BBU3900 to ON, and then observe the operation status of theBBU3900 according to the indicators.

6.2.2 Powering Off the BBU3900You can perform regular power-off and emergency power-off.

6.2.1 Powering On the BBU3900Set the power switch on the BBU3900 to ON, and then observe the operation status of theBBU3900 according to the indicators.

6 Maintaining the Hardware of the BBU3900Airbridge BBU3900 CDMA Baseband Unit

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Brief Description of Power-On1. Set the power switch to ON to power on the BBU3900.2. The UPEU is started and then supplies power to boards of the BBU3900.3. The boards are powered on.4. Software and data is loaded.5. The boards function properly.

Power-On CheckFor the procedure of power-on check, refer to Powering On the BBU3900.

6.2.2 Powering Off the BBU3900You can perform regular power-off and emergency power-off.

Procedure

Step 1 As for powering off the BBU3900, you can perform regular power-off or emergent power-offas needed.

If... Then...

Special scenarios (for example, equipmentmigration and predictable regional powerfailure)

Perform regular power-off. Go to Step 2.

Emergencies such as electric spark, smog,and water penetration happen.

Perform emergency power-off. Go to Step3.

Step 2 Stop the power supply of the BBU3900, and then switch off the power supply device providedby the customer.

Step 3 Switch off the power supply device provided by the customer, and then stop the power supplyof the BBU3900 if time permits.

----End

6.3 Replacing the BBU3900 BodyThe BBU3900 processes the baseband signals of the entire BTS system and provides thetransmission interface for the BTS and the BSC. Replacing a BBU3900 may disrupt all theservices on the BTS.


Procedure

Step 1 On the LMT, run the ULD CBTSSW command to upload the data configuration file to the LMT.



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Step 2 Follow the instruction in Powering Off the BBU3900 to power off the BBU3900 and terminatethe external power supply.

Step 3 Mark the cables on the BBU3900 and then remove them and take insulation measures to protectthem.

NOTE

Remove the power cable, alarm cable, FE cable, E1 cable, CPRI cable, and PGND cable from the BBU3900.

Step 4 Use a Phillips screwdriver to loosen the four screws on the body.

Step 5 Remove the BBU3900 body through the slot.

Step 6 Place the new BBU3900 body into the slot of the faulty BBU3900 body, and the push it in.

Step 7 Tighten the four bolts on the BBU3900 body.

Step 8 Switch on the external power supply of the BBU3900, and then follow instruction in PoweringOn the BBU3900 to perform power-on.

Step 9 On the LMT, run the DLD CBTSSW command to download the data configuration file to thenew BBU3900.

Step 10 On the LMT, run the LST CBTSVER command to confirm the software version.

Step 11 Run the STR CBTS command the restart the BTS.

----End

6.4 Replacing the BBU3900 PartsFaulty BBU parts must be replaced as soon as possible. The replaceable parts are the BBU body,BBU boards, modules, and optical modules.

6.4.1 Replacing the CMPTThe CMPT is the main control transmission unit of the BBU3900. It provides externaltransmission ports, clock, and OM ports and enables equipment management. If only one CMPTis installed in the BBU3900, the replacement disrupts the BTS services.

6.4.2 Replacing the HCPM/HECMThe HCPM/HECM is the channel processing board of the BBU3900. It provides basebandprocessing for the BTS. This replacement disrupts the services on the HCPM/HECM.

6.4.3 Replacing the UPEUThe UPEU is the power supply module of the BBU3900. It supplies power to the boards of theBBU3900. If only one UPEU is installed in the BBU3900, the replacement disrupts the BTSservices.

6.4.4 Replacing the UTRPThe UTRP is the extended transmission board of the BBU3900. It is used for the datacommunication between the BBU3900 and the BSC. The replacement of the UTRP disrupts thetransmission services on this board.

6.4.5 Replacing the UELP/UFLPThe UELP and UFLP are the lightning protection units for the trunk cables of the BBU3900.They provide lightning protection respectively for the E1/T1 cables and FE cables. Thisreplacement disrupts the services on the board.


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6.4.6 Replacing the USCUThe USCU is the extended satellite card clock unit of the BBU3900. It provides the BITS, GPS,and RGPS clock signals. The replacement of the USCU does not affect the services.

6.4.7 Replacing the FANThe FAN is the fan module of the BBU3900. It dissipates the heat in the BBU3900. Replacingthe SFBU within a short period does not affect the BTS services.

6.4.8 Replacing the Optical ModuleThe removable optical module is installed in the CPRI port of the BBU3900. It can be used toinstall a fiber. Fiber connection is used in remote connection or cascading connection. Replacingthe removable optical module disrupts all services provided by the connected RRU/ODU.

6.4.1 Replacing the CMPTThe CMPT is the main control transmission unit of the BBU3900. It provides externaltransmission ports, clock, and OM ports and enables equipment management. If only one CMPTis installed in the BBU3900, the replacement disrupts the BTS services.

Prerequisitel Required tools: ESD wrist strap and ESD gloves, cross screwdriver, and antistatic box/bag

l For details on the replacement preparations, see Preparing for Board Replacement.

Context

The BBU3900 can be equipped with a maximum of two CMPTs, which work in active/standbymode.

CAUTIONThe impact of replacing the CMPT is as follows:

l If only one CMPT is installed in the BBU3900, the replacement disrupts the BTS services.

l If two CMPTs are installed in the BBU3900, the replacement does not disrupt the BTSservices.

NOTE

The following description is based on the BBU3900 with only one CMPT. If the BBU3900 has two CMPTs,you can replace the faulty board without blocking the carriers.

Procedure

Step 1 Mark the position of the faulty board.

Before replacing the SPSU, attach a replacement label on the panel of the CMPT to be replacedto avoid maloperations.

Step 2 Block the carriers.

1. Run the BLK RES command to block all the carriers of the BTS. Set the priority to Low.



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2. Run the DSP RES command to check whether the status of all the carriers of the BTS isBlocked. If all the carriers of the BTS are blocked, go to the next step.

Step 3 Remove the faulty board.1. Wear an ESD wrist strap and ESD gloves and insert the grounding plug into the antistatic

jack on the cabinet.2. If any cable is connected to the panel of the CMPT, label them and then remove them.3. Loosen the bolts on the panel of the CMPT, and then remove the board.4. Put the removed board into an antistatic packing box/bag.

Step 4 Install the new board.1. Take out the new CMPT. Ensure that it is intact and its hardware version is the same as the

removed one.2. Insert the new CMPT, and then tighten the screws on the front panel.3. If any cable was connected to the panel of the removed CMPT, restore the cable connections

according to cable labels.

Step 5 Load.l If the BTS auto-loading function is enabled, the system automatically loads the software of

the CMPT from the BAM after the CMPT is inserted into the subrack.l If the auto-loading function is disabled, run the DLD CBTSSW command to load the

software of the CMPT.

Step 6 Unblock the carriers.

Run the UBL RES command to unblock all the carriers of the BTS.

Step 7 Check that the new board functions properly.

Refer to Verifying the Replaced Boards.

NOTEBefore replacing the CMPT, check the status of the E1/T1 links. Run the DSP CBTSLNKSTAT commandto query the links. Check and ensure that the operational status of the activated links is normal.

----End

Postrequisite1. Record the software version, board name, slot number, and site name of the faulty board.2. Check whether there is visible physical damage on the board, for example, mechanical parts

or plug-ins are distorted, pins are bent or missing, or the board is burnt.3. Record the information about the fault location process, including the cause of the fault,

fault symptoms, alarm name, status of indicators on the board panel, and detailedprocedures for identifying and clearing the fault on site.

4. Place the faulty board in an antistatic bag. Then, place the onsite fault record and theantistatic bag in the board box, and store them properly.

6.4.2 Replacing the HCPM/HECMThe HCPM/HECM is the channel processing board of the BBU3900. It provides basebandprocessing for the BTS. This replacement disrupts the services on the HCPM/HECM.


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Context

CAUTIONThe impact of replacing the HCPM/HECM is as follows:

l If no cable is connected to the faulty board, the replacement disrupts only the services onthis board.

l If an RF module is connected to the faulty board, the replacement disrupts all carrier serviceson this RF module.

Procedure


Before replacing the SPSU, attach a replacement label on the panel of the board to be replacedto avoid maloperations.

Step 2 Block the faulty board.

1. Run the BLK CBTSCPM command to block the faulty board. Set the block type to Idleblock.

2. Run the DSP CBTSBRDSTAT command to check whether the status of all the carriers isBlocked. If the carriers are blocked, go to the next step.

Step 3 Remove the faulty board.

1. Wear an ESD wrist strap and ESD gloves and insert the grounding plug into the antistaticjack on the cabinet.

2. If any cable is connected to the panel of the board, label them and then remove them.

3. Loosen the bolts on the panel, and then remove the board.

4. Put the removed board into an antistatic packing box/bag.

Step 4 Install the new board.

1. Take out the new board. Ensure that it is intact and its hardware version is the same as theremoved one.

2. Insert the new board, and then tighten the screws on the front panel.

3. If any cable was connected to the panel of the removed board, restore the cable connectionsaccording to cable labels.

Step 5 Load.

l If the BTS auto-loading function is enabled, the system automatically loads the fieldprogrammable gate array (FPGA) software and then the CPU software for the HCPM/HECMfrom the BAM after the HCPM/HECM is inserted into the subrack.



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l If the auto-loading function is disabled, run the DLD CBTSSW command to load the FPGAsoftware and then the CPU software for the HCPM/HECM.

Step 6 Unblock the board.

Run the UBL CBTSCPM command to unblock the new HCPM/HECM.



----End

Postrequisite1. Record the software version, board name, slot number, and site name of the faulty board.

2. Check whether there is visible physical damage on the board, for example, mechanical partsor plug-ins are distorted, pins are bent or missing, or the board is burnt.

3. Record the information about the fault location process, including the cause of the fault,fault symptoms, alarm name, status of indicators on the board panel, and detailedprocedures for identifying and clearing the fault on site.


6.4.3 Replacing the UPEUThe UPEU is the power supply module of the BBU3900. It supplies power to the boards of theBBU3900. If only one UPEU is installed in the BBU3900, the replacement disrupts the BTSservices.



Context

The BBU3900 can be equipped with a maximum of two UPEUs, which work in active/standbymode. The configuration of two UPEUs is recommended because it is more reliable.

CAUTIONThe impact of replacing the UPEU is as follows:

l If only one UPEU is installed in the BBU3900, the replacement stops the power supply anddisrupts the BTS services.

l If two UPEUs are installed in the BBU3900, the replacement does not disrupt the BTSservices.


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NOTE

l The following description is based on the BBU3900 with two UPEUs.

l If only one UPEU is installed in the BBU3900, the replacement requires blocking all carriers of theBTS.

Procedure

Step 1 Remove the faulty UPEU.1. Wear an ESD wrist strap and ESD gloves and insert the grounding plug into the antistatic

jack on the cabinet.2. Set the switch on the panel of the UPEU to OFF.3. If any cable is connected to the panel of the UPEU, label them and then remove them.4. Loosen the two captive screws on the panel of the UPEU, and then remove the UPEU.5. Put the removed board into an antistatic packing box/bag.

Step 2 Install the new UPEU.1. Take out the new UPEU. Ensure that it is intact and its hardware version is the same as the

removed one.2. Insert the new UPEU, and then tighten the captive screws on the panel of the UPEU.3. If any cable was connected to the panel of the removed UPEU, restore the cable connections

according to cable labels.4. Set the switch on the panel of the UPEU to ON.

Step 3 Check that the UPEU functions properly.

When a UPEU runs properly, the indicator is green and blinks at 0.5 Hz.

----End





6.4.4 Replacing the UTRPThe UTRP is the extended transmission board of the BBU3900. It is used for the datacommunication between the BBU3900 and the BSC. The replacement of the UTRP disrupts thetransmission services on this board.





6-9

Context

CAUTIONThe replacement of the UTRP disrupts the transmission services on this board.

Procedure


Before replacing the SPSU, attach a replacement label on the panel of the UTRP to be replacedto avoid maloperations.

Step 2 Block the carriers.1. Run the BLK RES command to block all the carriers of the BTS. Set the priority to Low.2. Run the DSP RES command to check whether the status of all the carriers of the BTS is

Blocked. If all the carriers of the BTS are blocked, go to the next step.


jack on the cabinet.2. If any cable is connected to the panel of the UTRP, label them and then remove them.3. Loosen the bolts on the panel, and then remove the board.4. Put the removed board into an antistatic packing box/bag.

Step 4 Install the new board.1. Take out the new UTRP. Ensure that it is intact and its hardware version is the same as the

removed one.2. Insert the new UTRP, and then tighten the screws on the front panel.3. If any cable was connected to the panel of the removed UTRP, restore the cable connections

according to cable labels.

Step 5 Load.l If the BTS auto-loading function is enabled, the system automatically loads the CPU software

of the UTRP from the BAM after the UTRP is inserted into the subrack.l If the auto-loading function is disabled, run the DLD CBTSSW command to load the

software of the UTRP.





NOTEBefore replacing the UTRP, check the status of the E1/T1 links. Run the DSP CBTSLNKSTAT commandto query the links. Check and ensure that the operational status of the activated links is normal.

----End


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6.4.5 Replacing the UELP/UFLPThe UELP and UFLP are the lightning protection units for the trunk cables of the BBU3900.They provide lightning protection respectively for the E1/T1 cables and FE cables. Thisreplacement disrupts the services on the board.



Context

CAUTIONThis replacement of the UELP/UFLP disrupts all services on the transmission links provided bythis board.

Procedure



Step 2 Block the carriers.1. Run the BLK RES command to block all the carriers of the BTS. Set the priority to Low.2. Run the DSP RES command to check whether the status of all the carriers of the BTS is

Blocked. If all the carriers of the BTS are blocked, go to the next step.


jack on the cabinet.2. Label the cables on the panel and then remove them.3. Loosen the bolts on the panel, and then remove the board.4. Put the removed board into an antistatic packing box/bag.



6-11

Step 4 Install the new board.1. Take out the new board. Ensure that it is intact and its hardware version is the same as the

removed one.2. Ensure that the settings of DIP switches on the new board are the same as the settings of

the removed one.The UFLP does not have DIP switches.

3. Insert the new board, and then tighten the screws on the front panel.4. According to the labels, connect the removed cables to the ports on the panel of the new

board.





----End





6.4.6 Replacing the USCUThe USCU is the extended satellite card clock unit of the BBU3900. It provides the BITS, GPS,and RGPS clock signals. The replacement of the USCU does not affect the services.



ContextThis topic describes how to install the hot-pluggable boards. All the BSC boards are hot-pluggable.

Procedure




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jack on the cabinet.2. Label the cables on the panel and then remove them.3. Remove the faulty board. For details, refer to Removing the Hot-Swappable Boards.4. Put the removed board into an antistatic packing box/bag.

Step 3 Install the new board.1. Take out the new board. Ensure that it is intact and its hardware version is the same as the

removed one.2. Install the new board. For details, refer to Installing the Hot-Swappable Boards.3. According to the labels, connect the removed cables to the ports on the panel of the new

board.



----End





6.4.7 Replacing the FANThe FAN is the fan module of the BBU3900. It dissipates the heat in the BBU3900. Replacingthe SFBU within a short period does not affect the BTS services.



Context

The FAN is the heat dissipation entity of the BBU3900. The replacement of the FAN causes therise of temperature in the BBU3900. Replacing the SFBU within a short period does not affectthe BTS services.

Procedure

Step 1 Remove the faulty FAN.



6-13

1. Wear an ESD wrist strap and ESD gloves and insert the grounding plug into the antistaticjack on the cabinet.

2. Loosen the two captive screws on the panel of the FAN, and then remove the FAN.

3. Put the removed board into an antistatic packing box/bag.

Step 2 Install the new FAN.

1. Take out the new FAN. Ensure that it is intact and its hardware version is the same as theremoved one.

2. Insert the new FAN, and then tighten the captive screws on the panel of the FAN.

Step 3 Check that the FAN functions properly.

When a FAN runs properly, the indicator is green and blinks at 0.5 Hz.

----End





6.4.8 Replacing the Optical ModuleThe removable optical module is installed in the CPRI port of the BBU3900. It can be used toinstall a fiber. Fiber connection is used in remote connection or cascading connection. Replacingthe removable optical module disrupts all services provided by the connected RRU/ODU.



Context

The removable optical module is used to connect a remote or cascading RRU/ODU. Whenequipped with a removable optical module, the HCPM/HECM can be connected to the RRU/ODU through a fiber.

Replacing the removable optical module disrupts all services provided by the connected RRU/ODU.

Procedure

Step 1 Mark the position of the faulty optical module.


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Before replacing the board, attach a replacement label near the faulty optical module to avoidmaloperations.


1. Run the BLK RES command to block all the carriers of the RRU/ODU connected throughthe optical fiber. Set the priority to Low.

2. Run the DSP RES command to check whether the status of all the carriers is Blocked. Ifall the carriers of the BTS are blocked, go to the next step.

Step 3 Remove the removable optical module.

1. Remove the fiber connected to the optical module.

2. Cap the removed fiber and mark it.

3. Remove the optical module.

Step 4 Install the removable optical module.

1. Take out the new module and ensure that the new module is intact and the model is thesame as the replaced one.

2. Insert the new optical module into the port on the panel of the board.

3. Connect the fiber to the new optical module according to the replacement label.


Run the UBL RES command to unblock all the carriers of the ODU connected through the port.

Step 6 Ensure that the new optical module is functional.

When the optical module is operational, the status of the indicators on the port is as follows:

l RX: blinking

l TX: blinking

----End





6.5 Replacing BBU3900 CablesThe BBU3900 cables that can be replaced on the site are the conversion cables between boardsand the external cables.



6-15

Prerequisitel Determine the type, model, and number of faulty cables and prepare the new cables.

l Ensure that the new trunk cables are intact. Do not use a cable with any damage.

l Record the installation positions and correspondence of the faulty trunk cables.

l If more than one cable needs to be replaced, add temporary labels to them. The temporarylabels help you identify the new cables. Ensure that the contents of the temporary labelsare the same as the contents of the labels on the faulty cables.

l Required tools: ESD wrist strap and ESD gloves, cross screwdriver, and antistatic box/bag

6.5.1 Replacing Power Cable of the BBU3900The power cable is connected to the PWR port on the panel of the BBU3900 to lead externalpower supply into the BBU3900. Before replacing a power cable, power off the BBU3900.

6.5.2 Replacing the E1/T1 Cable of the BBU3900The E1/T1 cable is the physical carrier between the BBU3900 and the BSC. When any E1/T1cable is replaced, all the services carried on the cable are disrupted.

6.5.3 Replacing the BBU3900 E1/T1 Lightning Protection Conversion CableThe E1/T1 lightning protection conversion cable connects the CMPT/UTRP in the BBU3900and the E1/T1 lightning protection board. It is the physical carrier between them. Replacing anE1/T1 cable disrupts all transmission services on the BTS.

6.5.4 Replacing the FE Cable of the BBU3900The FE cable is the physical carrier between the BBU3900 and the BSC. When any FE cable isreplaced, all the services carried on the cable are disrupted.

6.5.5 Replacing the FE Lightning Protection Conversion Cable of the BBU3900The FE lightning protection conversion cable connects the CMPT in the BBU3900 and the FElightning protection board. It is the physical carrier between them. Replacing an FE cable disruptsall transmission services on the BTS.

6.5.6 Replacing the BBU3900 CPRI CableThe CPRI cable of the BBU3900 can be an SPF cable or a fiber. When any CPRI cable is replaced,all the services carried on the cable are disrupted.

6.5.7 Replacing the Alarm Cable of the BBU3900The BBU3900 alarm cable connects the UPEU of the BBU3900 and the external alarm devicefor the monitoring of the external environment. The replacement of the alarm cable disrupts theexternal monitoring function and has no impact on the BTS services.

6.5.1 Replacing Power Cable of the BBU3900The power cable is connected to the PWR port on the panel of the BBU3900 to lead externalpower supply into the BBU3900. Before replacing a power cable, power off the BBU3900.

PrerequisiteRequired tools: ESD wrist strap and ESD gloves, cross screwdriver, and antistatic box/bag


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Context

CAUTIONReplacing the power cable of the BBU3900 disrupts all BTS services.

Procedure

Step 1 Cut a power cable with the same length as the original one.

Step 2 Set the BBU power switch to OFF.

Step 3 Use the Phillips screwdriver to loosen the screws on the 3V3 power connector, and then removethe connector from the PWR port on the BBU panel.

Step 4 Connect the 3V3 power connector of the power cable to the PWR port on the BBU3900 panel,and then fasten the screws on the connector.

Step 5 Route the new power cable along the original route to the external power supply.

Step 6 Strip the protection tube and shielding layer at the other end of the power cable and add an OTterminal to it.

Step 7 Remove the faulty power cable, and then install the new power cable.

Step 8 Set the power switch to ON to power on the BBU.

----End

PostrequisiteDiscard the faulty trunk cables properly and clean the site.

6.5.2 Replacing the E1/T1 Cable of the BBU3900The E1/T1 cable is the physical carrier between the BBU3900 and the BSC. When any E1/T1cable is replaced, all the services carried on the cable are disrupted.

Prerequisite

Required tools: ESD wrist strap and ESD gloves, cross screwdriver, and antistatic box/bag

Context

CAUTIONWhen any E1/T1 cable is replaced, all the services carried on the cable are disrupted.



6-17

Procedure

Step 1 Mark the position of the faulty E1/T1 cable.

Before replacing the E1/T1 cable, attach a replacement label near the faulty E1/T1 cable to avoidmaloperations.


1. Run the BLK RES command to block all the carriers connected through the E1/T1 cable.Set the priority to Low.


Step 3 Remove the E1/T1 cable.

1. Remove the E1/T1 cable from the panel.

2. Remove the E1/T1 cable from the outdoor transmission interface.

3. Coil up the removed E1/T1 cable using a cable tray, and then put it into a plastic bag.

Step 4 Install the E1/T1 cable.

1. Take out the new E1/T1 cable and ensure that the new E1/T1 cable is intact and the modelis the same as the replaced one.

2. Connect the new E1/T1 cable to the original position on the BBU3900.

3. Route the new E1/T1 cable along the original cabling route to the outdoor transmissioninterface.

4. Connect the new E1/T1 cable to the transmission interface.


Run the UBL RES command to unblock all the carriers connected through the E1/T1 cable.

Step 6 Ensure that the new E1/T1 cable functions properly.

Run the DSP CBTSLNKSTAT command to query the links. Check and ensure that theoperational status of the used E1/T1 links is normal.

----End


6.5.3 Replacing the BBU3900 E1/T1 Lightning ProtectionConversion Cable

The E1/T1 lightning protection conversion cable connects the CMPT/UTRP in the BBU3900and the E1/T1 lightning protection board. It is the physical carrier between them. Replacing anE1/T1 cable disrupts all transmission services on the BTS.

Prerequisite



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Context

CAUTIONReplacing an E1/T1 lightning protection conversion cable disrupts all transmission services onthe BTS.

Procedure

Step 1 Mark the position of the faulty E1/T1 cable.



1. Run the BLK RES command to block all the carriers connected through the E1/T1 cable.Set the priority to Low.


Step 3 Remove the E1/T1 cable.

1. Remove the E1/T1 cable from the transmission board.

2. Remove the E1/T1 cable from the E1/T1 lighting protection board.

3. Coil up the removed E1/T1 cable using a cable tray, and then put it into a plastic bag.

Step 4 Install the E1/T1 cable.

1. Take out the new E1/T1 cable and ensure that the new E1/T1 cable is intact and the modelis the same as the replaced one.

2. Connect the new E1/T1 cable to the original positions.


Run the UBL RES command to unblock all the carriers connected through the E1/T1 cable.

Step 6 Ensure that the new E1/T1 cable functions properly.

Run the DSP CBTSLNKSTAT command to query the links. Check and ensure that theoperational status of the used E1/T1 links is normal.

----End


6.5.4 Replacing the FE Cable of the BBU3900The FE cable is the physical carrier between the BBU3900 and the BSC. When any FE cable isreplaced, all the services carried on the cable are disrupted.



6-19


Context

CAUTIONWhen any FE cable is replaced, all the services carried on the cable are disrupted.

Procedure

Step 1 Mark the position of the faulty FE cable.


Step 2 Block the carriers.1. Run the BLK RES command to block all the carriers connected through the FE cable. Set

the priority to Low.2. Run the DSP RES command to check whether the status of all the carriers is Blocked. If

all the carriers of the BTS are blocked, go to the next step.

Step 3 Remove the FE cable.1. Remove the FE cable from the panel of the BBU3900.2. Remove the FE cable from the outdoor transmission interface.3. Coil up the removed FE cable using a cable tray, and then put it into a plastic bag.

Step 4 Install the FE cable.1. Take out the new FE cable and ensure that the new FE cable is intact and the model is the

same as the replaced one.2. Connect the new FE cable to the original position on the BBU3900.3. Route the new FE cable along the original cabling route to the outdoor transmission

interface.4. Connect the new FE cable to the transmission interface.


Run the UBL RES command to unblock all the carriers connected through the FE cable.

Step 6 Ensure that the new FE cable functions properly.

Run the DSP CBTSFEPORTINFO command to query the links. Check and ensure that theoperational status of the used FE links is normal.

----End



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6.5.5 Replacing the FE Lightning Protection Conversion Cable ofthe BBU3900

The FE lightning protection conversion cable connects the CMPT in the BBU3900 and the FElightning protection board. It is the physical carrier between them. Replacing an FE cable disruptsall transmission services on the BTS.


Context

CAUTIONReplacing an FE cable disrupts all transmission services on the BTS.

Procedure

Step 1 Mark the position of the faulty FE cable.


Step 2 Block the carriers.1. Run the BLK RES command to block all the carriers connected through the FE cable. Set

the priority to Low.2. Run the DSP RES command to check whether the status of all the carriers is Blocked. If


Step 3 Remove the FE cable.1. Remove the FE cable from the CMPT.2. Remove the FE cable from the FE lighting protection board.3. Coil up the removed FE cable using a cable tray, and then put it into a plastic bag.

Step 4 Install the FE cable.1. Take out the new FE cable and ensure that the new FE cable is intact and the model is the

same as the replaced one.2. Connect the new FE cable to the original positions.


Run the UBL RES command to unblock all the carriers connected through the FE cable.

Step 6 Ensure that the new FE cable functions properly.

Run the DSP CBTSFEPORTINFO command to query the links. Check and ensure that theoperational status of the used FE links is normal.

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6.5.6 Replacing the BBU3900 CPRI CableThe CPRI cable of the BBU3900 can be an SPF cable or a fiber. When any CPRI cable is replaced,all the services carried on the cable are disrupted.

Prerequisite


Context

CAUTIONWhen any CPRI cable is replaced, all the services carried on the cable are disrupted.

The CPRI cable of the BBU3900 can be an SPF cable or a fiber.l Fiber: To the CPRI port (an SFP port) on the panel of the HCPM/HECM. First install the

removable optical module, and then the fiber.l SFP cable: To the CPRI port (an SFP port) on the HCPM/HECM. Directly connect the SFP

cable to the CPRI port.

Procedure

Step 1 Mark the position of the faulty CPRI cable.

Before replacing the CPRI cable, attach a replacement label near the faulty cable to avoidmaloperations.

Step 2 Block the carriers.1. Run the BLK RES command to block all the carriers of the ODU connected through this

cable. Set the priority to Low.2. Run the DSP RES command to check whether the status of all the carriers is Blocked. If


Step 3 Remove the CPRI cable.1. For the optical cable, remove it from the optical module, and then cap it.2. For the SFP cable, remove the cable from the port.3. Coil up the removed cable using a cable tray, and then put it into a plastic bag.

Step 4 Install the CPRI cable.1. Take out the new cable and ensure that the new cable is intact and the model is the same

as the replaced one.2. Connect the new cable to the original positions, and ensure that the cable route remains the

same as the original one.


User Guide


Issue 03 (2008-11-30)


Run the UBL RES command to unblock all the carriers of the ODU connected through the CPRIcable.

Step 6 Ensure that the new CPRI cable functions properly.

When the CPRI cable is operational, the status of the indicators on the port is as follows:

l RX: blinking

l TX: blinking

----End


6.5.7 Replacing the Alarm Cable of the BBU3900The BBU3900 alarm cable connects the UPEU of the BBU3900 and the external alarm devicefor the monitoring of the external environment. The replacement of the alarm cable disrupts theexternal monitoring function and has no impact on the BTS services.

Prerequisite


Context

Both ends of the alarm cable are RJ45 connectors. One of the ends can be added with an OTterminal.

Procedure

Step 1 Mark the position of the faulty alarm cable.

Before replacing the alarm cable, attach a replacement label near the faulty alarm cable to avoidmaloperations.

Step 2 Remove the alarm cable.

1. Remove the alarm cable from the panel of the UPEU.

2. Disconnect the alarm cable from the external alarm device.

3. Coil up the removed alarm cable using a cable tray, and then put it into a plastic bag.

Step 3 Installing the alarm cable.

1. Take out the new alarm cable and ensure that the new alarm cable is intact and the modelis the same as the replaced one.

2. Connect the new alarm cable to the original positions.

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User Guide


Issue 03 (2008-11-30)

bbu3900 user guide (v400r006_03)

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