bbu3900 hardware description (v100_03)

BBU3900

V100

Hardware Description

Issue 03

Date 2010-01-20

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Contents

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

1 Changes in BBU3900 Hardware Description........................................................................1-1

2 BBU3900 Equipment..................................................................................................................2-12.1 Structure of the BBU3900...............................................................................................................................2-22.2 Boards and Module of the BBU3900..............................................................................................................2-2

2.2.1 Board Configuration of the BBU3900...................................................................................................2-32.2.2 WMPT....................................................................................................................................................2-82.2.3 GTMU..................................................................................................................................................2-122.2.4 WBBP...................................................................................................................................................2-172.2.5 FAN......................................................................................................................................................2-192.2.6 UPEU...................................................................................................................................................2-212.2.7 UEIU....................................................................................................................................................2-232.2.8 UTRP....................................................................................................................................................2-242.2.9 USCU...................................................................................................................................................2-292.2.10 UBRI..................................................................................................................................................2-322.2.11 Optical-to-Electrical Conversion Module..........................................................................................2-34

3 BBU3900 Cables..........................................................................................................................3-13.1 List of BBU3900 Cables.................................................................................................................................3-33.2 PGND Cable....................................................................................................................................................3-53.3 BBU Power Cable...........................................................................................................................................3-63.4 E1/T1 Cable.....................................................................................................................................................3-73.5 E1/T1 Surge Protection Transfer Cable........................................................................................................3-103.6 FE/GE Cable.................................................................................................................................................3-123.7 FE/GE Surge Protection Transfer Cable.......................................................................................................3-133.8 Cable Between Two FE Electrical Ports.......................................................................................................3-143.9 Cable Between Two FE Optical Ports...........................................................................................................3-143.10 FE/GE Optical Cable...................................................................................................................................3-153.11 CPRI Optical Cable.....................................................................................................................................3-163.12 Monitoring Signal Cable Between the APMI and the BBU.......................................................................3-173.13 Monitoring Signal Cable Between the HEUA and the BBU......................................................................3-183.14 Monitoring Signal Cable Between the CMUA and the BBU.....................................................................3-193.15 EMUA Monitoring Signal Cable................................................................................................................3-20

BBU3900Hardware Description Contents

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3.16 Monitoring Signal Cable for the PSU (DC/DC).........................................................................................3-213.17 In-Position Signal Cable for the PSU (DC/DC)..........................................................................................3-213.18 BBU Alarm Cable.......................................................................................................................................3-223.19 GPS Clock Signal Cable.............................................................................................................................3-23

4 Auxiliary Devices of the BBU3900..........................................................................................4-14.1 EMUA.............................................................................................................................................................4-24.2 DCDU-03........................................................................................................................................................4-24.3 SLPU...............................................................................................................................................................4-4

4.3.1 Structure of SLPU..................................................................................................................................4-44.3.2 Board Configuration of the SLPU..........................................................................................................4-54.3.3 UELP......................................................................................................................................................4-64.3.4 UFLP......................................................................................................................................................4-74.3.5 USLP2....................................................................................................................................................4-8

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Figures

Figure 2-1 BBU3900............................................................................................................................................2-2Figure 2-2 BBU3900 slots....................................................................................................................................2-3Figure 2-3 Typical configuration of the BBU3900 GSM....................................................................................2-4Figure 2-4 Typical configuration of the BBU3900 GU.......................................................................................2-6Figure 2-5 Typical configuration of the BBU3900 UMTS..................................................................................2-8Figure 2-6 Panel of the WMPT............................................................................................................................2-8Figure 2-7 LEDs besides the three ports on the WMPT......................................................................................2-9Figure 2-8 DIP switches on the WMPT.............................................................................................................2-11Figure 2-9 GTMU panel.....................................................................................................................................2-12Figure 2-10 GTMUb panel.................................................................................................................................2-13Figure 2-11 Panel of the WBBPa.......................................................................................................................2-17Figure 2-12 Panel of the WBBPb.......................................................................................................................2-17Figure 2-13 Panel of the FAN............................................................................................................................2-20Figure 2-14 Panel of the UPEUA.......................................................................................................................2-21Figure 2-15 Panel of the UPEUB.......................................................................................................................2-21Figure 2-16 Slots in the BBU.............................................................................................................................2-22Figure 2-17 Panel of the UEIU...........................................................................................................................2-23Figure 2-18 Panel of the UTRP2 supporting two optical ports..........................................................................2-24Figure 2-19 panel of the UTRP3 and UTRP4 supporting eight E1s/T1s...........................................................2-25Figure 2-20 Panel of the UTRP6 supporting one STM-1 .................................................................................2-25Figure 2-21 Panel of the UTRP supporting four electrical ports........................................................................2-25Figure 2-22 DIP switch on the UTRP3 or UTRP4.............................................................................................2-28Figure 2-23 Panels of the USCU (0.5 U)...........................................................................................................2-30Figure 2-24 Panels of the USCU (1 U)..............................................................................................................2-30Figure 2-25 Panel of the UBRI...........................................................................................................................2-32Figure 2-26 Optical-to-Electrical conversion module........................................................................................2-34Figure 3-1 PGND cable........................................................................................................................................3-6Figure 3-2 BBU power cable - 1..........................................................................................................................3-6Figure 3-3 BBU power cable - 2..........................................................................................................................3-7Figure 3-4 E1/T1 cable.........................................................................................................................................3-8Figure 3-5 E1/T1 surge protection transfer cable (A)........................................................................................3-10Figure 3-6 E1/T1 surge protection transfer cable (B)........................................................................................3-10Figure 3-7 FE/GE cable......................................................................................................................................3-12

BBU3900Hardware Description Figures


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Figure 3-8 FE/GE surge protection transfer cable..............................................................................................3-13Figure 3-9 Cable between two FE electrical ports.............................................................................................3-14Figure 3-10 Cable between two FE optical ports...............................................................................................3-15Figure 3-11 FE/GE optical cable (FC and LC connectors)................................................................................3-15Figure 3-12 FE/GE optical cable (SC and LC connectors)................................................................................3-15Figure 3-13 FE/GE optical cable (LC and LC connectors)................................................................................3-15Figure 3-14 CPRI optical cable..........................................................................................................................3-16Figure 3-15 Monitoring signal cable between the APMI and the BBU.............................................................3-17Figure 3-16 Monitoring signal cable between the HEUA and the BBU............................................................3-18Figure 3-17 Monitoring signal cable between the CMUA and the BBU...........................................................3-19Figure 3-18 EMUA monitoring signal cable......................................................................................................3-20Figure 3-19 Monitoring signal cable for the PSU (DC/DC)..............................................................................3-21Figure 3-20 In-position signal cable for the PSU (DC/DC)...............................................................................3-21Figure 3-21 BBU alarm cable............................................................................................................................3-22Figure 3-22 GPS clock signal cable...................................................................................................................3-24Figure 4-1 DCDU-03............................................................................................................................................4-2Figure 4-2 Ports on the panel of the DCDU-03....................................................................................................4-3Figure 4-3 Structure of SLPU.............................................................................................................................. 4-5Figure 4-4 Slots of the SLPU...............................................................................................................................4-5Figure 4-5 Panel of the UELP .............................................................................................................................4-6Figure 4-6 DIP switch on the UELP ................................................................................................................... 4-7Figure 4-7 Panel of the UFLP.............................................................................................................................. 4-8Figure 4-8 Panel of the USLP2............................................................................................................................ 4-8Figure 4-9 DIP switches on the USLP2............................................................................................................... 4-9

FiguresBBU3900


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Tables

Table 2-1 Board configuration principles of the BBU3900 GSM........................................................................2-4Table 2-2 Board configuration principles of the BBU3900 GU..........................................................................2-5Table 2-3 Board configuration principles of the BBU3900 UMTS.....................................................................2-6Table 2-4 LEDs on the WMPT panel...................................................................................................................2-9Table 2-5 LED and its status..............................................................................................................................2-10Table 2-6 Ports on the WMPT panel..................................................................................................................2-10Table 2-7 Settings of SW1..................................................................................................................................2-11Table 2-8 Settings of SW2..................................................................................................................................2-12Table 2-9 LEDs on the GTMU...........................................................................................................................2-13Table 2-10 Ports on the GTMU..........................................................................................................................2-14Table 2-11 Details of the DIP Switch S1...........................................................................................................2-15Table 2-12 Details of the DIP Switch S2...........................................................................................................2-16Table 2-13 Details of the DIP Switch S4...........................................................................................................2-16Table 2-14 Details of the DIP Switch S5...........................................................................................................2-17Table 2-15 Specifications of the WBBP.............................................................................................................2-18Table 2-16 LEDs on the WBBP and their status................................................................................................2-18Table 2-17 Ports on the WBBP..........................................................................................................................2-19Table 2-18 LED on the FAN and its status........................................................................................................2-20Table 2-19 LEDs on the UPEU and its status....................................................................................................2-22Table 2-20 Description on the ports on the panel of the UPEU.........................................................................2-22Table 2-21 Ports on the panel of the UEIU........................................................................................................2-24Table 2-22 Specifications of the UTRP..............................................................................................................2-24Table 2-23 LEDs on the panel of the UTRP......................................................................................................2-26Table 2-24 LEDs on the Ethernet ports of the UTRP2 and UTRP9...................................................................2-27Table 2-25 Ports of the UTRP2 supporting two optical ports............................................................................2-27Table 2-26 Ports on the panel of the UTRP3 and UTRP4 supporting eight E1s/T1s........................................2-27Table 2-27 Port of the UTRP6 supporting one STM-1......................................................................................2-27Table 2-28 Ports of the UTRP9 supporting four electrical ports........................................................................2-28Table 2-29 DIP switch SW1 on the UTRP.........................................................................................................2-28Table 2-30 DIP switch SW2 on the UTRP.........................................................................................................2-29Table 2-31 DIP switch SW3 on the UTRP.........................................................................................................2-29Table 2-32 LEDs on the USCU..........................................................................................................................2-30Table 2-33 LEDs on the TOD port.....................................................................................................................2-31

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Table 2-34 Ports on the USCU...........................................................................................................................2-31Table 2-35 LEDs on the panel of the UBRI.......................................................................................................2-32Table 2-36 CPRI link status LED.......................................................................................................................2-33Table 2-37 Ports on the panel of the UBRI........................................................................................................2-34Table 3-1 List of BBU3900 Cables......................................................................................................................3-3Table 3-2 Pin assignment for wires of the -48 V power cable.............................................................................3-7Table 3-3 Pin assignment for wires of the +24 V power cable............................................................................ 3-7Table 3-4 Connector of the 75-ohm E1 coaxial cable..........................................................................................3-8Table 3-5 Pin assignment for the wires of the 75-ohm E1 coaxial cable.............................................................3-8Table 3-6 Pin assignment for the wires of the 120-ohm E1 twisted pair cable....................................................3-9Table 3-7 Pin assignment for the wires of the E1/T1 surge protection transfer cable (A).................................3-11Table 3-8 Pin assignment for the wires of the E1/T1 surge protection transfer cable (B).................................3-11Table 3-9 Pin assignment for the wires of the FE/GE cable..............................................................................3-12Table 3-10 Pin assignment for the wires of the FE/GE surge protection transfer cable....................................3-13Table 3-11 Pin assignment for the fiber tails of the CPRI optical cable between the BBU and RRU...............3-16Table 3-12 Pin assignment for the fiber tails of the CPRI optical cable between RRUs...................................3-17Table 3-13 Pin assignment for the wires of the monitoring signal cable between the APMI and the BBU......3-18Table 3-14 Pin assignment for the wires of the monitoring signal cable between the HEUA and the BBU.....3-18Table 3-15 Pin assignment for the wires of the monitoring signal cable between the CMUA and the BBU....3-19Table 3-16 Pin assignment for the wires of the EMUA monitoring signal cable..............................................3-20Table 3-17 Pin assignment of the in-position signal cable for the PSU (DC/DC).............................................3-21Table 3-18 Wire sequence of the BBU alarm cable...........................................................................................3-22Table 4-1 DC power distribution functions of the DCDU-03..............................................................................4-3Table 4-2 Ports on the panel of the DCDU-03.....................................................................................................4-4Table 4-3 Board configuration of the SLPU........................................................................................................ 4-5Table 4-4 Ports on the panel of the UELP............................................................................................................4-6Table 4-5 DIP switch on the UELP .....................................................................................................................4-7Table 4-6 Ports on the panel of the UFLP............................................................................................................4-8Table 4-7 Ports on the panels of the USLP2........................................................................................................ 4-9Table 4-8 DIP switches on the USLP2.................................................................................................................4-9

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About This Document

PurposeThis document describes the BBU3900 hardware, such as boards, module, ports, cables, andconnectors, and the functions of the hardware.

Related VersionsThe following table lists the product versions related to this document.

Product Name Version

BBU3900 V100R001

V100R002

Intended AudienceThe intended audiences of this document are:

l Install engineers

l Field engineers

l System engineers

Organization1 Changes in BBU3900 Hardware Description

This provides the changes in BBU3900 Hardware Description.

2 BBU3900 Equipment

This describes the BBU3900 equipment in terms of the appearance, boards and their panels,module, LEDs, ports, and engineering specifications.

3 BBU3900 Cables

BBU3900Hardware Description About This Document


1

This describes the cables of the BBU3900 in terms of their appearance, pin assignment, andinstallation positions.

4 Auxiliary Devices of the BBU3900

This describes the auxiliary devices of the BBU3900. The devices consist of the EMUA andSLPU.

ConventionsSymbol Conventions

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

Symbol Description

Indicates a hazard with a high level of risk, which if notavoided,will result in death or serious injury.

Indicates a hazard with a medium or low level of risk, whichif not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation, which if notavoided,could result in equipment damage, data loss,performance degradation, or unexpected results.

Indicates a tip that may help you solve a problem or savetime.

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

General Conventions

The general conventions that may be found in this document are defined as follows.

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are inboldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New Examples of information displayed on the screen are inCourier New.

Command Conventions

The command conventions that may be found in this document are defined as follows.

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Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

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

{ x | y | ... } Optional items are grouped in braces and separated byvertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated byvertical bars. One item is selected or no item is selected.

{ x | y | ... }* Optional items are grouped in braces and separated byvertical bars. A minimum of one item or a maximum of allitems can be selected.

[ x | y | ... ]* Optional items are grouped in brackets and separated byvertical bars. Several items or no item can be selected.

GUI Conventions

The GUI conventions that may be found in this document are defined as follows.


Boldface Buttons, menus, parameters, tabs, window, and dialog titlesare in boldface. For example, click OK.

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

Keyboard Operations

The keyboard operations that may be found in this document are defined as follows.

Format Description

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

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A meansthe two keys should be pressed in turn.

Mouse Operations

The mouse operations that may be found in this document are defined as follows.

BBU3900Hardware Description Organization


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Action Description

Click Select and release the primary mouse button without movingthe pointer.

Double-click Press the primary mouse button twice continuously andquickly without moving the pointer.

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

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1 Changes in BBU3900 Hardware Description

This provides the changes in BBU3900 Hardware Description.

03 (2010-01-20)This is the third commercial release.

Compared with issue 02 (2009-12-28), the changed parts in this release are as follows:

4.3.2 Board Configuration of the SLPU is modified.

02 (2009-12-28)This is the second commercial release.

Compared with issue 01 (2009-11-15), the changed parts in this release are as follows:

4.2 DCDU-03 is added.

3.1 List of BBU3900 Cables is modified.

01 (2009-11-15)This is the first commercial release.

BBU3900Hardware Description 1 Changes in BBU3900 Hardware Description


1-1

2 BBU3900 Equipment

About This Chapter

This describes the BBU3900 equipment in terms of the appearance, boards and their panels,module, LEDs, ports, and engineering specifications.

The BBU3900 has the following functions:

l Provides ports for communication between the base station and the BSC/RNC

l Provides CPRI ports for the communication with the RF modules

l Provides USB ports, which facilitates automatic base station upgrade by allowing a USBdisk to be used for software installation and data configuration

l Provides an OM channel between the base station and the LMT or the M2000

l Processes uplink and downlink data

l Manages the entire dual-mode system in terms of OM and signaling processing

l Provides the system clock

2.1 Structure of the BBU3900The BBU3900, which features a case structure, is 19 inches wide and 2 U high.

2.2 Boards and Module of the BBU3900This describes the boards and module of the BBU3900 in terms of their configuration principles,functions, ports, LEDs, and DIP switches.

BBU3900Hardware Description 2 BBU3900 Equipment


2-1

2.1 Structure of the BBU3900The BBU3900, which features a case structure, is 19 inches wide and 2 U high.

The dimensions of the BBU3900 are 442 mm (width) x 310 mm (depth) x 86 mm (height).Figure 2-1 shows the BBU3900.

Figure 2-1 BBU3900

2.2 Boards and Module of the BBU3900This describes the boards and module of the BBU3900 in terms of their configuration principles,functions, ports, LEDs, and DIP switches.

2.2.1 Board Configuration of the BBU3900This describes the board configuration principles of the BBU3900 GSM, BBU3900 GU, andBBU3900 UMTS.

2.2.2 WMPTThis describes the WCDMA Main Processes and Transmission unit (WMPT). It is the BBU3900main control and transmission board that processes the signals and manages the resources forother boards.

2.2.3 GTMUThe GSM Transmission & Timing & Management Unit for BBU (GTMU) is the basictransmission and control function entity of the BBU. It provides the reference clock, maintenanceport, and external alarm collection port, monitors the power supply, and controls and managesthe entire base station.

2.2.4 WBBPThis describes the WCDMA Baseband Process Unit (WBBP) board of the BBU3900. TheWBBP processes baseband signals.

2.2.5 FAN

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The FAN is the fan unit of the BBU3900. The FAN controls the fan speed, detects the temperatureof the fan board, and dissipates the heat in the BBU.

2.2.6 UPEUThis describes the Universal Power and Environment Interface Unit (UPEU) board. It is amandatory board of the BBU3900 that converts -48 V or +24 V DC to +12 V DC.

2.2.7 UEIUThis describes the Universal Environment Interface Unit (UEIU) of the BBU3900. The UEIUtransmits monitoring and alarm signals from the external devices to the main control andtransmission unit.

2.2.8 UTRPThis describes the Universal Transmission Processing unit (UTRP) board. As the transmissionextension board of the BBU3900, the UTRP provides eight E1s/T1s, one unchannelized STM-1/OC-3 port, four electrical ports, or two optical ports.

2.2.9 USCUThis describes the Universal Satellite card and Clock Unit (USCU).

2.2.10 UBRIThe Universal Baseband Radio Interface Board (UBRI) provides extended CPRI optical orelectrical ports to implement convergence, distribution, and multi-mode transmission on theCPRI.

2.2.11 Optical-to-Electrical Conversion ModuleThe optical-to-electrical conversion module is optional, which converts the SFP optical port intothe RJ-45 port.

2.2.1 Board Configuration of the BBU3900This describes the board configuration principles of the BBU3900 GSM, BBU3900 GU, andBBU3900 UMTS.

BBU3900 Slots

The slots of the BBU3900 GSM, BBU3900 GU, and BBU3900 UMTS are the same, as shownin Figure 2-2.

Figure 2-2 BBU3900 slots

BBU3900 GSM

Table 2-1 describes the board configuration principles of the BBU3900 GSM.



2-3

Table 2-1 Board configuration principles of the BBU3900 GSM

Board Name Optional/Mandatory

MaximumNumber

Slot ConfigurationLimitations

GTMU Mandatory 1 slot 5 and slot 6 Only configuredin slot 5 and slot6

FAN Mandatory 1 FAN Only configuredin the FAN slot

UPEU Mandatory 2 PWR1 or PWR2 Preferentiallyconfigured atthe PWR2 slotin the case of asingle UPEU

USCU Optional 1 slot 0 or slot 1 Preferentiallyconfigured inslot 1Configured inslot 1 in the caseof 1 U dual-satellite-card (inthis case, slot 0is also occupied)

UEIU Optional 1 PWR1 -

Figure 2-3 shows the typical configuration of the BBU3900 GSM.

Figure 2-3 Typical configuration of the BBU3900 GSM

BBU3900 GUTable 2-2 describes the board configuration principles of the BBU3900 GU.




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Table 2-2 Board configuration principles of the BBU3900 GU


MaximumConfiguredNumber


WMPT Mandatory 1 slot 7 Only configuredin slot 7

GTMU Mandatory 1 slot 5 and slot 6 Only configuredin slot 5 and slot6

WBBP Mandatory 4 slot 0 to slot 3 The WBBP isinstalled in slot3 by default.l If extension

CPRI portsare required,the board isinstalled inslot 2.

l If extensionCPRI portsare notrequired, thepriority of theinstallationposition ofthe board isfrom slot 0 toslot 1, andthen to slot 2.


UPEU Mandatory 2 PWR1 or PWR2 Preferentiallyconfigured atthe PWR2 slotin the case of asingle UPEU





2-5




UTRP Optional 2 slot 0, slot 1 andslot 4

Preferentiallyconfigured inslot 4, then slot0, and then slot 1

UBRI Optional 1 slot 2 -

NOTE

l UTRP2 and UTRP9 are supported in SRAN 2.1 and SRAN 3.0 and later versions.

l UBRI is supported in SRAN3.0 and later versions.

Figure 2-4 shows the typical configuration of the BBU3900 GU.

Figure 2-4 Typical configuration of the BBU3900 GU

BBU3900 UMTSTable 2-3 describes the board configuration principles of the BBU3900 UMTS.

Table 2-3 Board configuration principles of the BBU3900 UMTS




WMPT Mandatory 2 slot 6 or slot 7 Preferentiallyconfigured inslot 7 in the caseof a singleWMPT




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WBBP Mandatory 4 slot 0 to slot 3 The WBBP isinstalled in slot3 by default.l If extension

CPRI portsare required,the board isinstalled inslot 2.

l If extensionCPRI portsare notrequired, thepriority of theinstallationposition ofthe board isfrom slot 0 toslot 1, andthen to slot 2.


UPEU Mandatory 2 PWR1 or PWR2 Preferentiallyconfigured inthe PWR2 slotin the case of asingle UPEU


UTRP Optional 4 slot 0, slot 1, slot4 and slot 5

Preferentiallyconfigured inslot 4, then slot5, then slot 0,and then slot 1




2-7

Figure 2-5 shows the typical configuration of the BBU3900 UMTS.

Figure 2-5 Typical configuration of the BBU3900 UMTS

2.2.2 WMPTThis describes the WCDMA Main Processes and Transmission unit (WMPT). It is the BBU3900main control and transmission board that processes the signals and manages the resources forother boards.

Panel

Figure 2-6 shows the WMPT panel.

Figure 2-6 Panel of the WMPT

Functions

The WMPT has the following functions:

l Provides Operation and Maintenance (OM) functions such as configuration management,equipment management, performance monitoring, signaling processing, and active/standby switchover and providing OM channels connected to the OMC (LMT or M2000)

l Provides the reference clock

l Processes signaling and managing resources for other boards in the BBU3900

l Provides USB ports, one of which facilitates automatic base station upgraded when a USBdisk is inserted during software installation and data configuration

l Provides four E1s/T1s which support ATM and IP protocols

l Provides one FE electrical port and one FE optical port which support the IP protocol

LED

Table 2-4 describes the LEDs on the WMPT panel.




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Table 2-4 LEDs on the WMPT panel

Label Color Status Meaning

RUN Green ON The power input isavailable, but theboard is faulty.

OFF The power supply isunavailable.

1s ON and 1s OFF The board in normalconfiguration isrunning properly.

0.125s ON and0.125s OFF

The software is beingloaded to the board,or the board is not inuse.

ALM Red OFF No alarm isgenerated.

ON The board has alarmson hardware.

ACT Green ON The board is in activemode.

OFF The board is instandby mode.

In addition to the previous three LEDs, the WMPT has another six LEDs indicating theconnection status of the FE optical port, FE electrical port, and the commissioning Ethernet port.The six LEDs have no silk screen and are on both sides of each of the three ports. Figure 2-7shows the LEDs beside the three ports.

Figure 2-7 LEDs besides the three ports on the WMPT

Table 2-5 describes the LED and its status.



2-9

Table 2-5 LED and its status

LED Color Status Meaning

LEDs beside the FE1optical port

Green (LINK) ON The connections arefunctional.

OFF The connections arefaulty.

Green (ACK) Blinking Data transmission isongoing.

OFF No data transmissionis ongoing.

LEDs beside the FE0electrical port

Green (LINK) ON The connections arefunctional.


Yellow (ACK) Blinking Data transmission isongoing.


ETH Green (LINK) ON The connections arefunctional.


Yellow (ACK) Blinking Data transmission isongoing.


Port

Table 2-6 describes the ports on the WMPT panel.

Table 2-6 Ports on the WMPT panel

Label Connector Type Description

E1/T1 DB26 connector E1

FE0 RJ45 connector FE electrical port

FE1 SFP connector FE optical port

GPS SMA connector GPS antenna




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Label Connector Type Description

ETH RJ45 connector Commissioning Ethernetport

USB USB connector USB loading port

TST USB connector USB testing port

RST - Resetting the BBU

DIP Switch

The WMPT has two DIP switches: SW1 for setting the E1/T1 working mode and SW2 for settingthe protection grounding for the E1/T1 cables receiving 4-way signals. Figure 2-8 shows theDIP switches on the WMPT.

Figure 2-8 DIP switches on the WMPT

Table 2-7 and Table 2-8 describe the settings of SW1 and SW2.

Table 2-7 Settings of SW1

DIPSwitch

DIP Status Description

1 2 3 4

SW1 ON ON OFF OFF T1 Mode

OFF OFF ON ON The E1impedance isset to 120ohms.



2-11

DIPSwitch


1 2 3 4

ON ON ON ON The E1impedance isset to 75ohms.

Other settings of the DIP bits Disabled

Table 2-8 Settings of SW2

DIPSwitch


1 2 3 4

SW2 OFF OFF OFF OFF BalancedMode

ON ON ON ON UnbalancedMode


CAUTIONAll the DIP bits of SW2 are set to OFF by default. When four E1 links are faulty, you shouldset all the DIP bits of SW2 to ON so that the faults are rectified.

2.2.3 GTMUThe GSM Transmission & Timing & Management Unit for BBU (GTMU) is the basictransmission and control function entity of the BBU. It provides the reference clock, maintenanceport, and external alarm collection port, monitors the power supply, and controls and managesthe entire base station.

PanelThe GTMU is classified into two types: GTMU and GTMUb. Figure 2-9 and Figure 2-10 showthe panels of the GTMU and GTMUb.

Figure 2-9 GTMU panel




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Figure 2-10 GTMUb panel

NOTEThe GTMU hereinafter mentioned in this document is the first type.

Functions

The GTMU has the following functions:

l The GTMU controls and manages the base station.

l The GTMU supports fault management system, configuration management system,performance management system, and security management system.

l The GTMU monitors the fans and power modules.

l The GTMU provides and manages the clock source of the base station in centralized mode.

l The GTMU provides the clock output for test.

l The GTMU provides the FE port for maintenance on the OM system.

l The GTMU supports transmission through four E1s and two FEs.

l The GTMU provides CPRI ports for communication between the BBU and the RFUs.

l The GTMUb supports interconnected BBUs.

l Four IDX2 ports on the backplane of the GTMUb can achieve the function of basebandresource pool backup.

LEDs

Table 2-9 describes the LEDs on the GTMU.

Table 2-9 LEDs on the GTMU

LED Color Status Description

RUN Green ON The board is faulty.

OFF There is no power supply, or theboard is faulty.

ON for 1s and OFFfor 1s

The board is running properly.



2-13



The board is being tested.

ON for 0.125s andOFF for 0.125s

Software is being loaded to theboard.

ALM Red ON An alarm is generated,indicating a running fault.

OFF The board is running properly.

ACT Green ON The board is in the active state.

OFF The board is in the standby state.

LIU0 to LIU3 Green ON The link is in the idle state.


An E1/T1 remote alarm isgenerated.

OFF The link is functional.

CPRI0 toCPRI5

Green ON The CPRI link is functional.

Red ON The optical module fails toreceive signals.

ETH Green (LINKLED on the left)

ON The connection is set upsuccessfully.

OFF No connection is set up.

Orange (ActivityLED on the right)

Blinking Data is being transmitted.

OFF No data is being transmitted.

M_S(GTMUb)

- - This is the LED of the reservedport.

EXT(GTMUb)

- - This is the LED of the reservedport.

Ports

Table 2-10 describes the ports on the GTMU.

Table 2-10 Ports on the GTMU

Label Connector Description

CPRI0 to CPRI5 SFP connector Data transmission port interconnected to the RFU.It supports the input and output of optical andelectrical transmission signals.




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Label Connector Description

EXT (GTMUb) SFP connector Group combined port. It supports the input andoutput of optical and electrical transmissionsignals.

ETH RJ-45 connector Local maintenance and debugging port

FE0 RJ-45 connector Connected to the routers in the equipment roomthrough FE cables to transmit networkinformation

FE1 DLC connector Connected to the routers in the equipment roomthrough optical cables to transmit networkinformation

USB USB connector Used for automatic software upgrade through theUSB disk

TST USB connector Provides a reference clock for the tester

E1/T1 DB26 femaleconnector

Used for four E1/T1 inputs and outputs betweenthe GTMU and the UELP or between BSCs

The RST button on the panel of the GTMU is used for resetting the board.

DIP Switches

On the GTMU, there are five DIP switches, each of which has four bits. DIP switches S1 andS2 need to be set jointly. The functions of the five DIP switches are as follows:

l S1 is used to select the E1 resistance. Table 2-11 provides details on the DIP switch.

l S2 is used to select the grounding mode of E1/T1 cables. Table 2-12 provides details onthe DIP switch.

l S3 is reserved.

l S4 is used to select the E1 bypass. Table 2-13 provides details on the DIP switch.

l S5 is used for timeslot settings when the E1 bypass is selected. Table 2-14 provides detailson the DIP switch.

Table 2-11 Details of the DIP Switch S1

DIPSwitch

Bit Status Description

1 2 3 4

S1 ON ON OFF OFF The E1 resistance is set to75 ohm.

OFF ON OFF OFF The E1 resistance is set to120 ohm.



2-15

DIPSwitch


1 2 3 4

ON OFF OFF OFF The T1 resistance is set to100 ohm.

Others Unavailable

NOTE

Bits 3 and 4 of S1 should be kept the out-of-factory state, without any manual setting on site. The out-of-factory state should be OFF. If the bits are ON, set them to OFF.


DIPSwitch


1 2 3 4

S2 OFF OFF OFF OFF By default, all the DIPbits of S2 are set to OFFin all the modes.

ON ON ON ON When the four E1 RXlinks in 75 ohm haveerrors, all the bits of S2must be set to ON torectify the faults on theE1 links.

Others Unavailable


DIPSwitch


1 2 3 4

S4 ON ON ON ON Supporting E1 bypass

OFF OFF OFF OFF Not supporting E1bypass

Others Unavailable




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DIPSwitch


1 2 3 4

S5 ON ON ON ON Not supporting E1bypass

OFF ON ON OFF Supporting E1 bypassof level-1 cascadedbase stations

ON OFF ON OFF Supporting E1 bypassof level-2 cascadedbase stations

OFF OFF ON OFF Supporting E1 bypassof level-3 cascadedbase stations

ON ON OFF OFF Supporting E1 bypassof level-4 cascadedbase stations

OFF ON OFF OFF Supporting E1 bypassof level-5 cascadedbase stations

NOTE

The E1 bypass function is not supported in this version. All the bits of S4 should be set to OFF, and all thebits of S5 should be set to ON.

2.2.4 WBBPThis describes the WCDMA Baseband Process Unit (WBBP) board of the BBU3900. TheWBBP processes baseband signals.

PanelThe WBBP has two types of panels, as shown in Figure 2-11 and Figure 2-12.

Figure 2-11 Panel of the WBBPa

Figure 2-12 Panel of the WBBPb



2-17

Function

The WBBP has the following functions:

l Provides the CPRI interface for communication between the BBU and the RRU or RFU,and supporting the CPRI interface in 1+1 backup mode

l Processes uplink and downlink baseband signals

Table 2-15 describes the specifications of the WBBP.

Table 2-15 Specifications of the WBBP

Board Number of Cells UL CE Number DL CE Number

WBBPa 3 128 256

WBBPb1 3 64 64

WBBPb2 3 128 128

WBBPb3 6 256 256

WBBPb4 6 384 384

LED

Table 2-16 describes the LEDs on the WBBP and their status.

Table 2-16 LEDs on the WBBP and their status

Label Color Status Description

RUN Green ON The board has power input, yetthe board is faulty.

OFF The power supply or the boardis faulty.

1s ON, 1s OFF The board is running properly.

0.125s ON, 0.125s OFF Software is being loaded to theboard.

ACT Green ON The board is running properly.

OFF The WBBP is not in use.

ALM Red OFF The board is running properly.

ON The board has alarms onhardware.




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CPRI0/CPRI1/CPRI2

Red/green

OFF The optical module is notconfigured with CPRI ports orthe module is powered off.

ON (green) The CPRI link is operational,and the RRU hardware isfunctional.

ON (red) The optical module is not inposition or the CPRI link isfaulty.

Blinking at 4 Hz (red, 0.125sON, 0.125s OFF)

The hardware of the RRUconnected to the CPRI link isfaulty and needs to be replaced.

Blinking at 0.5 Hz (red, 1s ON,1s OFF)

The VSWR alarm, antennaalarm, or RRU external alarmoccurs on the RRU connected tothe CPRI link.

PortThe WBBP has three ports. Table 2-17 describes the ports on the WBBP.

Table 2-17 Ports on the WBBP

Label Connector Type Data Rate Description

CPRI SFP l 1.25 Gbit/s(between the BBUand the RFU)

l 1.25 Gbit/s or 2.5Gbit/s (betweenthe BBU and theRRU)

Data transmissionport between theBBU and the RRU,supporting input andoutput of optical andelectrical signals

2.2.5 FANThe FAN is the fan unit of the BBU3900. The FAN controls the fan speed, detects the temperatureof the fan board, and dissipates the heat in the BBU.

PanelFigure 2-13 shows the panel of the FAN.



2-19

Figure 2-13 Panel of the FAN

FunctionsThe FAN has the following functions:l Controls the fan speed.

l Reports the fan status to the main control board.

l Detects the temperature of the air inlets.

l Dissipates the heat.

LEDThe FAN has one LED, indicating the running status of the module. Table 2-18 describes theLED and its status.

Table 2-18 LED on the FAN and its status


STATE Green 0.125s ON, 0.125sOFF

The module is notregistered, and noalarm is reported.

1s ON, 1s OFF The module isrunning properly.

Red OFF No alarm is reported.

1s ON, 1s OFF The module isreporting alarms.




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2.2.6 UPEUThis describes the Universal Power and Environment Interface Unit (UPEU) board. It is amandatory board of the BBU3900 that converts -48 V or +24 V DC to +12 V DC.

PanelThe UPEU is classified into the Universal Power and Environment Interface Unit Type A(UPEUA) and the Universal Power and Environment Interface Unit Type B (UPEUB). TheUPEUA converts -48 V DC to +12 V DC and the UPEUB converts +24 V DC to +12 V DC.Figure 2-14 shows the UPEUA panel and Figure 2-15 shows the UPEUB panel.

Figure 2-14 Panel of the UPEUA

(1) Power switch of the BBU

Figure 2-15 Panel of the UPEUB

(1) Power switch of the BBU

FunctionsThe UPEU has the following functions:l Convert -48 V or +24 V DC to +12 V DC that is applicable to the boards

l Provides four ports with two ports transmitting two RS485 inputs and the other two portstransmitting eight boolean signals

l Provides reverse connection protection for power cable connectors

LEDThe UPEU has one LED, indicating the running status of the board. Table 2-19 describes theLED and its status.



2-21

Table 2-19 LEDs on the UPEU and its status


RUN Green ON The UPEU isoperational.

OFF Input power isunavailable or theboard is faulty.

Ports

The UPEU has four ports with two ports transmitting two RS485 inputs and the other two portstransmitting eight boolean signals. When configured in different slots, the ports on the UPEUhave different functions. Figure 2-16 shows the slots in the BBU.

Figure 2-16 Slots in the BBU

Table 2-20 describes the ports on the panel of the UPEU.

Table 2-20 Description on the ports on the panel of the UPEU

Slot Label Connector

Quantity Description

PWR2 PWR 3V3 1 Introducing +24 V DC or -48 V DCpower

EXT-ALM0

RJ-45 1 No.8 to 11 Boolean signal input ports

EXT-ALM1


MON0 RJ-45 1 No.0 RS485 signal input port


PWR1 PWR 3V3 1 Introducing +24 V DC or -48 V DCpower

EXT-ALM0





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Quantity Description

EXT-ALM1




2.2.7 UEIUThis describes the Universal Environment Interface Unit (UEIU) of the BBU3900. The UEIUtransmits monitoring and alarm signals from the external devices to the main control andtransmission unit.

PanelFigure 2-17 shows the panel of the UEIU.

Figure 2-17 Panel of the UEIU

FunctionsThe UEIU has the following functions:l Provides two ports with each transmitting one RS485 signal.

l Provides two ports with each transmitting four boolean signals.

l Transmits monitoring signals and alarm signals from external devices to the main controland transmission unit.

PortsThe UEIU is configured in slot PWR1. It provides four ports with two ports transmitting twoRS485 inputs and the other two ports transmitting eight boolean signals.

Table 2-21 describes the ports on the panel of the UEIU.



2-23

Table 2-21 Ports on the panel of the UEIU


Quantity

Description

PWR1 EXT-ALM0


EXT-ALM1




2.2.8 UTRPThis describes the Universal Transmission Processing unit (UTRP) board. As the transmissionextension board of the BBU3900, the UTRP provides eight E1s/T1s, one unchannelized STM-1/OC-3 port, four electrical ports, or two optical ports.

SpecificationTable 2-22 describes the specifications of the UTRP.

Table 2-22 Specifications of the UTRP

Board Sub-board/Board Type Port

UTRP2 UEOC Two universal FE/GE opticalport

UTRP3 UAEC Ports for eight channels ofATM over E1/T1

UTRP4 UIEC Ports for eight channels of IPover E1/T1

UTRP6 UUAS Port for one unchannelizedSTM-1/OC-3

UTRP9 UQEC Four universal FE/GEelectrical ports

PanelFigure 2-18 shows the panel of the UTRP2 supporting two optical ports.

Figure 2-18 Panel of the UTRP2 supporting two optical ports




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Figure 2-19 shows the panel of the UTRP3 and UTRP4 supporting eight E1s/T1s.

Figure 2-19 panel of the UTRP3 and UTRP4 supporting eight E1s/T1sRUNALMACT

E1/T1(0-3)

UTRP

E1/T1(4-7)

Figure 2-20 shows the panel of the UTRP6 supporting one STM-1.

Figure 2-20 Panel of the UTRP6 supporting one STM-1

Figure 2-21 shows the panel of the UTRP9 supporting four electrical ports.

Figure 2-21 Panel of the UTRP supporting four electrical ports

Functions

The UTRP has the following functions:

l The UTRP2 provides two 100M/1000M Ethernet optical ports, performs functions of theMAC layer, receives and transmits data on Ethernet links, and analyzes the MAC address.

l The UTRP3 provides eight E1s/T1s and performs inverse multiplexing and demultiplexingon a single ATM cell flow on the eight E1/T1 links.

l The UTRP4 provides eight E1s/T1s, frames and deframes HDLC frames, and allocates andcontrols the 256 HDLC timeslot channels.

l The UTRP6 supports one unchannelized STM-1/OC-3 port.

l The UTRP9 provides four 10M/100M/1000M Ethernet electrical ports and performs thefunctions of the MAC layer and physical layer.

l The cold backup is supported.

LEDs

Table 2-23 describes the LEDs on the panel of the UTRP.



2-25

Table 2-23 LEDs on the panel of the UTRP


RUN Green ON The board has powerinput, but the board isfaulty.

OFF The board has nopower input, or theboard is faulty.


The board is runningproperly.


The board is notconfigured or isloading software.


The board is in theoffline state or undertest.

ALM Red ON or blinkingrapidly

The board isreporting alarms.

OFF The board is runningproperly.


The board isreporting a minoralarm.


The board isreporting a majoralarm.


The board isreporting a criticalalarm.

ACT Green ON The board is in activemode.

OFF The board is instandby mode.

UTRP2 and UTRP9 provide two LEDs for indicating the status of the current link. Table2-24 describes the LEDs on the Ethernet ports.




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Table 2-24 LEDs on the Ethernet ports of the UTRP2 and UTRP9


LINK Green OFF The link isdisconnected.

ON The link is properlyconnected.

ACT Orange Blinking The link is receivingor transmitting data.

OFF The link is notreceiving ortransmitting data.

PortsTable 2-25 describes the ports of the UTRP2 supporting two optical ports.

Table 2-25 Ports of the UTRP2 supporting two optical ports

Label Port Type Quantity Connector Type

FE/GE0 to FE/GE1 FE/GE optical port 2 SFP connector

Table 2-26 describes the ports on the UTRP3 and UTRP4 supporting eight E1s/T1s.

Table 2-26 Ports on the panel of the UTRP3 and UTRP4 supporting eight E1s/T1s


E1/T1 E1/T1 port 2 DB26 connector

Table 2-27 describes the port of the UTRP6 supporting one STM-1.

Table 2-27 Port of the UTRP6 supporting one STM-1


STM-1/OC-3 STM-1/OC-3 port 1 SFP connector

Table 2-28 describes the ports of the UTRP9 supporting four electrical ports.



2-27

Table 2-28 Ports of the UTRP9 supporting four electrical ports


FE/GE0 to FE/GE3 FE/GE electrical port 4 RJ-45 connector

DIP SwitchThere is no DIP switch on the UTRP2, UTRP6 and UTRP9.

The UTRP3 or UTRP4 has three DIP switches numbered from SW1 to SW3. SW1 and SW2 areused to set the grounding status of the eight E1s. SW3 is used to set matched impedance for theeight E1s. Figure 2-22 shows the DIP switch on the UTRP3 or UTRP4.

Figure 2-22 DIP switch on the UTRP3 or UTRP4

Table 2-29, Table 2-30, and Table 2-31 describe how to set the DIP switches on the UTRP.

Table 2-29 DIP switch SW1 on the UTRP

DIPSwitch


1 2 3 4







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DIPSwitch


1 2 3 4




CAUTIONSW1 and SW2 are set to OFF (balanced mode) by default. When the eight E1s are faulty, all theDIP bits of SW1 and SW2 should be set to ON to rectify faults. SW1 corresponds to E1s No.4to No.7 and SW2 corresponds to E1s No.0 to No.3.


DIPSwitch


1 2 3 4

SW3 OFF OFF ON ON T1 Mode

ON ON OFF OFF The E1impedance isset to 120ohms.

ON ON ON ON The E1impedance isset to 75ohms.


2.2.9 USCUThis describes the Universal Satellite card and Clock Unit (USCU).

Panel

The USCU has two types of panels, that is, the 0.5 U and 1 U panels, as shown in Figure 2-23and Figure 2-24 respectively.



2-29

Figure 2-23 Panels of the USCU (0.5 U)

Figure 2-24 Panels of the USCU (1 U)

(1) GPS port (2) RGPS port (3) TOD port (4) M-1PPS port (5) BITS port

FunctionsThe USCU has the following functions:

l Provides the synchronization clock information of the base station for the main controlboard

l Provides synchronization time information for the lower-level BBU to achieve the BBUclock cascading

LEDsTable 2-32 and Table 2-33 describe the LEDs on the USCU.

Table 2-32 LEDs on the USCU


RUN Green ON There is power supply, but theboard is faulty.

OFF There is no power supply, or theboard is faulty.

Blinking (ON for 1sand OFF for 1s)

The board is running properly.


Software is being loaded to theboard, or the board is notconfigured.




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ALM Red OFF The board is running properly,and no alarm is generated.

ON An alarm is generated, and theboard needs to be replaced.

Blinking (ON for 1sand OFF for 1s)

An alarm is generated. Thealarm may be caused by thefaults of the related boards orports. Therefore, whether theboard needs to be replacedcannot be decided.

ACT Green ON The serial port forcommunication between theUSCU and the main controlboard is enabled.

OFF The serial port forcommunication between theUSCU and the main controlboard is disabled.

Table 2-33 LEDs on the TOD port

Color Description Default

Green ON: The TOD port isconfigured as the inputport.

The green LED of the TOD0 port is OFF,and the yellow LED of the TOD0 port isON.

Yellow OFF: The TOD port isconfigured as the outputport.

The yellow LED of the TOD1 port is OFF,and the green LED of the TOD1 port is ON.

Ports

Table 2-34 describes the ports on the USCU.

Table 2-34 Ports on the USCU

Port Connector Description

GPS port SMA coaxialconnector

Receiving the GPS signals

RGPS port PCB weldedwiring terminal

Receiving the RGPS signals



2-31

Port Connector Description

TOD0 port RJ-45 connector Receiving or transmitting the 1PPS+TOD signals

TOD1 port RJ-45 connector Receiving or transmitting the 1PPS+TOD signals,and receiving TOD signals from the M1000

BITS port SMA coaxialconnector

Receiving the BITS clock signals, supportingadaptive input of 2.048 MHz and 10 MHz clockreference source

M-1PPS port SMA coaxialconnector

Receiving 1PPS signals from the M1000

2.2.10 UBRIThe Universal Baseband Radio Interface Board (UBRI) provides extended CPRI optical orelectrical ports to implement convergence, distribution, and multi-mode transmission on theCPRI.

Panel

Figure 2-25 shows the panel of the UBRI.

Figure 2-25 Panel of the UBRI

Functions

The UBRI performs the following functions:

l Provides extended CPRI optical or electrical ports

l Performs convergence, distribution, and multi-mode transmission on the CPRI

LEDs

Table 2-35 describes the LEDs on the panel of the UBRI.

Table 2-35 LEDs on the panel of the UBRI

LED Color State Description

RUN Green ON steady There is powersupply, but the boardis faulty.




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LED Color State Description

OFF steady There is no powersupply, or the boardis in the alarm status.

1s ON, 1s OFF The board worksproperly.

0.125s ON, 0.125sOFF

The board is loadingsoftware.

ALM Red ON or blinking at ahigh frequency

The board is in thealarm status.

OFF steady No alarm isgenerated.

ACT Green ON steady The board worksproperly.

OFF steady The board is notworking.

The UBRI provides six LEDs indicating the status of the CRRI links, which are above the SFPports. Table 2-36 describes the CPRI link status LED.

Table 2-36 CPRI link status LED

Label Color State Description

CPRIx Red/Green ON (green) The CPRI link isavailable.

ON (red) The optical modulefails to receivesignals.

0.125s ON, 0.125sOFF (Red)

The RRU on the CPRIlink is faulty.

1s ON, 1s OFF (red) The CPRI link is outof lock.

PortsTable 2-37 describes the ports on the panel of the UBRI.



2-33

Table 2-37 Ports on the panel of the UBRI

Label Connector Port Quantity Description

CPRI0 to CPRI5 SFP 6 Connecting the BBUand the RF module

2.2.11 Optical-to-Electrical Conversion ModuleThe optical-to-electrical conversion module is optional, which converts the SFP optical port intothe RJ-45 port.

The optical-to-electrical conversion module is installed in the FE/GE0 port ontheUTRP2.Figure 2-26 shows the optical-to-electrical conversion module.

Figure 2-26 Optical-to-Electrical conversion module

NOTEThe optical-to-electrical conversion module is supported in SRAN2.1.




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3 BBU3900 Cables

About This Chapter

This describes the cables of the BBU3900 in terms of their appearance, pin assignment, andinstallation positions.

3.1 List of BBU3900 CablesThis describes the BBU3900 cables. The BBU3900 cables are the PGND cable, BBU powercable, E1/T1 cable, E1/T1 surge protection transfer cable, FE/GE cable, FE/GE surge protectiontransfer cable, interconnection cable between FE electrical ports, interconnection cable betweenFE optical ports, CPRI optical cable, monitoring signal cable between the APMI and the BBU,monitoring signal cable between HEUA and BBU, monitoring signal cable for the EMUA,monitoring signal cable for the PSU (DC/DC), in-position signal cable for the PSU (DC/DC),BBU alarm cable and GPS clock signal cable.

3.2 PGND CableThis describes the PGND cable. The PGND cable ensures the grounding of the BBU.

3.3 BBU Power CableThis describes the power cable. Either -48 V power cable or +24 V power cable can be used,depending on the power input.

3.4 E1/T1 CableThis describes the E1/T1 cable. It connects the BBU to the controller and transmits basebandsignals.

3.5 E1/T1 Surge Protection Transfer CableThis describes the E1/T1 surge protection transfer cable connecting the main control unit withthe USLP2 or the UELP. This cable is optional.

3.6 FE/GE CableThis describes the FE/GE cable. It connects the BBU to the transmission equipment and transmitsbaseband signals.

3.7 FE/GE Surge Protection Transfer CableThis describes the FE/GE surge protection transfer cable. It is an optional cable that connectsthe main control board to the UFLP.

3.8 Cable Between Two FE Electrical Ports

BBU3900Hardware Description 3 BBU3900 Cables


3-1

The cable between two FE electrical ports connects the GTMU and the WMPT to implement IPtransmission.

3.9 Cable Between Two FE Optical PortsThe cable between two FE optical ports connects the GTMU and the WMPT to implement IPtransmission.

3.10 FE/GE Optical CableThe FE/GE optical cable is used to transmit optical signals between the BBU3900 and thetransmission device. This cable is optional.

3.11 CPRI Optical CableThe CPRI optical cable is used to transmit CPRI signals between the BBU and RRU or betweenRRUs.

3.12 Monitoring Signal Cable Between the APMI and the BBUThis describes the monitoring signal cable between the APMI and the BBU. It transmits theenvironment monitoring signals of the power cabinet to the BBU.

3.13 Monitoring Signal Cable Between the HEUA and the BBUThe monitoring signal cable between the HEUA and the BBU transmits the monitoringinformation collected by the HEUA to the BBU.

3.14 Monitoring Signal Cable Between the CMUA and the BBUThe monitoring signal cable connects the CMUA and BBU and transmits the monitoring signalscollected by the CMUA to the BBU.

3.15 EMUA Monitoring Signal CableThis describes the EMUA monitoring signal cable. It transmits monitoring signals from theEMUA to the BBU. This cable is delivered with the EMUA.

3.16 Monitoring Signal Cable for the PSU (DC/DC)The monitoring signal cable for the PSU (DC/DC) is used for the BBU to monitor the powerfault alarms on the PSU.

3.17 In-Position Signal Cable for the PSU (DC/DC)The in-position signal cable for the PSU (DC/DC) is used for the BBU to monitor the in-positionstatus of the PSU.

3.18 BBU Alarm CableThe BBU alarm cable is used to transmit alarm signals from external equipment to the BBU.

3.19 GPS Clock Signal CableThis describes the GPS clock signal cable. It is an optional cable that transmits GPS clock signalsfrom the GPS antenna system to the BBU. The GPS clock signals serve as the clock referenceof the BBU.

3 BBU3900 CablesBBU3900



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3.1 List of BBU3900 CablesThis describes the BBU3900 cables. The BBU3900 cables are the PGND cable, BBU powercable, E1/T1 cable, E1/T1 surge protection transfer cable, FE/GE cable, FE/GE surge protectiontransfer cable, interconnection cable between FE electrical ports, interconnection cable betweenFE optical ports, CPRI optical cable, monitoring signal cable between the APMI and the BBU,monitoring signal cable between HEUA and BBU, monitoring signal cable for the EMUA,monitoring signal cable for the PSU (DC/DC), in-position signal cable for the PSU (DC/DC),BBU alarm cable and GPS clock signal cable.

Table 3-1 describes the List of BBU3900 Cables.

Table 3-1 List of BBU3900 Cables

Cable One End The Other End

Connector InstallationPosition


3.2 PGNDCable

OT terminal(6mm2, M4)

BBU/Grounding bolt


Nearestgrounding bar

3.3 BBUPowerCable

3V3 connector BBU/UPEU/PWR


DCDU/LOAD6

3V3 connector BBU/UPEU/PWR

Easy PowerReceptacle(Pressfit Type)Connector

EPS/LOAD1

3.4 E1/T1Cable

DB26 connector E1/T1 port onthe GTMU orUELP or WMPTor UTRP in theBBU

The connectorneeds to be madeon site accordingto the fieldrequirements.

Port on thetransmissiondevice

3.5 E1/T1SurgeProtectionTransferCable

DB26 connector E1/T1 port onthe GTMU orWMPT orUTRP in theBBU

DB25 connector BBU/UELP/INSIDE

3.6 FE/GECable

RJ-45 connector BBU/UFLP/FE0 port at theOUTSIDE sideBBU/GTMU orWMPT/FE0FE/GE port onthe UTRP in theBBU

RJ-45 connector Port on thetransmissiondevice



3-3




3.7 FE/GESurgeProtectionTransferCable

RJ-45 connector BBU/GTMU orWMPT/FE0FE/GE port onthe UTRP in theBBU

RJ-45 connector BBU/UFLP/FE0port at theINSIDE side

3.8 CableBetweenTwo FEElectricalPorts

RJ-45 connector BBU/WMPT/FE0

RJ-45 connector BBU/GTMU/FE0

3.9 CableBetweenTwo FEOpticalPorts

LC connector BBU/WMPT/FE1

LC connector BBU/GTMU/FE1

3.10 FE/GEOpticalCable

LC connector BBU/WMPT orGTMU/FE1

FC/SC/LCconnector

Port on thetransmissiondevice

3.11 CPRIOpticalCable

DLC connector BBU/GTMU orWBBP/CPRI

DLC connector RRU/CPRI_W

3.12MonitoringSignalCableBetween theAPMI andthe BBU

RJ-45 connector BBU/UPEU orUEIU/MON1

Twisted pair APMI/TX+, TX-,RX+, RX-

3.13MonitoringSignalCableBetween theHEUA andthe BBU

RJ-45 connector BBU/UPEU orUEIU/EXT_ALM

RJ-45 connector HEUA/COM_IN

3.14MonitoringSignalCableBetween theCMUA andthe BBU


RJ-45 connector CMUA/COM_IN




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3.15 EMUAMonitoringSignalCable

RJ-45 connector BBU/UPEU/MON1

DB9 maleconnector

EMUA/RS-485port

3.16MonitoringSignalCable forthe PSU(DC/DC)

RJ-45 connector BBU/UPEU orUEIU/EXT_ALM0

Cord endterminal

PSU(DC/DC)/ALM

3.17 In-PositionSignalCable forthe PSU(DC/DC)

RJ-45 connector BBU/UPEU orUEIU/EXT_ALM1

RJ-45 connector PSU(DC/DC)/PRESENT

3.18 BBUAlarmCable


RJ-45 connector Port on theexternalmonitoringdevice

3.19 GPSClockSignalCable

SMA maleconnector

BBU/WMPT orUSCU/GPS

N-type femaleconnector

GPS surgeprotector

3.2 PGND CableThis describes the PGND cable. The PGND cable ensures the grounding of the BBU.

Structure

The green and yellow PGND cable is a single cable with a cross-sectional area of 6 mm2. Bothends of the cable are OT terminals. If you prepare the cable by yourself, it is recommended thatyou use a copper-based cable with a minimum cross-sectional area of 6 mm2.

Figure 3-1 shows the PGND cable.



3-5

Figure 3-1 PGND cable

(1) OT terminal(6 mm2, M4)

3.3 BBU Power CableThis describes the power cable. Either -48 V power cable or +24 V power cable can be used,depending on the power input.

Structure

When the BBU is installed in a cabinet with a certain type of power supply, the type of the BBUpower cable depends on the type of the cabinet.

When the power supply is DCDU or PDU, the BBU power cable has a 3V3 connector at oneend and bare wires at the other end. Based on the connector of the power distribution device,appropriate terminals are added to the bare end on site. Figure 3-2 shows the power cable bytaking OT terminals at the bare end as an example.

Figure 3-2 BBU power cable - 1

(1) 3V3 connector (2) OT terminal(6mm2, M4)

NOTE

There are two -48 V power cables with one in blue and the other in black. The +24 V power cables havethe same structure to the -48 V power cables, but they differ in color. The +24 V power cable are in redand black.

When the power supple is EPS, the BBU power cable has a 3V3 connector at one end and easypower receptacle (pressfit type) connector at the other end. Figure 3-3 shows the structure ofthe power cable.




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Figure 3-3 BBU power cable - 2

(1) Easy Power Receptacle (Pressfit Type)Connector (2) 3V3 power connector

Pin Assignment

The power cable is a 2-wire cable. Table 3-2 and Table 3-3 describe the pin assignment for thewires of the power cable.

Table 3-2 Pin assignment for wires of the -48 V power cable

Pin on the 3V3Connector

Color Description

A1 Blue -48 V

A2 - -

A3 Black GND

Table 3-3 Pin assignment for wires of the +24 V power cable

Pin on the 3V3 Connector Color Description

A1 Red +24 V

A2 - -

A3 Black GND

3.4 E1/T1 CableThis describes the E1/T1 cable. It connects the BBU to the controller and transmits basebandsignals.

Structure

The E1/T1 cables are of two types: 75-ohm E1 coaxial cable and 120-ohm E1 twisted pair cable.

One end of the E1/T1 cable is a DB26 male connector. The connector at the other end of thecable should be made on site according to site requirements. Figure 3-4 shows an E1/T1 cable.



3-7

Figure 3-4 E1/T1 cable

Table 3-4 shows the connector of the 75-ohm E1 coaxial cable.

Table 3-4 Connector of the 75-ohm E1 coaxial cable

Cable One End The other End

75-ohm E1 coaxial cable DB26 male connector L9 male connector

L9 female connector

SMB female connector

BNC male connector

SMZ male connector

SMZ female connector

Pin Assignment

Table 3-5 and Table 3-6 describe the pin assignment for the wires of the E1/T1 cable.

NOTE

In Table 3-5, "Tip" refers to a wire in the E1 coaxial cable, and "Ring" refers to an external conductor ofthe cable.

Table 3-5 Pin assignment for the wires of the 75-ohm E1 coaxial cable

Pins of the DB26Male Connector

Wire Type Coaxial Series No. Cable Label

X1.1 Tip 1 RX1+

X1.2 Ring RX1-

X1.3 Tip 3 RX2+

X1.4 Ring RX2-

X1.5 Tip 5 RX3+

X1.6 Ring RX3-




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Wire Type Coaxial Series No. Cable Label

X1.7 Tip 7 RX4+

X1.8 Ring RX4-

X1.19 Tip 2 TX1+

X1.20 Ring TX1-

X1.21 Tip 4 TX2+

X1.22 Ring TX2-

X1.23 Tip 6 TX3+

X1.24 Ring TX3-

X1.25 Tip 8 TX4+

X1.26 Ring TX4-

Table 3-6 Pin assignment for the wires of the 120-ohm E1 twisted pair cable


Wire Color Wire Type Cable Labels

X.1 Blue Twisted pair cable RX1+

X.2 White RX1-

X.3 Orange Twisted pair cable RX2+

X.4 White RX2-

X.5 Green Twisted pair cable RX3+

X.6 White RX3-

X.7 Brown Twisted pair cable RX4+

X.8 White RX4-

X.19 Gray Twisted pair cable TX1+

X.20 White TX1-

X.21 Blue Twisted pair cable TX2+

X.22 Red TX2-

X.23 Orange Twisted pair cable TX3+

X.24 Red TX3-

X.25 Green Twisted pair cable TX4+



3-9


Wire Color Wire Type Cable Labels

X.26 Red TX4-

3.5 E1/T1 Surge Protection Transfer CableThis describes the E1/T1 surge protection transfer cable connecting the main control unit withthe USLP2 or the UELP. This cable is optional.

Structure

When the USLP2 is configured, the E1/T1 surge protection transfer cable has a DB26 maleconnector at one end and two RJ-45 connectors at the other end, as shown in Figure 3-5.

Figure 3-5 E1/T1 surge protection transfer cable (A)

(1) DB26 male connector (2,3) RJ-45 connector

When the UELP is configured, the E1/T1 surge protection transfer cable has a DB26 maleconnector at one end and a DB25 male connector at the other end, as shown in Figure 3-6.

Figure 3-6 E1/T1 surge protection transfer cable (B)

(1) DB25 male connector (2) DB26 male connector

Pin Assignment

Table 3-7 describes the pin assignment for the wires of the E1/T1 surge protection transfer cable(A).




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Table 3-7 Pin assignment for the wires of the E1/T1 surge protection transfer cable (A)

Pin on the DB26Male Connector

Pin on the RJ-45Connector

Color Type Assignment

X1.1 X2.1 White Twisted paircable

1E1.RX+

X1.2 X2.2 Blue 1E1.RX-


1E1.TX+

X1.20 X2.5 Orange 1E1.TX-


2E1.RX+

X1.4 X2.6 Green 2E1.RX-


2E1.TX+

X1.22 X2.8 Brown 2E1.TX-


3E1.RX+

X1.6 X3.2 Gray 3E1.RX-

X1.23 X3.4 Red Twisted paircable

3E1.TX+

X1.24 X3.5 Blue 3E1.TX-


4E1.RX+

X1.8 X3.6 Orange 4E1.RX-


4E1.TX+

X1.26 X3.8 Green 4E1.TX-

Table 3-8 describes the pin assignment for the wires of the E1/T1 surge protection transfer cable(B).

Table 3-8 Pin assignment for the wires of the E1/T1 surge protection transfer cable (B)

Pin on the DB26 MaleConnector

Type Pin on the DB25 MaleConnector

X1.20 Twisted pair cable X2.2

X1.19 X2.3


X1.3 X2.5


X1.21 X2.7




3-11

Pin on the DB26 MaleConnector

Type Pin on the DB25 MaleConnector

X1.5 X2.9


X1.23 X2.11


X1.7 X2.13


X1.2 X2.15


X1.26 X2.25

3.6 FE/GE CableThis describes the FE/GE cable. It connects the BBU to the transmission equipment and transmitsbaseband signals.

NOTEThe maximum remote distance of the FE/GE Ethernet cable is 100 m.

StructureThe FE/GE cable is a shielded straight through cable, has an RJ-45 connector at each end, asshown in Figure 3-7.

Figure 3-7 FE/GE cable

Pin AssignmentTable 3-9 describes the pin assignment for the wires of the FE/GE cable.

Table 3-9 Pin assignment for the wires of the FE/GE cable


Wire Color Wire Type Pin on the RJ-45 Connector

X1.2 Orange Twisted pair X2.2




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X1.1 White andorange

X2.1

X1.6 Green Twisted pair X2.6

X1.3 White andgreen

X2.3

X1.4 Blue Twisted pair X2.4

X1.5 White and blue X2.5

X1.8 Brown Twisted pair X2.8

X1.7 White andbrown

X2.7

3.7 FE/GE Surge Protection Transfer CableThis describes the FE/GE surge protection transfer cable. It is an optional cable that connectsthe main control board to the UFLP.

StructureThe FE/GE surge protection transfer cable has an RJ-45 connector at each end, as shown inFigure 3-8.

Figure 3-8 FE/GE surge protection transfer cable

Pin AssignmentTable 3-10 describes the pin assignment for the wires of the FE/GE surge protection transfercable.

Table 3-10 Pin assignment for the wires of the FE/GE surge protection transfer cable



X1.2 Orange Twisted pair X2.2

X1.1 White X2.1



3-13



X1.6 Green Twisted pair X2.6

X1.3 White X2.3

X1.4 Blue Twisted pair X2.4

X1.5 White X2.5

X1.8 Brown Twisted pair X2.8

X1.7 White X2.7

3.8 Cable Between Two FE Electrical PortsThe cable between two FE electrical ports connects the GTMU and the WMPT to implement IPtransmission.

AppearanceThe cable between two FE electrical ports has an RJ-45 connector at each end, as shown inFigure 3-9.

Figure 3-9 Cable between two FE electrical ports

(1) RJ-45 connector

3.9 Cable Between Two FE Optical PortsThe cable between two FE optical ports connects the GTMU and the WMPT to implement IPtransmission.

AppearanceThe cable between two FE optical ports has an LC connector at each end, as shown in Figure3-10.




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Figure 3-10 Cable between two FE optical ports

(1) LC connector

3.10 FE/GE Optical CableThe FE/GE optical cable is used to transmit optical signals between the BBU3900 and thetransmission device. This cable is optional.

AppearanceThe FE/GE optical cable has an LC connector at one end and an FC connector, SC connector,or LC connector at the other end, as shown in Figure 3-11, Figure 3-12, and Figure 3-13respectively.

Figure 3-11 FE/GE optical cable (FC and LC connectors)

Figure 3-12 FE/GE optical cable (SC and LC connectors)

Figure 3-13 FE/GE optical cable (LC and LC connectors)



3-15

CAUTIONTo connect the BBU3900 and the transmission device by using the FE/GE optical cable, adhereto the following rules:l The TX port on the BBU3900 is connected to the RX port on the transmission device.

l The RX port on the BBU3900 is connected to the TX port on the transmission device.

3.11 CPRI Optical CableThe CPRI optical cable is used to transmit CPRI signals between the BBU and RRU or betweenRRUs.

StructureThe CPRI optical cable is a multi-mode 2-wire cable with a DLC connector at each end. Figure3-14 shows the CPRI optical cable.

Figure 3-14 CPRI optical cable

(1) DLC connector (2) Label on the fiber tail

(3) Fiber tail

When the CPRI optical cable is used for connection between the BBU and RRU, the fiber tailsat the BBU side and RRU side are 0.35 m and 0.05 m respectively. When the CPRI optical cableis used for connection between RRUs, the fiber tails at both RRU sides are 0.05 m.

Pin AssignmentTable 3-11 and Table 3-12 describes the pin assignment for the fiber tails of the CPRI opticalcable between the BBU and RRU and the CPRI optical cable between RRUs respectively.

Table 3-11 Pin assignment for the fiber tails of the CPRI optical cable between the BBU andRRU

Label Color Connection

1A Orange CPRI_W RX port on the RRU

1B Gray CPRI_W TX port on the RRU




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Label Color Connection

2A Orange TX port on the BBU

2B Gray RX port on the BBU

Table 3-12 Pin assignment for the fiber tails of the CPRI optical cable between RRUs

Label Color Connects to...

1A Orange CPRI_W RX port on theRRU 1

1B Gray CPRI_W TX port on theRRU 1

2A Orange CPRI_E TX port on the RRU0

2B Gray CPRI_E RX port on the RRU0

3.12 Monitoring Signal Cable Between the APMI and theBBU

This describes the monitoring signal cable between the APMI and the BBU. It transmits theenvironment monitoring signals of the power cabinet to the BBU.

StructureThe monitoring signal cable between the APMI and the BBU has an RJ-45 connector at one endand four bare wires at the other end. Figure 3-15 shows the monitoring signal cable betweenthe APMI and the BBU.

Figure 3-15 Monitoring signal cable between the APMI and the BBU

Pin AssignmentTable 3-13 describes the pin assignment for the wires of the monitoring signal cable betweenthe APMI and the BBU.



3-17

Table 3-13 Pin assignment for the wires of the monitoring signal cable between the APMI andthe BBU

Pin on theRJ-45Connector

Color X2 to X5 Ends Description Terminal on theAPMI

X1.1 White X2 Twisted pair TX+

X1.2 Orange X3 TX-

X1.4 Blue X4 Twisted pair RX+

X1.5 White X5 RX-

3.13 Monitoring Signal Cable Between the HEUA and theBBU

The monitoring signal cable between the HEUA and the BBU transmits the monitoringinformation collected by the HEUA to the BBU.

Appearance

Figure 3-16 shows the monitoring signal cable between the HEUA and the BBU.

Figure 3-16 Monitoring signal cable between the HEUA and the BBU

(1) RJ-45 connector

Pin Assignment

Table 3-14 describes the pin assignment for the wires of the monitoring signal cable betweenthe HEUA and the BBU.

Table 3-14 Pin assignment for the wires of the monitoring signal cable between the HEUA andthe BBU

X1 End X2 End Wire Color Wire Type

X1.1 X2.1 White Twisted pair

X1.2 X2.2 Orange





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X1.6 X2.6 Green


X1.4 X2.4 Blue


X1.8 X2.8 Brown

3.14 Monitoring Signal Cable Between the CMUA and theBBU

The monitoring signal cable connects the CMUA and BBU and transmits the monitoring signalscollected by the CMUA to the BBU.

StructureFigure 3-17 shows the monitoring signal cable between the CMUA and the BBU.

Figure 3-17 Monitoring signal cable between the CMUA and the BBU

(1) RJ-45 connector

Pin AssignmentTable 3-15 describes the pin assignment for the wires of the monitoring signal cable betweenthe CMUA and the BBU.

Table 3-15 Pin assignment for the wires of the monitoring signal cable between the CMUA andthe BBU



X1.2 X2.2 Orange


X1.6 X2.6 Green




3-19


X1.4 X2.4 Blue


X1.8 X2.8 Brown

3.15 EMUA Monitoring Signal CableThis describes the EMUA monitoring signal cable. It transmits monitoring signals from theEMUA to the BBU. This cable is delivered with the EMUA.

AppearanceFigure 3-18 shows the EMUA monitoring signal cable.

Figure 3-18 EMUA monitoring signal cable

(1) RJ-45 connector (2) DB9 male connector

Pin AssignmentTable 3-16 describes the pin assignment for the wires of the EMUA monitoring signal cable.

Table 3-16 Pin assignment for the wires of the EMUA monitoring signal cable

Pin on theRJ-45Connector

Pin on the DB9Male Connector

Color Description Terminal onthe APMI

X1.1 X2.3 White Twisted pair TX+

X1.2 X2.7 Orange TX-

X1.5 X2.6 White Twisted pair RX-

X1.4 X2.2 Blue RX+




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3.16 Monitoring Signal Cable for the PSU (DC/DC)The monitoring signal cable for the PSU (DC/DC) is used for the BBU to monitor the powerfault alarms on the PSU.

Figure 3-19 shows the Monitoring signal cable for the PSU (DC/DC).

Figure 3-19 Monitoring signal cable for the PSU (DC/DC)

3.17 In-Position Signal Cable for the PSU (DC/DC)The in-position signal cable for the PSU (DC/DC) is used for the BBU to monitor the in-positionstatus of the PSU.

StructureFigure 3-20 shows the in-position signal cable for the PSU (DC/DC).

Figure 3-20 In-position signal cable for the PSU (DC/DC)View A

A

1 8

1

X1 X2

(1) RJ-45 connector

Pin AssignmentTable 3-17 describes the pin assignment of the in-position signal cable for the PSU (DC/DC).

Table 3-17 Pin assignment of the in-position signal cable for the PSU (DC/DC)



X1.2 X2.2 Orange


X1.6 X2.6 Green



3-21



X1.4 X2.4 Blue


X1.8 X2.8 Brown

3.18 BBU Alarm CableThe BBU alarm cable is used to transmit alarm signals from external equipment to the BBU.

Structure

The BBU alarm cable has an RJ-45 connector at each end, as shown in Figure 3-21. One RJ-45connector at one end, however, may be removed and an appropriate terminal may be addedaccording to the field requirements.

Figure 3-21 BBU alarm cable

Pin Assignment

Table 3-18 shows the wire sequence of the BBU alarm cable.

Table 3-18 Wire sequence of the BBU alarm cable

BBUAlarmPort

Pin on theRJ45Connector

WireColor

WireType


Description

EXT-ALM1


Twistedpair

X2.1 Boolean value input 4+

X1.2 Orange X2.2 Boolean value input 4-(GND)

X1.3 White andgreen

Twistedpair


X1.6 Green X2.6 Boolean value input 5-(GND)




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BBUAlarmPort


WireColor

WireType


Description

X1.5 White andblue

Twistedpair


X1.4 Blue X2.4 Boolean value input 6-(GND)

X1.7 White andbrown

Twistedpair


X1.8 Brown X2.8 Boolean value input 7-(GND)

EXT-ALM0


Twistedpair


X1.2 Orange X2.2 Boolean value input 0-(GND)

X1.3 White andgreen

Twistedpair


X1.6 Green X2.6 Boolean value input 1-(GND)

X1.5 White andblue

Twistedpair


X1.4 Blue X2.4 Boolean value input 2-(GND)

X1.7 White andbrown

Twistedpair


X1.8 Brown X2.8 Boolean value input 3-(GND)

3.19 GPS Clock Signal CableThis describes the GPS clock signal cable. It is an optional cable that transmits GPS clock signalsfrom the GPS antenna system to the BBU. The GPS clock signals serve as the clock referenceof the BBU.

StructureThe GPS clock signal cable has an SMA male connector at one end and an N-type connector atthe other end, as shown in Figure 3-22.



3-23

Figure 3-22 GPS clock signal cable

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




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4 Auxiliary Devices of the BBU3900

About This Chapter

This describes the auxiliary devices of the BBU3900. The devices consist of the EMUA andSLPU.

4.1 EMUAThe Environment Monitoring Unit (EMUA) monitors the internal environment of the cabinetand reports related alarms.

4.2 DCDU-03The Direct Current Distribution Unit-03 (DCDU-03) supplies DC power to each component inthe cabinet. The height of the DCDU-03 is 1 U. It can be classified into the DCDU-03B andDCDU-03C according to the configured MCBs and application scenarios. The two models havethe same exterior, engineering specifications, and ports.

4.3 SLPUThe signal lightning protection unit (SLPU), which can be optionally configured with the UFLP,UELP, or USLP2, provides the signal surge protection.

BBU3900Hardware Description 4 Auxiliary Devices of the BBU3900


4-1

4.1 EMUAThe Environment Monitoring Unit (EMUA) monitors the internal environment of the cabinetand reports related alarms.

The EMUA is connected to the main equipment through alarm cables, monitoring theenvironment information of the equipment room and cabinet. The EMUA monitors the followingitems:

l Environment such as the temperature and humidity, water damage, and smoke

l Intrusion status through the infrared equipment and door status sensor

l Power distribution

For details about the structure and functions of the EMUA, see the EMUA User Guide.

4.2 DCDU-03The Direct Current Distribution Unit-03 (DCDU-03) supplies DC power to each component inthe cabinet. The height of the DCDU-03 is 1 U. It can be classified into the DCDU-03B andDCDU-03C according to the configured MCBs and application scenarios. The two models havethe same exterior, engineering specifications, and ports.

Exterior

Figure 4-1 shows the DCDU-03.

Figure 4-1 DCDU-03

Functions

The DCDU-03 provides nine -48 V DC outputs and different MCB configurations to meet thepower distribution requirements of the scenarios of distributed and separated base stations.

Table 4-1 describes the DC power distribution functions of the DCDU-03.

4 Auxiliary Devices of the BBU3900BBU3900



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Table 4-1 DC power distribution functions of the DCDU-03

DCDUModel

DC OutputTerminal

PowerConsumptionEquipment

MCBSpecification

MCBQuantity

Application Scenario

DCDU-03B LOAD0 toLOAD5

RRU 20 A 6 Distributedbase station/Mini basestationLOAD6 to

LOAD8BBU and thetransmissionequipment ofthe customer

12 A 3

DCDU-03C LOAD0 toLOAD5

RRU 12 A 6 Separatedmacro basestation

LOAD6 BBU 12 A 1

LOAD7 andLOAD8

Transmission equipmentof thecustomer

6 A 2

Ports

Figure 4-2 describes the ports on the panel of the DCDU-03.

Figure 4-2 Ports on the panel of the DCDU-03

LOAD0 LOAD1 LOAD2 LOAD3 LOAD4 LOAD5 LOAD6 LOAD7 LOAD8DCDU-03C

SPDALMSW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8

SW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8

Table 4-2 describes the ports on the panel of the DCDU-03.



4-3

Table 4-2 Ports on the panel of the DCDU-03

Port Specification Cross-Sectional Area(Unit: mm2)

Remarks

DC inputterminal

Supporting M62-hole OTterminal

l DCDU-03B: 25

l DCDU-03C: 25

-

DC outputterminal

LOAD0 toLOAD8 (fromleft to right)LOAD0 toLOAD8

2.5 l Three rows of wiringterminals for outputs:NEG(-), RTN(+), andPGND, where, the lastthree pairs of the PGNDwiring terminals supportthe grounding of the M42-hole OT terminals,which are marked in redin Figure 4-2

l Supporting the outputpower cable with amaximum cross-sectionalarea of 6 mm2

4.3 SLPUThe signal lightning protection unit (SLPU), which can be optionally configured with the UFLP,UELP, or USLP2, provides the signal surge protection.

4.3.1 Structure of SLPUThe SLPU has a case structure, which requires a 19 inch-wide and 1 U-high space.

4.3.2 Board Configuration of the SLPUThis describes the board configuration of the SLPU.

4.3.3 UELPThe Universal E1/T1 Lightning Protection (UELP) is a universal E1/T1 surge protection unit,each UELP provides surge protection for four E1s/T1s.

4.3.4 UFLPThe universal FE/GE lightning protection (UFLP) board is a universal FE/GE surge protectionunit, each UFLP supports 2-way FE/GE surge protection.

4.3.5 USLP2The Universal Signal Lightning Protection unit 2 (USLP2) is a RS485, boolean alarm and E1/T1 surge protection unit. It is optional and can be installed in the SLPU. Each USLP2 providesprotection for four RS485 signal, four E1s/T1s, or eight Boolean alarm signals.

4.3.1 Structure of SLPUThe SLPU has a case structure, which requires a 19 inch-wide and 1 U-high space.

Figure 4-3 shows the structure of SLPU.




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Figure 4-3 Structure of SLPU

4.3.2 Board Configuration of the SLPUThis describes the board configuration of the SLPU.

Slots of the SLPU

Figure 4-4 shows the slots of the SLPU.

Figure 4-4 Slots of the SLPU

Board Configuration of the SLPU

Table 4-3 describes the board configuration of the SLPU.

Table 4-3 Board configuration of the SLPU

Board Mandatory/Optional


InstallationSlot

Requirements

UELP Optional 4 slot 0 - slot 3 The priority oftheconfiguration:slot 2, slot 0, slot1, slot 3.



4-5

Board Mandatory/Optional


InstallationSlot

Requirements

UFLP Optional 1 slot 3 If both theUELP and theUFLP are to beconfigured, thepriority of theconfiguration ofthe UFLP ishigher than thatof theconfiguration ofthe UELP.

USLP2 Optional 2 slot 2 and slot 3 -

4.3.3 UELPThe Universal E1/T1 Lightning Protection (UELP) is a universal E1/T1 surge protection unit,each UELP provides surge protection for four E1s/T1s.

PanelFigure 4-5 shows the panel of the UELP.

Figure 4-5 Panel of the UELP

PortsTable 4-4 describes the ports on the panel of the UELP.

Table 4-4 Ports on the panel of the UELP

Label Connector Type

INSIDE DB25

OUTSIDE DB26




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DIP Switch

The UELP has one DIP switch, which is used to check whether the receive terminal is grounded.The DIP switch has four bits. Figure 4-6 shows the DIP switch on the UELP.

Figure 4-6 DIP switch on the UELP

Table 4-5 describes the DIP switch on the UELP.

Table 4-5 DIP switch on the UELP

DIPSwitch


1 2 3 4

S1 ON ON ON ON 75-ohm E1 cable

OFF OFF OFF OFF 120-ohm E1 cable or 100-ohm T1 cable

4.3.4 UFLPThe universal FE/GE lightning protection (UFLP) board is a universal FE/GE surge protectionunit, each UFLP supports 2-way FE/GE surge protection.



4-7

PanelFigure 4-7 shows the panel of the UFLP.

Figure 4-7 Panel of the UFLP

PortsTable 4-6 describes the ports on the panel of the UFLP.

Table 4-6 Ports on the panel of the UFLP

Port Location Label Connector Type

INSIDE side FE0, FE1 RJ-45

OUTSIDE side FE0, FE1 RJ-45

4.3.5 USLP2The Universal Signal Lightning Protection unit 2 (USLP2) is a RS485, boolean alarm and E1/T1 surge protection unit. It is optional and can be installed in the SLPU. Each USLP2 providesprotection for four RS485 signal, four E1s/T1s, or eight Boolean alarm signals.

PanelFigure 4-8 shows the panel of the USLP2.

Figure 4-8 Panel of the USLP2

PortsTable 4-7 describes the ports on the panel of the USLP2.




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Table 4-7 Ports on the panels of the USLP2

Port Quantity Connected Cable

RJ-45 2 Surge protection transfer cablefrom the main control board inthe cabinet

4-pin 4 Transmission cable from anexternal device

DIP Switch

The USLP2 has two DIP switches, which determine whether the receiving end is grounded. TheDIP switch has four DIP bits. Figure 4-9 shows the DIP switches on the USLP2.

Figure 4-9 DIP switches on the USLP2

Table 4-8 describes the DIP switches on the USLP2.

Table 4-8 DIP switches on the USLP2

DIPSwitch


1 2 3 4

S1 and S3 ON ON ON ON 75-ohm E1/T1 (unbalanced) surgeprotection

OFF OFF OFF OFF 120-ohm E1/T1 (balanced) surgeprotection



4-9

bbu3900 hardware description (v100_03)

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