flexi multiradio bts lte installation site requirements

LTE Radio Access, Rel. RL50,Operating Documentation,Issue 02

Flexi Multiradio BTS LTEInstallation SiteRequirements DN0951839Issue 01AApproval Date 2013-11-29

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Flexi Multiradio BTS LTE Installation Site Requirements

2 DN0951839 Issue: 01A

Table of ContentsThis document has 86 pages

Summary of changes..................................................................... 8

1 CE marking.................................................................................... 9 2 FCC Part 15 compliance.............................................................. 10 3 RSS-310 compliance....................................................................11 4 EU RoHS statement.....................................................................12 5 Environmental requirements........................................................ 135.1 Environmental specifications and requirements for a standalone

BTS.............................................................................................. 135.2 Installations with cabinet ............................................................. 155.3 Environmental specifications and requirements for modules in

Flexi Cabinet for Indoor (FCIA).................................................... 165.4 Environmental specifications and requirements for modules in

Flexi Cabinet for Outdoor (FCOA) without air filter...................... 175.5 Environmental specifications and requirements for modules in

Flexi Cabinet for Outdoor (FCOA) with air filter........................... 195.6 Environmental specifications and requirements for modules in

Flexi Mounting Shield (FMSA/FMSB).......................................... 205.7 Environmental specifications and requirements for Remote Radio

Head.............................................................................................225.8 Safety distance requirements (compliance boundaries).............. 235.9 Compliance with EMC, RF and safety......................................... 31 6 Site requirements......................................................................... 336.1 Planning and preparing the site................................................... 336.2 General site requirements............................................................336.2.1 Indoor site requirements.............................................................. 346.2.2 Choosing site for the Remote Radio Heads.................................346.3 Feederless site and Distributed site solution requirements..........356.3.1 NSN SFPs properties...................................................................356.3.2 DC cable lengths of the Feederless Site Concept....................... 376.3.3 DC cabling principles and shielding............................................. 476.4 Pole installation requirements...................................................... 476.5 Floor installation requirements..................................................... 496.6 Wall installation requirements...................................................... 516.7 Module clearances....................................................................... 516.8 Remote Radio Head clearances.................................................. 526.9 FPAD clearances..........................................................................536.10 Flexi Cabinet for Indoor (FCIA) clearances and anchoring holes....

53


Issue: 01A DN0951839 3

6.11 Flexi Cabinet for Outdoor (FCOA) clearances and anchoring holes..................................................................................................... 55

6.12 Flexi Mounting Shield (FMSA and FMSB) clearances andanchoring holes............................................................................57

7 Power requirements..................................................................... 607.1 Site earth and BTS grounding requirements................................607.2 Mains power requirements...........................................................617.2.1 Circuit breakers............................................................................ 617.2.2 FPMA Battery backup times.........................................................627.2.3 FPMA AC wiring and Fuse requirements.....................................637.3 RF Module and RRH DC cable requirements.............................. 647.3.1 DC cable requirements for 80 W RF Modules............................. 647.3.2 DC cable requirements for 6TX 40W RF Modules.......................647.4 BTS power consumption.............................................................. 667.4.1 Power consumption of various FDD Flexi Multiradio BTS

configurations...............................................................................667.4.2 Power consumption of TDD Flexi RF Modules and RRHs

configurations...............................................................................687.5 Lightning surge requirements.......................................................69 8 Dimensions and weights.............................................................. 758.1 Module dimensions and weights.................................................. 758.1.1 RF Module dimensions and weight.............................................. 758.1.2 RRH Module dimensions and weight........................................... 768.2 FCIA dimensions and weight....................................................... 798.3 Flexi Cabinet for Outdoor (FCOA) dimensions and weight.......... 808.4 Flexi Mounting Shield (FMSA and FMSB) dimensions and weights

..................................................................................................... 818.5 Flexi Power Rectifier (FPRx) dimensions.....................................82 9 Citytalk cabinet requirements.......................................................83 10 Third-party cabinet requirements................................................. 84 11 19-inch open rack requirements...................................................86


4 DN0951839 Issue: 01A

List of FiguresFigure 1 List of countries respecting EU Directive 1999/5/EC............................9Figure 2 Sea salt distribution over land masses............................................... 16Figure 3 Area around the antenna....................................................................25Figure 4 Antenna side and top view................................................................. 25Figure 5 Antenna connection to the BTS..........................................................28Figure 6 Formula for safety distances.............................................................. 30Figure 7 DC cable lengths of the Feederless Site Concept..............................38Figure 8 Example DC Power Feeder Graph.....................................................40Figure 9 50 mm2 cable length as function of load............................................ 41Figure 10 35 mm2 cable length as function of load............................................ 42Figure 11 25 mm2 cable length as function of load............................................ 43Figure 12 16 mm2 cable length as function of load............................................ 44Figure 13 10 mm2 cable length as function of load............................................ 45Figure 14 6 mm2 cable length as function of load...............................................46Figure 15 Wind load calculations, side view....................................................... 48Figure 16 Wind load calculations, front view...................................................... 49Figure 17 Anchoring the plinth on the floor.........................................................50Figure 18 Anchoring the plinth on base with maintenance space in the back.... 51Figure 19 Minimum RRH clearances for cooling purposes................................ 52Figure 20 FPAD clearances for cooling purposes.............................................. 53Figure 21 Clearances around FCIA.................................................................... 54Figure 22 FCIA fixing points, minimum clearances............................................ 54Figure 23 FCIA fixing points with maintenance space in the back..................... 55Figure 24 Cabinet clearances and anchoring holes........................................... 56Figure 25 FCOA cabinet bottom cable entry...................................................... 57Figure 26 FMSA fixing points..............................................................................58Figure 27 FMSB fixing points..............................................................................59Figure 28 3U module dimensions without covers............................................... 75Figure 29 3U module dimensions with covers.................................................... 76Figure 30 Isometric view of the RF Module FRGT............................................. 76Figure 31 Isometric view of the Remote Radio Head (FRIG)............................. 78Figure 32 Isometric view of the Remote Radio Head (FHDB)............................ 79Figure 33 Module level cooling in a third-party cabinet...................................... 85Figure 34 19-inch open rack............................................................................... 86


Issue: 01A DN0951839 5

List of TablesTable 1 Climatic conditions for operation........................................................ 13Table 2 Temperature and humidity values ......................................................14Table 3 Flexi Multiradio BTS sound power levels (measured according to ISO

3744).................................................................................................. 14Table 4 Climatic conditions for operation........................................................ 16Table 5 Climatic conditions for operation........................................................ 17Table 6 FCOA (without air filter) sound power level........................................ 18Table 7 Temperature and humidity values ......................................................18Table 8 Climatic conditions for operation........................................................ 19Table 9 FCOA (with air filter) sound power level............................................. 19Table 10 Temperature and humidity values ......................................................20Table 11 Climatic conditions for operation........................................................ 21Table 12 Temperature and humidity values ......................................................21Table 13 FMSA/FMSB sound power levels (measured according to ISO 3744)...

21Table 14 Climatic conditions for operation........................................................ 22Table 15 Remote Radio Head temperature range............................................ 23Table 16 Whole body SAR exclusion power levels........................................... 24Table 17 Dimensions of compliance boundary (General Public).......................26Table 18 Dimensions of compliance boundary (occupational).......................... 26Table 19 A detailed description of the components...........................................28Table 20 A typical antenna specification........................................................... 28Table 21 Basic restrictions................................................................................ 29Table 22 Reference values calculated from basic restrictions.......................... 30Table 23 3 Gbps SFPs properties..................................................................... 35Table 24 6 Gbps SFPs properties..................................................................... 36Table 25 Conductors maximum current and circuit protection.......................... 38Table 26 NSN requirements for a shielded, locally sourced DC cable (3U RF

Module), T=20ºC (68ºF)..................................................................... 47Table 27 Area for wind load calculations...........................................................49Table 28 Area for wind load calculations (FMSA)............................................. 49Table 29 Required minimum clearances........................................................... 52Table 30 Cabinet clearances.............................................................................53Table 31 Cabinet clearances.............................................................................55Table 32 FMSA clearances............................................................................... 57Table 33 FMSB clearances............................................................................... 57Table 34 Permitted operating voltage................................................................61Table 35 Battery backup times.......................................................................... 62Table 36 Fuse and wire cross section requirements single phase AC..............63


6 DN0951839 Issue: 01A

Table 37 Fuse and wire cross section requirements three phase AC............... 63Table 38 Fuse and wire cross section requirements three phase AC for dual

FPMA..................................................................................................63Table 39 DC Cable Requirements for 80 W RF Modules..................................64Table 40 DC cable requirements for 6TX 40W FRMC, FRPA, FRPB Modules.65Table 41 DC cable requirements for 6TX 40W FRHC, FRHF Modules............ 65Table 42 Typical and maximum power consumptions for Flexi Multiradio BTS

configurations in LTE FDD..................................................................66Table 43 Power consumption of Flexi Outdoor Cabinet fans FCFA, FCSA, and

FCOS..................................................................................................67Table 44 Typical power consumptions for Flexi Multiradio BTS configurations in

LTE TDD.............................................................................................68Table 45 Switching and lightning transient requirements for AC power port ....69Table 46 Surge immunity requirements for DC power port............................... 69Table 47 Lightning surge requirements for antenna ports.................................70Table 48 Lightning surge requirements for telecom ports................................. 70Table 49 Surge requirements for alarm and control ports................................. 71Table 50 Lightning surge requirements for Ethernet ports................................ 71Table 51 Lightning surge requirements for FSEC/FSES...................................72Table 52 Lightning surge requirements (DC power port) FPFD........................ 72Table 53 Lightning surge requirements for FPFC............................................. 73Table 54 Lightning surge requirements for selected RF Modules..................... 73Table 55 Lightning surge requirements for selected RRHs...............................74Table 56 RF Module dimensions and weight.................................................... 75Table 57 Dimensions and weight of the Remote Radio Head...........................76Table 58 Dimensions and weight of Flexi Cabinet for Indoor (FCIA)................ 80Table 59 Dimensions and weight of Flexi Cabinet for Outdoor (FCOA)............80Table 60 Dimensions and weight of Flexi Mounting Shield 6U (FMSA)............ 81Table 61 Dimensions and weight of Flexi Mounting Shield 18U (FMSB).......... 81Table 62 Flexi Power Rectifier FPRA................................................................ 82Table 63 Air volume flow and cabinet pressure drop........................................ 84


Issue: 01A DN0951839 7

Summary of changesChanges between document issues are cumulative. Therefore, the latest documentissue contains all changes made to previous issues.

Changes between issues 01 (2013-09-18, RL50) and 01A (2013-11-29,RL50)• Tables: Dimensions of compliance boundary (General Public) and Dimensions of

compliance boundary (occupational) have been updated.• Section Battery backup times has been renamed to FPMA Battery backup times.• Section DC cable requirements for 80 W RF Modules has been updated with the

FRGT information.• Sections: DC cable requirements for 80 W RF Modules and Lightning surge

requirements have been updated with the FPFC information.• The following sections have been added:

– FPAD clearances– FPMA AC wiring and Fuse requirements– DC cable requirements for 6TX 40W RF Modules– Flexi Power Distribution and Fuses (FPFC)

• The following sections have been updated:

– Circuit breakers– Third-party cabinet requirements– FPMA Battery backup times

This is the first issue of the document.This document is a combined version of two documents, Flexi Multiradio BTS LTEInstallation Site Requirements (DN09123378, issue 01, 2013-05-24) and Flexi MultiradioBTS LTE Installation Site Requirements (DN0951839, issue 03C, 2013-07-11), whichwere available respectively in RL25TD library and RL40 library in the previous releases.

Summary of changes Flexi Multiradio BTS LTE Installation Site Requirements

8 DN0951839 Issue: 01A

1 CE markingDeclaration of Conformity with Regard to the EU Directive 1999/5/EC (R&TTEDirective)Hereby, NSN declares that this equipment is in compliance with the essentialrequirements and other relevant provisions of Directive: 1999/5/EC.

Figure 1 List of countries respecting EU Directive 1999/5/EC

AT ü FR ü LV ü LI ü

BE ü DE ü LT ü RO ü

BG ü GB ü LU ü SK ü

CY ü GR ü MT ü SI ü

CZ ü HU ü NL ü ES ü

DK ü IS ü NO ü SE ü

EE ü IE ü PL ü CH ü

FI ü IT ü PT

R&TTE�Directive�1995/5/EC

ü TR ü

This declaration is only valid for configurations (combinations of software, firmware, andhardware) provided and/or supported by NSN.

Flexi Multiradio BTS LTE Installation Site Requirements CE marking

Issue: 01A DN0951839 9

2 FCC Part 15 complianceThis equipment has been tested and found to comply with the limits for a Class A digitaldevice, pursuant to Part 15 of the FCC Rules. These limits are designed to providereasonable protection against harmful interference in a commercial environment. Thisequipment generates, uses, and can radiate radio frequency energy and, if not installedand used in accordance with the instruction manuals, may cause harmful interference toradio communications. Operation of this equipment in a residential area is likely to causeharmful interference in which case the user will be required to correct the interference athis own expense. Changes or modifications not expressly approved by the partyresponsible for compliance could void the user´s authority to operate the equipment.

FCC Part 15 compliance Flexi Multiradio BTS LTE Installation Site Requirements

10 DN0951839 Issue: 01A

3 RSS-310 complianceThis device complies with RSS-310 of Industry Canada. Operation is subject to thecondition that this device does not cause harmful interference.

Flexi Multiradio BTS LTE Installation Site Requirements RSS-310 compliance

Issue: 01A DN0951839 11

4 EU RoHS statementThis equipment complies with the European Union RoHS Directive 2011/65/EU on therestriction of the use of certain hazardous substances in electrical and electronicequipment. The directive applies to the use of lead, mercury, cadmium, hexavalentchromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE)in electrical and electronic equipment.

EU RoHS statement Flexi Multiradio BTS LTE Installation Site Requirements

12 DN0951839 Issue: 01A

5 Environmental requirements

5.1 Environmental specifications and requirements fora standalone BTS

w NOTICE:Unprotected equipment might be damaged during transportation. Transport theequipment to the installation site in its original transportation package.

Flexi Multiradio stand-alone BTS (modules installed without a cabinet) can operate underthe environmental specifications defined in Table 1: Climatic conditions for operation,Table 2: Temperature and humidity values, andTable 3: Flexi Multiradio BTS sound power levels (measured according to ISO 3744).

Table 1 Climatic conditions for operation

Property

Value

Transportation requirements ETSI EN 300 019-1-2, Class 2.3(for single module, in packing)

Storage requirements ETSI EN 300 019-1-1, Class 1.2(for single module, in packing)

Operational requirements ETSI EN 300 019-1-3, class 3.2 (indoor site)ETSI EN 300 019-1-4, class 4.1 (outdoor site)

Wind driven rain GR-487-COREMIL-STD 810E method 506.3 for Rainfall rate 15 cm/h(0.49 ft/h) and Wind velocity 31 m/s (69.35 mph)

Wind load Two 3U modules, FMFA and mounting kit (VMPB or FP-KA/FPKC): 67 m/s (149.87 mph)

Salt fog and dust IEC 60721-2-5IEC 60068-2-52/Kb, Stress level 1 with 0,44% salt solu-tion by weight.This corresponds to IEC 60721-2-5 Humid costal andinland (moderate) environment with < 8mg/(m2day) saltdeposition for outdoor BTS without optional cabinet withair filter.A typical installation location example: not less than 500m from the seashore.

Ingress Protection IP65 (no water ingress allowed)

Safety IEC/EN 60950-1, UL 60950-1

Earthquake Requirements Telcordia GR-63-CORE, Vibrational requirements forearthquake Zone 4Max. 5 modules in pile, maximum total height 15 U

Flexi Multiradio BTS LTE Installation Site Requirements Environmental requirements

Issue: 01A DN0951839 13

Table 1 Climatic conditions for operation (Cont.)

Property

Value

Telcordia GR-63-CORE, Vibrational requirements forearthquake Zone 2Max. 9 modules in pile, maximum total height 22 U

Table 2 Temperature and humidity values

Property

Temperature

Humidity, relative

Transportation -40°C - +70°C (-40°F - +158°F) Max. 95%

Storage -33°C - +40°C (-27.4°F - +104°F) 15 - 100%

High ambient air temperaturelimit

+55°C (+131°F) in shade with guar-anteed minimum performance of3GPP specification+50°C (+122°F) in shade with guar-anteed performance (that is betterthan 3GPP)+50°C (+122°F) in direct sunlightwith guaranteed minimum perfor-mance of 3GPP specification+45°C (+113°F) in direct sunlightwith guaranteed performance (thatis better than 3GPP)

15 - 100%

Operational -35°C - +55°C (-31°F - +131°F) ~95%

Table 3: Flexi Multiradio BTS sound power levels (measured according to ISO 3744)shows the sound power levels measured with linear curve control.

Table 3 Flexi Multiradio BTS sound power levels (measured according to ISO3744)

Configuration

Minimum[dBA](15°C (59°F),10% RF load)

Typical [dBA](23°C (73.4°F),50% RF load)

Max [dBA](40°C (104°F),100% RF load)

Max [dBA](50°C (122°F),100% RF load)

1+1+1@ 20 WSystem Module with one3-sector RF Module

Max. 51 Max. 54 Max. 60 Max. 65

1+1+1@ 40 WSystem Module with one3-sector RF Module

Max. 54 Max. 56 Max. 62 Max. 66

2+2+2@ 40 W Max. 57 Max. 59 Max. 66 Max. 69

Environmental requirements Flexi Multiradio BTS LTE Installation Site Requirements

14 DN0951839 Issue: 01A

Table 3 Flexi Multiradio BTS sound power levels (measured according to ISO3744) (Cont.)

Configuration

Minimum[dBA](15°C (59°F),10% RF load)

Typical [dBA](23°C (73.4°F),50% RF load)

Max [dBA](40°C (104°F),100% RF load)

Max [dBA](50°C (122°F),100% RF load)

System Module and twoRF Modules

FPMA effectAdd to above values:

Max. 3 Max. 3 Max. 3 Max. 3

For the sound power of a 3-sector RF Module alone, see the values for a 1+1+1@ 20 W config-uration.

For the sound power of a System Module alone, subtract 3 dBA from the above values.

5.2 Installations with cabinetModules must be installed in an indoor cabinet or an outdoor cabinet, when:

• more than nine modules are installed in a stack (total height over 22 U*)• more than five modules are installed in a stack (total height over 15 U) and the

Telcordia GR-63-CORE Zone 4 requirement is still met• the BTS is installed in a separate locked space• cabinet can be also used as one option to make locked space

g 22 U high stack meets Telcordia GR-63-CORE Zone 2 earthquake requirement.

An air filter must be used together with the BTS cabinet when standard-basedoperational environmental conditions presented inEnvironmental specifications and requirements for a stand-alone BTS are exceeded.Typically, a cabinet with an optional air filter is needed:

• in places where dust is a concern• next to a dusty road with heavy traffic• in sandy terrain with the possibility of wind-blown sand in the air• next to an industrial plant with significant emissions of dust or other particles, such as

cement factory, sawmill, and so on• nearby a cornfield with heavy straw dust during harvesting• in places where salt fog or acid rain caused by air pollution is a concern• in site locations where surrounding metal structures show signs of corrosion because

of the extreme conditions (salt in air)• in locations with especially heavy rainfall and high humidity combined with air

pollution• near sea shore:

– with dense salt fog because of the breaking waves– with dense salt fog and line of sight to the sea (not behind a large building)– where wind-driven salt fog from sea can be identified


Issue: 01A DN0951839 15

For a generic model for sea salt distribution, seeFigure 2: Sea salt distribution over land masses. Typically, the further away from the seathe BTS is located the less salt is accumulated. However, because of the localenvironmental variables a general rule for determining the distance cannot be stated.Always check the local environmental conditions before installing a BTS in the proximityof the sea.

Figure 2 Sea salt distribution over land masses

5.3 Environmental specifications and requirements formodules in Flexi Cabinet for Indoor (FCIA)Flexi Multiradio BTS modules inside Flexi Cabinet for Indoor (FCIA) can operate asdefined in Table 4: Climatic conditions for operation.


Property

Value

Transportation requirements ETS 300 019-1-2, class 2.3

Storage requirements ETS 300 019-1-1, class 1.2

Operational requirements ETS 300 019-1-3, class 3.2GR-63-CORE


16 DN0951839 Issue: 01A


Property

Value

Salt fog and dust IEC 60068-2-60/Ke

Ingress Protection IP20

Safety IEC/EN 60950-1, UL 60950-1

Earthquake requirements Telcordia GR-63-CORE, Zone 4

5.4 Environmental specifications and requirements formodules in Flexi Cabinet for Outdoor (FCOA)without air filterFlexi Multiradio BTS modules installed inside Flexi Cabinet for Outdoor (FCOA) canoperate as defined in Table 5: Climatic conditions for operation,Table 6: FCOA (without air filter) sound power level, andTable 7: Temperature and humidity values.


Property

Value

Transportation requirements ETSI EN 300 019-1-2, Class 2.3

Storage requirements ETSI EN 300 019-1-1, Class 1.2

Operational requirements ETSI EN 300 019-1-4, class 4.1 and IEC class 4M5

Wind driven rain GR-487-COREMIL-STD 810E method 506.3 for Rainfall rate 15 cm/h (0.49ft/h)Wind velocity 31 m/s (69.35 mph)

Wind load Wind load 67 m/s (149.87 mph)

Salt fog and dust IEC 60721-2-5IEC 60068-2-52/Kb, Stress level 1 with 0,44% salt solutionby weight.This corresponds to IEC 60721-2-5 Humid costal and inland(moderate) environment with < 8mg/(m2/day) salt depositionfor outdoor BTS without optional cabinet with air filter.Typical installation location example: 500 m (546 yd 2.4 ft)from the seashore.


Safety IEC/EN 60950-1, UL 60950-1


Issue: 01A DN0951839 17


Property

Value


Table 6: FCOA (without air filter) sound power level shows the sound power levelsmeasured with linear curve control.

Table 6 FCOA (without air filter) sound power level

Value

Configuration

Max [dBA]

Sound power, night time(in +15°C (59°F), 10% RF load,ISO3744)

1+1+1 40W/carrier(System Module with one 3-sector RFModule)

55

Sound power, day time(in +23°C (73.4°F), 50% RF load,ISO3744)


57

Sound power, extreme(in +40°C (104°F), 100% RF load,ISO3744)


63


Property

Temperature

Humidity, relative%


Storage -33°C - +40°C (-27.4°F - +104°F) 15 - 100%

High ambient airtemperature limit

+55°C (+131°F) in shade with guaranteedminimum performance of 3GPP specification+50°C (+122°F) in shade with guaranteedperformance (that is better than 3GPP)+50°C (+122°F) in direct sunlight with guaran-teed minimum performance of 3GPP specifi-cation+45°C (+113°F) in direct sunlight with guaran-teed performance (that is better than 3GPP)

15 - 100%


g To reduce the risk of temperature alarms or power reduction, average poweracross all TX branches should be limited to 60 W or less (or 4 kW total powerconsumption for all modules in cabinet) for ambient temperatures 46-55ºC(114.8-131ºF). Temperature alarms are based on internal module sensors.


18 DN0951839 Issue: 01A

5.5 Environmental specifications and requirements formodules in Flexi Cabinet for Outdoor (FCOA) withair filterFlexi Multiradio BTS modules installed inside Flexi Cabinet for Outdoor (FCOA) with anoptional air filter can operate as defined in Table 8: Climatic conditions for operation,Table 9: FCOA (with air filter) sound power level, andTable 10: Temperature and humidity values.


Property

Value




Wind driven rain GR-487-COREMIL-STD 810E method 506.3 for rainfall rate 15cm/h ()0.49ft/hWind velocity 31 m/s (69.35 mph)


Salt fog and dust IEC 60721-2-5IEC 60068-2-52/Kb, Stress level 1 with 5% salt solution byweightThis corresponds to IEC 60721-2-5 oceanic and coastal en-vironment with > 8mg/(m2day) salt deposition for outdoorBTS with optional air filter.

When installing a cabinet with an air filter on a seashore, it is recommended that the cabinet isinstalled with the side wall facing the sea (not the filter or the door).


Safety IEC/EN 60950-1, UL 60950-1


Table 9: FCOA (with air filter) sound power level shows the sound power levelsmeasured with linear curve control.

Table 9 FCOA (with air filter) sound power level

Value

Configuration

Max [dBA]

Sound power, night time 1+1+1 40W/carrier 56*


Issue: 01A DN0951839 19

Table 9 FCOA (with air filter) sound power level (Cont.)

Value

Configuration

Max [dBA]

(in +15°C (59°F), 10% RF load,ISO3744)

(System Module with one 3-sectorRF Module)

Sound power, day time(in +23°C (73.4°F), 50% RF load,ISO3744)

1+1+1 40W/carrier(System Module with one 3-sectorRF Module)

59*

Sound power, extreme(in +40°C (104°F), 100% RF load,ISO3744)

1+1+1 40W/carrier(System Module with one 3-sectorRF Module)

65*

*) Sound power figures measured with a clean filter.


Property

Temperature

Humidity, relative%


Storage -33°C - +40°C (-27.4°F - +104°F) 15 - 100%

High ambient airtemperature limit

+55°C (+131°F) in shade with guaranteed min-imum performance of 3GPP specification+50°C (+122°F) in shade with guaranteed per-formance (that is better than 3GPP)+50°C (+122°F) in direct sunlight with guaran-teed minimum performance of 3GPP specifi-cation+45°C (+113°F) in direct sunlight with guaran-teed performance (that is better than 3GPP)

15 - 100%



5.6 Environmental specifications and requirements formodules in Flexi Mounting Shield (FMSA/FMSB)Flexi Multiradio BTS modules installed inside Flexi Mounting Shield (FMSA/FMSB)cabinet can operate in the climatic conditions as defined inTable 11: Climatic conditions for operation.


20 DN0951839 Issue: 01A


Property

Value


Wind driven rain GR-487-COREWind velocity 31 m/s (69.36 mph)



Safety IEC 60529

Earthquake requirements Telcordia GR-63-CORE, Zone 4*

*If a sixth module is installed in the cabinet, the earthquake requirements are according toZone 2.

In extreme conditions, for example, with high salinity less than 500 m to the sea or highdust density in the air, it is required to use a shelter or outdoor cabinet with an air filter.


Property

Temperature

Humidity, relative%


Storage -33°C - +40°C (-27.4°F - +104°F) 15 - 100%


Table 13: FMSA/FMSB sound power levels (measured according to ISO 3744) showsthe sound power levels measured with linear curve control.

Table 13 FMSA/FMSB sound power levels (measured according to ISO 3744)

Configuration

Minimum[dBA](in 15°C(59°F), 10%RF load)

Typical [dBA](in 23°C(73.4°F), 50%RF load)

Max [dBA](in 40°C(104°F),100% RFload)


1+1+1 @ 20W(System Module one 3-sectorRF Module)

Max. 51 Max. 54 Max. 60 Max. 65

1+1+1 @ 40W(System Module with one 3-sector RF Module)

Max. 54 Max. 56 Max. 62 Max. 66

2+2+2 @ 40W Max. 57 Max. 59 Max. 66 Max. 69


Issue: 01A DN0951839 21

Table 13 FMSA/FMSB sound power levels (measured according to ISO 3744)(Cont.)

Configuration

Minimum[dBA](in 15°C(59°F), 10%RF load)

Typical [dBA](in 23°C(73.4°F), 50%RF load)



(System Module and two RFModules)

FPMA effectAdd to above values:

Max. 3 Max. 3 Max. 3 Max. 3

5.7 Environmental specifications and requirements forRemote Radio Head

w NOTICE:Unprotected equipment might be damaged during transportation. Transport theequipment to the installation site in its original transportation package.


Property

Value



Operational requirements ETSI EN 300 019-1-4, class 4.1 and IEC class4M5

Wind driven rain GR-487-COREMIL-STD 810E method 506.3 for Rainfall rate 15cm/hr.Wind velocity 31 m/s

Wind load Mounting kit (VMPB or FPKA/FPKC) included: 67m/s

Salt fog and dust IEC 60721-2-5IEC 60068-2-52/Kb, Stress level 1 with 0,44% saltsolution by weight.This corresponds to IEC 60721-2-5 Humid costaland inland (moderate) environment with <8mg/(m2day) salt deposition for outdoor BTS with-out optional cabinet with air filter.Typical installation location example: 500 m fromthe seashore.


22 DN0951839 Issue: 01A


Property

Value


Safety IEC-60950-1


For Remote Radio Head temperature range, seeTable 15: Remote Radio Head temperature range.

Table 15 Remote Radio Head temperature range

Property

Temperature

Note

Maximum operational out-door temperature(in the shade)

+55°C (131°F) At constant high ambient tem-perature maximum output powermight be limited.

Maximum operational out-door temperature

(in the sun)1)

+50°C (122°F) At constant high ambient tem-perature maximum output powermight be limited.

Maximum indoor tempera-ture

+40°C (104°F) This is valid for fanless products.

Minimum operational tem-perature

-40°C (-40°F) Including cold start.

The Remote Radio Head can be classified as silent. Therefore, a sound power leveltable is not included.

5.8 Safety distance requirements (complianceboundaries)This section describes compliance with reference levels (based on basic restrictions) forgeneral public and occupational exposure to radio frequency electromagnetic fields.

Ensuring public safetyThis equipment generates radio frequency energy, which has a thermal effect whenabsorbed by the human body. For this reason compliance boundaries specific to thisequipment have been established. The thermal effects of radio frequency energy canexceed safety levels when a person is inside the established compliance boundaries.Observe the compliance boundary, and make sure the general public has no access toareas inside the established boundaries. The information shown in the sectionWarnings and cautions provided is taken from the relevant section of NSN productdocumentation containing warnings and cautions specific to the equipment.

1) According to GR-487-Core specification


Issue: 01A DN0951839 23

Installing base stations to ensure installer safetyInstallation engineers need to be aware of the potential risk of the thermal effects of radiofrequency energy and how to protect themselves against undue risk. The informationshown in the Warnings and cautions provided section is taken from the relevant sectionof NSN product documentation containing warnings and cautions specific to theequipment.

Warnings and cautions providedReference safety distancesWhen working close to transmitter antennas, the proper safety distances must beobserved. The minimum safe distance from an antenna is measured in metres.

f The antenna generates electromagnetic fields at radio frequencies. Do notcross the compliance boundary.

f This equipment generates electromagnetic fields. If performing installation ormaintenance procedures on the antenna systems, make sure that all thetransmitters in the area are switched off.When assessing the applicable boundaries, the European standards EN 50383, EN50384, EN 50385 and Council Recommendation 1999/519/EC for occupational andgeneral public electromagnetic exposure limits - see Annex A - have been applied.

The statements shown below are taken from the NSN product documentation containingwarning and cautions specific to the equipment.

Assessment applying Specific Absorption Rate (SAR)measurementsEuropean standards EN 50383, EN 50384 and EN 50385 do not include specificationsfor whole body SAR measurements. Whole body SAR measurements are not requiredfor transmitters that have maximum output power levels too low to result in exposurelevels that can reach the whole body SAR compliance limits under any conditions. Wholebody SAR exclusion power levels have been based on the worst case assumptions. Fordetails, see Table 16: Whole body SAR exclusion power levels.

Table 16 Whole body SAR exclusion power levels

Exposure category

Maximum output power (rms)

General public Max power [W] = general public wholebody SAR limit [W/kg] * 12.5 kg: 4-year-old child body mass = 1 W

Occupational Max power [W] = occupational whole bodySAR limit [W/kg] * 42 kg: 16-year-oldworker body mass = 16.8 W

Localized SAR measurements can only be used when:

1. The separation between the phantom and the outer surface of the energy generatingelement is 40 cm (15.6 in.) or less.

2. The surface area of the energy generating element is less than 60 cm (23.6 in.) by30 cm (11.8 in.).

3. The frequency is in the range of 800 to 3000 MHz.


24 DN0951839 Issue: 01A

For the reasons above, SAR measurements are not applicable to Flexi Multiradio BaseStation.

Assessment of compliance boundaryThe compliance boundary is defined as the area around the antenna shown inFigure 3: Area around the antenna. The antenna is located at the origo. Distances fromthe antenna are shown. The top and side views are shown inFigure 4: Antenna side and top view.

Figure 3 Area around the antenna

0

0

0

Dsideback

Ddown

Drear

Dfront front

front

Dside

Dside

Dup

DN03400968

Origo

Figure 4 Antenna side and top view

DN03400995

1 2

Dsideback

Drear

backDside

Dfronttriangle

Dsidefront

Dsidefront

Drear

Dup

Ddown

Dfronttriangle

Dfront

The compliance boundaries for Flexi Multiradio Base Station are presented for the worstcase power levels at the antenna input. The worst case power level configurations forgeneral public (GP) and occupational (O) exposure limits are shown inTable 17: Dimensions of compliance boundary (General Public) andTable 18: Dimensions of compliance boundary (occupational).


Issue: 01A DN0951839 25

Table 17 Dimensions of compliance boundary (General Public)

Dfront[m]

Dfront

triangle

[m]

Drear[m]

Dside

back

[m]

Dside

front

[m]

Dup[m]

Ddown[m]

Freq. (MHz) Powerat an-tennainput

GP GP GP GP GP GP GP

900 40 7 2.4 0.3 0.4 2 0.95 0.95

1700 40 4.4 1.2 0.1 0.2 1.5 0.6 0.6

1700 2 * 60 7.7 2.4 0.1 0.7 3.0 0.8 1.8

1800 40 4.4 1.2 0.1 0.2 1.5 0.5 0.5

1900 80 6.45 1.5 0.25 0.4 2.05 0.6 0.6

2100 40 4.7 1.5 0.1 0.4 1.5 0.6 0.6

2100 60 5.7 2.0 0.1 0.5 1.85 1.6 1.0

2100 80 6.45 1.5 0.25 0.4 2.05 0.6 0.6

2100 2 * 60 7.8 3.0 0.1 0.8 2.8 2.1 1.4

2300 - 2600 8 0.85 0.25 0.1 0.15 0.15 0.7 0.7

2300 - 2600 20 2.7 0.75 0.1 0.25 0.65 1.1 0.8

2300 - 2600 40 4.5 1.6 0.1 0.4 1.4 1.45 1.1

2300 - 2600 60 5.8 1.8 0.1 0.5 2 1.7 1.25

Recommend 2-200 m (6.56- 656.17 ft.)

Table 18 Dimensions of compliance boundary (occupational)

Dfront[m]

Dfront

triangle

[m]

Drear[m]

Dside

back

[m]

Dside

front

[m]

Dup[m]

Ddown[m]

Freq. (MHz) Powerat an-tennainput

O O O O O O O

900 40 2.95 1 0.05 0.2 0.6 0.85 0.85

1700 40 1.9 1.1 0.1 0.2 0.45 0.48 0.48

1700 2 * 60 2.6 0.8 0.1 0.2 0.7 0.7 0.75


26 DN0951839 Issue: 01A

Table 18 Dimensions of compliance boundary (occupational) (Cont.)

Dfront[m]

Dfront

triangle

[m]

Drear[m]

Dside

back

[m]

Dside

front

[m]

Dup[m]

Ddown[m]

1800 40 2.1 1.1 0.1 0.2 0.65 0.45 0.45

1900 80 3 1.1 0.15 0.2 0.95 0.5 0.5

2100 40 1.95 0.7 0.1 0.25 0.5 0.6 0.6

2100 60 1.1 0.4 0.1 0.1 0.3 1.0 1.0

2100 80 3 1.1 0.15 0.2 0.95 0.5 0.5

2100 2 * 60 1.8 0.6 0.1 0.2 0.55 0.9 0.7

2300 - 2600 8 0.15 0.1 0.1 0.1 0.1 0.7 0.7

2300 - 2600 20 0.35 0.1 0.1 0.1 0.15 0.7 0.7

2300 - 2600 40 0.85 0.2 0.1 0.15 0.25 0.7 0.7

2300 - 2600 60 1.4 0.3 0.1 0.15 0.35 0.75 0.7

Recommend 2-200 m (6.56- 656.17 ft.)

The component specifications for 900 MHz and 1800 MHz also apply to 850 MHz and1900 MHz products, respectively, and can be used to demonstrate compliance with FCCguidelines for human exposure to radio frequency electromagnetic fields contained in theFCC document OET Bulletin 65 (August 1997).

Typical configurationThe antenna is connected through a connector and cable(s) to the base station asshown in Figure 5: Antenna connection to the BTS.


Issue: 01A DN0951839 27

Figure 5 Antenna connection to the BTS

To�the�base�station

Antenna�connector

Cable

Antenna

DN03401004

Table 19 A detailed description of the components

Power (Pout) 20/40/60 W

Total connector loss 0.0 dB

Total cable loss 0.0 dB

Total Loss (L) = Total connector loss + To-tal cable loss

0.0 dB

Number of transmitter unit (N) 1

Power at antenna input = PoutN10 -L / 10 20/40/60 W

The worst-case power level configuration is when the power at antenna input is 60 Wwith 2100 MHz frequency variant and 40 W with others.

Table 20 A typical antenna specification

Frequency 2100 MHz 1700 MHz 1800/1900/2100 MHz

Gain 17.2 dBi 17 dBi 17.2 dBi


28 DN0951839 Issue: 01A

Table 20 A typical antenna specification (Cont.)

Half-powerbeam width

H-plane: 68 deg. H-plane: 60deg.

H-plane: 68deg.

E-plane: 10 deg. E-plane: 10deg.

E-plane: 10deg.

Electricaldowntilt

0 deg. 0 deg. 0 deg.

Height/width/depth

1000 / 200 / 100mm

1100 / 200 /100 mm

1100 / 200 /100 mm

When using different configurationsIMPORTANT:• In tables: 'Dimensions of compliance boundary in meters for general public

(GP)' and 'Dimensions of compliance boundary in meters (Occupational)' thecompliance boundaries are given for worst case power levels. If an exposurelimit, antenna, and/or configuration is used which does not correspond to thelevels given in tables 'Dimensions of compliance boundary in meters forgeneral public (GP)' and 'Dimensions of compliance boundary in meters(Occupational)', the compliance boundary must be re-calculated according toEN50383.

• The formula for calculating the compliance boundary using the far-field model,which is referenced in EN50383, is given in ANNEX B later in this section. Thismodel is applicable for calculating the compliance boundary for the far-fieldregion and over estimates the compliance boundary for the radiating near-fieldregion, but is not applicable for calculating the compliance boundary for thereactive near-field region where the distance from the antenna is less than orequal to λ / 4.

ANNEX A: Council recommendation 1999/519/EC for occupationaland general public electromagnetic exposure limits

Table 21 Basic restrictions

Exposure char-acteristics

Frequencyrange

Whole bodyaverage SARW kg-1

LocalizedSAR (headand trunk) Wkg-1

LocalizedSAR (limbs)W kg-1

Occupational ex-posure

10 MHz - 10GHz

0.4 10 20

General publicexposure

10 MHz - 10GHz

0.08 2 4

Note that all SAR values are to be averaged over any period of 6 minutes. LocalizedSAR averaging mass is any 10 g of contiguous tissue: the maximum SAR so obtainedshould be the value used for the estimation of exposure.Basic restrictions between 10 GHz and 300 GHz are given in power densities. Foroccupational exposure, it is 50 Wm-2 and for general public exposure 10 Wm-2.


Issue: 01A DN0951839 29

Table 22 Reference values calculated from basic restrictions

Exposure charac-teristics

Frequencyrange

Electric fieldstrength V/m

Equivalent planewave power densi-ty S (W m-2)

Occupational ex-posure

10 - 400 MHz400 - 2000MHz2 - 300 GHz

61

3f1/2

137

10f/4050

General public ex-posure

10 - 400 MHz400 - 2000MHz2 - 300 GHz

28

1.375f1/2

61

2f/20010

• f is frequency in MHz• for frequencies between 100 KHz and 10 GHz, S is to be averaged over any period

of 6 minutes• for frequencies exceeding 10 GHz, S is to be averaged over any period of 68/f1.05

minutes (f in GHz)

ANNEX B: Far-field calculation methodThis model is applicable for calculating the compliance boundary for the far-field regionand over estimates the compliance boundary for the radiating near-field region, but is notapplicable for calculating the compliance boundary for the reactive near-field regionwhere the distance from the antenna is less than or equal to λ /4, which is 3.75 cm at2000 MHz. Therefore, all calculations are valid when the compliance boundary is greateror equal to the antenna dimensions plus λ /4.

The minimum safety distance (compliance boundary) in metres, or 'rmin', is calculatedaccording to the equation in Figure 6: Formula for safety distances:

Figure 6 Formula for safety distances

DN02152589

The meaning of each formula component is as follows:

• N is the number of transmitter units per one antenna• G is the antenna gain (in dB)• L is the minimum cable losses (in dB)• Pout is the maximum power of one transmitter unit (in W)• S is the maximum power density limit (in W/m²)

Note that in the far-field, the field calculation does not take into account the antenna size,which is assumed to be a point source. Therefore, when calculating the complianceboundary, the far-field data, antenna size and reactive field criteria have to be taken intoaccount.


30 DN0951839 Issue: 01A

5.9 Compliance with EMC, RF and safetyIn Europe, this means compliance with Directive 1999/5/EC of the European Parliamentand of the Council of 9 March 1999 on radio equipment and telecommunications terminalequipment and the mutual recognition of their conformity.In other market areas additional compliance is fulfilled according to relevant authorityrequirements.

EMC emissionCommon

• ETSI EN 301 489-1: Electromagnetic compatibility and Radio spectrum Matters(ERM); Electromagnetic Compatibility (EMC) standard for radio equipment andservices; Part 1: Common technical requirements.

• EN55022: “Limits and methods of measurement of radio disturbance characteristicsof information technology equipment”.

• FCC Code of Federal Regulations (CFR) 47, Part 15 “Radio Frequency Devices”.

WCDMA

• 3GPP TS 25.113: 3rd Generation Partnership Project; Technical Specification GroupRadio Access Networks; Base station and Repeater electromagnetic compatibility(EMC).

LTE

• 3GPP TS 36.113: 3rd Generation Partnership Project; Technical Specification GroupRadio Access Networks; Evolved Universal Terrestrial Radio Access (E-UTRA); BaseStation (BS) and Repeater electromagnetic compatibility (EMC).

EMC immunityCommon

• ETSI EN 301 489-1: “Electromagnetic Compatibility and Radio Spectrum Matters(ERM); Electromagnetic Compatibility (EMC) standard for radio equipment andservices - Part 1: Common technical requirements”.

• ETSI EN 301 489-23: “Electromagnetic Compatibility and Radio Spectrum Matters(ERM); Electromagnetic Compatibility (EMC) standard for radio equipment andservices - Part 23: Specific conditions for IMT-2000 CDMA Direct Spread (UTRA)Base Station (BS) radio, repeater and ancillary equipment”.

• IEC 1000-4-9: Pulse magnetic field immunity test.• IEC 1000-4-8: “Electromagnetic Compatibility (EMC) Part 4. Testing and

measurement techniques Section 8: Power frequency magnetic field immunity test,Basic EMC Publication”.

WCDMA

• 3GPP TS 25.113: 3rd Generation Partnership Project; Technical Specification GroupRadio Access Networks; Base station and Repeater electromagnetic compatibility(EMC).

LTE

• 3GPP TS 36.113: 3rd Generation Partnership Project; Technical Specification GroupRadio Access Networks; Evolved Universal Terrestrial Radio Access (E-UTRA); BaseStation (BS) and Repeater electromagnetic compatibility (EMC).


Issue: 01A DN0951839 31

RFCommon

• FCC Code of Federal Regulations (CFR) 47, Part 2 “Frequency Allocations andRadio Treaty Matters; General Rules and Regulations”.

• FCC Code of Federal Regulations (CFR) 47, Part 27 “Advanced Wireless Services”.

WCDMA

• ETSI EN 301 908-1: “Electromagnetic Compatibility and Radio Spectrum Matters(ERM); Base Stations (BS) and User equipment (UE) for IMT-2000 third-generationcellular networks - Part 1: Harmonized standard for IMT-2000, introduction andcommon requirements, covering essential requirements of article 3.2 of the R&DDirective”.

• ETSI EN 301 908-3: “Electromagnetic Compatibility and Radio Spectrum Matters(ERM); Base Stations (BS) and User equipment (UE) for IMT-2000 third-generationcellular networks - Part 3: Harmonized standard for IMT-2000 CDMA Direct Spread(UTRA FDD) (BS) covering essential requirements of article 3.2 of the R&DDirective”.

• 3GPP TS 25.141:”3rd Generation Partnership Project; Technical Specification GroupRadio Access Networks; Base station conformance testing (FDD)”.

• FCC Code of Federal Regulations (CFR) 47, Part 22 “Public Mobile Services”.• FCC Code of Federal Regulations (CFR) 47, Part 24 “Personal Communication

Services”.

LTE

• ETSI EN 301 908-14: IMT-2000 Evolved Universal Terrestrial Radio Access (E-UTRA) (BS). The scope of part 14 is Base Stations for E-UTRA as defined by ETSI(3GPP). Requirements and test suites are also referenced from Part 3 for E-UTRAFDD and from Part 7 for E-UTRA TDD.

• 3GPP TS 36.141:3rd Generation Partnership Project; Technical Specification GroupRadio Access Networks; Evolved Universal Terrestrial Radio Access (E-UTRA); BaseStation (BS) conformance testing

Safety• IEC 60950-1/ EN 60950-1: “Safety of Information Technology equipment including

electrical business equipment”.• EN 50383: Basic standard for the calculation and measurement of the

electromagnetic field strength and SAR related to human exposure from radio basestations and fixed terminal stations for wireless telecommunications system (110MHz - 40 GHz).

• EN 50384: Product standard to demonstrate the compliance of radio base stationsand fixed terminal stations for wireless telecommunications systems with the basicrestrictions or the reference levels related to human exposure to radio frequencyelectromagnetic fields (110 MHz - 40 GHz) - Occupational.

• EN 50385: Product standard to demonstrate the compliances of radio base stationsand fixed terminal stations for wireless telecommunications systems with the basicrestrictions or the reference levels related to human exposure to radio frequencyelectromagnetic fields (110 MHz - 40 GHz) - General public.

• UL 60950-1: “Safety of Information Technology Equipment”.• EN/IEC/UL 60950-22: Information technology equipment. Safety. Part 22: Equipment

installed outdoors.


32 DN0951839 Issue: 01A

6 Site requirements

6.1 Planning and preparing the sitePurposeBefore installing the BTS, the site must be properly surveyed and prepared, and allrequired external connections must be correctly installed. Any special requirements forinstallation must also be identified during the survey.

Steps

1 Check that the BTS can be installed safely:

• The site is accessible, adequately lit and safe for working.• Safety distance calculations are made and taken into account.• The site is prepared according to drawings.• The site survey is complete.• The Site Survey Report is available.• The site is clean.• Product delivery is complete.• All wiring is done in accordance with national electric code.• Needed equipment is available as defined in the Site Survey Report.• Sufficient service clearances are available.

2 Verify that the following external cabinet connections are available:

• Grounding busbar,• Mains power (AC or DC, depending on the site),• Transmission connection point.

6.2 General site requirementsEnsure that the following BTS site requirements are met:

1. All required documentation is available, for example, site-specific installationinstructions.

2. When radio link transmission is used, the line-of-sight to the far end radios has beenensured.

3. External connections for the cabinet are available: site grounding point, mains power(AC or DC according to the site), and transmission connection point. Furthermore,AC or DC distribution panel and AC electric are available for power tools.

4. Main grounding (earthing) is installed and tested.5. Floor or wall surface is even (installation base flatness requirement is 2 mm (0.08

in.).6. Wall or pole at the BTS site is strong enough to withstand the weight of the BTS.7. Wall or pole at the BTS site is strong enough to meet earthquake requirement

Telcordia GR-63-CORE Zone 4 (only applicable in earthquake areas).

Flexi Multiradio BTS LTE Installation Site Requirements Site requirements

Issue: 01A DN0951839 33

8. Pole at the BTS site is strong enough to withstand the wind load.9. The BTS is not taken out of its delivery package until the site construction work is

finished and the site is clean and dry.10. Site security is established so the BTS and other units can remain undisturbed at the

site.11. Make sure you can take the BTS to the installation site. For example, in roof top

installations, the hole through which you take the BTS to the roof must be largeenough.

6.2.1 Indoor site requirementsIf installing the BTS to an indoor site, ensure that the following indoor BTS siterequirements are met:

• Door and lock to site room are properly installed and operational (recommended).• Access to the site is secure.• The site is adequately lit.• Feeder entry hole and cable rack for feeder and power cables are ready, if needed.• Heater, or air conditioner, is installed and operational, if needed. This depends on the

heat emission and the environment.

6.2.2 Choosing site for the Remote Radio Heads

f CAUTION! Risk of personal injury.The unit might have very hot surfaces when operating in hot environments.The unit should be installed in a restricted access location so that unintentionaltouch of the unit hot surface is blocked.The Remote Radio Head is a heat dissipating unit and so it runs at a temperaturenotably above the local ambient. If the temperatures of the unit become excessive theunit runs less efficiently, therefore the unit should always be mounted vertically asdetailed in these instructions, in an area with unrestricted airflow/ventilation. Solarradiation can also significantly increase the temperature of the unit and so should betaken into consideration when choosing a location for the unit. In particular it isrecommended that the finned surfaces should be shaded from the sun. Ideally in theNorthern Hemisphere the unit should be located on a North facing wall where it isshaded from the sun; or in a location where an adjacent object or building offers similarshade. In the Southern hemisphere the unit is should ideally be located on a Southfacing wall. In areas where the temperature can be considered to be moderately warm,or the ambient temperature could reach temperatures of approaching 30°C (86ºF) orabove and shade is not given to the unit by any of the adjacent walls or buildings then asolar shield should be fitted to the unit.

Site requirements Flexi Multiradio BTS LTE Installation Site Requirements

34 DN0951839 Issue: 01A

6.3 Feederless site and Distributed site solutionrequirements

6.3.1 NSN SFPs properties

Table 23 3 Gbps SFPs properties

Property

SFP type (sales code)

FOSG (472063A)

FOSA (471546A)

FOSL (472807A)

Link length Up to 300 m over OM3up to 200 m over OM2using Standard Multi Mode ITU-TG651.1 or IEC 60793-2-10(A1a,b/A1a.2)

Up to 15 km (recom-mended above 2 km)

Up to 2 km

using Standard Single Mode, ITU G.652 or IEC60793-2 Type B1.1 or IEC 60793-2 Type B1.3 or

corresponding fibre

Link speed 3.072 Gbit/s

Center Wave length 850 nm 1310 nm ± 50 nm 1310 nm ± 50 nm

Total allowed attenuation forthe link

3 dB 9.5 dB 3 dB

Transmitter output power(OMA)

247 µW 290 µW 150 μW

Receiver sensitivity (OMA) 61 µW 24 µW 23 µW

Extinction ratio (min.) N/A 6 dB 6 dB

Max. transmission delay 1 µs (200m) 75 µs 10 µs

Max. return loss minimum return loss 12 dB

LC duplex optical connectorat SFP side

ANSI TIA/EIA-568-B.1, TIA/EIA604-10 (FOCIS 10), IEC 61754-20

Operating temperature -40°C - +80°C (-40°F - +176°F)

Installation temperature -20°C - +60°C (-4°F - +140°F)

Minimum bend radius 10x outside diameter (50 mm)

Minimum crush resistance 750 N/cm

Minimum tensile load 600 N

Minimum connector pull ten-sion force

200 N

Minimum Flammability UL94V-1, OFRN UL-1666 Riser


Issue: 01A DN0951839 35

Table 23 3 Gbps SFPs properties (Cont.)

Property


FOSG (472063A)

FOSA (471546A)

FOSL (472807A)

Minimum UV protection UV resistant

Weather protection IP 65 with NSN connector IP-shield and cable

Table 24 6 Gbps SFPs properties

Property


FOSH (472579A)

FOSI (472580A)

FOSN (472811A)

Link length Up to 300 m over OM3up to 200 m over OM2using Standard Multi Mode ITU-TG651.1 or IEC 60793-2-10(A1a,b/A1a.2)

Up to 15 km (recom-mended above 2 km)

Up to 2 km

using Standard Single Mode, ITU G.652 or IEC60793-2 Type B1.1 or IEC 60793-2 Type B1.3 or

corresponding fibre

Link speed 6.144 Gbit/s

Center Wave length 850 nm 1310 nm ± 50 nm 1310 nm ± 50 nm

Total allowed attenuation forthe link

3 dB 9.5 dB 3 dB

Transmitter output power(OMA)

400 μW 318 μW 550 μW

Receiver sensitivity (OMA) 71 μW 36 μW 66 μW

Extinction ratio (min.) 3 dB 3.5 dB 3.5 dB

Max. transmission delay 1 µs (200 m) 75 µs 10 µs

Max. return loss minimum return loss 12 dB

LC duplex optical connectorat SFP side

ANSI TIA/EIA-568-B.1, TIA/EIA604-10 (FOCIS 10), IEC 61754-20

Operating temperature -40°C - +80°C (-40°F - +176°F)

Installation temperature -20°C - +60°C (-4°F - +140°F)

Minimum bend radius 10x outside diameter (50 mm)

Minimum crush resistance 750 N/cm

Minimum tensile load 600 N


36 DN0951839 Issue: 01A

Table 24 6 Gbps SFPs properties (Cont.)

Property


FOSH (472579A)

FOSI (472580A)

FOSN (472811A)

Minimum connector pull ten-sion force

200 N

Minimum Flammability UL94V-1, OFRN UL-1666 Riser

Minimum UV protection UV resistant

Weather protection IP 65 with NSN connector IP-shield and cable

6.3.2 DC cable lengths of the Feederless Site ConceptThis guidance is intended for reference only and applies to copper conductors/cablesonly. Site designer is responsible to select proper cabling and circuit protection. Also takeinto account any national requirements that might apply.Assumptions:• Maximum currents at cables are defined according to the IEC 60364-5-52:2009

(Table B.52.2 column 6, cable with 2 loaded wires, Installation method C)• Wire sizes according to IEC 60228.• Maximum Distance:

– is calculated for the whole power chain.Power Source (BBU) to Remote RF (not taking into account possible chaining ofBBU Power source → FSM/PDU → FRM)

– is assumed with guaranteed/maximized BBU time, that is voltage drop in cable islimited to 6,0V.

– is calculated with worst case conditions, that is the lowest operational inputvoltage.

g Note:

• Cable Short circuit current maybe limiting cable maximum length. This isdepending of selected distribution Circuit Breaker. Site designer isresponsible to calculate end select proper circuit protection case by case.

• Installation method effects to the maximum allowed conductor current(Inside insulation, Inside conduit, surface installation, ground installation,etc.).

• National variations exist and have to be taken into account by site designer.• Use of optional sales items (like FSES) might have impact to voltage drop

calculations.• HW Limit is 25mm². If thicker cable is needed, then external jumpering is

needed.• NSN recommended DC feeder cable type is MCCMK or MCMK shielded

cable. An equivalent locally supplied DC cable might be used, it is alsorecommended to use shielded twisted pair cable type.


Issue: 01A DN0951839 37

Figure 7 DC cable lengths of the Feederless Site Concept

Calculation principleLVD = 42 V (maybe also higher if PLVD used)∆UAB max = 6 V assumed for this calculation

UA = -42...-57 VDC

UB = -40,5...-57 VDC (extended to -36,0 VDC = worst case)

ILOADmax @ 36 V

ILOADnom @ 48 V

PBBU = PLOAD + Cable loss

g In case additional losses exist (for example PDU) they must be taken in toaccount in calculation!

Conductors maximum current and Circuit protection

Table 25 Conductors maximum current and circuit protection

Conductorsize

Maximumfuse size *

Maximumconductorcurrent

6 mm2 40 A 46 A

10 mm2 50 A 63 A

16 mm2 63 A 85 A

25 mm2 100 A 112 A

35 mm2 125 A 138 A

50 mm2 150 A 168 A

* Cable short circuit current is limiting maxi-mum length! Site designer is responsible tocalculate and select proper breaker size.

Cable maximum currents:(for more information, see IEC 60364-5-52, Annex A and B)

• Table B.52.1 – Installation reference methods forming basis of tabulated current-carrying capacities (for this calculation). Used Installation method C: Single core ormulticore cable on a wooden wall.

• Table B.52.2 – Current carrying capacities in amperes for methods of installation inTable B.52.1


38 DN0951839 Issue: 01A

Circuit protection:(For more information, see IEC 60364-4-43, Clauses 433 and 434)Multiple factors effect the Definition of circuit protection together with selected cable andtherefore has to be analyzed case by case. Following rules are to be fulfilled:

Where:IB: designed circuit current

IN: rated current of protective device

IZ: continuos current carrying capacity of cable

I2: current ensuring effective operation in the conventional time of the protective device

IT: maximum loading of a circuit according to standard

C1, C2,...: Correction factors depending of installation circumstances

g Note: Cable short circuit current is limiting maximum length!

EXAMPLE:


Issue: 01A DN0951839 39

Figure 8 Example DC Power Feeder Graph

• For 1000W load maximum cable length is 125m (in ambient 70ºC).• 1000W load causes 95 W power loss at 125 m long cable.• 1000W load with 125 m cable need 1095 W from power source.

g Dotted line express power loss in a cable with given load (right axis).AWG size (in brackets) is the next bigger size compared to the squaremillimeter size.

DC Power Feeder graphsFigure 9: 50 mm2 cable length as function of load,Figure 10: 35 mm2 cable length as function of load,Figure 11: 25 mm2 cable length as function of load,Figure 12: 16 mm2 cable length as function of load,Figure 13: 10 mm2 cable length as function of load, andFigure 14: 6 mm2 cable length as function of load shows recommended operational areafor different lengths cables.


40 DN0951839 Issue: 01A

Figure 9 50 mm2 cable length as function of load


Issue: 01A DN0951839 41



42 DN0951839 Issue: 01A



Issue: 01A DN0951839 43



44 DN0951839 Issue: 01A



Issue: 01A DN0951839 45


Circuit protection analysis (example):Case:

• Load current IB=40 A• Cable 25 mm2, length 100 m, installed on the wall, for the whole length• Maximum current for cable IZ=112 A• Selected Breaker 50 A, Curve B

Analysis:

• I2 for Breaker = 1.45 x IN => 1,45 x 50 A = 72.5 A• I2 for Cable = 1.45 x Iz => 1.45 x 112 A = 162 A• IEC 60364-4-43 Clause 433 Conditions are satisfactorily met:

– IB ≤ IN ≤ IZ => (40 A < 50 A < 112 A) -> OK– I2 ≤ 1.45 × IZ => (72.5 A < 1.45 x 112 A) -> OK

• Short circuit analysis:Calculated Short circuit current for 100 m Cable @ 70°C is 275 A=> 5.5 x IN => Provides disconnect in less than 0.2 s


46 DN0951839 Issue: 01A

6.3.3 DC cabling principles and shieldingThe NSN recommended DC feeder cable type is MCCMK or MCMK shielded cable. Anequivalent locally supplied DC cable might be used. Make sure that both ends of theconnection to a Flexi RF Module or System Module are IP65-protected.DC cable extension:

• There is an additional NSN IP55 2 m DC cable in the FSEC sales package. Bycutting both cables in one end and using IP55 protection to both the RF Module andSystem Module they can be used for extending the DC cable distance.

• A long DC cable needs to be shielded and grounded.• Connection of the long DC cable and NSN IP55 cable is recommended to be done in

an IP55 outdoor weather protected space, for example in Flexi External OVP box(FSEC).

• The FSEC clamping range is from 19 mm to 28 mm DC cable diameters.

t If the diameter of the cable is smaller than 19 mm (0.75 in.), use either self-fusing tape or heat-shrinkable tube to increase the cable diameter to 20mm-21mm (0.79-0.83 in.) to fulfil the IP67 requirement. The distance between theexpansion and the stripped part of the cable must be at least 10 cm (4 in.).

Table 26 NSN requirements for a shielded, locally sourced DC cable (3U RFModule), T=20ºC (68ºF)

Cable type

mm2

R (Ohm/km)

L (mH/km)

Shieldedtwisted pair

10 1.83 -

16 1.15 0.3

25 0.727 0.26

35 0.524 0.24

g In feederless and distributed site installations, Ohm's law cannot be appliedalone because inductance must also be taken into account.

6.4 Pole installation requirementsThe optional pole mounting kits VMPB and FPKA/FPKC enable Flexi Multiradio BTSinstallation on a pole 60-300 mm in diameter (60-120 mm (2.4-4.7 in.) with the FPKA and60-300 mm (2.4-11.8 in.) with the FPKC/VMPB). Up to four 3U modules can be fitted oneither pole mounting kit, and up to three Remote Radio Heads can be fitted on oneFPKA.

• Up to four 3U modules can be fitted on VMPB and FPKA/FPKC.• Up to three Remote Radio Heads can be fitted on one FPKA.• Up to two 2x60 W RRHs can be installed with an FMFA on the same FPKA. Only one

2x40 W RRH can be installed with an FMFA on the same FPKA.• A 2x60 W RRH can be installed next to an FMFA on an FPKA. A 2x40 W RRH

cannot be installed next to an FMFA on an FPKA.


Issue: 01A DN0951839 47

• If there is an FMFA installed on the pole mounting kit, RRH can be installed next toFMFA.

• If two FMFAs are installed on a pole mounting kit, RRH can be installed next toFMFA.

f Excess torsion damages the casings. In wall and pole installation, do not installmore than two modules per plinth.

g Modules installed outdoors can be left non-operational for a maximum of oneweek. The fluctuation of temperature during one day can be 30°C (86°F) at themaximum.

When installing modules on a pole, make sure that the pole at the BTS site is strongenough to withstand the weight of the BTS, to meet earthquake requirement TelcordiaGR-63 core Zone 4, and the wind load requirement.

Figure 15 Wind load calculations, side view

DN7083024

When the wind area is as in the Wind load calculations, side view figure, the area valueused for wind load calculations is 0.33 m2.


48 DN0951839 Issue: 01A

Figure 16 Wind load calculations, front view

4 3 1 2

DN7083036

When the wind area is as in the Figure 16: Wind load calculations, front view, the areafor wind load calculations depends on the number of installed modules. For moreinformation, see Table 27: Area for wind load calculations.

Table 27 Area for wind load calculations

Number of modules

Area

1 0.12 m2

2 0.18 m2

3 0.30 m2

4 0.36 m2

Flexi Mounting Shield 6U (FMSA)

Table 28 Area for wind load calculations (FMSA)

Mounting shield

Area

FMSA 0.45 m2

6.5 Floor installation requirementsSee Figure 17: Anchoring the plinth on the floor andFigure 18: Anchoring the plinth on base with maintenance space in the back for floorinstallation requirements. Option A is for stack configuration.


Issue: 01A DN0951839 49

Figure 17 Anchoring the plinth on the floor


50 DN0951839 Issue: 01A

Figure 18 Anchoring the plinth on base with maintenance space in the back

6.6 Wall installation requirementsThe optional mounting kit (FMFA) enables Flexi Multiradio BTS 3U module installation ona wall. There is a separate wall mounting kit available for the Remote Radio Head.The following requirements must be met and inspected by a qualified person beforemounting the BTS:

• It must be ensured that the installation wall is strong enough to bear the weight of theBTS in any condition.

• The wall must meet the earthquake requirement Telcordia GR-63 CORE (onlyapplicable in earthquake areas).

• The 3U module fixing screws (4 pcs) and module casing must be tightened to 5 Nmto meet the earthquake requirement Telcordia GR-63 CORE, Vibrationalrequirements for earthquake Zone 4.

• The maximum number of 3U modules per plinth is two.• 3U modules must be installed in horizontal alignment, cabling direction up and down.• 3U module bottoms must be installed facing the wall.• For the Remote Radio Head, only vertical mounting is allowed.• It is not recommended to install Remote Radio Head modules inside an enclosed

space without proper ventilation or climate control, as cooling is done throughconvection method.

6.7 Module clearancesThe minimum clearances around the modules are listed inTable 29: Required minimum clearances.


Issue: 01A DN0951839 51

Table 29 Required minimum clearances

Property

Value

Front space 600 mm (23.6 in. front maintenancespace)

Back space 40 mm (1.6 in. intake air space)200 mm (7.9 in. to remove back cover andchange fan)

Top space 30 mm (1.2 in.)

Space on both sides 75 mm (3.0 in.) with front covers

Space on both sides (if two base stationsare installed side by side on floor or wall)

100 mm (3.9 in.)

t Fans can also be changed without minimum clearances, with no back access,but this might need switching off some units in addition to the faulty module.

6.8 Remote Radio Head clearancesFigure 19: Minimum RRH clearances for cooling purposes shows the minimumclearances for cooling purposes.The minimum front space clearance for maintenance purposes is 900 mm (35.43 in.).Side space clearance is 10 mm (0.39 in.).

Figure 19 Minimum RRH clearances for cooling purposes

WH

D

1000�mm(39.37�in.)

10�mm(0.39�in.)

side�viewfront�view

10�mm(0.39�in.)

1000�mm(39.37�in.)

25�mm(0.98�in.)

H is module height excluding the mounting brackets.D is the module depth including themounting brackets.It is not recommended to install RRH modules inside an enclosed space without properventilation or climate control.

g For proper cooling, it is not recommended to vertically align RRHs with lessthan 1 m top or bottom clearance. Staggered mounting is preferred. Verticalalignment is never allowed in enclosed spaces.


52 DN0951839 Issue: 01A

6.9 FPAD clearancesFigure 19: Minimum RRH clearances for cooling purposes shows the minimumclearances for cooling purposes.

Figure 20 FPAD clearances for cooling purposes

WH

D

>120�mm(4.72�in.)

>20�mm(0.79�in.)

side�viewfront�view

>20�mm(0.79�in.)

>50�mm(1.97�in.)

Noeffect

H is module height excluding the mounting brackets.D is the module depth including themounting brackets.

g FPAD must be installed in vertical position in order to allow efficient naturalconvection cooling. Staggered mounting is preferred. Vertical alignment is neverallowed in enclosed spaces.

6.10 Flexi Cabinet for Indoor (FCIA) clearances andanchoring holesSee Cabinet clearances, Clearances around FCIA,FCIA fixing points, minimum clearances, andFCIA fixing points with maintenance space in the back for required clearances aroundFlexi Cabinet for Indoor (FCIA).

Table 30 Cabinet clearances

Property

Required clearance

Front of the cabinet 900 mm (35.4 in.)

Behind the cabinet 50 mm (2.0 in.)

Behind the cabinet (with maintenancespace in the back) 1)

500 mm (19.7 in.) with side access

Space on the door hinges side of the cabi-net

50 mm (2.0 in.)

Door swing radius 597 mm (23.5 in).

Above the cabinet 300 mm (11.8 in.)


Issue: 01A DN0951839 53

fleximrwbts_inst_fcia-0900d805809f6752.pdf




1) For maintenance space in the back, side access of 500 mm (19.7 in.) is also needed.The floor must be level. The level tolerance is ± 5 mm (0.19 in.) for the base areaimmediately under the cabinet.A 50 mm (2.0 in.) backstop is included in the cabinet delivery. The clearance behind thecabinet is measured from the back wall of the cabinet.When installing 3rd party 19" rack equipment in the FCIA, the distance from the rackfixing space to the inner surface of the door must be 102.5 mm (4.0 in.).For the dimensions of the FCIA cabinet, see Flexi Cabinet for Indoor (FCIA) dimensionsand weight.

Figure 21 Clearances around FCIA

Figure 22 FCIA fixing points, minimum clearances


54 DN0951839 Issue: 01A

Figure 23 FCIA fixing points with maintenance space in the back

Anchoring holesThe cabinet is anchored to the ground using four M10 or M12 bolts. The optionalmounting holes are available for backup purposes, in case the official holes cannot beused for some reason.

6.11 Flexi Cabinet for Outdoor (FCOA) clearances andanchoring holesSee Table 31: Cabinet clearances andFigure 24: Cabinet clearances and anchoring holes for required clearances around FlexiCabinet for Outdoor (FCOA).

Table 31 Cabinet clearances

Property

Required clearance


Behind the cabinet (one cabinet installed) 0 mm/in.

Behind the cabinet (several cabinet in-stalled in a row)

100 mm (4 in.)

Behind the cabinet (with back access) 500 mm (19.7 in.)


Issue: 01A DN0951839 55

Table 31 Cabinet clearances (Cont.)

Property

Required clearance

Behind the cabinet (with air filter and ca-bles routed through back)

1000 mm (39.3 in.)

Behind the cabinet (with air filter and ca-bles routed through side or through bot-tom)

450 mm (17.7 in.)

Door opening direction 50 mm (2 in.)

Door opening with wind plate 80 mm (3.2 in.)


The floor must be level. Requirements for the base are as follows:

• Aberration for plane = 1 mm (0.04 in.)• Maximum inclination = 2 mm/metre

When installing 3rd party 19" rack equipment in the FCOA, the distance from the rackfixing space to the inner surface of the door must be 135 mm (5.3 in.).For the dimensions of the FCOA cabinet, see Flexi Cabinet for Outdoor (FCOA)dimensions and weight.

Figure 24 Cabinet clearances and anchoring holes

Anchoring holesThe cabinet is anchored to the ground using four M12 bolts. Optional four holes areavailable for backup purposes, in case the actual holes cannot be used for some reason.


56 DN0951839 Issue: 01A

Cable entryFor the location of the FCOA cabinet bottom cable entry, seeFigure 25: FCOA cabinet bottom cable entry.

Figure 25 FCOA cabinet bottom cable entry

6.12 Flexi Mounting Shield (FMSA and FMSB)clearances and anchoring holesSee Table 32: FMSA clearances and Table 33: FMSB clearances for required clearancesaround Flexi Mounting Shields (FMSA/FMSB).

Table 32 FMSA clearances

Property

Required clearance



Behind the cabinet (with maintenancespace in the back)

200 mm (7.9 in.)

Space for cables outside the cabinet(above/underneath/on the side)

150 mm (5.9 in.)

Table 33 FMSB clearances

Property

Required clearance



Behind the cabinet (with maintenancespace in the back)

200 mm (7.9 in.)

Space for cables outside the cabinet (onthe side)

150 mm (5.9 in.)


Issue: 01A DN0951839 57

Table 33 FMSB clearances (Cont.)

Property

Required clearance


See Figure 26: FMSA fixing points and Figure 27: FMSB fixing points for the fixing pointlocations.


Figure 26 FMSA fixing points

DN70335066

Lower�bracket

Upper�bracket

623�mm�(24.5�in)

185�mm(7.3�in)

185�mm(7.3�in)

118.5�mm(4.7�in)

558.5�m

m�(22.0�in)

688�m

m�(26.3�in)

fixing�pointso�10�mm

40�mm (1.6�in)for�air�intake

200�mm (7.9�in)for�maintenancefrom�the�back


58 DN0951839 Issue: 01A

Figure 27 FMSB fixing points

DN70316252

Front�side

359�mm�(14.1

in)

106.5�mm(4.2�in)

149.5�mm(5.9�in)

300�mm (11.8�in)

40�mm

(1.6�in)

for�air�intake

fixing�pointso�18�mm

200�mm

(7.9�in)

for�maintenance

from�the�back


Issue: 01A DN0951839 59

7 Power requirements

7.1 Site earth and BTS grounding requirementsBTS site grounding is divided into two contexts: site earthing and site equipmentgrounding.To protect the BTS from damaging over voltages through antenna equipment,communication cables, or power supply lines, grounding cabling must be planned andinstalled before the installation of the base station. To avoid interference, it isrecommended that large grounding systems are designed case-specifically.The function of the site earth is to convoy the lethal and hazardous voltages and electriccurrents from the site main grounding point (main grounding busbar) to the earth.The impedance of the earth connection should be as low as possible:

• The earthing (grounding) resistance target of the BTS site is ≤10 Ω. If it is notpossible to reach this target because of the difficult conditions, for instance in areassuch as solid rocks or dry desert, the earthing (grounding) resistance can be max.150 Ω.

• The cross-sectional area of the Main Earthing Conductor should not be smaller thanlive (L) and neutral never less than 6 mm2 (10 AWG), recommended size is 16 mm2

(6 AWG). For NEBS installations, 16 mm2 (6 AWG) or higher is required.

Site equipment grounding is required to ensure personnel safety and to avoidelectrostatic discharge which can damage the equipment.An AC power plug with a protective earth (PE) connection is not sufficient. Groundingmust have a fixed, non-removable connection.BTS DC power input must be floating -48 VDC, or positive grounded. Note that the fuseprotection does not work with negative grounding. In a +24 VDC system, a Flexi PowerDC/DC Module (FPDA) or a similar safety-approved DC/DC converter must be used toconvert the negative grounded +24 VDC to floating -48 VDC.

g Follow local requirements for earthing (grounding). The principles andrequirements vary in different countries.

Observe the following recommendations when planning the BTS grounding:

• Grounding cable cross-section has to be more than any of AC or DC power feedingcable cross-section.

• The grounding cable is connected with screws to the BTS mains grounding point.• The grounding cable must be connected to a main grounding busbar with a minimum

of 6 mm2 (10 AWG) grounding cable.• Route the grounding cables as directly as possible from the equipment to the

grounding point. Avoid unnecessary loops and sharp bending of the grounding cable.The grounding cables should not be run parallel with power cables.

• The external antenna feeders must also be grounded according to the locallegislation if the antennas are exposed to lightning.

• The BTS is suitable for installation in a Common Bonding Network (CBN), IsolatedBonding Network (IBN) or both.

Power requirements Flexi Multiradio BTS LTE Installation Site Requirements

60 DN0951839 Issue: 01A

7.2 Mains power requirements

f WARNING!Danger of lethal voltages.Make sure that the mains power breaker is off, and that the cabinet is properlyearthed (grounded), before connecting or removing any mains power supplycables from the BTS cabinet.At the site there must be a main switch for disconnecting the BTS mains power. Thedisconnecting device should disconnect both input supply poles simultaneously.

Table 34 Permitted operating voltage

Property

Nominal operating voltage

Permitted operating voltage

DC voltage 48 VDC 40.5 to 57.0 VDC

AC voltage with op-tional FPMA

200 - 240 VAC 184 to 276 VAC (45 - 66 Hz)

DC voltage with op-tional DC Module

24 VDC 18 to 32 VDC

DC return connections can be isolated DC return (DC-I) or common DC return (DC-C).Check the power consumption. If the power demand exceeds 30A and you use a 30Asource such as an integrated power distribution unit (PDU) or System Module PowerOutput port with 30A output capability, then it is recommended to use the dual powercable FPCA (472806A) with the PDU or System Module Power Output port.See Cabling Flexi Multiradio BTS LTE for instructions on how to connect the dual powercable.

g Note that there are some variations in input voltages between different RFvariants. For more information, seeRF Module and Remote Radio Head power requirements inFlexi Multiradio BTS LTE RF Module and Remote Radio Head Description.

7.2.1 Circuit breakersGeneral guidelines for circuit breakers are provided below. The maximum powerconsumption in amps is smaller than the circuit breaker in amps, and the circuit breakeris smaller than the allowed current capacity of the cable in amps.

• Slow D type (10 In up to 20 In) is recommended to avoid tripping in rush current orminor lightning surges.

• Circuit breaker interrupt rating is recommended for exceeding maximum short circuit(breaking) capacity expected from the power source.

• Voltage rating for overvoltage protection device should also be considered.• It is recommended to calculate circuit breaker values based on maximum power

input for each RF/RRH Module with 10% margin added. This accounts for worst caseoperating conditions, future expansion and/or MHA/RETs.Always follow local regulations.

Installations with the FSMF frontpanel DC interface port (without optional FPFD PDUinstalled) require a dedicated fuse. The fuse size should be between 20 A and 30 A.

Flexi Multiradio BTS LTE Installation Site Requirements Power requirements

Issue: 01A DN0951839 61

7.2.2 FPMA Battery backup timesFlexi BTS uses 48 VDC power. In a BTS site with AC feed only, Flexi Power Module(FPMA) is required to convert AC to DC. Flexi Power Module (FPMA) consists ofmechanics, AC terminal, and four slots for AC/DC sub-module (FPAA) or battery sub-module (FPBA/B).Two FPMAs can be installed in a stack to support FPAA and FPBA/B operating inparallel.Table 35: Battery backup times shows the battery backup times depending onconfiguration and load scenario.

Table 35 Battery backup times

FPMA

Estimated typical battery backup time in 23°C for new battery [min.]

Single FPMA

Dual FPMA (stacked)

Rectifyingcapacity [W]

FPAA(rectifier)

1 x FPBA/B(battery)

2 x FPBA/B(battery)

3 x FPBA/B(battery)

4 x FPBA/B(battery)

5 x FPBA/B(battery)

6 x FPBA/B(battery)

250 1 32 64 96 128 160 192

500 1 16 32 48 64 80 96

750 1 11 22 33 44 55 66

1000 1 8 16 24 32 40 48

1250 2 - 13 19 26 32 38

1500 2 - 11 16 21 27 32

1750 2 - 9 14 18 23 27

2000 2 - 8 12 16 20 24

2250 3 - - 11 14 18 -

2500 3 - - 10 13 16 -

2750 3 - - 9 12 15 -

3000 3 - - 8 11 13 -

3250 4 - - - 10 - -

3500 4 - - - 9 - -

3750 4 - - - 9 - -

4000 4 - - - 8 - -


62 DN0951839 Issue: 01A

g FPBA/FPBB maximum charge and heating power is 100 W per battery.The “per battery” charge power needs to be taken into account and subtractedfrom the available rectifying capacity, thus reducing the power available for theBTS.In redundant (n+1) configurations an extra FPAA provides rectifying redundancyand, additionally, takes care of battery charging.

7.2.3 FPMA AC wiring and Fuse requirements

Table 36 Fuse and wire cross section requirements single phase AC

# of FPAA in FPMA Fuse sieze (A) for singlephase 240 Vac

Wire cross section

1 6 3 x 1.5 mm2

2 10 3 x 1.5 mm2

3 16 3 x 2.5 mm2

4 20 3 x 4 mm2

Table 37 Fuse and wire cross section requirements three phase AC

FPMA

Fuse size (A) for 3 phase 240 Vac

Wire cross section

FPAA 1 1st phase 10 5 x 1.5 mm2

FPAA 2

FPAA 3 2nd phase 6

FPAA 4 3rd phase 6

Table 38 Fuse and wire cross section requirements three phase AC for dual FPMA

dual FPMA #1

dual FPMA #2

Fuse size (A) dual FPMA for 3phase 240 Vac

Wire crosssection

FPAA 1 FPAA 5 1st phase 20 5 x 4 mm2

FPAA 2 FPAA 6

FPAA 3 FPAA 7 2nd phase 10

FPAA 4 FPAA 8 3rd phase 10


Issue: 01A DN0951839 63

7.3 RF Module and RRH DC cable requirements7.3.1 DC cable requirements for 80 W RF Modules

The DC cable is not included in the 80 W RF Module delivery. 48 VDC power can be fedfrom a System Module or directly from an external power source.

• Only single power cable is needed with FXCB/FXDB regardless of System Module.• If FXEB/FXFC/FRGT is used with FSMC/D/E or FPFC/FPFD (30A PDU), then the

rules in Table 39: DC Cable Requirements for 80 W RF Modules apply:

Table 39 DC Cable Requirements for 80 W RF Modules

Total Configuredoutput power

RET/MHA

Minimumvoltage

Power Cable

<= 180 W Any Any Single

> 180 W Yes < 46.5 Dual

> 180 W Yes >= 46.5 Single

> 180 W No < 41.5 Dual

> 180 W No >= 41.5 Single

Requirements if power is supplied from an external sourceThe following requirements apply if power is fed from an external power source:

• The allowed diameter of shielded or jacketed cables is 6-25 mm (0.24-1 in.).• The allowed cross section of individual DC wires is 6-25 mm2 (10-4 AWG) at the DC

terminal. It is recommended that 25 mm2 (4 AWG) wires are capped to avoid loosestrands. If thicker DC wires are required, then an FSEC/FSES or other IP65 DCdistribution box is required to reduce the cable thickness at the module.

• Recommended DC cable lengths, thicknesses, and type are provided in the sectionFeederless site and Distributed site solution requirements.

• The DC connector has three screw terminals. The outer terminals are for (+) and (-)wires. The middle terminal is for grounding the shielded DC cable braid.

7.3.2 DC cable requirements for 6TX 40W RF ModulesThe DC cable is not included in the 6TX 40 W RF Module delivery. 48 VDC power canbe fed from an external power source.

• If 6TX 40 W RFM is used with FSME or FPFC/FPFD (30 A PDU), then the rules inTable 40: DC cable requirements for 6TX 40W FRMC, FRPA, FRPB Modules andTable 41: DC cable requirements for 6TX 40W FRHC, FRHF Modules apply:


64 DN0951839 Issue: 01A

Table 40 DC cable requirements for 6TX 40W FRMC, FRPA, FRPB Modules


RET/MHA

Minimum DCVoltage voltage (atFRM input)

Power Cable

<= 180 W No Any Single

<= 180 W Yes Any Single

> 180 W Yes <44.3 Dual

> 180 W Yes >44.3 Single

> 180 W No <41.3 Dual

> 180 W No >41.3 Single

Table 41 DC cable requirements for 6TX 40W FRHC, FRHF Modules


RET/MHA

Minimum DCVoltage voltage (atFRM input)

Power Cable

<= 180 W No Any Single

<= 180 W Yes Any Single

> 180 W Yes <48.2 Dual

> 180 W Yes >48.2 Single

> 180 W No <45.2 Dual

> 180 W No >45.2 Single

Requirements if power is supplied from an external sourceThe following requirements apply if power is fed from an external power source:

• The allowed diameter of shielded or jacketed cables is 6-25 mm (0.24-1 in.).• The allowed cross section of individual DC wires is 6-25 mm2 (10-4 AWG) at the DC

terminal. It is recommended that 25 mm2 (4 AWG) wires are capped to avoid loosestrands. If thicker DC wires are required, then an FSEC/FSES or other IP65 DCdistribution box is required to reduce the cable thickness at the module.

• Recommended DC cable lengths, thicknesses, and type are provided in the sectionFeederless site and Distributed site solution requirements.

• The DC connector has three screw terminals. The outer terminals are for (+) and (-)wires. The middle terminal is for grounding the shielded DC cable braid.


Issue: 01A DN0951839 65

7.4 BTS power consumption7.4.1 Power consumption of various FDD Flexi Multiradio BTS

configurationsSeeTable 42: Typical and maximum power consumptions for Flexi Multiradio BTSconfigurations in LTE FDD for Flexi Multiradio BTS power consumption values at 48 VDCinput in 23°C.For the FSME system module with FTIB transmission sub-module, add 110 W tothe given values.For the alternative transmission sub-module FTLB, add 25 W in addition to thegiven values.

Table 42 Typical and maximum power consumptions for Flexi Multiradio BTSconfigurations in LTE FDD

Configuration

RF outputpower persector[W]

Estimated typical powerconsumption [W] at 48 VDCinput in 23 °C

50% RF load

100% RFload

1+1+1 SIMO 1TX 2RX 2600MHzFSMF + 3-sector RF Module

60 931 1255


60 804 1034


80 809 1183


60 794 1068

1+1+1 MIMO 2TX 2RX 2600MHzFSMF + 3-sector RF Module

60+60 1737 2385


60+60 1483 1943


80+80 1493 2241


60+60 1463 2011

1+1+1 MIMO 2TX 2RX 2600MHzFSMF + 2TX RRH Module

40+40 1076 1442


66 DN0951839 Issue: 01A

Table 42 Typical and maximum power consumptions for Flexi Multiradio BTSconfigurations in LTE FDD (Cont.)

Configuration

RF outputpower persector[W]

Estimated typical powerconsumption [W] at 48 VDCinput in 23 °C

50% RF load

100% RFload

1+1+1 MIMO 2TX 2RX 1800MHzFSMF + 2-sector RRH Module

40+40 1034 1316


60+60 1265 1721


40+40 947 1244

See the following table for Flexi Multiradio BTS power consumption values at 48 VDCinput in 23°C.Basic typical conditions:

• GbE Ethernet transport used• room temperature 23°C• no MHA power feeding included• no antenna tilting power feeding included

Flexi BTS site maximum power consumption consists of power feed to MHA + antennatilt. Up to 150 W higher power consumption can exist in extreme conditions and in BTSoutput power overdrive situations. In possible short circuit cases (for instance, antennaline), power consumption can momentarily be higher.

g The tolerance of the power consumption values is +/-10%.

The values do not include the optional cabinet (FCOA) and optional site support (FCSA)power consumption.The estimated maximum heat load can be assumed to be the same as the powerconsumption values.For the power consumption of Flexi Outdoor Cabinet fans FCFA, FCSA, and FCOS, seeTable 43: Power consumption of Flexi Outdoor Cabinet fans FCFA, FCSA, and FCOS.

Table 43 Power consumption of Flexi Outdoor Cabinet fans FCFA, FCSA, andFCOS

FCFA

FCSA

FCOS

60 W clean 34 W at 23 °C 5 W minimum at 23 °C

100 W typical 94 W at 55 °C -

180 W dirty - 55 W at 55 °C


Issue: 01A DN0951839 67

The total power consumption of Flexi Cabinet Site Support Module depends on whichthird-party configuration has been installed in the line terminal equipment space.

7.4.2 Power consumption of TDD Flexi RF Modules and RRHsconfigurations

Table 44 Typical power consumptions for Flexi Multiradio BTS configurations in LTETDD

Configuration

# ofcells

RF Power persector [W]

Estimated typicalpower consumption[W] at 48 VDC inputin 23°C, 68% TXduty

1+1+1 MIMO 2TX 2300MHzFSMF+FBBA + 6TX RF Module

3 10+10 518

1+1+1+1+1+1 MIMO 2TX 2300MHzFSMF+2xFBBA + 2x6TX RF Module

6 10+10 911

1+1+1 MIMO 4TX 2300MHzFSMF+FBBA + 2x6TX RF Module

3 10+10+10+10 826


6 2x5+2x5+2x5+2x5 826


3 10+10 586


6 2x5+2x5 586


6 2x5+2x5+2x5+2x5 1047

2+2+2 MIMO 2TX 2300MHzFSMF+2xFBBA + 3x8TX RF Module

6 2x5+2x5+2x5+2x5 1423

1+1+1 MIMO 8TX 2600MHzFSMF+2xFBBA + 3x8TX RF Module

3 10+10+10+10+10+10+10+10

1423

2+2+2 MIMO 8TX 2600MHz3x(FSMF+FBBA + 3x8TX RF Module)

6 2x5+2x5+2x5+2x5+2x5+2x5+2x5+2x5

1758

1+1+1 MIMO 4TX 2300MHzFSMF+FBBA + 3x4TX RRH Module

3 30+30+30+30 1689

1+1+1+1+1+1 MIMO 4TX 2300MHzFSMF+2xFBBA + 6x4TX RRH Module

6 30+30+30+30 3253

2+2+2 MIMO 4TX 2300MHzFSMF+FBBA + 3x4TX RRH Module

6 2x15+2x15+2x15+2x15

1689


68 DN0951839 Issue: 01A

Table 44 Typical power consumptions for Flexi Multiradio BTS configurations in LTETDD (Cont.)

Configuration

# ofcells

RF Power persector [W]

Estimated typicalpower consumption[W] at 48 VDC inputin 23°C, 68% TXduty

2+2+2+2 MIMO 4TX 2300MHz2x(FSMF+FBBA) + 4x4TX RRH Module

8 2x15+2x15+2x15+2x15

2392

7.5 Lightning surge requirementsAC power port

Table 45 Switching and lightning transient requirements for AC power port

Spec

Method

Requirement

ETSI EN 301 489-1 EN 61000-4-5 ±2 kV line to ground (com-mon), pulse 1.2/50µs,Rs=(2Ω+ 10Ω)

±1.0 kV line to line (differ-ential), pulse 1.2/50µs(Rs=2Ω)

GR-1089 GR-1089 ±2 kV each phase conduc-tor to green-wire ground,pulse 1.2/50µs (Rs=2Ω)

±2 kV each phase conduc-tor to neutral conductor,pulse 1.2/50µs (Rs=2Ω)

±2 kV between neutral con-ductor and green-wireground, pulse 1.2/50µs(Rs=2Ω)

DC power port

Table 46 Surge immunity requirements for DC power port

Spec

Method

Requirement

- EN 61000-4-5 ±1 kV line to ground, pulse1.2/50µs (Rs=2Ω)

±0,5 kV line to line, pulse1.2/50µs (Rs=2Ω)


Issue: 01A DN0951839 69

RF antenna ports

Table 47 Lightning surge requirements for antenna ports

Spec

Method

Requirements

EN 61000-4-5 ±50 V…±500 V 1.2/50µs(Rs=2Ω), pulses at the cen-ter pin of the antenna con-nector

IEC 62305-4 ±3 kA, 10/350µs pulses tothe center pin of the anten-na connector

IEC 62305-4 ±20 kA, 10/350µs pulses tothe shield of the antennaconnector

Telecom ports

Table 48 Lightning surge requirements for telecom ports

Spec

Method

Requirements

ETSI EN 301 489-1 EN61000-4-5 ±1 kV line to ground, pulse1.2/50µs, Rs = 2Ω forshielded I/O and communi-cation lines

EN61000-4-5 ±4 kV line to ground, pulse1.2/50µs, Rs = 2Ω forshielded I/O and communi-cation lines

Use only tested IP65 class cables with seals provided by NSN.The cable shielding/drain wire must always be connected to the relevant ground pinsat the Digital Distribution Frame (DDF) or Network Termination Unit (NTU)/Network In-terface Unit (NIU) as close as possible to avoid EMC interfering effects. Make sure ad-ditional country-specific grounding regulations for transmission wiring installations arefollowed!The Flexi BTS Transmission interface is a SELV circuit and must not be directly con-nected to TNV circuits.The Flexi BTS interfaces can be connected to the telecommunication network onlythrough a Network Terminating Unit (NTU)/Network Interface Unit (NIU) that providesovervoltage protection and the required isolation.


70 DN0951839 Issue: 01A

Alarm and control ports

Table 49 Surge requirements for alarm and control ports

Spec

Method

Requirement

ITU-T K.45 ITU-T K.44 ±1kV, 10/700µs (Rs=25Ω)between center conductorsand shield±4 kV, 10/700µs (Rs=25Ω)between cable shield andground

Ethernet ports

Table 50 Lightning surge requirements for Ethernet ports

Spec

Method

Requirements

ETSI EN 301 489-1 EN61000-4-5 ±1 kV line to ground, pulse1.2/50µs, Rs = 2Ω forshielded I/O and communi-cation lines

EN61000-4-5 ±4 kV line to ground, pulse1.2/50µs, Rs = 2Ω forshielded I/O and communi-cation lines

Use only tested IP65 class cables with seals provided by NSN.The cable shielding/drain wire must always be connected to the relevant ground pinsat the Digital Distribution Frame (DDF) or Network Termination Unit (NTU)/Network In-terface Unit (NIU) as close as possible to avoid EMC interfering effects. Make sure ad-ditional country-specific grounding regulations for transmission wiring installations arefollowed!The Flexi BTS Transmission interface is a SELV circuit and must not be directly con-nected to TNV circuits.The Flexi BTS transmission interfaces can be connected to the telecommunication net-work only through a Network Terminating Unit (NTU)/Network Interface Unit (NIU) thatprovides overvoltage protection and the required isolation.

Flexi Multimode System Module (FSMF)

Spec

Method

Requirements

ETSI EN 301 489-1 Sec9.8

EN61000-4-5 4 kV between shield andground, pulse 1.2/50µs,RS=2Ω

DC power port with FSEC/FSES box (OVP box)The FSEC/FSES gives Class II (C, T2) protection for both common and differential modedisturbance. The following levels should be fulfilled:


Issue: 01A DN0951839 71

• Protection level UP (Line - Line) < 500 V (at IN, 8/20 s)• Protection level UP (Line - Ground) < 1000 V (at IN, 8/20 s)

Protection devices should fulfil following standard IEC 61643-1 and IEC 60364-4-443.Nominal voltage is -48.0 VDC according to ETSI EN 300 -132-2.

Table 51 Lightning surge requirements for FSEC/FSES

Common mode protection Class II (C, T2) requirements

Voltage protection level, UP max. 1 kV

Nominal discharge current (8/20), IN 15 kA

Max discharge current, Imax 30 kA

Response time, tA <25 ns

Differential mode Class II (C, T2) requirements

FSEC FSES

Voltage protection level, UP max. 500 V

Nominal discharge current (8/20), IN 15 kA 5 kA

Max discharge current, Imax 30 kA 6.5 kA


g Voltage should be measured from all of the output portsand it should not rise above 500 V line to line.

Flexi Power Distribution and Fuses (FPFD)FPFD should have surge voltage protection integrated on input and support the followingrequirements:

Table 52 Lightning surge requirements (DC power port) FPFD

Spec

Method

Requirements

EN61000-4-5 1 kV line to ground, pulse1.2/50µs, RS=12Ω

500V line to line, pulse1.2/50µs, RS=2Ω

g Voltage should be measured from all of the output ports and it should not riseabove 100 V line to line.

Flexi Power Distribution and Fuses (FPFC)FPFC has surge voltage protection integrated on DC input and support the followingrequirements:FPFC gives Class II (C, T2) DC input protection for both common and differential modedisturbance. The following levels should be fulfilled:


72 DN0951839 Issue: 01A

• Protection level UP (Line - Line) < 500 V (at IN, 8/20 s)• Protection level UP (Line - Ground) < 1000 V (at IN, 8/20 s)

Protection devices should fulfil following standard IEC 61643-1 and IEC 60364-4-443.Nominal voltage is -48.0 VDC according to ETSI EN 300 -132-2.

Table 53 Lightning surge requirements for FPFC

Common mode protection Class II (C, T2) requirements

Voltage protection level, UP max. 1 kV




Differential mode Class II (C, T2) requirements

Voltage protection level, UP max. 500 V




g Voltage should be measured from all of the output ports and it should not riseabove 500 V line to line.

When using FPFC, FPFC shall be plus grounded in order to provide surge protection forthe site.

Selected RF Modules

Table 54 Lightning surge requirements for selected RF Modules

RF Module

Method

Requirements

FRGP (2100) (3x60W) EN 61000-4-5 ±1 kV line to ground

FRGP_B (2100) (3x60W) OVP IEC 62305-4: Class II integrated, up to 5kA

FRGT (2100) (3x80W) OVP IEC 62305-4: Class II integrated, up to 5kA

FRHA (2600) (3x60W) EN 61000-4-5 ±1 kV line to ground

FXCA (850) (3x60W) EN 61000-4-5 ±1 kV line to ground

FXCB (850) (3x80W) OVP IEC 62305-4: Class II integrated, up to 5kA

FXDA (900) (3x60W) EN 61000-4-5 ±1 kV line to ground

FXDB (900) (3x80w) OVP IEC 62305-4: Class II integrated, up to 5kA


Issue: 01A DN0951839 73

Table 54 Lightning surge requirements for selected RF Modules (Cont.)

RF Module

Method

Requirements

FXEA (1800) (3x60W) EN 61000-4-5 ±1 kV line to ground

FXEB (1800) (3x80w) OVP IEC 62305-4: Class II integrated, up to 5kA

FXFB (1900) (3x60w) OVP IEC 62305-4: Class II integrated, up to 5kA

FXFC (1800) (3x80W) OVP IEC 62305-4: Class II integrated, up to 5kA

OVP levels assume that shielded cable is used. In case unshielded cable is used, externalOVP (FSEC/FSES) is to be used.

Selected Remote Radio Heads

Table 55 Lightning surge requirements for selected RRHs.

RRH

Method

Requirements

FHDA (900) (2x40W) OVP IEC 62305-4: Class II integrated, up to 5kA

FHDB (900) (2x60W) OVP IEC 62305-4: Class II integrated, up to 5kA

FHEA (1800) (2x40W) OVP IEC 62305-4: Class II integrated, up to 5kA

FRGQ (2100) (2x40W) OVP IEC 62305-4: Class II integrated, up to 5kA

FRHB (2600) (2x40W) OVP IEC 62305-4: Class II integrated, up to 5kA


74 DN0951839 Issue: 01A

8 Dimensions and weights

8.1 Module dimensions and weights8.1.1 RF Module dimensions and weight

The dimensions of the Radio Frequency Module are presented inTable 56: RF Module dimensions and weight.

Table 56 RF Module dimensions and weight

Property

Value

Width 1) 447/492 mm(17.6/19.4 in.)

Height 133 mm/ 3U(5.2 in.)

Depth 2) 422/560 mm(16.6/22.1 in.)

Weight 25 kg(55.1 lb)

1) Width of the casing without front covers/with front covers2) Depth of the casing without front covers/with front covers

Figure 28 3U module dimensions without covers

Flexi Multiradio BTS LTE Installation Site Requirements Dimensions and weights

Issue: 01A DN0951839 75

Figure 29 3U module dimensions with covers

Figure 30 Isometric view of the RF Module FRGT

g For isometric view of other RF Module variants, seeFlexi Multiradio BTS Radio Module and Remote Radio Head Description.

8.1.2 RRH Module dimensions and weightTable 57: Dimensions and weight of the Remote Radio Head presents the dimensionsand weights of Flexi Multiradio BTS modules.

Table 57 Dimensions and weight of the Remote Radio Head

Property

RRH Modulevariant

Height

Width

Depth

Weight

FRGQ 486 mm(19.1 in)

324 mm(12.8 in)

155 mm(6.1 in)

17 kg(37.47 lb)

Dimensions and weights Flexi Multiradio BTS LTE Installation Site Requirements

76 DN0951839 Issue: 01A

Table 57 Dimensions and weight of the Remote Radio Head (Cont.)

Property

RRH Modulevariant

Height

Width

Depth

Weight

FRGV 430 mm 361 mm 221 mm2)

(8.7 in)

13 kg(28.66 lb)

FRMB/FRHB 514 mm(20.27 in)

326 mm(12.83 in)

148 mm(5.83 in) 17.3 kg (withoutsolar shield andmountingshroud)(38.14 lb)

FRLB 400 mm(15.75 in)

400 mm(15.75 in)

150 mm(5.90 in)

27 kg (withoutsolar shield andmountingshroud)(59.52 lb)

FHCA 450 mm(17.72 in)

290 mm(11.42 in)

190 mm(7.48 in)

15 kg (withoutsolar shield andmountingshroud)(33.07 lb)

FRIG 459.5 mm(18.09 in)

400 mm(15.74 in)

145.5 / 164.5 mm(5.72 / 6.47 in)

max. 24 kg(52.91 lb)

FHDA/FHEA 579 mm (22.7in.) - (as deliv-ered, cable tiepoint recessed)733 mm (28.8in.) - (as in-stalled, cable tiepoint releaseddue to bracketsand solar shields)

358 mm (14.1 in.) 215 mm (8.4 in.) 20 kg (44 lb)

FHDB/FHEB 335.2 (13.2 in.)as deliveredwithout lowermounting bracket571 mm (22.5in.) with lowermounting bracketin the "FMFA"position

260 mm (10.2 in.) 324 mm (12.8 in.) 17.3 kg (38.1 lb)

2) 224 mm (8.81 in) with mounting brackets


Issue: 01A DN0951839 77

Table 57 Dimensions and weight of the Remote Radio Head (Cont.)

Property

RRH Modulevariant

Height

Width

Depth

Weight

621 mm (24.4in.) with lowermounting bracketin the "ALT" posi-tion

Figure 31 Isometric view of the Remote Radio Head (FRIG)


78 DN0951839 Issue: 01A

Figure 32 Isometric view of the Remote Radio Head (FHDB)

g For isometric view of other RRH Module variants, seeFlexi Multiradio BTS Radio Module and Remote Radio Head Description.

8.2 FCIA dimensions and weightTable 58: Dimensions and weight of Flexi Cabinet for Indoor (FCIA) shows thedimensions and weight of the Flexi Cabinet for Indoor (FCIA).


Issue: 01A DN0951839 79

Table 58 Dimensions and weight of Flexi Cabinet for Indoor (FCIA)

Property

Value

Height 1793 mm / 40.3U(70.59 in.)

Width 597 mm(23.50 in.)

Depth 521 mm(20.51 in.)

Weight(empty cabinet)

60.5 kg(133 lb)

Free space for modules 36 U

8.3 Flexi Cabinet for Outdoor (FCOA) dimensions andweightTable 59: Dimensions and weight of Flexi Cabinet for Outdoor (FCOA) shows thedimensions and weight of Flexi Cabinet for Outdoor (FCOA).

Table 59 Dimensions and weight of Flexi Cabinet for Outdoor (FCOA)

Property

Value

Height 1550 mm(61 in.)

Width 770 mm(30.3 in.)

Depth 770 mm(30.3 in.)

Depth with air filter 930 mm(36.6 in.)

Depth with air filter and wind plate 1020 mm(40.2 in.)

Weight(empty cabinet)

63.2 kg(139.3 lb)

Weight(with air filter and wind plate)

97.2 kg(214.3 lb)

Total weight 358 kg


80 DN0951839 Issue: 01A

Table 59 Dimensions and weight of Flexi Cabinet for Outdoor (FCOA) (Cont.)

Property

Value

(fully equipped with batteries) (789 lb)

Free space for modules 40 U(30 U horizontally + 5 U + 5 U vertically

Free space for modules(site support and batteries installed)

21 U(16 U horizontally + 5 U vertically)

8.4 Flexi Mounting Shield (FMSA and FMSB)dimensions and weightsTable 60: Dimensions and weight of Flexi Mounting Shield 6U (FMSA) andTable 61: Dimensions and weight of Flexi Mounting Shield 18U (FMSB) shows thedimensions and weight of the Flexi Mounting Shields (FMSA/FMSB).

Table 60 Dimensions and weight of Flexi Mounting Shield 6U (FMSA)

Property

Value

Height 605 mm(23.8 in.)



Weight (empty) 15.1 kg(33.3 lb)

Free space for modules 6U

Table 61 Dimensions and weight of Flexi Mounting Shield 18U (FMSB)

Property

Value

Height 930 mm(36.6 in.)


Depth 620 mm


Issue: 01A DN0951839 81

Table 61 Dimensions and weight of Flexi Mounting Shield 18U (FMSB) (Cont.)

Property

Value

(24.4 in.)

Weight (empty) 26 kg(57.3 lb)

Free space for modules 18U

8.5 Flexi Power Rectifier (FPRx) dimensionsTable 62: Flexi Power Rectifier FPRA shows the dimensions of the Flexi Power Rectifier(FPRx).

Table 62 Flexi Power Rectifier FPRA

Property

Value

Height 128.7 mm(5.1 in.)




82 DN0951839 Issue: 01A

9 Citytalk cabinet requirementsBoth Flexi Multiradio BTS and Flexi Multiradio 10 Base Station modules can be installedinto a Citytalk cabinet by using the Talk Conversion Kit (EMIB). The inner parts of theCitytalk cabinet must be stripped out before Flexi BTS modules are installed, and certainparts of the Citytalk cabinet is to be replaced with new parts belonging to the TalkConversion Kit. Standard Citytalk installation tools can be used for stripping out thecabinet.The Citytalk cabinet retains its outline dimensions and the mechanical shape whenmodified with the Talk Conversion Kit. The Flexi BTS within the modified cabinet fulfillsthe Flexi BTS temperature and environmental requirements.


Flexi Multiradio BTS LTE Installation Site Requirements Citytalk cabinet requirements

Issue: 01A DN0951839 83

10 Third-party cabinet requirementsBasic requirements for a third-party cabinetThe basic requirements for a third-party cabinet are the following:

• 19-inch cabinet with supporting side trays or plates (must meet the IEC 60297Dimensions of mechanical structures of the 482.6 mm (19 in.) series standard)

f In cabinet installations, Flexi Multiradio module casings are needed toensure proper cooling and support for the module cores. When installingmodules in a third-party cabinet, do not remove the module cores from theircasings.

• Minimum depth 600 mm (23.6 in.)• Rear air intake (Make sure that input air is evenly distributed between the installed

modules.)• Front exhaust• Proper cable routing• The recommended constant ambient temperature for modules installed inside the

cabinet must be -35ºC - +45ºC (-31ºF - +113ºF)• If the installation is a stand-alone rack (and no cabinet), NSN requires that the front

and the rear covers are used for safety purposes. A casing is required to mount therear cover.

For more information on the third-party cabinet installations, seeInstalling modules inside a third-party cabinet in the Installing Flexi Multiradio BaseStation and Flexi Multiradio 10 Base Station Modules in Cabinets document.

Requirements for Flexi Multiradio BTS and Flexi Multiradio 10 BaseStation module level cooling in a third-party cabinetFlexi BTS module is installed in the cabinet without the rear-side and front-side plasticcovers. The air volume flow requirement and pressure drop caused by the cabinet backwall and front wall (door) for a single Flexi BTS module vary with module version, seeTable 63: Air volume flow and cabinet pressure drop. The module cooling fans’ minimumdistance to any obstacle in the rear side of the cabinet is 40 mm (1.6 in.). When planningsite cooling, BTS power consumption must be taken into consideration.

Table 63 Air volume flow and cabinet pressure drop

Variant Air Volume Flow Cabinet Pressure Drop [5]

FSMx, RF Module Release 1,RF Module Release 2[1], RFModule Release 3[2]

140 m3/h 25 Pa

ESMB/C, RF Module Release2[3]

200 m3/h 51 Pa

RF Module Release 3[4] 210 m3/h 56 Pa

[1] All RF Module Release 2 variants except FXCA, FXDA, FXDJ, FXEA, FXFA/B

[2] All RF Module Release 2 variants except FXCB, FXDB, FXEB, FXFC

[3] FXCA, FXDA, FXDJ, FXEA, FXFA/B

[4] FXCB, FXDB, FXEB, FXFC, FRGT

[5] Includes combined pressure for both back wall and front wall (door)

Third-party cabinet requirements Flexi Multiradio BTS LTE Installation Site Requirements

84 DN0951839 Issue: 01A

fleximrbts_mr10bts_inst_mod_in_cabs-0900d80580a44dfc.pdf

Figure 33 Module level cooling in a third-party cabinet

Flexi�BTS�module

Air�circulation�from�front�sideto�rear�side�must�be�prevented

Cabinet�front

Free�area�for�module�cooling�fan.Minimum�free�distance�to�module

cooling�fan�40�mm.

The�recommended�distance�from�the�rear�or�frontside�of�the�cabinet�to�any�obstacle�100�mm.

DN70117692

Cabinet�rear�side

Airintake

The entire cabinet volume flow is dependent on the number of modules used (forexample, if three Release 1 RF Modules are used, the entire cabinet volume flow is 420m3/h (3*140 m3/h) and the pressure drop caused by the front and rear door maximum 25Pa). All modules must receive cool ambient air, and the circulation from the front of themodule to the rear side of the module must be prevented. There must be sufficientdistance to the wall (or any other obstacle) in the rear side of the cabinet, so that therequired airflow rate (for example 140 m3/h) is reached in all modules used.It is recommended that the module cables be routed so that they do not prevent the airoutflow from the BTS.

Flexi Multiradio BTS LTE Installation Site Requirements Third-party cabinet requirements

Issue: 01A DN0951839 85

11 19-inch open rack requirements19 in. Open Rack is designed for the installation of the Flexi modules in Indoor sites.

Figure 34 19-inch open rack

Basic requirements are listed below:

• temperature range: -35ºC - +55ºC ( -31ºF - 131ºF)• minimum depth 600 mm (23.6 in.)• humidity resistant• RoHs compliance with the directive 2002/95/EC that requires that all new electrical

and electronic equipment put on the EU market from July 1 2006 do not contain lead,mercury, cadmium, PBB and PBDE.

• In a stand-alone 19 in. racks installations front and back covers must be installed forsafety purposes. Since the cable support plate of the cable entry assembly does notfit into the rack, some modifications are required to the cable entry assembly.

For more information on stand-alone 19 in. racks installations, seeInstalling cable entries for modules in 19 in. racks.

19-inch open rack requirements Flexi Multiradio BTS LTE Installation Site Requirements

86 DN0951839 Issue: 01A

fleximrbts_mr10bts_inst_mod_in_cabs-0900d80580a44dfc.pdf