94194793 BTS3900L Ver C Hardware Description 07 PDF En

BTS3900L (Ver.C)

Hardware Description

Issue 07

Date 2012-02-25

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute the warranty of any kind, express or implied.

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

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 07 (2012-02-25) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

i

http://www.huawei.com

mailto:[email protected]

About This Document

PurposeThis document provides reference for planning and deploying the BTS3900L (Ver.C) (referredto as BTS3900L) cabinet. It describes the structure and components of a BTS3900L cabinet.This document also describes the specifications and installation positions of cables.

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

Product Name Product Version

BTS3900L (Ver.C) V100R004C00

BTS3900L (Ver.C) GSM V100R013C00

BTS3900L (Ver.C) WCDMA V200R013C00

BTS3900L (Ver.C) LTE V100R003C00

Intended AudienceThis document is intended for:l System engineersl Base station installation engineersl Site maintenance engineers

Organization1 Changes in the BTS3900L (Ver.C) Hardware Description

This chapter describes the changes in the BTS3900L (Ver.C) Hardware Description.

2 Exterior of the BTS3900L Cabinet

The BTS3900L cabinet is a vertical cabinet designed in compliance with the IEC297 standard.

BTS3900L (Ver.C)Hardware Description About This Document


ii

3 BTS3900L Hardware Configuration

This chapter describes the cabinet configuration, power configuration, and monitoringconfiguration of the BTS3900L and provides references for site planning and deployment.

4 BTS3900L Components

BTS3900L components consist of the BBU3900, RFU, DCDU-11A, fan box, ELU and optionalmodules.

5 BTS3900L Cables

This section describes the BTS3900L cables. The BTS3900L cables consist of the PGND cable,power cable, transmission cable, CPRI cable, signal cable, and RF cable.

ConventionsSymbol Conventions

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

Symbol Description

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

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

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

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

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

General Conventions

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

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

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

Italic Book titles are in italics.

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



iii

Command Conventions

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


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

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

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

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

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

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

GUI Conventions

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


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

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

Keyboard Operations

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

Format Description

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

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

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

Mouse Operations



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

Action Description

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

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

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



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Contents

About This Document.....................................................................................................................ii

1 Changes in the BTS3900L (Ver.C) Hardware Description.....................................................1

2 Exterior of the BTS3900L Cabinet..............................................................................................4

3 BTS3900L Hardware Configuration...........................................................................................53.1 Module Configurations in the Cabinet...............................................................................................................63.2 Power System of the BTS3900L........................................................................................................................7

3.2.1 Configurations of the Upper-Level Circuit Breakers and Power Cables..................................................83.2.2 Power Distribution...................................................................................................................................11

3.3 BTS3900L Monitoring System........................................................................................................................123.3.1 BBU Monitoring Port..............................................................................................................................123.3.2 Monitoring Principles of the Cabinet......................................................................................................133.3.3 Customized Alarm Inputs........................................................................................................................14

3.4 Transmission Board Configurations.................................................................................................................17

4 BTS3900L Components...............................................................................................................204.1 BBU3900 Equipment.......................................................................................................................................22

4.1.1 BBU3900.................................................................................................................................................224.1.2 BBU3900 Components............................................................................................................................23

4.2 DRFU................................................................................................................................................................764.3 GRFU................................................................................................................................................................804.4 WRFU...............................................................................................................................................................844.5 WRFUd.............................................................................................................................................................884.6 MRFU...............................................................................................................................................................914.7 MRFUd.............................................................................................................................................................954.8 MRFUe.............................................................................................................................................................994.9 MRFU V3.......................................................................................................................................................1024.10 LRFU............................................................................................................................................................1064.11 LRFUe..........................................................................................................................................................1094.12 DCDU-11A...................................................................................................................................................1134.13 Fan Assembly...............................................................................................................................................1144.14 ELU..............................................................................................................................................................1164.15 GATM..........................................................................................................................................................117

BTS3900L (Ver.C)Hardware Description Contents


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5 BTS3900L Cables.......................................................................................................................1195.1 List of BTS3900L Cables...............................................................................................................................1215.2 Cable Connections..........................................................................................................................................125

5.2.1 Power Cable Connections......................................................................................................................1255.2.2 Transmission Cable Connections..........................................................................................................1275.2.3 CPRI Cable Connections.......................................................................................................................1615.2.4 Monitoring Signal Cable Connections..................................................................................................1775.2.5 RF Cable Connections...........................................................................................................................179

5.3 PGND Cables.................................................................................................................................................2015.4 Power Cable....................................................................................................................................................202

5.4.1 Input Power Cables for the Cabinet.......................................................................................................2025.4.2 BBU Power Cable.................................................................................................................................2035.4.3 Power Cable for the FAN Box..............................................................................................................2035.4.4 RFU Power Cable..................................................................................................................................2045.4.5 GATM Power Cable..............................................................................................................................205

5.5 Transmission Cable........................................................................................................................................2065.5.1 E1/T1 Cable...........................................................................................................................................2065.5.2 FE/GE Cable..........................................................................................................................................2095.5.3 FE/GE Fiber Optic Cable......................................................................................................................2105.5.4 Interconnection Cable Between the FE Electrical Ports........................................................................2115.5.5 Interconnection Cable Between FE Optical Ports.................................................................................211

5.6 CPRI Electrical Cable.....................................................................................................................................2125.7 Signal Cable....................................................................................................................................................212

5.7.1 Monitoring Signal Cable for the Fan Box.............................................................................................2125.7.2 Fan Box Cascade Signal Cable..............................................................................................................2135.7.3 Monitoring Signal Cable for the EMU..................................................................................................2145.7.4 BBU Alarm Cable.................................................................................................................................2155.7.5 GPS Clock Signal Cable........................................................................................................................2165.7.6 Signal Cable for the ELU......................................................................................................................2175.7.7 Monitoring Signal Cable for the GATM...............................................................................................217

5.8 RF Cable.........................................................................................................................................................2185.8.1 RF Jumper..............................................................................................................................................2185.8.2 Inter-RFU RF Signal Cable...................................................................................................................219

BTS3900L (Ver.C)Hardware Description Contents


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1 Changes in the BTS3900L (Ver.C) HardwareDescription

This chapter describes the changes in the BTS3900L (Ver.C) Hardware Description.

07 (2012-02-25)This is the seventh commercial release.

Compared with issue 06 (2011-11-30), no content is added.

Compared with issue 06 (2011-11-30), this issue incorporates the following changes:

Content Change Description

WMPT Add the transmission specifications of theboards.

UTRP

GTMU

LMPT

GTMU Modified the status description of LEDs onthe panel of the GTMU.

UBRI Modified the status description of LEDs onthe panel of the UBRI.

UTRP Modified the status description of LEDs onthe panel of the UTRP.

UPEU Added the description of the power of theUPEU.

Compared with issue 06 (2011-11-30), no content is deleted.

06 (2011-11-30)This is the sixth commercial release.

BTS3900L (Ver.C)Hardware Description 1 Changes in the BTS3900L (Ver.C) Hardware Description


1

Compared with issue 05 (2011-09-30), this issue adds the following change:l 3.4 Transmission Board Configurations

Compared with issue 05 (2011-09-30), no content is modified.


05 (2011-09-30)This is the fifth commercial release.




5.2.4 Monitoring Signal CableConnections

Updated the figure of monitoring signal cableconnections.

GTMU Corrected the description of the E1 bypassfunction.

UTRP Modified the description of DIP switches.


04 (2011-08-30)This is the fourth commercial release.

Compared with issue 03 (2011-06-25), this issue adds the following changes:

l 4.9 MRFU V3l RF Cable Connections for MRFU V3



WBBP Added the baseband transfer capacity of theWBBP.

Transmission Cable Connections in theGSM+LTE Base Station in Co-Transmission Mode

Updated the figure about transmission cableconnections for a GSM+LTE base station inco-transmission mode.

Transmission Cable Connection in theUMTS+LTE Base Station in Co-Transmission Mode

Updated the figure about transmission cableconnections for a UMTS+LTE base station inco-transmission mode.




2

03 (2011-06-25)

This is the third commercial release.


Compared with issue 02 (2011-05-25), this issue incorporates the following change:


4.8 MRFUe The short description is modified.


02 (2011-05-25)

This is the second commercial release.


Compared with issue 01 (2011-04-30), this issue incorporates the following change:


3.2.1 Configurations of the Upper-LevelCircuit Breakers and Power Cables

The contents of some upper circuit breakerare added.


01 (2011-04-30)

This is the first commercial release.

Compared with issue Draft A (2011-01-30), no content is added.

Compared with issue Draft A (2011-01-30), this issue incorporates the following changes:

Topic Change Description

4.13 Fan Assembly The contents of fan box is modified.

DCDU-11A The option of 2 x 80A is added.

Compared with issue Draft A (2011-01-30), no content is deleted.

Draft A (2011-01-30)

This is the Draft release.



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2 Exterior of the BTS3900L Cabinet

The BTS3900L cabinet is a vertical cabinet designed in compliance with the IEC297 standard.

Figure 2-1 shows the exterior and dimension of the BTS3900L cabinet.

Figure 2-1 Exterior and dimension of the BTS3900L Cabinet

BTS3900L (Ver.C)Hardware Description 2 Exterior of the BTS3900L Cabinet


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3 BTS3900L Hardware Configuration

About This Chapter

This chapter describes the cabinet configuration, power configuration, and monitoringconfiguration of the BTS3900L and provides references for site planning and deployment.

3.1 Module Configurations in the CabinetThis section describes the principles and scenarios for configuring a BTS3900L cabinet.

3.2 Power System of the BTS3900LThe BTS3900L supports -48 V DC power supply.

3.3 BTS3900L Monitoring SystemThe BTS3900L monitoring system monitors all boards and components in the cabinet. If anyboard or component is faulty, an alarm is reported automatically. The alarm signals are collectedboth inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can bemonitored.

3.4 Transmission Board ConfigurationsIn different modes, different transmission boards can be configured for E1/T1 or FE signaltransmission.

BTS3900L (Ver.C)Hardware Description 3 BTS3900L Hardware Configuration


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3.1 Module Configurations in the CabinetThis section describes the principles and scenarios for configuring a BTS3900L cabinet.

Configuration PrinciplesTable 3-1 describes the principles for configuring a BTS3900L cabinet.

Table 3-1 Configuration principles

Module Optional orMandatory

MaximumNumber ofModulesConfiguredin a Cabinet

Remarks

BBU Mandatory 2 l When only one BBU isconfigured, the BBU isinstalled in the upper part ofthe cabinet.

l When two BBUs areconfigured, the BBUinstalled in the upper part ofthe cabinet is BBU0, and theBBU installed in the lowerpart of the cabinet is BBU1.

RFU Mandatory 12 -

Fan box Mandatory 2 -

DCDU-11A Mandatory 2 The number is subject to thenumber of the BBUs.

RFU filler panel Optional - To ensure proper ventilation ofthe cabinet, the slot in the RFUsubrack that is not installed withan RFU must be installed with afiller panel.

Transmissionequipment

Optional - l The transmission equipmentmust be able to work properlyat a temperature higher than55 C.

l The transmission equipmentis installed at the bottom ofthe cabinet. When the GATMis required, it is preferentiallyinstalled at the bottom of thecabinet, and the transmissionequipment is installed on topof the GATM.



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Cabinet ConfigurationsFigure 3-1 shows the configuration of a BTS3900L cabinet.

Figure 3-1 Cabinet configurations

(1) RFU (2) FAN unit (3) Air inlet (4) DCDU-11A

(5) BBU (6) Cabling space (7) Installation space forthe transmissionequipment

-

NOTE

Space for installing the transmission equipment is 4 U. When BBU1 is required, it occupies a 2 U space.

3.2 Power System of the BTS3900LThe BTS3900L supports -48 V DC power supply.

Table 3-2 lists the input voltage scope supported by the BTS3900L.



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Table 3-2 DC input voltage scope supported by the BTS3900L

Power Supply Rated Voltage

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

3.2.1 Configurations of the Upper-Level Circuit Breakers and PowerCables

This section describes the recommended configurations of the upper-level circuit breaker andpower cables for the BTS3900L. The recommended configurations are based on a scenario wherea base station is fully configured and where the output power of the base station reaches the peakvalue. The power requirements for the customer equipment in the cabinet are also considered.

BTS3900L DC CabinetIn the -48 V DC power supply scenario, the recommended configurations of the upper-levelcircuit breakers and power cables for the BTS3900L are listed in Table 3-3.

NOTE

l All power cables must comply with local standards.

l P is short for Pole, indicating the number of switches simultaneously controlled by a pole.

Table 3-3 Recommended configurations of the upper-level circuit breakers and power cablesfor the BTS3900L DC cabinet

Configuration(1)(2)

(9)(10)Minimum CircuitBreakerConfigurationRequired byCustomerEquipment(3)(4)(5)

Power Cable(8) Remark

l Seven to twelvehigh-powerRFUs (radiofrequency units)(6)

l Two BBUs

4 x 80 A/1P (default) 4 x 16 mm2 for theDC power input fromtwo DCDU-11As.

≤ 15 m

2 x 160 A/1P 2 x 35 mm2 LSZH(low smoke zerohalogen) for the DCpower input fromtwo DCDU-11As.

l Seven to twelvelow-power RFUs(7)

l Two BBUs

4 x 63 A/1P 4 x 16 mm2 for theDC power input fromtwo DCDU-11As.



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Configuration(1)(2)



l Seven to twelvelow-power RFUs

l One to two BBUs


l One to six high-power RFUs

l zero to two BBUsl The maximum

configuration ofone subrack isthree RFUs.



l zero to two BBUsl A subrack is

allowed toconfigure withmore than threeRFUs.

3 x 80 A/1P 3 x 16 mm2 for theDC power input fromtwo DCDU-11As,one of which isconnected to twocircuit breakers andthe otherDCDU-11A isconnected to onecircuit breaker.


l One BBUl The maximum of

six RFUs areconfigured in onesubrack.

2 x 80 A/1P(Restricted)(11)

2 x 16 mm2 for theDC power input fromone DCDU-11A.

l One to six low-power RFUs

l One to two BBUsl The maximum

configuration ofone subrack isthree RFUs..




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Configuration(1)(2)




l one to two BBUsl A subrack can be

configured withmore than threeRFUs.

3 x 63 A/1P 3 x 16 mm2 for theDC power input fromtwo DCDU-11As,one of which isconnected to twocircuit breakers andthe otherDCDU-11A isconnected to onecircuit breaker.

2 x 80 A/1P 2 x 16 mm2 for theDC power input fromtwo DCDU-11As,one of which isconnected to twocircuit breakers andthe otherDCDU-11A isconnected to onecircuit breaker


l One BBUl The maximum of

six RFUs areconfigured in onesubrack.

2 x 63 A/1P(Restricted)(11)

2 x 16 mm2 for theDC power input fromone DCDU-11A



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NOTE

(1) If both high-power RFUs and low-power RFUs exist in the same base station, the power configurationfor high-power RFUs will apply for the base station.

(2) If possible, it is suggested to configure the base station with the power configuration for maximumhigh-power RFUs so as to satisfy all scenarios. If the power configuration has to be in accordance withactual scenarios, the circuit breaker and power cables need to be upgraded in case of base station extension.

(3) The power configuration applicable for the scenarios with higher power consumption is also applicablefor the scenarios with lower power consumption.

(4) The circuit breakers for high load capability are applicable to those for low load capability. The sequenceof load capability for circuit breakers is: 1 x 160A > 2 x 80A > 2 x 63A > 1 x 100A > 1 x 80A > 1 x 63A.

(5) The power consumption of inner transmission is ignored for the circuit breakers of indoor macro basestation.

(6) High-power RFUs include: LRFUe, WRFUd, and MRFUd.

(7) Low-power RFUs include: DRFU, GRFU, WRFU, MRFU, CRFU, LRFU. and MRFU V3.

(8) If two external power inputs are supplied, the following requirements must be met:

l The two power inputs must be supplied by the same power cabinet.

l The circuit breakers used for the two power inputs have the same model and specifications.

l The power cables for the two power inputs must have the same cross-sectional area and length.

l When powering on the base station, turn on the two circuit breakers of power input before turningon the circuit breakers for all the RFUs. When powering off the base station, turn off the circuitbreakers for all the RFUs before turning off the two circuit breakers of power input.

(9) One DCDU-11A can supply a maximum of three power inputs for two BBUs. The cabinet can beconfigured with a maximum of two BBUs, one with power consumption of 650 W and the other with powerconsumption of 360 W. If an additional DCDU-11A is configured, the cabinet can be configured with twoBBUs both with power consumption of 650 W.

(10) If two BBU3900s are configured, the second BBU3900 shall obtain power from a power cabinetoutside of the DCDU-11A in the base station that the second BBU3900 installed.

(11) The power cables for the fan unit or BBU must be reconnected. For details, see theBTS3900L (Ver.C) Installation Guide.

3.2.2 Power DistributionThis section describes the power distribution mode of the BTS3900L cabinet.

The external power equipment supplies -48 V DC power to the DCDU-11A of the BTS3900Lcabinet, and the DCDU-11A feeds power to each module in the cabinet. Figure 3-2 shows theprinciples of the power distribution.



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Figure 3-2 Power distribution of the BTS3900

3.3 BTS3900L Monitoring SystemThe BTS3900L monitoring system monitors all boards and components in the cabinet. If anyboard or component is faulty, an alarm is reported automatically. The alarm signals are collectedboth inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can bemonitored.

3.3.1 BBU Monitoring PortThe BBU houses the UPEU and UEIU for monitoring. Each board has two Boolean input portsand two RS485 input ports, and each Boolean input port receives four Boolean inputs.

Figure 3-3 shows the slot assignment for the UPEU and UEIU.



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Figure 3-3 Slot assignment for the UPEU and UEIU

Table 3-4 lists the ports on the UPEU and UEIU.

Table 3-4 Ports on the UPEU and UEIU

Slot Board Port Connector Quantity Description

Slot19 UPEU EXT-ALM0 RJ45connector

1 Port forBooleaninputs 0 to 3

EXT-ALM1 RJ45connector


MON0 RJ45connector

1 Port forRS485 input0

MON1 RJ45connector


Slot18 UEIU(optional)





MON0 RJ45connector


MON1 RJ45connector


3.3.2 Monitoring Principles of the CabinetA monitoring board is connected to the MON port on the BBU. It collects the alarms of allcomponents and reports the alarms to the BBU by using the RS485 serial bus.

For details about the monitoring ports on the FMU, see FMU.



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Two BBUs are required in an evolution from a single-mode or dual-mode scenario as shown inFigure 1 to a triple-mode scenario as shown in Figure 2 or in a new triple-mode scenario asshown in Figure 2. The BBU installed in the upper part of the cabinet is BBU0, and the BBUinstalled in the lower part of the cabinet is BBU1. In a triple-mode scenario, all the monitoringequipment is connected to BBU0. The monitoring principles of the triple-mode scenario are thesame as the dual-mode scenario.

NOTE

The BBU 0 is main BBU, and the BBU 1 is extension BBU.

If any device in the figure is not configured at the site, neither need its cable to be installed.

Figure 3-4 Monitoring system for the BTS3900L cabinet (triple-mode scenario)

NOTE

For details about how to monitor the EMU, please refer to 3.3.3 Customized Alarm Inputs.

3.3.3 Customized Alarm InputsCustomized alarms must be reported to the BBU.

The customized alarms are reported to the BBU by any of the following methods:

l The alarms are collected by the UPEU or UEIU in the BBU.

l The alarms are collected by the EMU.For details about the configuration of the customized alarms, see the related initial configurationguide.



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Monitoring Board ConfigurationThe configurations of the monitoring boards in the BTS3900L depend on the number ofcustomized alarms, as listed in Table 3-5.

Table 3-5 Configuration of monitoring boards in the BTS3900L

Number of Dry Contact Alarm Inputs Monitoring Board

None UPEU

1 to 16 UPEU+UEIU

17 to 32 UPEU+UEIU+EMU

NOTE

l If backup power is required for the BBU, two UPEUs are configured instead of UPEU+UEIU.

l The analog values can be monitored only by the EMU.

l The EMU with sensors can be configured according to site requirements.

Customized Alarms Collected by the UPEU or UEIUEach UPEU or UEIU in the BBU supports eight Boolean signal inputs. The UPEU+UEIU or amaximum of two UPEUs can be configured for a BBU to receive 16 Boolean signal inputs. Thismethod can be used for the configuration of less than 16 customized alarm inputs. The methodto collect customized alarms by the UPEU or UEIU is shown in Figure 3-5.



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Figure 3-5 Customized alarms collected by the UPEU or UEIU

Customized Alarms Collected by the EMUIf there are more than 16 Boolean signal inputs, the EMU can be configured for the BTS3900.Each EMU supports 32 Boolean signal inputs and two RS485 signal inputs, the cable connectionsare shown in Figure 3-6.



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Figure 3-6 Customized alarms collected by the EMU

3.4 Transmission Board ConfigurationsIn different modes, different transmission boards can be configured for E1/T1 or FE signaltransmission.

Table 3-6 lists the transmission modes supported by the boards working in different modes.

Table 3-6 Transmission modes supported by the boards

Transmission Mode

Board GSM/UMTSMode

Port PortCapacity

Full-duplex orHalf-duplex

ATM overE1/T1

WMPT UMTS 1 Fourchannels

Full-duplex

UTRP3 UMTS 2 Eightchannels

Full-duplex

IP over E1/T1

GTMU/GTMUb

GSM 1 Fourchannels

Full-duplex



17

Transmission Mode

Board GSM/UMTSMode

Port PortCapacity

Full-duplex orHalf-duplex

WMPT UMTS 1 Fourchannels

Full-duplex

UTRP4 UMTS 2 Eightchannels

Full-duplex

UTRPb4 LTE 2 Eightchannels

Full-duplex

TDM overE1/T1

GTMU/GTMUb

GSM 1 Fourchannels

Full-duplex

UTRPb4 GSM 1 Fourchannels

Full-duplex

Transmission over FE/GE opticalcable

GTMU/GTMUb

GSM 1 10 Mbit/sand 100Mbit/s

Full-duplex

LMPT LTE 2 10 Mbit/s,100 Mbit/s,and 1000Mbit/s

Full-duplex

WMPT UMTS 1 10 Mbit/sand 100Mbit/s

Full-duplex

UTRP2 UMTS 2 10 Mbit/s,100 Mbit/s,and 1000Mbit/s

Full-duplex

Transmission over FE/GE electricalcable

GTMU/GTMUb

GSM 1 10 Mbit/sand 100Mbit/s

Full-duplex

LMPT LTE 2 10 Mbit/s,100 Mbit/s,and 1000Mbit/s

Full-duplex

WMPT UMTS 1 10 Mbit/sand 100Mbit/s

Full-duplex

UTRP9 UMTS 4 10 Mbit/s,100 Mbit/s,and 1000Mbit/s

Full-duplex



18

NOTE

l The GTMU/GTMUb is mandatory for the GSM mode. When the channels of the E1/T1 signals aremore than four, the UTRPb4 must be configured for E1/T1 signal transmission.

l The WMPT is mandatory for the UMTS mode. When the channels of the E1/T1 signals are more thanfour, the UTRP3 or UTRP4 must be configured for E1/T1 signal transmission. When the transmissionrate for the FE optical cable is higher than 100 Mbit/s, the UTRP2 must be configured. When thetransmission rate for the FE electrical cable is more than 100 Mbit/s, the UTRP9 must be configured.

l The transmission over FE/GE optical cable is recommended for the LMPT.



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4 BTS3900L Components

About This Chapter

BTS3900L components consist of the BBU3900, RFU, DCDU-11A, fan box, ELU and optionalmodules.

4.1 BBU3900 EquipmentThis section presents the exterior of the BBU3900 and describes the boards in the BBU3900 andtheir panels, functions, indicators, ports, and engineering specifications.

4.2 DRFUDouble radio frequency unit (DRFU) is an RF unit of GSM radio filter and applies to GOscenario.

4.3 GRFUGSM radio frequency unit (GRFU) is an RF unit of GSM radio filter and applies to GO scenario.

4.4 WRFUWCDMA Radio Frequency (WRFU) is an RF unit of WCDMA radio filter and applies to UOscenario.

4.5 WRFUdWCDMA Radio Frequency Unit Type D (WRFUd) is an RF unit of WCDMA radio filter andapplies to UO scenario.

4.6 MRFUMulti-Mode Radio Frequency Unit (MRFU) is a type of RF unit that can work in multiple radiofrequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

4.7 MRFUdMulti-Mode Radio Frequency Unit Type D (MRFUd) is a type of RF unit that can work inmultiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

4.8 MRFUeMulti-Mode Radio Frequency Unit Type E (MRFUe) is a type of RF unit that can work inmultiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

4.9 MRFU V3Multi-Mode Radio Frequency Unit V3 (MRFU V3) is a type of RF unit that can work in multipleradio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

BTS3900L (Ver.C)Hardware Description 4 BTS3900L Components


20

4.10 LRFULTE Radio Frequency Unit (LRFU) is an RF unit of LTE FDD (Frenquency Division Duplex)and applies to LTE Only scenario.

4.11 LRFUeLTE Radio Frequency Unit Type E (LRFUe) is an RF unit of LTE FDD (Frenquency DivisionDuplex) and applies to LO scenario.

4.12 DCDU-11AThe DCDU-11A provides DC power to all components in the cabinet.

4.13 Fan AssemblyA fan assembly consists of a fan tray, four fans, and an FMU.

4.14 ELUThe Electronic Label Unit (ELU) reports the cabinet type information.

4.15 GATMThe GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.



21

4.1 BBU3900 EquipmentThis section presents the exterior of the BBU3900 and describes the boards in the BBU3900 andtheir panels, functions, indicators, ports, and engineering specifications.

The BBU3900 performs the following functions:l Provides ports for communication between the base station and the BSC or RNC.l The GTMU provides CPRI ports for communication between the BBU and the RFUs.l Provides USB ports. A USB flash drive can be inserted into the USB port to perform the

automatic base station upgrade during software installation and data configuration.l Provides an OM channel between the base station and the LMT or the M2000 to operate

and maintain the base station.l Processes uplink and downlink data.l Manages the entire dual-mode system in terms of OM and signaling processing.l Provides the system clock.

4.1.1 BBU3900The BBU3900, which has a case structure, is 19 inches wide and 2 U high.

The dimensions of the BBU3900 are 86 mm x 442 mm x 310 mm x (3.39 in. x 17.4 in. x 12.2in.) (H x W x D), as shown in Figure 4-1.

Figure 4-1 BBU3900

The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). It is usedduring base station commissioning.l If there is a label on the FAN unit of the BBU, the ESN is printed on the label and a mounting

ear of the BBU, as shown in Figure 4-2.



22

Figure 4-2 ESN (1)

l If there is no label on the FAN unit of the BBU, the ESN is printed on a mounting ear ofthe BBU, as shown in Figure 4-3.

Figure 4-3 ESN (2)

4.1.2 BBU3900 ComponentsThis describes the boards and module of the BBU3900 in terms of their configuration principles,functions, ports, LEDs, and DIP switches.

Slot Assignment of the BBU3900

This section describes slot assignment of the BBU3900 in the GSM Only (hereinafter referredto as GO), UMTS Only (hereinafter referred to as UO), LTE Only (hereinafter referred to asLO), GSM+UMTS (hereinafter referred to as GU), GSM+LTE (hereinafter referred to as GL),UMTS+LTE (hereinafter referred to as UL), (GSM+UMTS)+(LTE Only) (hereinafter referredto as GU+LO), (GSM+LTE)+(UMTS Only) (hereinafter referred to as GL+UO) scenarios.

Slots of the BBU3900

The slot assignment of the BBU3900 in GO mode, BBU3900 in GU mode, BBU3900 in UOmode, BBU3900 in LO mode, BBU3900 in GL mode, BBU3900 in UL mode, BBU3900 in GU+LO mode, and BBU3900 in GL+UO mode are the same, as shown in Figure 4-4.



23

Figure 4-4 Slots of the BBU3900

BBU3900 Working in GO ModeTable 4-1 describes the principles for configuring the boards in the BBU3900 working in GOmode.

Table 4-1 Principles for configuring the boards in the BBU3900 working in GO mode

Board Optional/Mandatory

MaximumQuantity

InstallationSlot

Remarks

GTMU Mandatory 1 Slots 5 and 6 It is configuredonly in slot 6(with slots 5 and6 occupied).

FAN Mandatory 1 Slot 16 It is configuredonly in slot 16.

UPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.

USCU Optional 1 Slot 0 or 1 It ispreferentiallyconfigured inslot 1.The 1 U GPS/GLONASSreceiver isconfigured inslot 1 (with slots0 and 1occupied).

UTRP Optional 1 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.

UEIU Optional 1 Slot 18 -

UBRI Optional 1 Slot 2 -



24

Figure 4-5 shows the typical configurations of the BBU3900 working in GO mode.

Figure 4-5 Typical configurations of the BBU3900 working in GO mode

BBU3900 Working in UO ModeTable 4-2 describes the principles for configuring the boards in the BBU3900 working in UOmode.

Table 4-2 Principles for configuring the boards in the BBU3900 working in UO mode

Board Optional orMandatory

MaximumQuantity

Slot Remarks

WMPT Mandatory 2 Slot 6 or 7 A single WMPTis preferentiallyconfigured inslot 7.



25


MaximumQuantity

Slot Remarks

WBBP Mandatory 6 Slots 0 to 5 It is configuredin slot 3 bydefault.l If more

CPRI portsare required,the WBBP isinstalled, indescendingorder ofpriority, inslot 3 or 2.

l If no moreCPRI portsare required,the WBBP isinstalled, indescendingorder ofpriority, inslot 3, 0, 1, 2,4, or 5.

If a WBBPd isrequired, it isinstalled, indescendingorder of priority,in slot 3 or 2.If five or moreWBBPs arerequired, ensurethat two WBBPsare installed inslots 2 and 3. Atleast one of thetwo WBBPs isWBBPd.


UPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.




26


MaximumQuantity

Slot Remarks

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

It is installed, indescendingorder of priority,in slot 4, 5, 0, or1.

USCU Optional 1 Slot 1 or 0 The USCU ispreferentiallyconfigured inslot 1.The 1 U GPS/GLONASSreceiver isconfigured inslot 1 (with slots0 and 1occupied).

Figure 4-6 shows the typical configurations of the BBU3900 working in UO mode.

Figure 4-6 Typical configuration of the BBU3900 in UO mode

BBU3900 Working in LO Mode

Table 4-3 describes the principles for configuring the boards in the BBU3900 working in LOmode.

Table 4-3 Principles for configuring the boards in the BBU3900 working in LO mode


MaximumQuantity

InstallationSlot

Remarks

LMPT Mandatory 2 Slot 6 or 7 A single LMPTis configured inslot 7.



27


MaximumQuantity

InstallationSlot

Remarks

LBBP Mandatory 6 Slots 0 to 5 A single LBBPis preferentiallyconfigured inslot 3.The priorities ofslot assignmentare as follows:slot 3, slot 2, slot1, slot 0, slot 4,slot 5.


UPEU Mandatory 2 Slot 18 or 19 A single UPEUis configuredonly in slot 19.


UTRP Optional 1 Slot 4 or 5 It ispreferentiallyconfigured inslot 4.

USCU Optional 1 Slot 0, 1, 4, or 5 A single USCUis preferentiallyconfigured inslot 5. A USCUthat occupies 1U space isconfigured inslots 5 and 4.If slots 4 and 5are occupied, asingle USCU isconfigured inslot 1. In thissituation, aUSCU thatoccupies 1 Uspace isconfigured inslots 1 and 0.

Figure 4-7 shows the typical configurations of the BBU3900 working in LO mode.



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Figure 4-7 Typical configurations of the BBU3900 working in LO mode

BBU3900 Working in GU ModeTable 4-4 describes the principles for configuring the boards in the BBU3900 working in GUmode.

Table 4-4 Principles for configuring the boards in the BBU3900 working in GU mode


MaximumQuantity

InstallationSlot

Remarks

WMPT Mandatory 1 Slot 7 It is configuredonly in slot 7.




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MaximumQuantity

InstallationSlot

Remarks

WBBP Mandatory 5 Slots 0 to 4 It is configuredin slot 3 bydefault.l If more

CPRI portsare required,the WBBP ispreferentially configuredin slot 3 or 2indescendingorder ofpriority.

l If no moreCPRI portsare required,the WBBP ispreferentially configuredin slot 3, 2, 0,1, or 4 indescendingorder ofpriority.

If a WBBPd isrequired, it ispreferentiallyconfigured inslot 3 or 2 indescendingorder of priority.If five or moreWBBPs arerequired, ensurethat two WBBPsare installed inslots 2 and 3. Atleast, one of thetwo WBBPs isWBBPd.





30


MaximumQuantity

InstallationSlot

Remarks


UTRP Optional 2 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.The slot priorityof the GO UTRPis higher thanthat of the UOUTRP.

USCU Optional 1 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.


Figure 4-8 shows the typical configurations of the BBU3900 working in GU mode.

Figure 4-8 Typical configurations of the BBU3900 working in GU mode

BBU3900 Working in GL Mode

Table 4-5 describes the principles for configuring the boards in the BBU3900 working in GLmode.

Table 4-5 Principles for configuring the boards in the BBU3900 working in GL mode


MaximumQuantity

InstallationSlot

Remarks

LMPT Mandatory 1 Slot 7 It is configuredonly in slot 7.



31


MaximumQuantity

InstallationSlot

Remarks


LBBP Mandatory 5 Slots 0 to 4 It ispreferentiallyconfigured inslot 3.The priorities ofslot assignmentare as follows:slot 3, slot 2, slot1, slot 0, slot 4




UTRP Optional 2 Slot 0 or 4 It ispreferentiallyconfigured inslot 4, 0, or 1 indescendingorder of priority.The slot priorityof the GO UTRPis higher thanthat of the LOUTRP.

USCU Optional 1 Slot 0 or 4 It ispreferentiallyconfigured inslot 1.The 1 U GPS/GLONASSreceiver isconfigured inslot 1 (with slots0 and 1occupied).




32

Figure 4-9 shows the typical configurations of the BBU3900 working in GL mode.

Figure 4-9 Typical configuration of the BBU3900 working in GL mode

BBU3900 Working in UL ModeTable 4-6 describes the principles for configuring the boards in the BBU3900 working in ULmode.

Table 4-6 Principles for configuring the boards in the BBU3900 working in UL mode


MaximumQuantity

Slot Remarks

LMPT Mandatory 1 Slot 6 It is configuredonly in slot 6.

WMPT Mandatory 1 Slot 7 It is configuredonly in slot 7.

LBBP Mandatory 5 Slot 0, 1, 2, 4, or5

A single LBBPis configuredonly in slot 2. Ifmore LBBPs arerequired, theLBBP isinstalled, indescendingorder of priority,in slot 2, 0, 1, 4,or 5.



33


MaximumQuantity

Slot Remarks

WBBP Mandatory 4 Slot 0, 1, 3, 4, or5

A single WBBPis configuredonly in slot 3. Ifmore LBBPs arerequired, theWBBP isinstalled, indescendingorder of priority,in slot 3, 0, 1, 4,or 5.If a WBBPd isrequired, it isconfigured onlyin slot 3.

FAN Mandatory 1 Slot 16 Configured onlyin slot 16



UTRP Optional 2 Slot 4 or slot 5 It ispreferentiallyconfigured inslot 4.The slot priorityof the UO UTRPis higher thanthat of the LOUTRP.

USCU Optional 1 Slot 4 or slot 5 It ispreferentiallyconfigured inslot 4.

Figure 4-10 shows the typical configurations of the BBU3900 working in UL mode.



34

Figure 4-10 Typical configuration of the BBU3900 working in UL mode

BBU3900 Working in GU+LO Mode

BBU3900 Working in GU Mode shows the configuration principles of the boards in theBBU3900 working in GU mode.

BBU3900 Working in LO Mode shows the configuration principles of the boards in theBBU3900 working in LO mode.

BBU3900 Working in GL+UO Mode

BBU3900 Working in GL Mode shows the configuration principles of the boards in theBBU3900 working in GL mode.

BBU3900 Working in UO Mode shows the configuration principles of the boards in theBBU3900 working in UO mode.

GTMU

The GSM Transmission &Timing & Management Unit for BBU (GTMU) is the basictransmission and control function entity of the BBU. It provides the reference clock, maintenanceport, and external alarm collection port, monitors the power, control and manage the entire BTS.

Specifications of the GTMU

The GTMU is classified into two types: GTMU and GTMUb. Table 4-7 lists the specificationsof the GTMU and GTMUb.

Table 4-7 Specifications of the GTMU

Board Mode Transmission Mode

Port PortCapacity

Full/Half-Duplex

GTMU/GTMUb

GSM TDM overE1/T1

1 Fourchannels

Full-duplex

Transmission over FE/GE opticalcable

1 10 Mbit/sand 100Mbit/s

Full-duplex



35


Port PortCapacity

Full/Half-Duplex


1 10 Mbit/sand 100Mbit/s

Full-duplex

PanelFigure 4-11 and Figure 4-12 show the panels of the GTMU and GTMUb.

Figure 4-11 GTMU panel

Figure 4-12 GTMUb panel

FunctionsThe GTMU performs the following functions:

l Controls, maintains, and operates the base station.l Supports fault management, configuration management, performance management, and

security management.l Monitors the fans and power modules.l Provides and manages the clock source of the base station in centralized mode.l Provides the clock output for test.l Provides the FE port for maintenance on the OM system.l Supports transmission through four E1s and two FEs.l Provides CPRI ports for communication between the BBU and the RF units.



36

IndicatorTable 4-8 describes the indicators on the GTMU.

Table 4-8 Indicators on the GTMU

Indicator Color Status Description

RUN Green Steady on The board is faulty.

Steady off There is no power supply, or theboard is faulty.

On for 1s and off for1s

The board is running properly.


The base station is disconnectedfrom the base station controller.

On for 0.125s and offfor 0.125s

Software is being upgraded orloaded from the USB flashdrive.

ALM Red Steady on An alarm is generated,indicating a fault.

Steady off There is no fault.

ACT Green Steady on The board works in the activestate.

Steady off The board works in the standbystate.

Besides the preceding three indicators, there are some other indicators on the board, which areused for indicating the connection status of the FE optical port, FE electrical port, CPRI port,commissioning Ethernet port. They are near the corresponding ports and have no silkscreen.Table 4-9 describes the indicators.

Table 4-9 Indicators for ports


LIU0 to LIU3 Green Steady on The link is in the idlestate or a local alarmis generated.


An E1/T1 remotealarm is generated.

Steady off The link isfunctional.



37


CPRI0 to CPRI5 Red/green Steady green The inter-BBUtransmission link isnormal.

Steady red An optical modulefails to receivesignals because theoptical module isfaulty or the fiberoptic cable is broken.

Blinking red (on for1s and off for 1s)

The interconnectionlink is out of lockbecause there ismutual lock betweenthe BBU cases ormismatched data rateover QSFP ports.You are advised tocheck the systemconfiguration tolocate the fault.

Steady off The QSFP modulecannot be detected,or the optical moduleis powered off.

ETH Green (LINKindicator on the left)

Steady on The connection is setup successfully.

Steady off No connection is setup.

Orange (ACTindicator on theright)

Blinking Data is beingtransmitted orreceived.

Steady off No data is beingtransmitted orreceived.

FE0 Green (LINKindicator on the left)



Orange (ACTindicator on theright)




38



FE1 (on theGTMUb)

Green (LINKindicator on the left)



Green (ACTindicator on theright)



M_S (on theGTMUb)

- - This is the indicatorfor the reserved port.

EXT (on theGTMUb)

- - This is the indicatorfor the reserved port.

PortTable 4-10 describes the ports on the GTMU.

Table 4-10 Ports on the GTMU

Silkscreen Connector Description

CPRI0 to CPRI5 SFP femaleconnector

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

EXT (on theGTMUb)

SFP femaleconnector

Reserved

ETH RJ45 connector Local maintenance and commissioning port

FE0 RJ45 connector Connected to the routers in the equipment roomthrough FE cables to transmit networkinformation

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

USB USB connector Used for automatic software upgrade through theUSB disk



39


TST USB connector Providing reference clock for the test instruments

E1/T1 port DB26 femaleconnector

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

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

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

l S1 is used to set the E1 resistance. Table 4-11 provides details on the DIP switch.l S2 is used to set the grounding mode of E1/T1 transmission cables. Table 4-12 provides

details on the DIP switch.l S3 is reserved.l S4 is used to determine whether to enable E1 bypass. Table 4-13 provides details on the

DIP switch.l S5 is used for timeslot settings when the E1 bypass is selected. Table 4-14 provides details

on the DIP switch.

Table 4-11 Description on S1

DIPSwitch

DIP Status Description

1 2 3 4

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

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

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

Others Unavailable

NOTE

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



40


DIPSwitch


1 2 3 4

S2 OFF OFF OFF OFF All the bits are set toOFF by default in allmodes.

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

Others Unavailable


DIPSwitch


1 2 3 4

S4 ON ON ON ON Supporting E1 bypass

OFF OFF OFF OFF Not supporting E1bypass

Others Unavailable


DIPSwitch


1 2 3 4

S5 ON ON ON ON Not supporting E1bypass

OFF ON ON OFF Supporting E1 bypassfor two cascaded basestations

ON OFF ON OFF Supporting E1 bypassfor three cascaded basestations

OFF OFF ON OFF Supporting E1 bypassfor four cascaded basestations



41

DIPSwitch


1 2 3 4

ON ON OFF OFF Supporting E1 bypassfor five cascaded basestations

OFF ON OFF OFF Supporting E1 bypassfor six cascaded basestations

WMPTThe WCDMA main processing & transmission unit (WMPT) processes signals for the BBU3900and manages resources for other boards in the BBU3900.

Specifications of the WMPTTable 4-15 lists the transmission capabilities of the WMPT.

Table 4-15 Transmission capabilities of the WMPT

Board TransmissionMode

Port Port Capacity Full/Half-Duplex

WMPT ATM over E1/T1 or IP overE1/T1

1 Four channels Full-duplex

Transmissionover FE/GEoptical cable

1 100 Mbit/s and1000 Mbit/s

Full-duplex

Transmissionover FE/GEelectrical cable

1 100 Mbit/s and1000 Mbit/s

Full-duplex

PanelFigure 4-13 shows the WMPT.

Figure 4-13 WMPT



42

FunctionsThe WMPT performs the following functions:

l Performs OM functions such as configuration management, equipment management,performance monitoring, signaling processing, and active and standby switchover, andprovides OM channel to communicate with the LMT or M2000.

l Provides reference clock for the system.l Processes signaling and manages resources for other boards in the BBU3900.l Provides USB ports. A USB flash drive that stores required software and configuration data

can be inserted into the USB port to perform the automatic base station upgrade.l Provides a 4-channel E1 port over ATM or IP.l Provides an FE electrical port and an FE optical port over IP.

IndicatorTable 4-16 describes the indicators on the WMPT panel.

Table 4-16 Indicators on the WMPT panel

Silkscreen Color Status Description

RUN Green Steady on There is powersupply, but the boardis faulty.

Steady off There is no powersupply.


The board isfunctioning properlyaccording to theconfiguration.


The board is beingloaded or configured,the board is notstarted, or the boardis running properly.

ALM Red Steady off There is no fault.

Steady on A hardware alarm isgenerated on theboard.

ACT Green Steady on The board serves asan active board.

Steady off The board serves as astandby board.

In addition to the preceding three indicators, there are six indicators on the board, which indicatethe connection status of the FE optical port, FE electrical port, and debugging port. The six



43

indicators do not have silkscreen on the WMPT panel, whereas they are at both sides of thecorresponding ports, as shown in Figure 4-14.

Figure 4-14 Indicators for the ports on the WMPT

Table 4-17 lists the indicators on the board.

Table 4-17 Ports and Indicators


Indicators for theFE1 optical port

Green (LINK) Steady on The connection is setup successfully.


Green (ACT) Blinking Data is beingtransmitted orreceived.


Indicators for theFE0 electrical port



Yellow (ACT) Blinking Data is beingtransmitted orreceived.


Indicators for theETH port





44


Yellow (ACT) Blinking Data is beingtransmitted orreceived.


PortTable 4-18 describes the ports on the panel of the WMPT.

Table 4-18 Ports on the panel of the WMPT


E1/T1 port DB26 connector E1/T1 port

FE0 RJ45 connector FE electrical port

FE1 SFP connector FE optical port

GPS SMA connector Reserved

ETH RJ45 connector Commissioning

USB USB connector USB loading port

TST USB connector USB commissioning port

RST - Reset button

DIP SwitchThe WMPT has two DIP switches. SW1 is used to set the work mode of the E1/T1 signal cable,and SW2 is used to set the resistance of the four E1/T1 signal cables in different modes. Figure4-15 shows the DIP switch settings of the WMPT.



45

Figure 4-15 DIP switch settings of the WMPT

Table 4-19 and Table 4-20 list the DIP switch settings of the WMPT.

Table 4-19 Settings of the DIP switch SW1 on the WMPT

DIPSwitch


1 2 3 4

SW1 ON ON OFF OFF T1

OFF OFF ON ON The E1resistance isset to 120ohm.

ON ON ON ON The E1resistance isset to 75 ohm.

Others Unavailable

Table 4-20 Settings of the DIP switch SW2 on the WMPT

DIPSwitch


1 2 3 4

SW2 OFF OFF OFF OFF Balanced

ON ON ON ON Unbalanced

Others Unavailable



46

LMPTThe LTE main processing & transmission unit (LMPT) manages the entire eNodeB system interms of O&M and signaling processing and provides system clock for the BBU3900.

Specifications of the LMPTTable 4-21 lists the specifications of the LMPT.

Table 4-21 Specifications of the LMPT


Port PortCapacity

Full/Half-Duplex

LMPT LTE Transmission over FE/GE opticalcable

2 10 Mbit/s,100 Mbit/s,and 1000Mbit/s

Full-duplex


2 10 Mbit/s,100 Mbit/s,and 1000Mbit/s

Full-duplex

PanelFigure 4-16 shows the LMPT.

Figure 4-16 LMPT

FunctionsThe LMPT has the following functions:

l Enabling configuration management, device management, performance monitoring,signaling processing, and radio source management

l Controls all boards in the systeml Providing the system clockl Enabling signal exchange between the eNodeB and MME/S-GW

IndicatorThere are three LEDs on the panel of the LMPT. Table 4-22 describes the LEDs on the LMPT.



47

Table 4-22 LEDs on the panel of the LMPT

Identifier Color Status Description

RUN Green Steady on There is power supply, butthe board is faulty.

Steady off There is no power supply,or the board is faulty.

On for 1s and offfor 1s

The board is runningproperly.

On for 0.125s andoff for 0.125s

The board is being loaded,the board is not started, orthe board is runningproperly.

ALM Red Steady on An alarm is reported,indicating a fault in theboard.

Steady off The board is workingproperly.


An alarm is generated, andthe alarm may be caused byan associated board or portfault. Therefore, you mustlocate the fault beforereplacing the board.

ACT Green Steady on The board serves as anactive board.


On for 0.125s andoff for 0.125s

The OML link isdisconnected.


The board is being tested,such as an RRU VoltageStanding Wave Ratio(VSWR) test through aUSB disk. When anupgrade through a USBdisk is implemented, theACT LED does not blink.

Besides the preceding three LEDs, some other LEDs used for indicating the connection statusof the FE optical port, FE electrical port, commissioning Ethernet port have no silkscreen on theboard. They are near the ports. Table 4-23 describes the LEDs.



48

Table 4-23 Ports and LEDs

Identifier Color Status Description

SFP0 and SFP1 Green (LINK) Steady on The connection is setup successfully.


Orange (ACT) Blinking Data is beingtransmitted orreceived.


ETH Orange (ACT) Blinking Data is beingtransmitted orreceived.




FE/GE0 to FE/GE1 Green (LINK) Steady on The connection is setup successfully.


Orange (ACT) Blinking Data is beingtransmitted orreceived.


PortTable 4-24 describes the ports on the panel of the LMPT.



49

Table 4-24 Ports on the panel of the LMPT

Identifier Connector Quantity Purpose

SFP0 and SFP1 LC 2 FE/GE optical portconnecting to thetransmissionequipment or gatewayequipment

USB USB 1 Software loading

TST USB 1 Test port

ETH RJ45 connector 1 Commissioning

FE/GE0 to FE/GE1 RJ45 connector 2 FE/GE electrical portconnecting to thetransmissionequipment or gatewayequipment

GPS SMA connector 1 GPS port

RST - 1 Resetting theBBU3900

NOTE

SFP0 and FE/GE0 ports on the LMPT are used for one GE input. Therefore, they are not usedsimultaneously.SFP1 and FE/GE1 ports on the LMPT are used for another GE input. Therefore, they are not usedsimultaneously.

WBBPThe WCDMA BaseBand Processing Unit (WBBP) in the BBU3900 processes baseband signals.

PanelThe WBBP has three types of panels, as shown in Figure 4-17, Figure 4-18, and Figure 4-19.

Figure 4-17 Panel of the WBBPa

Figure 4-18 Panel of the WBBPb



50

Figure 4-19 Panel of the WBBPd

FunctionsThe WBBP performs the following functions:l Provides CPRI ports for communication with RF modules, and supports CPRI ports in 1

+1 backup mode.l Processes uplink and downlink baseband signals.l The WBBPd supports interference cancellation (IC) within the board.l The WBBPd installed in slot 2 or slot 3 supports the IC function of uplink data.

Table 4-25 describes the specifications of the WBBP.

NOTEThe baseband board in slot 2 or slot 3 could transfer the received CPRI data to other boards.

Table 4-25 Specifications of the WBBP

Board Number ofCells

Number of ULCEs

Number of DLCEs

BasebandTransferCapacity

WBBPa 3 128 256 N/A

WBBPb1 3 64 64 Twelve 1T2Rcells




WBBPd1 6 64 64 Twenty-four1T2R cells

192 192


384 384




51

NOTEThere are two CE specifications for the WBBPd1 and WBBPd2 as controlled by the license and parameters.

IndicatorThere are three indicators on the panel of the WBBP. Table 4-26 describes the indicators on theWBBP and their status.

Table 4-26 Indicators on the panel of the WBBP and their status


RUN Green Steady on There is power supply, but theboard is faulty.

Steady off There is no power supply.

On for 1s and off for 1s The board is functioningproperly according to theconfiguration.

On for 0.125s and off for0.125s

The board is being loaded orconfigured, the board is notstarted, or the board is runningin a safety version.

ALM Green Steady on An alarm is generated, and theboard must be replaced.

On for 1s and off for 1s An alarm is generated, and thealarm may be caused by anotherfaulty board or port. Therefore,you need to locate the faultbefore deciding whether toreplace the board.


ACT Red Steady off The board serves as an activeboard.

Steady on The board is in the non-activemode, not activated, notconfigured, or is manuallyblocked. Therefore, it does notprovide any services.

On for 1s and off for 1s The power supply for the boardis insufficient.



52

The WBBPa or WBBPb provides three indicators indicating the status of Small Form-factorPluggable (SFP) links, and the indicators are below the SFP ports. The WBBPd provides sixindicators indicating the status of SFP links, and the indicators are above the SFP ports.

Table 4-27 describes the indicators.

Table 4-27 Indicators indicating the status of the CPRI ports


CPRIx Red and green Steady green The CPRI link isfunctioning properly.

Steady red An optical modulefails to receive signalsbecause the opticalmodule is faulty or theoptical cable isbroken.

Blinking red (on for0.125s and off for0.125s)

The RF moduleconnected to the CPRIlink has a hardwarefault.


The CPRI link is outof lock because ofmutual lock of dual-mode clock sources ormismatched data rateover CPRI ports (youare advised to checkthe systemconfiguration tocheck the fault) orVSWR alarms arereported on the RFmodule on the CPRIlink because the USBflash drive is undertest.

Steady off The SFP modulecannot be detected, orthe optical module ispowered off.

PortTable 4-28 describes the three CPRI ports on the panel of the WBBPa and WBBPb.



53

Table 4-28 Ports on the WBBPa and WBBPb panels


CPRIx SFP female connector Data transmission portinterconnected to the RFmodule. It supports the inputand output of optical andelectrical transmissionsignals.

Table 4-29 describes the six CPRI ports on the panel of the WBBPd.

Table 4-29 Ports on the WBBPd panel


CPRI0, CPRI1,CPRI2, CPRI3/EIH0, CPRI4/EIH1,CPRI5/EIH2

SFP female connector Data transmission portinterconnected to the RF module.It supports the input and output ofoptical and electricaltransmission signals.

LBBP

The LTE BaseBand Processing Unit (LBBP) in the BBU3900 processes baseband signals.

Panel

The LBBP has two types of panels, as shown in Figure 4-20 and Figure 4-21.

Figure 4-20 Panel of the LBBPb

Figure 4-21 Panel of the LBBPc



54

NOTEThe LBBPb is applicable only to the LTE FDD scenario, and the LBBPc is applicable both to the LTEFDD and LTE TDD scenarios.

FunctionsThe LBBP has the following functions:l Processes uplink and downlink baseband signals.l Provides CPRI ports for communication with RF modules.

Table 4-30 lists the specifications of the LBBP that is used in the LTE FDD scenario.

Table 4-30 Specifications of the LBBP

Board Number of Cells Cell Bandwidth AntennaConfiguration

LBBPb 3 10 MHz One 2T2R channel

1 20 MHz One 2T2R channel


LBBPc 3 20 MHz One 2T2R channel



Table 4-31 lists the specifications of the LBBP that is used in the LTE TDD scenario.

Table 4-31 Specifications of the LBBP

Board Number of Cells Cell Bandwidth AntennaConfiguration

LBBPc 3 20 MHz One 2T2R channel



1 10 MHz or 20 MHz One 8T8R channel

IndicatorThere are three indicators on the panel of the LBBP. Table 4-32 describes the indicators on theLBBP.



55

Table 4-32 Indicators on the LBBP



Steady off There is no powersupply, or the boardis faulty.


The board is runningproperly.


The board is beingloaded or configured,the board is notstarted, or the boardis running in a safetyversion.

ALM Red Steady on An alarm isgenerated, and theboard must bereplaced.


An alarm isgenerated, and thealarm may be causedby another faultyboard or port.Therefore, you mustlocate the faultbefore replacing theboard.


ACT Green Steady on The board has beenactivated and isproviding services.

Steady off The board is notactivated (manuallyblocked or notconfigured).Therefore, it does notprovide any services.

As listed in Table 4-33, the LBBP provides six indicators indicating the status of the SFP links.The indicators are positioned above the SFP ports.



56

Table 4-33 Indicators indicating the status of the SFP links


TX RX Red and green Steady green The CPRI link isfunctioning properly.

Steady red An optical modulefails to receive signalsbecause the opticalmodule is faulty or theoptical cable isbroken.

Blinking red (on for0.125s and off for0.125s)

The RF moduleconnected to the CPRIlink has a hardwarefault.


The CPRI link is outof lock because thereis mutual lockbetween dual-modeclock sources ormismatched data rateover CPRI ports (youare advised to checkthe systemconfiguration tolocate the fault), orunder the USB flashdrive testingconditions, VSWRalarms are reported onthe RRU connected tothe CPRI link.

Steady off The SFP modulecannot be detected, orthe optical module ispowered off.

PortTable 4-34 describes the six CPRI ports on the panel of the LBBP.



57

Table 4-34 Ports on the LBBP

Silkscreen Connector Quantity Description


6 Connecting to the RFmodules fortransmitting servicedata, clock signals,and synchronizationinformation

FANThe FAN unit for the BBU3900 controls the speed of fans and monitors the temperature of thefan unit. It reports the status of the fans and fan unit, and dissipates heat from the BBU.

PanelThe FAN units fall into two types: FAN and FANc, as shown in Figure 4-22 and Figure 4-23.

Figure 4-22 FAN



58

Figure 4-23 FANc

NOTEThere is a FANc silkscreen on the FANc while the FAN has no such silkscreen.

FunctionsThe FAN unit performs the following functions:l Controls the fan speed.l Reports the status, temperature, and in-position signal of the fans to the main control

processing unit.l Monitors the temperature at the air intake vent.l Dissipates heat.l The FANc provides a read-write electronic label.

IndicatorThere is only one indicator on the panel of the FAN unit, which indicates the operating statusof the fans. Table 4-35 describes the indicator.

Table 4-35 Indicator on the panel of the FAN unit


STATE Green On for 0.125s and offfor 0.125s

The module is notregistered, and noalarm is reported.


The module isworking.

Red Steady off No alarm isgenerated.


The module isreporting alarms.



59

UPEUThe Universal Power and Environment Interface Unit (UPEU) for the BBU3900 converts -48V DC or +24 V DC power into +12 V DC.

PanelThe UPEU is classified into three types: Universal Power and Environment Interface Unit TypeA (UPEUa), Universal Power and Environment Interface Unit Type B (UPEUb), and UniversalPower and Environment Interface Unit Type C (UPEUc). The UPEUa and UPEUc convert -48V DC power into +12 V DC, and the UPEUb converts +24 V DC power into +12 V DC. Figure4-24, Figure 4-25, and Figure 4-26 show the panels of the UPEUa, UPEUb, and UPEUc,respectively.

Figure 4-24 UPEUa panel

(1) BBU power switch (2) 7W2 connector

Figure 4-25 UPEUb panel

(1) BBU power switch (2) 7W2 connector



60

Figure 4-26 UPEUc panel

(1) BBU power switch (2) 3V3 connector

NOTEThe UPEUc has a silkscreen "UPEUc" indicating its board type on it, whereas the UPEUa and UPEUb donot have such a silkscreen indicating their board types. The UPEUa and UPEUb, however, can bedistinguished by the silkscreens "-48 V" and "+24 V" on them.

FunctionsThe UPEU performs the following functions:l Converts -48 V DC or +24 V DC power into +12 V DC, which is the operating voltage of

the boards.l Provides two ports with each transmitting one RS485 signal and two ports with each

transmitting four Boolean signals. The Boolean signals can only be dry contact or OpenCollector (OC) signals.

Table 4-36 describes the specifications of the UPEU.

Table 4-36 Specifications of the UPEU

Board Output Power Backup Mode

UPEUa The output power of aUPEUa is 300 W.

1+1 backup

UPEUc The output power of aUPEUc is 360 W, and theoutput power of two UPEUcboards is 650 W.

1+1 backup

UPEUa+UPEUc The total output power of aUPEUa and a UPEUc is 360W.

-



61

NOTEAfter the UPEUc is replaced by the UPEUa, the base station power consumption data monitored by thenetwork management system will change. The power consumption data does not only depend on the outputpower but also on the data collection method. The UPEUc and UPEUa use different methods for powerconsumption data collection. Therefore, the decrease in the power consumption shown in the networkmanagement system after the UPEUc is replaced by the UPEUa does not necessarily reflect the actualdecrease of power consumption.

IndicatorThe UPEU has one indicator, which indicates the operating status of the UPEU. Table 4-37describes the indicator.

Table 4-37 Indicator on the UPEU panel


RUN Green Steady on The board isfunctional.


PortThe UPEU provides two RS485 signal ports, each transmitting one RS485 signal, and twoBoolean signal ports, each transmitting four Boolean signals. Figure 4-27 shows the slots in theBBU.

Figure 4-27 Slots in the BBU

Table 4-38 describes the ports on the panel of the UPEU.

Table 4-38 Description on the ports

Slot Silkscreen

Connector

Quantity Description

Slot 19 +24 V or-48 V

3V3 1 Introducing +24 V or -48 V DC power

EXT-ALM0

RJ45connector

1 Port for Boolean inputs 0 to 3



62

Slot Silkscreen

Connector

Quantity Description

EXT-ALM1

RJ45connector


MON0 RJ45connector

1 Port for RS485 input 0

MON1 RJ45connector


Slot 18 +24 V or-48 V

3V3 1 Introducing +24 V or -48 V DC power

EXT-ALM0

RJ45connector


EXT-ALM1

RJ45connector


MON0 RJ45connector


MON1 RJ45connector


UEIU

The Universal Environment Interface Unit (UEIU) of the BBU3900 transmits monitoring signalsand alarm signals from external devices to the main control board.

Panel

Figure 4-28 shows the panel of the UEIU.

Figure 4-28 Panel of the UEIU

Functions

The UEIU performs the following functions:



63

l Provides two ports with each transmitting one RS485 signal.

l Provides two ports with each transmitting four Boolean signals. The Boolean signals canonly be dry contact or OC signals.

l Transmits monitoring signals and alarm signals from external devices to the main controlboard.

Port

The UEIU is configured in slot 18 and provides two RS485 signal ports, each transmitting oneRS485 signal, and two Boolean signal ports, each transmitting four Boolean signals.

Table 4-39 describes the ports on the panel of the UEIU.

Table 4-39 Ports on the panel of the UEIU

Slot Silkscreen

Connector

Quantity

Description

Slot 18 EXT-ALM0

RJ45connector


EXT-ALM1

RJ45connector


MON0 RJ45connector


MON1 RJ45connector


USCU

This section describes the Universal Satellite card and Clock Unit (USCU).

Specifications of the USCU

The USCU is classified into three types, as shown in Table 4-40.

Table 4-40 Specifications of the USCU

Board Mode Supported Satellite Card

USCUb11 LTESRAN

N/A

USCUb12 GSMUMTSLTESRAN

RT single-satellite card



64

Board Mode Supported Satellite Card

USCUb21 GSMUMTSLTE

K161 dual-satellite card

PanelThere are three types of USCU: USCUb11, USCUb12, and USCUb13, as shown in Figure4-29 and Figure 4-30. The USCUb11 and USCUb12 have the same exterior.

Figure 4-29 USCUb11 and USCUb12 panel

Figure 4-30 USCUb21 panel

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

FunctionsThe USCU has the following functions:

l The USCUb11 provides ports to communicate with the RGPS (for example the reusedequipment of the customer) and BITS equipment. It does not support GPS signals.

l The USCUb12 performs time synchronization or obtains accurate clock signals from thetransmission equipment. It does not support RGPS signals.

l The USCUb21 provides ports to communicate with the BITS and TOD equipment. Itsupports GPS and GLONASS signals but does not support RGPS signals.

IndicatorTable 4-41 and Table 4-43 describe the indicators on the USCU.



65

Table 4-41 Indicators on the USCU


RUN Green Steady on There is power supply, but theboard is faulty.

Steady off There is no power supply, or theboard is faulty.


The board is running properly.


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

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

Steady on An alarm is generated, and theboard must be replaced.


An alarm is generated, and thealarm may be caused by anassociated board or port fault.Therefore, you must locate thefault before replacing the board.

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

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

The ALM indicator in GSM mode has different statuses from the ACT indicator on other boards,as listed in Table 4-42.

Table 4-42 Indicators on the USCU


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


An alarm is generated, and thealarm may be caused by anassociated board or port fault.Therefore, you must locate thefault before replacing the board.



66

Table 4-43 Indicators on the TOD port

Color Description Default Configuration

Green If the indicator is steadyon, the TOD port isconfigured as an inputport.

The green indicator of the TOD0 port isoff, and the yellow indicator of the TOD0port is on.

Yellow If the indicator is steadyon, the TOD port isconfigured as an outputport.

The yellow indicator of the TOD1 port isOff, and the green indicator of the TOD1port is On.

PortTable 4-44 describes the ports on the USCU.

Table 4-44 Ports on the USCU

Port Connector Description

GPS SMA coaxialconnector

The GPS ports on the USCUb12 and USCUb21receive GPS signals.The GPS port on the USCUb11 is reserved. It cannotreceive GPS signals.

RGPS port PCB weldedwiring terminal

The RGPS port on the USCUb11 receives RGPSsignals.The RGPS ports on the USCUb12 and USCUb21 arereserved. They cannot receive RGPS signals.

TOD0 port RJ45 connector Receiving or transmitting 1PPS+TOD signals

TOD1 port RJ45 connector Receiving or transmitting 1PPS+TOD signals, andreceiving TOD signals from the M1000

BITS port SMA coaxialconnector

Receiving BITS clock signals, supporting adaptiveinput of 2.048 MHz and 10 MHz clock referencesource

M-1PPS port SMA coaxialconnector

Receiving 1PPS signals from the M1000

UTRPThe Universal Transmission Processing unit (UTRP) is an extended transmission board in theBBU3900. It provides ports connecting to transmission equipment.

Specifications of the UTRPTable 4-45 describes the specifications of the UTRP.



67

Table 4-45 Specifications of the UTRP

Board Sub-board/BoardType

Port Mode

UTRP2 UEOC Two FE/GE opticalports

UMTS

UTRP3 UAEC Eight ATM over E1/T1 ports

UMTS

UTRP4 UIEC Eight IP over E1/T1ports

UMTS

UTRPb4 Without a sub-board Four TDM over E1/T1 ports

GSM

UTRPb4 Without a sub-board Eight IP over E1/T1ports

LTE

UTRP6 UUAS One unchannelizedSTM-1/OC-3 port

UMTS

UTRP9 UQEC Four FE/GEelectrical ports

UMTS

Panel

Figure 4-31 shows the panel of the UTRP2.

Figure 4-31 Panel of the UTRP2 (with two optical ports)

Figure 4-32 shows the panel of the UTRP3 and UTRP4.

Figure 4-32 Panel of the UTRP3 and UTRP4 (with eight E1/T1 channels)

Figure 4-33 shows the panel of the UTRPb4 in GSM mode.



68

Figure 4-33 Panel of the UTRPb4 (GSM)

Figure 4-34 shows the panel of the UTRPb4 in LTE mode.

Figure 4-34 Panel of the UTRPb4 (LTE)


Figure 4-35 Panel of the UTRP6 (with one STM-1 channel)


Figure 4-36 Panel of the UTRP9 (with four electrical ports)

Functions

The UTRP performs the following functions:

l Provides extended E1/T1 ports to connect to transmission equipment, supporting ATM,TDM, and IP.

l Provides electrical and optical transmission ports to connecting to transmission equipment.

l Supports cold backup.



69

Remark

The GTMUa cannot be used together with the UTRPc.

Indicator

Table 4-46 describes the indicators on the panel of the UTRP.

Table 4-46 Indicators on the panel of the UTRP





The board is workingas configured.


The board is notconfigured or data isbeing loaded.


The board works inoffline mode or isbeing tested.

ALM Red On or blinkingquickly

An alarm is reported,indicating a fault inthe board.



A minor alarm isreported.


A major alarm isreported.


A critical alarm isreported.

ACT Green Steady on The board serves asan active board.


The RUN and ALM indicators on the UTRPb4 board in GSM mode have different status fromthe RUN and ALM indicators on other boards, as listed in Table 4-48.



70

Table 4-47 Indicators on the panel of the UTRP





The board is workingas configured.


The board is out ofcommunication withthe main controlboard.

ALM Red On or blinkingquickly

An alarm is reported,indicating a fault inthe board.


The ACT indicator on the UTRPb4 board in GSM mode has different status from the ACTindicator on other boards, as listed in Table 4-48.

Table 4-48 Status of the ACT indicator on the UTRPb4 board in GSM mode

Status of the ACT Indicator Before the Configuration Takes Effect

Steady on None of the E1 ports or more than one E1ports in GSM mode are functional.

On for 0.125s and off for 0.125s Only one E1 port in GSM mode is functional.

Each Ethernet port on the UTRP2 and UTRP9 corresponds to two indicators indicating the statusof the current links, as listed in Table 4-49.

Table 4-49 Indicators for the Ethernet ports on the UTRP2 and UTRP9


LINK Green Steady on The link is connectedproperly.

Steady off The link is notconnected properly.



71


ACT Orange Blinking Data is beingtransmitted orreceived on the link.

Steady off No data is beingtransmitted orreceived on the link.

Port

Table 4-50 describes the ports on the UTRP2.

Table 4-50 Ports on the panel of the UTRP2 (with 2 optical ports)

Silkscreen Port Type Quantity Connector

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

The UTRP3, UTRP4, and UTRPb4 have the same ports, as listed in Table 4-51.

Table 4-51 Ports on the panel of the UTRP3, UTRP4, and UTRPb4 (with 8 E1/T1 ports)


E1/T1 port E1/T1 port 2 DB26 connector

Table 4-52 lists the ports on the UTRP6.

Table 4-52 Ports on the panel of the UTRP6 (with one STM-1 channel)


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

Table 4-53 lists the ports on the UTRP9.

Table 4-53 Ports on the panel of the UTRP9 (with four electrical ports)


FE/GE0 to FE/GE3 FE/GE electrical port 4 RJ45 connector



72

DIP Switch

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

There are three DIP switches on the UTRP3, UTRP4, and UTRPb4. SW1 and SW2 are used toset whether to ground the receiver end of the E1, whereas SW3 is used to set the impedance ofthe E1 cable. Figure 4-37 shows the DIP switches on the UTRP3 and UTRP4. Figure 4-38shows the DIP switches on the UTRPb4.

Figure 4-37 DIP switches on the UTRP3 and UTRP4

Figure 4-38 DIP switches on the UTRPb4

Table 4-54, Table 4-55, and Table 4-56 list the settings of the DIP switches on the UTRP.

Table 4-54 Settings of SW1 on the UTRP

DIPSwitch


1 2 3 4





73

DIPSwitch


1 2 3 4

Others Unavailable


DIPSwitch


1 2 3 4



Others Unavailable

CAUTIONSW1 and SW2 are set to OFF by default. SW1 corresponds to No.4 to No.7 E1 channels. SW2corresponds to No.0 to No.3 E1 channels.


DIPSwitch


1 2 3 4

SW3 OFF OFF ON ON T1

ON ON OFF OFF The E1resistance isset to 120ohm.

ON ON ON ON The E1resistance isset to 75 ohm.

Others Unavailable

UBRI

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



74

PanelFigure 4-39 shows the panel of the UBRI.

Figure 4-39 UBRI panel

FunctionsThe UBRI has the following functions:l Provides extended CPRI electrical or optical ports.l Performs convergence, distribution, and multi-mode transmission on the CPRI.

IndicatorTable 4-57 describes the indicators on the panel of the UBRI.

Table 4-57 Indicators on the panel of the UBRI



Steady off There is no powersupply, or the boardis in the alarm status.


The board isfunctioning andcommunicating withthe main controlboard properly.


The board is out ofcommunication withthe main controlboard.

ALM Red ON or blinking at ahigh frequency

The board is in thealarm status.

Steady off No alarm isgenerated.

ACT Green Steady on The board worksproperly.



75


Steady off The board is notworking.

The UBRI provides six indicators indicating the status of the CRRI links. The indicators areabove the SFP ports. Table 4-58 describes the meanings of the indicators.

Table 4-58 Indicators indicating the status of the CPRI ports

Label Color Status Description

CPRIx Red/green Steady green The CPRI port isconfigured and theCPRI link isfunctioning properly.

Steady red The CPRI port isconfigured but theoptical module cannotbe detected.

PortTable 4-59 describes the ports on the panel of the UBRI.

Table 4-59 Ports on the panel of the UBRI

Label Connector Quantity Description


6 Connecting the BBUand the RF module

4.2 DRFUDouble radio frequency unit (DRFU) is an RF unit of GSM radio filter and applies to GOscenario.

PanelFigure 4-40 shows the DRFU panel.



76

Figure 4-40 DRFU panel

Function

The DRFU performs modulation, demodulation, data processing, and combining and dividingfor baseband signals and radio frequency (RF) signals.

In addition, the DRFU provides the following functions:

l Converts the direct frequency conversion technology, modulates the baseband signals forthe GSM TX band. After filtering and amplification, the baseband signals are transmittedto the antenna system through the duplexer.

l Receives uplink RF signals from the antenna system and then down-converts the receivedsignals to intermediate frequency (IF) signals. After amplification, analog-to-digitalconversion, digital down-conversion, matched filtering, automatic gain control (AGC), theIF signals are sent to a baseband unit (BBU) for further processing.

l Performs power control.

l Performs reverse power detection.

l Synthesizes frequencies and tests loops.

l Generates the common public radio interface (CPRI) clock, recovers the CPRI clock fromloss of synchronization, and detects alarms.

A DRFU consists of a high-speed interface unit, signal processing unit, power amplifier, anddual-duplexer. Figure 4-41 shows the logical structure of the DRFU.



77

Figure 4-41 Logical structure of the DRFU

IndicatorsThere are six indicators on the DRFU panel, indicating its operating status. Table 4-60 describesthe status of the indicators on the DRFU.

Table 4-60 Status of the Indicators on the DRFU


RUN Green Steady on There is power supply, but the modulebreaks down or is verifying thesoftware version.

Blinking (on for 1s andoff for 1s)

The module works properly.

Blinking (on for 0.125sand off for 0.125s)

The module is loading software.

Off There is no power supply, or the modulebreaks down.

ALM Red Steady on Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.


Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, thenecessity for module replacement isuncertain.

Off No alarm (excluding VSWR alarms) isgenerated.

ACT Green Steady on The module works properly with theTX channel enabled.



78



The module works properly with theTX channel disabled.

VSWR Red Steady on The VSWR alarm is generated on theANT1 port.


The VSWR alarm is generated on theANT2 port.


The VSWR alarm is generated on theANT1 and ANT2 ports.

Off No VSWR alarm is generated.

CPRI0 Red andgreen

Steady green The CPRI link is available.

Steady red The reception of the optical module isabnormal, and an alarm is generated.

Blinking red (on for 1sand off for 1s)

The CPRI link has a loss-of-lock error.

Off The small form-factor pluggable (SFP)module is not properly installed, or theoptical module is powered off.

CPRI1 Red andgreen





Off The SFP module is not properlyinstalled, or the optical module ispowered off.

PortsTable 4-61 describes the ports on the DRFU.

Table 4-61 Ports on the DRFU

Port Type Silkscreen onthe Port

ConnectorType

Description

Port fortransceivingRF signals

ANT1 DIN femaleconnector

Connects to the antenna system.

ANT2



79

Port Type Silkscreen onthe Port

ConnectorType

Description

CPRI port CPRI0 SFP femaleconnector

Connects to a lower-level radiofrequency unit (RFU) during thecascading.

CPRI1 Connects to the BBU, or an upper-levelRFU in the cascading mode.

Interconnection port forreceiving RFsignals

RX1/IN QMA femaleconnector

Receives the diversity signals in theantenna channel 1.

RX1/OUT Transmits the diversity signals in theantenna channel 1.

RX2/IN Receives the diversity signals in theantenna channel 2.

RX2/OUT Transmits the diversity signals in theantenna channel 2.

Powersupply port

PWR 3V3 powerconnector

Feeds in power.

4.3 GRFUGSM radio frequency unit (GRFU) is an RF unit of GSM radio filter and applies to GO scenario.

PanelGRFUs fall into three types: GRFU V1, GRFU V2, and GRFU V2a. The three types of GRFUscan be identified by their labels. As shown in Figure 4-42, there is "V0" or "V1" on the label ofa GRFU V1, there is "V2" on the label of a GRFU V2, and there is "V2a" on the label of a GRFUV2a.



80

Figure 4-42 GRFU panel

FunctionA GRFU performs modulation and demodulation between baseband signals and radio frequency(RF) signals, processes data, and combines and divides signals.

In addition,the GRFU has the following functions:

l Converts the direct frequency conversion technology, modulates the baseband signals forthe GSM TX band. After filtering and amplification, the baseband signals are transmittedto the antenna system through the duplexer.

l Receives uplink RF signals from the antenna system and then down-converts the receivedsignals to intermediate frequency (IF) signals. After an amplification, analog-to-digitalconversion, digital down-conversion, matched filtering, automatic gain control (AGC), theIF signals are sent to the baseband unit (BBU) for further processing.

l Provides power control and VSWR detection.l Performs reverse power detection.l Synthesizes frequencies and tests loops.l Generates the common public radio interface (CPRI) clock, recovers the CPRI clock from

loss of synchronization, and detects alarms.

PrinciplesA GRFU consists of a high-speed interface unit, signal processing unit, power amplifier, anddual-duplexer. Figure 4-43 shows the logical structure of the GRFU.



81

Figure 4-43 Logical structure of the GRFU

Indicators

The six indicators on the GRFU panel indicate the operating status of the GRFU. Table 4-62describes the indicators on the GRFU panel.

Table 4-62 Indicators on the GRFU Panel

Indicator

Color Status Description

RUN Green Steady on There is power supply, but the modulebreaks down or is verifying the softwareversion.








Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, the necessityfor module replacement is uncertain.


ACT Green Steady on The module works properly with the TXchannel enabled.



82

Indicator



The module works properly with the TXchannel disabled.

VSWR Red Steady on The VSWR alarm is generated on theANT_TX/RXA port.


A VSWR alarm is generated on theANT_RXB port.


The VSWR alarm is generated on theANT_TX/RXA and ANT_RXB port.


CPRI0 Red andgreen






CPRI1 Red andgreen






PortsTable 4-63 describes the ports on the GRFU panel.

Table 4-63 Ports on the GRFU Panel

Port Type Silkscreen

ConnectorType

Description

RF port ANT_RXB

DINconnector

Connects to the antenna system

ANT_TX/RXA

DINconnector

Connects to the antenna system



83

Port Type Silkscreen

ConnectorType

Description


Connects to the BBU, or an upper-level RFUin the cascading mode

CPRI1 SFP femaleconnector

Connects to a lower-level RFU during thecascading


RX_INB QMA femaleconnector

Receives the diversity signals

RX_OUTA

QMA femaleconnector

Transmits the main signals

Power supplyport


Feeds in power

Monitoringport

MON RJ45connector

Port for monitoring and commissioning

4.4 WRFUWCDMA Radio Frequency (WRFU) is an RF unit of WCDMA radio filter and applies to UOscenario.

PanelFigure 4-44 shows the panel of the WRFU.



84

Figure 4-44 Panel of the WRFU

FunctionsThe functions of the WRFU are as follows:

l Implements the direct frequency conversion technique in the transmit channel. Thebaseband signals are modulated to WCDMA RF signals. After being filtered and amplifiedor being combined, the RF signals are transmitted through the duplex filter to the antennafor radio transmission.

l Receives UL RF signals from the antenna system and then down-converts the receivedsignals to IF signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to theBBU for further processing.

l Implements power control and Voltage Standing Wave Ratio (VSWR) detectionl Provides reverse power detectionl Provides frequency synthesis and loopback testl Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and

detects alarmsl Supports 40 W (2 carriers) and 80 W (4 carriers) power outputs

PrincipleThe WRFU consists of the high-speed interface unit, signal processing unit, power amplifier,and duplex unit. Figure 4-45 shows the principle of the WRFU.



85

Figure 4-45 Principle of the WRFU

LEDs

Table 4-64 describes the LEDs on the WRFU panel.

Table 4-64 LEDs on the MRFU panel

Label Color State Description

RUN Green ON There is power supply, but the modulebreaks down or is verifying thesoftware version.

OFF The module works properly.




There is no power supply, or themodule breaks down.

ALM Red ON Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.



OFF No alarm (excluding VSWR alarms) isgenerated.

ACT Green ON The module works properly with theTX channel enabled.





86

Label Color State Description

VSWR Red ON (red) VSWR-related alarms are generatedon the ANT_TX/RXA port.


VSWR-related alarms are generatedon the ANT/RXB port.


VSWR-related alarms are generatedon both the ANT_TX/RXA and ANT/RXB ports.

OFF (red) No VSWR alarm is generated.

CPRI0 Red/Green On (green) The CPRI links are normal.

On (red) The reception of the optical module isabnormal, and an alarm is generated.



OFF The SFP is out of position, or theoptical module is powered off.





OFF The SFP is out of position, or theoptical module is powered off.

Ports

Table 4-65 describes the ports on the WRFU panel.

Table 4-65 Ports on the WRFU panel

Port Label Connector Description

RF port ANT_RXB DINconnector

RF RX port for connecting to the antennasystem

ANT_TX/RXA

DINconnector

RF TX/RX port for connecting to theantenna system

CPRI CPRI0 SFP femaleconnector

Connected to the BBU, or the upper-levelWRFU during the cascading


Connected to the lower-level WRFUduring the cascading



87


Interconnection port for RFRX signals


Receives the diversity signals.

RX_OUTA QMA femaleconnector

Transmits the main signals.

Power supplysocket


Feeding power

Monitoringport

MON RJ45connector


4.5 WRFUdWCDMA Radio Frequency Unit Type D (WRFUd) is an RF unit of WCDMA radio filter andapplies to UO scenario.

Panel

Figure 4-46 shows a WRFUd panel.

Figure 4-46 WRFUd panel



88

FunctionsThe functions of the WRFUd are as follows:

l Implements the direct frequency conversion technique in the TX channel. The basebandsignals are modulated to WCDMA RF signals. After being filtered and amplified or beingcombined, the RF signals are transmitted through the duplex filter to the antenna for radiotransmission.

l Receives uplink RF signals from the antenna system and then down-converts the receivedsignals to intermediate frequency (IF) signals. After amplification, analog-to-digitalconversion, digital down-conversion, matched filtering, automatic gain control (AGC), theIF signals are sent to the BBU for further processing.

l Implements power control and Voltage Standing Wave Ratio (VSWR) detection.l Performs reverse power detection.l Synthesizes frequencies and loop tests.l Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and

detects alarms.

PrincipleThe WRFUd consists of the high-speed interface unit, signal processing unit, power amplifier(PA), and duplexer. Figure 4-47 shows the logical structure of the WRFUd.

Figure 4-47 Logical structure of the WRFUd

LEDsTable 4-66 describes the LEDs on the WRFUd panel.



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Table 4-66 LEDs on the WRFUd panel

LED Color Status Description

RUN Green On There is power supply, but the modulebreaks down or is verifying the softwareversion.



Off The module is loading software.


There is no power supply, or the modulebreaks down.

ALM Red On Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.




ACT Green On The module works properly with the TXchannel enabled.



VSWR Red On VSWR-related alarms are generated onthe ANT_TX/RXA port.


VSWR-related alarms are generated onthe ANT_TX/RXB port.


VSWR-related alarms are generated onboth the ANT_TX/RXA and ANT_TX/RXB ports.

Off No VSWR-related alarm is generated.

CPRI0 Red andgreen

On (green) The CPRI link is available.







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CPRI1 Red andgreen






PortsTable 4-67 describes the ports on the WRFUd panel.

Table 4-67 Ports on the WRFUd panel


RF port ANT_TX/RXB

DINconnector


ANT_TX/RXA

DINconnector


Port for connecting to the BBU, or theupper-level WRFUd during the cascading


Port for connecting to the lower-levelWRFUd during the cascading



Input port of diversity signals in theantenna channel


Output port of diversity signals in theantenna channel

Power supplysocket


Socket for feeding power

Monitoringport

MON RJ45connector


4.6 MRFUMulti-Mode Radio Frequency Unit (MRFU) is a type of RF unit that can work in multiple radiofrequencies. It applies to scenarios such as GO, UO, LO, GU and GL.



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PanelMRFUs fall into three types: MRFU V1, MRFU V2, and MRFU V2a. The three types of MRFUscan be identified by their labels. As shown in Figure 4-48, there is "V0" or "V1" on the label ofa MRFU V1, there is "V2" on the label of a MRFU V2, and there is "V2a" on the label of aMRFU V2a.

Figure 4-48 MRFU Panel

FunctionThe functions of MRFU are as follows:

l Modulates and converts the signals to the TX band by up-converting the intermediatefrequency (IF) signals, filters and amplifies the signals and then transmits the signals to theantenna through the duplexer.

l Receives radio frequency (RF) signals from the antenna system, down-converts the signalsto IF signals, and then transmits them to the baseband unit (BBU) after an amplification,analog-to-digital conversion, digital down-conversion, matched filtering, and DigitalAutomatic Gain Control (DAGC).

l Performs power control.l Provides Voltage Standing Wave Ration (VSWR) detection.l Supplies power to the tower mounted amplifier (TMA) and controls the remote electrical

tilt (RET) antenna.l Controls Digital Predistortion (DPD) based on feedback signals.



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PrinciplesA MRFU consists of the high-speed interface unit, signal processing unit, power amplifier, andduplexer. Figure 4-49 shows the principle of the MRFU.

Figure 4-49 Principle of the MRFU

IndicatorsTable 4-68 describes the indicators on the MRFU.

Table 4-68 Indicators on the MRFU

Indicator











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Indicator





ACT Green Steady on The MRFU works properly with the TXchannel enabled.


The MRFU works properly with the TXchannel disabled.



A VSWR alarm is generated on theANT_RXB port.


The VSWR alarm is generated on theANT_TX/RXA and ANT_RXB port.


CPRI0 Red andgreen


Steady red The optical module fails to receivesignals.


The reception of the optical module isabnormal, and an alarm is generated.


CPRI1 Red andgreen






PortsTable 4-69 describes the ports on the MRFU.



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Table 4-69 Port on the MRFU

Port Type Silkscreen ConnectorType

Description

RF port ANT_RXB DINconnector

RF RX port for connecting to the antennasystem

ANT_TX/RXA

DINconnector



Connects to the BBU


Connects to the BBU



Receives the diversity signals


Transmits the main signals

Power supplyport


Feeding -48 V DC power

Monitoringport

MON RJ45connector


4.7 MRFUdMulti-Mode Radio Frequency Unit Type D (MRFUd) is a type of RF unit that can work inmultiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

PanelFigure 4-50 shows a MRFUd panel.



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Figure 4-50 MRFUd panel

Functions

The functions of the MRFUd are as follows:

l Modulates and converts the signals to the TX band by up-converting the intermediatefrequency (IF) signals, filters and amplifies the signals or combines the signals, and thentransmits the signals to the antenna through the duplexer.

l Receives RF signals from the antenna system, down-converts the signals to IF signals, andperforms amplification, analog-to-digital conversion, digital down-conversion, matchedfiltering, and digital automatic gain control (DAGC), and then transmits the signals to theBBU for further processing.


l Provides Voltage Standing Wave Ration (VSWR) detection.

l Supplies power to the TMA and controls the RET antenna.

l Controls Digital Predistortion (DPD) based on feedback signals.

l Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, anddetects alarms.

Principle

The MRFUd consists of the high-speed interface unit, signal processing unit, power amplifier(PA), and duplexer. Figure 4-51 shows the logical structure of the MRFUd.



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Figure 4-51 Logical structure of the MRFUd

LEDsTable 4-70 describes the LEDs on the MRFUd panel.

Table 4-70 LEDs on the MRFUd panel


RUN Green On There is power supply, but the modulebreaks down or is verifying the softwareversion.

Blinking (on for 1s and offfor 1s)







Alarms are generated. The alarms may becaused by the faults on the related boardsor ports. Therefore, the necessity formodule replacement is uncertain.





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VSWR

Red On VSWR-related alarms are generated on theANT_TX/RXA port.


VSWR-related alarms are generated on theANT_TX/RXB port.


VSWR-related alarms are generated onboth the ANT_TX/RXA and ANT_TX/RXB ports.


CPRI0

Red andgreen



Blinking red (on for 1s andoff for 1s)


Off The SFP module is not properly installed,or the optical module is powered off.

CPRI1

Red andgreen






Ports

Table 4-71 describes the ports on the MRFUd panel.

Table 4-71 Ports on the MRFUd panel


RF port ANT_TX/RXB

DINconnector


ANT_TX/RXA

DINconnector


Port for connecting to the BBU



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Input port for diversity RX


Output port for main RX

Power supplysocket


Socket for feeding -48 V DC power

Monitoringport

MON RJ45connector


4.8 MRFUeMulti-Mode Radio Frequency Unit Type E (MRFUe) is a type of RF unit that can work inmultiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

PanelFigure 4-52 shows a MRFUe panel.

Figure 4-52 MRFUe panel



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FunctionsThe functions of the MRFUe are as follows:

l Modulates and converts the signals to the TX band by up-converting the intermediatefrequency (IF) signals, filters and amplifies the signals or combines the signals, and thentransmits the signals to the antenna through the duplexer.

l Receives RF signals from the antenna system, down-converts the signals to IF signals, andperforms amplification, analog-to-digital conversion, digital down-conversion, matchedfiltering, and digital automatic gain control (DAGC), and then transmits the signals to theBBU for further processing.

l Performs power control.l Provides Voltage Standing Wave Ration (VSWR) detection.l Supplies power to the TMA and controls the RET antenna.l Controls Digital Predistortion (DPD) based on feedback signals.l Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and

detects alarms.

PrincipleThe MRFUe consists of the high-speed interface unit, signal processing unit, power amplifier(PA), and duplexer. Figure 4-53 shows the logical structure of the MRFUe.

Figure 4-53 Logical structure of the MRFUe

LEDsTable 4-72 describes the LEDs on the MRFUe panel.



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Table 4-72 LEDs on the MRFUe panel

LED


RUN

Green On There is power supply, but the module breaksdown or is verifying the software version.



Blinking (on for 0.125s andoff for 0.125s)



ALM

Red On Alarms (excluding VSWR alarms) aregenerated, and the module must be replaced.


Alarms are generated. The alarms may becaused by the faults on the related boards orports. Therefore, the necessity for modulereplacement is uncertain.





VSWR

Red On VSWR-related alarms are generated on theANT_TX/RXA port.


VSWR-related alarms are generated on theANT/RXB port.

Blinking (on for 0.125s andoff for 0.125s)

VSWR-related alarms are generated on boththe ANT_TX/RXA and ANT/RXB ports.


CPRI0

Redandgreen





Off The SFP module is not properly installed, orthe optical module is powered off.



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LED


CPRI1

Redandgreen





Off The SFP module is not properly installed, orthe optical module is powered off.

PortsTable 4-73 describes the ports on the MRFUe panel.

Table 4-73 Ports on the MRFUe panel


RF port ANT/RXB

DIN connector RF RX port for connecting to the antennasystem

ANT_TX/RXA

DIN connector RF TX/RX port for connecting to theantenna system





Interconnection portfor receiving RFsignals

RX_INB

QMA femaleconnector


RX_OUTA

QMA femaleconnector


Power supply socket PWR 3V3 powerconnector

Socket for feeding -48 V DC power

Monitoring port MON RJ45connector


4.9 MRFU V3Multi-Mode Radio Frequency Unit V3 (MRFU V3) is a type of RF unit that can work in multipleradio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.



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Panel

Figure 4-54 shows a MRFU V3 panel.

Figure 4-54 MRFU V3 Panel

Function

The functions of MRFU V3 are as follows:

l Modulates and converts the signals to the TX band by up-converting the intermediatefrequency (IF) signals, filters and amplifies the signals and then transmits the signals to theantenna through the duplexer.

l Receives radio frequency (RF) signals from the antenna system, down-converts the signalsto IF signals, and then transmits them to the baseband unit (BBU) after an amplification,analog-to-digital conversion, digital down-conversion, matched filtering, and AutomaticGain Control (AGC).


l Provides Voltage Standing Wave Ration (VSWR) detection.

l Performs reverse power detection.

l Synthesizes frequencies.

l Controls Digital Predistortion (DPD) based on feedback signals.



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PrinciplesA MRFU V3 consists of the high-speed interface unit, signal processing unit, power amplifier,and duplexer. Figure 4-55 shows the principle of the MRFU V3.

Figure 4-55 Principle of the MRFU V3

IndicatorsTable 4-74 describes the indicators on the MRFU V3.

Table 4-74 Indicators on the MRFU V3

Indicator











104

Indicator



Alarms are generated. The alarms may becaused by the faults on the related boardsor ports. Therefore, the necessity formodule replacement is uncertain.


ACT Green Steady on The module works properly with the TXchannel enabled.





A VSWR alarm is generated on the ANT/RXB port.


The VSWR alarm is generated on theANT_TX/RXA and ANT/RXB port.


CPRI0 Red andgreen






CPRI1 Red andgreen






PortsTable 4-75 describes the ports on the MRFU V3.



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Table 4-75 Port on the MRFU V3

Port Type Silkscreen ConnectorType

Description

Port fortransceivingRF signals

ANT_RXB DINconnector

Connects to the antenna system.

ANT_TX/RXA

DINconnector


Connects to the BBU.


Connects to the BBU.



Receives the diversity signals.


Transmits the main signals.

Power supplyport


Feeds in power.

Monitoringport

MON RJ45connector

Port for monitoring and commissioning.

4.10 LRFULTE Radio Frequency Unit (LRFU) is an RF unit of LTE FDD (Frenquency Division Duplex)and applies to LTE Only scenario.

PanelFigure 4-56 shows the panel of the LRFU.



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Figure 4-56 Panel of the LRFU

FunctionsThe LRFU processes uplink and downlink services and controls and monitors internal boardsor modules. Figure 4-57 shows the logical structure of the LRFU.

Figure 4-57 Logical structure of the LRFU



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LEDsTable 4-76 describes the LEDs on the panel of the LRFU.

Table 4-76 LEDs on the LRFU


RUN Green On There is power supply, but the modulebreaks down or is verifying thesoftware version.

Off The module works properly.









ACT Green On The module works properly (TXchannel enabled).


The module is running (TX channeldisabled).

VSWR Red On (red) A VSWR-related alarm is generated atthe ANT_TX/RXA port.


A VSWR-related alarm is generated atthe ANT_TX/RXB port.


A VSWR-related alarm is generated atthe ANT_TX/RXA and ANT_TX/RXB ports.

Off (red) No VSWR alarm is generated.







108


Off The SFP module is out of position, orthe optical module is powered off.






PortTable 4-77 describes the ports on the panel of the LRFU.

Table 4-77 Ports on the panel of the LRFU


RF port ANT_TX/RXB

DIN connector RF TX/RX port for connecting to the antennasystem

ANT_TX/RXA

DIN connector


Used for the connection to the BBU. CPRI0port and CPRI1 port work in mutual backupmode.


Used for the connection to the BBU. CPRI1port and CPRI0 port work in mutual backupmode.

Powersupplysocket


Used for feeding -48 V DC input power

Monitoringport

MON RJ45 connector Port for monitoring and commissioning

4.11 LRFUeLTE Radio Frequency Unit Type E (LRFUe) is an RF unit of LTE FDD (Frenquency DivisionDuplex) and applies to LO scenario.



109

PanelFigure 4-58 shows the panel of the LRFUe.

Figure 4-58 Panel of the LRFUe

FunctionsThe LRFUe processes uplink and downlink services and controls and monitors internal boardsor modules. Figure 4-59 shows the logical structure of the LRFUe.



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Figure 4-59 Logical structure of the LRFUe

LEDsTable 4-78 describes the LEDs on the panel of the LRFUe.

Table 4-78 LEDs on the LRFUe


RUN Green On There is power supply, but the modulebreaks down or is verifying thesoftware version.

Off The module works properly.









ACT Green On The module works properly with theTX channel enabled.



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VSWR Red On (red) A VSWR-related alarm is generated atthe ANT_TX/RXA port.


A VSWR-related alarm is generated atthe ANT_TX/RXB port.


A VSWR-related alarm is generated atthe ANT_TX/RXA and ANT_TX/RXB ports.

Off (red) No VSWR alarm is generated.











Port

Table 4-79 describes the ports on the panel of the LRFUe.

Table 4-79 Ports on the panel of the LRFUe


RF port ANT_TX/RXB

DINconnector


ANT_TX/RXA

DINconnector

Interconnection port for





112


receiving RFsignals




Used for the connection to the BBU. CPRI0port and CPRI1 port work in mutualbackup mode.


Used for the connection to the BBU. CPRI1port and CPRI0 port work in mutualbackup mode.

Power supplysocket


Used for feeding -48 V DC input power

Monitoringport

MON RJ45connector


4.12 DCDU-11AThe DCDU-11A provides DC power to all components in the cabinet.

Functions

The DCDU-11A performs the following functions:

l Supports one -48 V DC input of 160 A or two -48 V DC inputs of 80 A.

l Supports ten -48 V DC outputs of 25 A.

l Supplies power to all componets in the cabinet.

Panel

Figure 4-60 shows a DCDU-11A panel.

Figure 4-60 DCDU-11A panel



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PortsTable 4-80 describes wiring terminals, ports, and switches on the DCDU-11A panel.

Table 4-80 Wiring terminals, ports, and switches on the DCDU-11A panel

Port Type Label Connector Description

Power inputwiring terminal

NEG(-) OT terminal Negative power input wiringterminal

RTN(+) Positive power input wiringterminal

Power outputport

LOAD0 to LOAD9 tool-lessfemale powerconnector(pressfit type)

Power output ports:Ports LOAD0 to LOAD5supply power to RFU0 toRFU5.Port LOAD6 supplies powerto the fan box.Ports LOAD7 and LOAD8supply power to the BBU.Port LOAD9 serves as astandby output port.

Power switch SW0 to SW9 - The power switches SW0 toSW9 control the ports LOAD0to LOAD9 respectively,controlling the power suppliesto the BBU3900, RFUs, andfan box.

4.13 Fan AssemblyA fan assembly consists of a fan tray, four fans, and an FMU.

Exterior of the Fan AssemblyFigure 4-61 shows the exterior of a fan assembly.



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Figure 4-61 Exterior of the Fan Assembly

(1) Fan (2) Fan tray (3) FMU

Function of the Fan Assembly

The fan assembly performs the following functions:

l Provides forced ventilation and heat dissipation for the cabinet.

l Monitors the temperature.

l Supports fan speed adjustment based on temperature or controlled by the BBU.

l Stops the fans when the ambient temperature is low.

FMU

Figure 4-62 shows the ports on the FMU board.

Figure 4-62 Ports on the FMU board

Table 4-81 and Table 4-82 describes the LEDs and Ports on the FMU board.



115

Table 4-81 LEDs on the FMU board

LED Color Status Meaning

RUN Green Blinking (on for 0.125sand off for 0.125s)

The unit is functional but fails tocommunicate with the BBU or upper-level FMU.


The unit is functional and iscommunicating with the BBU orupper-level FMU.

Off There is no power supply, or themodule is faulty.

ALM Red Blinking (on for 1s and offfor 1s)

The module is reporting alarms.

Off No alarm is generated.

Table 4-82 Ports on the FMU board

Port Type Label ConnectorType

Description

Power port -48 V 3V3 powerconnector

The port is used tointroduce the -48 V DCpower supply.

Sensor port SENSOR RJ45 connector The port is connected to theELU.

Communication port

COM OUT RJ45 connector The port is connected to thelower-level FMU.

COM IN RJ45 connector The port is connected to theBBU or upper-level FMU.

4.14 ELUThe Electronic Label Unit (ELU) reports the cabinet type information.

StructureFigure 4-63 shows the structure of an ELU.



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Figure 4-63 Structure of an ELU

4.15 GATMThe GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.

Panel

Figure 4-64 shows the GATM panel.

Figure 4-64 GATM panel

Function

The GATM has the following functions:

l Controls the RET antenna.

l Supplies power to the TMA.

l Reports the RET control signal alarms.

l Monitors the current from the feeder.

NOTE

The GATM cannot support the TMA and RET antenna simultaneously.

LED

On the GATM there are three LEDs, which indicate the operating status of the GATM. Table4-83 describes the LEDs on the GATM.



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Table 4-83 LEDs on the GATM


RUN Green ON for 2s and OFF for 2s The power supply is normal, but thecommunication with the BBU incursfaults.

ON for 1s and OFF for 1s The module is functional andcommunicates with the BBUproperly.

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

ACT Green ON The AISG link is available.

OFF The AISG link is unavailable.

Blinking irregularly The AISG link is in transmissionstate.

ALM Red ON An alarm is generated, such as anovercurrent alarm.

OFF The module is functional.

Port IDThere are eight ports on the GATM, of which six are used to supply power to the TMA or transmitthe RET control signals, one is used to connect the GATM to the BBU, and one is used as anextended RS485 port. In addition, there is also a -48 V DC power supply socket. Table 4-84describes the ports and socket on the GATM.

Table 4-84 Ports and socket on the GATM

Port ID Connector Function

ANT0 to ANT5 SMA female connector Providing power and transmitting controlsignals for the RET antenna

COM1 RJ45 connector Connecting to the BBU

COM2 RJ45 connector Serving as an extended RS485 port forconnecting to other devices

-48 V 3V3 power connector Feeding -48 V DC power



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5 BTS3900L Cables

About This Chapter

This section describes the BTS3900L cables. The BTS3900L cables consist of the PGND cable,power cable, transmission cable, CPRI cable, signal cable, and RF cable.

NOTE

The colors of cables vary according to the countries and areas where Huawei products are delivered. Ifcables are purchased at local markets, the colors of the cables must comply with the rules and regulations.

5.1 List of BTS3900L CablesThe BTS3900L cables include PGND cables, power cables, transmission cables, CPRI electricalcable, signal cables, and RF cables.

5.2 Cable ConnectionsThe power cables, transmission cables, CPRI cables, monitoring signal cables, and RF cablesin a cabinet must be connected on the basis of separate cable connection principles.

5.3 PGND CablesThe PGND cables are used to ensure proper grounding of the cabinet and the modules in thecabinet.

5.4 Power CableThis section describes the power cable of the BTS3900L, which consists of the power cables forthe BTS3900L cabinet, BBU3900, Fan box, and RFU.

5.5 Transmission CableThis describes the BTS3900L transmission cable, which consists of the E1 cable, FE cable, FEOptical Cable, Cable Between two FE Electrical Ports, and Cable Between two FE Optical Ports.

5.6 CPRI Electrical CableThe CPRI electrical cable enables high speed communication between the BBU3900 and theRFU.

5.7 Signal CableThis section describes the BTS3900L signal cable, which consists of monitoring signal cablefor the FAN unit, monitoring signal cable for the EMU, BBU alarm cable, GPS signal cable,and signal cable for the ELU.

5.8 RF Cable

BTS3900L (Ver.C)Hardware Description 5 BTS3900L Cables


119

This section describes the BTS3900L RF cable, which consists of the RF jumper and inter-RFURF signal cable.



120

5.1 List of BTS3900L CablesThe BTS3900L cables include PGND cables, power cables, transmission cables, CPRI electricalcable, signal cables, and RF cables.

PGND Cables and Power CablesThe PGND cables and power cables are listed in Table 5-1.

Table 5-1 PGND cables and power cables

Category Cable One End The Other End

Connector Installation Position

Connector InstallationPosition

Cables to beinstalledonsite

5.3 PGNDCables(PGNDcable for thecabinet)

OT terminal Groundterminal onthe cabinet

OT terminal Externalground bar

5.4.1 InputPowerCables forthe Cabinet

OT terminal NEG (-) andRTN (+)wiringterminals ontheDCDU-11A

OT terminal Externalpowerequipment

Cablesinstalledbeforedelivery

5.3 PGNDCables(PGNDcable for themodules)

OT terminal PGNDterminals onthe modules

OT terminal PGNDterminalinside thecabinet

Power Cablefor the RFU

3V3 powerconnector

PWR port onthe RFU

Parallelterminal

PortsLOAD0 toLOAD5 ontheDCDU-11A

Power Cablefor the FanBox

3V3 powerconnector

-48V port onthe fan box

Parallelterminal

LOAD6 porton theDCDU-11A

Power Cablefor the BBU

3V3 powerconnector

PWR port onthe UPEU

Parallelterminal

LOAD7 portand LOAD8port on theDCDU-11A



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Connector InstallationPosition

Power Cablefor theGATM

3V3 powerconnector

-48V port onthe GATM

Parallelterminal

LOAD9 porton theDCDU-11A

Transmission CablesThe transmission cables are listed in Table 5-2.

Table 5-2 Transmission cables





5.5.1 E1/T1Cable

DB26 maleconnector

E1/T1 porton theGTMU,WMPT, orUTRP

Bare wire Externaltransmissionequipment

5.5.2 FE/GECable

RJ45connector

FE0 port onthe GTMU,WMPT,LMPT, orUTRP

RJ45connector

Externaltransmissionequipment

5.5.3 FE/GEFiber OpticCable

LCconnector

SFP0 port orSFP1 port onthe GTMU,WMPT,LMPT, orUTRP

l FCconnector

l SCconnector

l LCconnector

Externaltransmissionequipment


5.5.4Interconnection CableBetween theFEElectricalPorts

RJ45connector

FE0 port onthe GTMU

RJ45connector

FE0 port onthe WMPT



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5.5.5Interconnection CableBetween FEOpticalPorts

LCconnector

FE1 port onthe GTMU

LCconnector

FE1 port onthe WMPT

CPRI Electrical Cable

The CPRI electrical cable is listed in Table 5-3.

Table 5-3 CPRI electrical cable





5.6 CPRIElectricalCable

SFP20 maleconnector

Ports CPRI0to CPRI5 onthe GTMU,WBBP, orLMPT

SFP20 maleconnector

CPRI0 portor CPRI1port on theRFU

Signal Cables

The signal cables are listed in Table 5-4

Table 5-4 Signal cables





5.7.3MonitoringSignalCable forthe EMU

DB9 maleconnector

RS485 porton the EMU

RJ45connector

MON1 porton the UPEUor UEIU

5.7.4 BBUAlarmCable

RJ45connector

EXT-ALM0port on theUPEU orUEIU

RJ45connector

Externalalarm device



123




5.7.5 GPSClockSignalCable

SMA maleconnector

GPS port onthe USCU

Type Nfemaleconnector

GPS surgeprotector

5.7.2 FanBoxCascadeSignalCable

RJ45connector

COM OUTport on theupper-levelfan boxNOTE

The upper-level fan boxcommunicates with theBBUdirectly.

RJ45connector

COM INport on thelower-levelfan boxNOTE

The lower-level fan boxcommunicates with theBBU bymeans of theupper-levelfan box.


5.7.1MonitoringSignalCable forthe Fan Box

RJ45connector

COM INport on thefan box

RJ45connector

MON0 porton the UPEUor UEIU

5.7.6 SignalCable forthe ELU

RJ45connector

ElectronicLabelingUnit (ELU)

RJ45connector

SENSORport on thefan box

5.7.7MonitoringSignalCable forthe GATM

RJ45connector

COM1 porton theGATM

RJ45connector

MON0 portor MON1port on theUPEU

RF CablesThe RF cables are listed in Table 5-5.



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Table 5-5 RF cables





5.8.1 RFJumper

DIN elbowmaleconnector

RF port onthe panel ofthe RFU

DIN straightmaleconnector

Antennasystem


5.8.2 Inter-RFU RFSignalCable

QMA elbowmaleconnector

RX OUTport on thepanel of theRFU

QMA elbowmaleconnector

RX IN porton anotherRFU panel

5.2 Cable ConnectionsThe power cables, transmission cables, CPRI cables, monitoring signal cables, and RF cablesin a cabinet must be connected on the basis of separate cable connection principles.

5.2.1 Power Cable ConnectionsThis section describes the power cable connections of a BTS3900L cabinet.

The BTS3900L cabinet can work only in -48 V DC power supply scenario. Figure 5-1 showsthe power cable connections of a BTS3900L cabinet in full configuration.



125

Figure 5-1 Power cable connections

Table 5-6 describes the power cables.

Table 5-6 Power cables

SN Description

P31, P32, P41, and P42 For details, see Input Power Cable for theCabinet.

P0 to P5 For details, see Power Cable for the RFU.

P10 to P15

P6 and P16 For details, see Power Cable for the Fan Box.

P7 and P8 For details, see Power Cable for the BBU.

P19 For details, see Power Cable for the GATM.



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5.2.2 Transmission Cable ConnectionsThe base station supports the GSM only, UMTS only, LTE only, GSM+UMTS, GSM+LTE,and UMTS+LTE modes. In different modes, board configurations and transmission cableconnections are different.

Transmission Cable Connections in the GSM Only Base Station

In a GSM base station, the E1/T1 cable, FE/GE Ethernet cable, or FE/GE optical cable can beused for data transmission.

Transmission over the E1 Cable

Figure 5-2 shows the transmission cable connections when the E1/T1 cable is used for datatransmission in a GSM only base station where only the GTMU is configured as the transmissionboard in the BBU3900.

Figure 5-2 E1/T1 cable connections

Table 5-7 describes the cable connections.

Table 5-7 E1/T1 cable connections

Cable Number Cable Description

T1 See 5.5.1 E1/T1 Cable.

Figure 5-3 shows the transmission cable connections when the E1/T1 cable is used for datatransmission in a GSM only base station where the GTMU and UTRP4 are configured astransmission boards in the BBU3900.





127



T1 and T2 See 5.5.2 FE/GE Cable.

Transmission over the FE Cable

Figure 5-4 shows the transmission cable connections when the FE/GE Ethernet cable is usedfor data transmission.

Figure 5-4 FE/GE Ethernet cable connections


Table 5-9 FE/GE Ethernet cable connections


T1 See 5.5.2 FE/GE Cable.

Figure 5-5 shows the transmission cable connections when the FE/GE optical cable is used fordata transmission.

Figure 5-5 FE/GE optical cable connections


Table 5-10 FE/GE optical cable connections


T1 See 5.5.3 FE/GE Fiber Optic Cable.



128

Transmission Cable Connections in the UMTS Only Base StationIn a UMTS base station, the E1/T1 cable, FE/GE Ethernet cable, or FE/GE optical cable can beused for data transmission.

Transmission over the E1 CableFigure 5-6 shows the transmission cable connections when only the E1/T1 cable is used for datatransmission in a base station where only the WMPT is configured in the BBU.

Figure 5-6 E1/T1 cable connections (1)


Table 5-11 E1/T1 cable connections (1)



Figure 5-7 shows the transmission cable connections when only the E1/T1 cable is used for datatransmission in a base station where only the WMPT and UTRP3/UTRP4 is configured in theBBU.

Figure 5-7 E1/T1 cable connections (2)


Table 5-12 E1/T1 cable connections (2)


T1 and T2 See 5.5.1 E1/T1 Cable.

Transmission over the FE CableFigure 5-8 shows the transmission cable connections when only the FE/GE Ethernet cable isused for data transmission in a base station where only the WMPT is configured in the BBU.



129

Figure 5-8 FE/GE Ethernet cable connections (1)


Table 5-13 FE/GE Ethernet cable connections (1)



Figure 5-9 shows the transmission cable connections when only the FE/GE Ethernet cable isused for data transmission in a base station where only the WMPT and UTRP9 is configured inthe BBU.

Figure 5-9 FE/GE Ethernet cable connections (2)


Table 5-14 FE/GE Ethernet cable connections (2)



Figure 5-10 shows the transmission cable connections when only the FE/GE optical cable isused for data transmission in a base station where only the WMPT is configured in the BBU.

Figure 5-10 FE/GE optical cable connections (1)




130

Table 5-15 FE/GE optical cable connections (1)



Figure 5-11 shows the transmission cable connections when only the FE/GE optical cable isused for data transmission in a base station where only the WMPT and UTRP2 is configured inthe BBU.

Figure 5-11 FE/GE optical cable connections (2)


Table 5-16 FE/GE optical cable connections (2)


T1 and T2 See 5.5.3 FE/GE Fiber Optic Cable.

Transmission Cable Connections in the LTE Only Base StationIn an LTE only base station, the E1/T1 cable or FE/GE optical cable can be used for datatransmission.

Transmission over the E1/T1 CableWhen the E1/T1 cable is used for data transmission, the UTRP is required. Figure 5-12 showsthe transmission cable connections.





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Transmission over the FE/GE CableWhen an LTE only base station uses FE/GE transmission, the FE/GE optical cable is usuallyused for data transmission. Figure 5-13 shows the transmission cable connections.

Figure 5-13 FE/GE optical cable connections


Table 5-18 FE/GE optical cable connections



Figure 5-14 shows the transmission cable connections for a GSM only base station when theFE/GE Ethernet cable is used for data transmission.

Figure 5-14 FE/GE Ethernet cable connections

Table 5-19 describes the cables.

Table 5-19 FE/GE Ethernet cable connections

Cable No. Cable Description

T1 For details, see FE Surge Protection TransferCable.

T2 For details, see 5.5.2 FE/GE Cable.



132

Transmission Cable Connections for a GSM+UMTS Base Station in CommonTransmission Mode

When a GSM+UMTS base station works in co-transmission mode, TDM co-transmission or IPco-transmission can be used. Based on the IP co-transmission, the GSM+UMTS base stationcan implement route backup. That is, four FE ports on the GTMU and LMPT panels are used.Of the four FE ports, two FE ports of one type are used for interconnection, and the FE ports ofthe other type are connected to the transport network.

TDM Common TransmissionFigure 5-15 shows the transmission cable connection for a GSM+UMTS base station in TDMcommon transmission mode when the E1/T1 port on the GTMU serves as the shared port toconnect to the BSC and RNC. The GTMU communicates with the WMPT using the backplaneto implement TDM common transmission.

Figure 5-15 Transmission cable connection for a GSM+UMTS base station in TDM commontransmission mode (1)

Table 5-20 describes the cable.

Table 5-20 Transmission cable for a GSM+UMTS base station in TDM common transmissionmode (1)

SN Description

T1 For details, see 5.5.1 E1/T1 Cable.

Figure 5-16 shows the transmission cable connection for a GSM+UMTS base station in TDMcommon transmission mode when the E1/T1 port on the GSM UTRP serves as the shared portto connect to the BSC and RNC. The GSM UTRP communicates with the WMPT using thebackplane to implement TDM common transmission.

NOTE

Note that the E1/T1 ports on the GTMU and the WMPT can also be used for data transmission independently,but the corresponding cable connections are not shown here.

Figure 5-16 Transmission cable connection for a GSM+UMTS base station in TDM commontransmission mode (2)



133

Table 5-21 describes the cable.

Table 5-21 Transmission cable for a GSM+UMTS base station in TDM common transmissionmode (2)

SN Description


IP Over E1 Common TransmissionFigure 5-17 shows the transmission cable connections for a GSM+UMTS base station in IPcommon transmission mode when the E1/F1 port on the UMTS UTRP serves as the shared portto connect to the BSC and RNC, and the FE/GE electrical ports on the GTMU and the WMPTare interconnected to implement IP common transmission.

NOTE

IP common transmission can also be implemented by interconnecting the FE/GE optical ports on the GTMUand the WMPT. The transmission cable connections are similar to Figure 5-17, which are not described here.

Figure 5-17 Transmission cable connections for a GSM+UMTS base station in IP over E1common transmission mode (1)


Table 5-22 Transmission cables for a GSM+UMTS base station in IP over E1 commontransmission mode (1)

SN Description


T2 For details, see 5.5.4 Interconnection CableBetween the FE Electrical Ports.

Figure 5-18 shows the transmission cable connections for a GSM+UMTS base station in IPcommon transmission mode when the FE/GE electrical port on the WMPT serves as the sharedport to connect to the BSC and RNC, and the FE/GE optical ports on the GTMU and the WMPTare interconnected to implement IP common transmission.

Figure 5-18 Transmission cable connections for a GSM+UMTS base station in IP over E1common transmission mode (2)



134


Table 5-23 Transmission cables for a GSM+UMTS base station in IP over E1 commontransmission mode (2)

SN Description


T2 For details, see 5.5.5 Interconnection CableBetween FE Optical Ports.

IP Over FE Common TransmissionFigure 5-19 shows the transmission cable connections for a GSM+UMTS base station in IP co-transmission mode when the FE/GE optical port of the UMTS UTRP2 is used as the shared portsfor data transmission, and the FE/GE optical ports of the GTMU and the UMTS UTRP2 areinterconnected to implement IP co-transmission.

Figure 5-19 Transmission cable connections for a GSM+UMTS base station in IP over FEcommon transmission mode (1)


Table 5-24 Transmission cable connections for a GSM+UMTS base station in IP over FEcommon transmission mode (1)

SN Description


T2 For details, see 5.5.3 FE/GE Fiber OpticCable.

Figure 5-20 shows the transmission cable connections for a GSM+UMTS base station in IP co-transmission mode when the WMPT FE/GE optical port is used as the shared port for datatransmission, and the FE/GE electrical ports of the GTMU and the WMPT are interconnectedto implement IP co-transmission.



135

Figure 5-20 Transmission cable connections for a GSM+UMTS base station in IP over FEcommon transmission mode (2)


Table 5-25 Transmission cable connections for a GSM+UMTS base station in IP over FEcommon transmission mode (2)

SN Description



Route Backup Mode with IP Common Transmission

In a GSM+UMTS base station, the route backup mode with IP common transmission has thefollowing characteristics:

l IP transmission is applied. The GTMU and WMPT are connected to the BSC and RNCrespectively using the active channel.

l The GTMU and the WMPT are interconnected using FE ports on their panels.

l If the active channel is faulty, the standby channel takes over. After the active channel isrestored, the route is switched back to the active one.

l The bandwidth required by UMTS services is larger than the processing capability of theGSM standard transport network. Therefore, when the standby channel is used, the Qualityof Service (QoS) of only high-priority data flows can be guaranteed.

In a GSM+UMTS base station, the route backup mode with IP common transmission has thefollowing limitations:

l The route backup function is not applicable when the base station uses the IP over E1common transmission.

l The route backup mode is not applicable to the ports on the UTRPs for GSM or UMTStransmission. It is applicable only to the ports on the GTMU and WMPT panels.

l In route backup mode, the FE ports of one type on the GTMU and WMPT panels areinterconnected. The FE ports of the other type on the two boards are connected to the BSCand the RNC.

Figure 5-21 shows the transmission cable connections for a GSM+UMTS base station in routebackup mode with IP common transmission when the FE optical ports on the GTMU and WMPTare interconnected and the FE electrical ports on the two boards are connected to the BSC andRNC.



136

Figure 5-21 Transmission cable connections with FE optical ports for interconnection and FEelectrical ports connected to the BSC and RNC


Table 5-26 Transmission cables with FE optical ports for interconnection and FE electrical portsconnected to the BSC and RNC

SN Description

T1 and T2 For details, see 5.5.2 FE/GE Cable.


Figure 5-22 shows the transmission cable connections for a GSM+UMTS base station in routebackup mode with IP common transmission when the FE electrical ports on the GTMU andWMPT are interconnected and the FE optical ports on the two boards are connected to the BSCand RNC.

Figure 5-22 Transmission cable connections with FE electrical ports for interconnection andFE optical ports connected to the BSC and RNC


Table 5-27 Transmission cables with FE electrical ports for interconnection and FE optical portsconnected to the BSC and RNC

SN Description

T1 and T2 For details, see 5.5.3 FE/GE Fiber OpticCable.




137

Transmission Cable Connections in a GSM+UMTS Base Station in SeparateTransmission Mode

When a GSM+UMTS base station works in separate transmission mode, separate transmissionlinks can be configured for the GSM side and UMTS side. This section describes only two typicalmanners of the transmission cable connections in separate transmission mode.

GSM E1/T1+UMTS E1/T1Figure 5-23 shows the transmission cable connections when the E1/T1 cables are used for datatransmission on both the GSM and UMTS sides when a GSM+UMTS base station works inseparate transmission mode.

Figure 5-23 E1/T1 cable connections in separate transmission mode


Table 5-28 E1/T1 cable connections in separate transmission mode



GSM FE/GE+UMTS FE/GEFigure 5-24 shows the transmission cable connections when the FE/GE Ethernet cables are usedfor data transmission on both the GSM and UMTS sides when a GSM+UMTS base station worksin separate transmission mode.

Figure 5-24 FE/GE cable connections in separate transmission mode (1)


Table 5-29 FE/GE cable connections in separate transmission mode (1)





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Figure 5-25 shows the transmission cable connections when the FE/GE optical cables are usedfor data transmission on both the GSM and UMTS sides when a GSM+UMTS base station worksin separate transmission mode.

Figure 5-25 FE/GE cable connections in separate transmission mode (2)


Table 5-30 FE/GE cable connections in separate transmission mode (2)



Transmission Cable Connections in the GSM+UMTS Base Station in RouteBackup Transmission Mode

A GSM+UMTS base station implements IP co-transmission based on the interconnectionbetween the FE ports (optical or electrical type) on the GTMU and WMPT panels. Based on theco-transmission, route backup can be implemented. That is, four FE ports on the GTMU andWMPT panels are used. Of the four FE ports, two FE ports of one type are used forinterconnection, and the FE ports of the other type are connected to the BSC and RNC.

In a GSM+UMTS base station, the route backup transmission mode has the followingcharacteristics:

l IP transmission is applied. The GTMU and WMPT are connected to the BSC or RNCthrough the primary channel respectively.

l The GTMU and the WMPT are interconnected through FE ports on their panels.

l If the primary channel is faulty, the secondary channel takes over. After the primary channelis restored, the route is switched back to the primary one.

l The bandwidth required by UMTS services is larger than the processing capability of theGSM standard transport network. Therefore, when the secondary channel is used, theQuality of Service (QoS) of only high-priority data flows can be guaranteed.

In a GSM+UMTS base station, the following limitations on the route backup transmission modeapply:

l The route backup function is not applicable when the base station uses the IP over E1transmission.

l The route backup transmission mode is not applicable on the ports on the UTRPs for GSMand UMTS transmission. It is applicable only on the ports on the GTMU and WMPT panels.

l In route backup transmission mode, the FE ports of one type on the GTMU and WMPTpanels are interconnected. The FE ports of the other type on the two boards are connectedto the BSC and the RNC.



139

FE Optical Ports for Interconnection and FE Electrical Ports Connected to theTransport Network

Figure 5-26 shows the transmission cable connections for a GSM+UMTS base station in routebackup transmission mode when the FE optical ports on the GTMU and WMPT areinterconnected and the FE electrical ports on the two boards are connected to the BSC and RNC.

Figure 5-26 Transmission cable connections with FE optical ports for interconnection and FEelectrical ports connected to the transport network


Table 5-31 Transmission cable connections with FE optical ports for interconnection and FEelectrical ports connected to the transport network



T3 See 5.5.5 Interconnection Cable BetweenFE Optical Ports.

FE Electrical Ports for Interconnection and FE Optical Ports Connected to theTransport Network

Figure 5-27 shows the transmission cable connections for a GSM+UMTS base station in routebackup transmission mode when the FE electrical ports on the GTMU and WMPT areinterconnected and the FE optical ports on the two boards are connected to the BSC and RNC.

Figure 5-27 Transmission cable connections with FE electrical ports for interconnection andFE optical ports connected to the transport network




140

Table 5-32 Transmission cable connections with FE electrical ports for interconnection and FEoptical ports connected to the transport network



T3 See 5.5.4 Interconnection Cable Betweenthe FE Electrical Ports.

Transmission Cable Connections in the GSM+LTE Base Station in Co-Transmission Mode

A GSM+LTE base station implements IP over E1 and IP over FE/GE co-transmission based onthe interconnection between the FE ports (optical or electrical type) on the GTMU and LMPTpanels. Based on the co-transmission, route backup can be implemented. That is, four FE portson the GTMU and LMPT panels are used. Of the four FE ports, two FE ports of one type areused for interconnection, and the FE ports of the other type are connected to the transportnetwork.

IP Over E1 Common TransmissionFigure 5-28 shows the transmission cable connections for a GSM+LTE base station when theE1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GE opticalport on the LMPT is interconnected to the FE/GE optical port on the GTMU.

Figure 5-28 Transmission cable connections for a GSM+LTE base station in IP over E1 commontransmission mode (1)


Table 5-33 Transmission cables for a GSM+LTE base station in IP over E1 commontransmission mode (1)

SN Description

T1 and T2 For details, see 5.5.1 E1/T1 Cable.


Figure 5-29 shows the transmission cable connections for a GSM+LTE base station when theE1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GEelectrical port on the LMPT is interconnected to the FE/GE electrical port on the GTMU.



141

Figure 5-29 Transmission cable connections for a GSM+LTE base station in IP over E1 commontransmission mode (2)


Table 5-34 Transmission cables for a GSM+LTE base station in IP over E1 commontransmission mode (2)

SN Description



IP Over FE/GE Common Transmission

Figure 5-30 shows the transmission cable connections for a GSM+LTE base station when theFE/GE optical port on the LMPT is connected to the transmission equipment and the FE/GEelectrical port on the LMPT is interconnected to the FE/GE electrical port on the GTMU.

Figure 5-30 Transmission cable connections for a GSM+LTE base station in IP over FE/GEcommon transmission mode (1)


Table 5-35 Transmission cables for a GSM+LTE base station in IP over FE/GE commontransmission mode (1)

SN Description





142

Figure 5-31 shows the transmission cable connections for a GSM+LTE base station when theFE/GE electrical port on the LMPT is connected to the transmission equipment and the FE/GEoptical port on the LMPT is interconnected to the FE/GE optical port on the GTMU.

Figure 5-31 Transmission cable connections for a GSM+LTE base station in IP over FE/GEcommon transmission mode


Table 5-36 Transmission cables for a GSM+LTE base station in IP over FE/GE commontransmission mode

SN Description



Route Backup Mode with IP Common TransmissionIn a GSM+LTE base station, the route backup transmission mode has the followingcharacteristics:l IP transmission is applied. The GTMU and LMPT are connected to the transport network

through the primary channel.l The GTMU and the LMPT are interconnected through FE ports on their panels.l If the primary channel is faulty, the secondary channel takes over. After the primary channel

is restored, the route is switched back to the primary one.l The bandwidth required by LTE services is larger than the processing capability of the

GSM standard transport network. Therefore, when the secondary channel is used, theQuality of Service (QoS) of only high-priority data flows can be guaranteed.

In a GSM+LTE base station, the following limitations on the route backup transmission modeapply:l The route backup function is not applicable when the base station uses the IP over E1

transmission.l The route backup transmission mode is not applicable on the ports on the UTRPs for GSM

and LTE transmission. It is applicable only on the ports on the GTMU and LMPT panels.l In route backup transmission mode, the FE ports of one type on the GTMU and LMPT

panels are interconnected. The FE ports of the other type on the two boards are connectedto the transport network.

Figure 5-32 shows the transmission cable connections for a GSM+LTE base station in routebackup mode with IP common transmission when the FE electrical ports on the GTMU and



143

LMPT are interconnected and the FE optical ports on the two boards are connected to the basestation controller.

Figure 5-32 Transmission cable connections with FE electrical ports for interconnection andFE optical ports connected to the base station controller


Table 5-37 Transmission cables with FE electrical ports for interconnection and FE optical portsconnected to the base station controller

SN Description



FE Optical Ports for Interconnection and FE Electrical Ports Connected to the BSCand RNC

Figure 5-33 shows the transmission cable connections for a GSM+LTE base station in routebackup mode with IP common transmission when the FE optical ports on the GTMU and LMPTare interconnected and the FE electrical ports on the two boards are connected to the base stationcontroller.

Figure 5-33 Transmission cable connections with FE optical ports for interconnection and FEelectrical ports connected to the base station controller


Table 5-38 Transmission cables with FE optical ports for interconnection and FE electrical portsconnected to the base station controller

SN Description




144

SN Description


Transmission Cable Connections in the GSM+LTE Base Station in SeparateTransmission Mode

When a GSM+LTE base station works in separate transmission mode, separate transport linkscan be configured for the GSM side and LTE side. This section describes two typical mannersof the transmission cable connections in separate transmission mode.

GSM E1/T1+LTE FE/GE

Figure 5-34 shows the transmission cable connections for a GSM+LTE base station when theE1/T1 port (providing four E1s/T1s) on the GTMU is used for data transmission on the GSMside and the FE/GE electrical port is used for data transmission on the LTE side.

Figure 5-34 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GEmode (1)


Table 5-39 Transmission cable connections in a base station in GSM 4E1/T1+LTE FE/GE mode(1)




Figure 5-35 shows the transmission cable connections for a GSM+LTE base station when theE1/T1 port (providing four E1s/T1s) on the GTMU is used for data transmission on the GSMside and the FE/GE optical port is used for data transmission on the LTE side.




145






Figure 5-36 shows the transmission cable connections for a GSM+LTE base station when theE1/T1 port (providing four E1s/T1s) on the GTMU and the E1/T1 port (providing four E1s/T1s)on the UTRP are used for data transmission on the GSM side and the FE/GE electrical port isused for data transmission on the LTE side.







Figure 5-37 shows the transmission cable connections for a GSM+LTE base station when theE1/T1 port (providing four E1s/T1s) on the GTMU and the E1/T1 port (providing four E1s/T1s)on the UTRP are used for data transmission on the GSM side and the FE/GE optical port is usedfor data transmission on the LTE side.




146






GSM FE/GE+LTE FE/GEFigure 5-38 shows the transmission cable connections for a GSM+LTE base station in separatetransmission mode when the FE/GE electrical ports are used for data transmission on both theGSM and LTE sides.

Figure 5-38 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode(1)


Table 5-43 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode(1)



Figure 5-39 shows the transmission cable connections for a GSM+LTE base station when theFE/GE electrical port is used for data transmission on the GSM side and the FE/GE optical portis used for data transmission on the LTE side.

Figure 5-39 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode(2)




147

Table 5-44 Transmission cable connections in a base station in GSM FE/GE+LTE FE/GE mode(2)




Transmission Cable Connections in the GSM+LTE Base Station in Route BackupTransmission Mode

A GSM+LTE base station implements IP co-transmission based on the interconnection betweenthe FE ports (optical or electrical type) on the GTMU and LMPT panels. Based on the co-transmission, route backup can be implemented. That is, four FE ports on the GTMU and LMPTpanels are used. Of the four FE ports, two FE ports of one type are used for interconnection, andthe FE ports of the other type are connected to the transport network.

In a GSM+LTE base station, the route backup transmission mode has the followingcharacteristics:l IP transmission is applied. The GTMU and LMPT are connected to the transport network

through the primary channel.l The GTMU and the LMPT are interconnected through FE ports on their panels.l If the primary channel is faulty, the secondary channel takes over. After the primary channel


GSM standard transport network. Therefore, when the secondary channel is used, theQuality of Service (QoS) of only high-priority data flows can be guaranteed.

In a GSM+LTE base station, the following limitations on the route backup transmission modeapply:l The route backup function is not applicable when the base station uses the IP over E1

transmission.l The route backup transmission mode is not applicable on the ports on the UTRPs for GSM

and LTE transmission. It is applicable only on the ports on the GTMU and LMPT panels.l In route backup transmission mode, the FE ports of one type on the GTMU and LMPT



Figure 5-40 shows the transmission cable connections for a GSM+LTE base station in routebackup transmission mode when the FE optical ports on the GTMU and LMPT areinterconnected and the FE electrical ports on the two boards are connected to the transportnetwork.




148







Figure 5-41 shows the transmission cable connections for a GSM+LTE base station in routebackup transmission mode when the FE electrical ports on the GTMU and LMPT areinterconnected and the FE optical ports on the two boards are connected to the transport network.







Transmission Cable Connection in the UMTS+LTE Base Station in Co-Transmission Mode

A UMTS+LTE base station implements IP co-transmission based on the interconnectionbetween the FE ports on the WMPT and LMPT panels. Based on the co-transmission, routebackup and hybrid transmission can be implemented.



149

IP Over E1 Common Transmission

Figure 5-42 shows the transmission cable connections for a UMTS+LTE base station when theE1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GE opticalport on the LMPT is interconnected to the FE/GE optical port on the WMPT.

Figure 5-42 Transmission cable connections for a UMTS+LTE base station in IP over E1common transmission mode (1)


Table 5-47 Transmission cables for a UMTS+LTE base station in IP over E1 commontransmission mode (1)

SN Description



Figure 5-43 shows the transmission cable connections for a UMTS+LTE base station when theE1/T1 port on the LTE UTRP is connected to the transmission equipment and the FE/GEelectrical port on the LMPT is interconnected to the FE/GE electrical port on the WMPT.

Figure 5-43 Transmission cable connections for a UMTS+LTE base station in IP over E1common transmission mode (2)


Table 5-48 Transmission cables for a UMTS+LTE base station in IP over E1 commontransmission mode (2)

SN Description




150

SN Description


IP Over FE/GE Common TransmissionFigure 5-44 shows the transmission cable connections for a UMTS+LTE base station when theFE/GE optical port on the LMPT is connected to the transmission equipment and the FE/GEelectrical port on the LMPT is interconnected to the FE/GE electrical port on the WMPT.

Figure 5-44 Transmission cable connections for a UMTS+LTE base station in IP over FE/GEcommon transmission mode (1)


Table 5-49 Transmission cables for a UMTS+LTE base station in IP over FE/GE commontransmission mode (1)

SN Description



Figure 5-45 shows the transmission cable connections for a UMTS+LTE base station when theFE/GE electrical port on the LMPT is connected to the transmission equipment and the FE/GEoptical port on the LMPT is interconnected to the FE/GE optical port on the WMPT.

Figure 5-45 Transmission cable connections for a UMTS+LTE base station in IP over FE/GEcommon transmission mode




151

Table 5-50 Transmission cables for a UMTS+LTE base station in IP over FE/GE commontransmission mode

SN Description



Route Backup Mode with IP Common TransmissionIn route backup mode, the FE ports of one type (either optical or electrical ports) on the WMPTand LMPT are interconnected, and the FE ports of the other type (either optical or electricalports) on the two boards are connected to the transmission equipment.

In a UMTS+LTE base station, the route backup transmission mode has the followingcharacteristics:l IP transmission is applied. The WMPT and LMPT are connected to the transport network

through the primary channel.l The WMPT and the LMPT are interconnected through FE ports on their panels.l If the primary channel is faulty, the secondary channel takes over. After the primary channel


UMTS standard transport network. Therefore, when the secondary channel is used, theQuality of Service (QoS) of only high-priority data flows can be guaranteed.

In a UMTS+LTE base station, the following limitations on the route backup transmission modeapply:l The route backup function is not applicable when the base station uses the IP over E1

transmission.l The route backup transmission mode is not applicable on the ports on the UTRPs for UMTS

and LTE transmission. It is applicable only on the ports on the WMPT and LMPT panels.l In route backup transmission mode, the FE ports of one type on the WMPT and LMPT


Figure 5-46 shows the transmission cable connections for a UMTS+LTE base station in routebackup mode with IP common transmission when the FE electrical ports on the WMPT andLMPT are interconnected and the FE optical ports on the two boards are connected to thetransmission equipment.

Figure 5-46 Transmission cable connections for a UMTS+LTE base station in route backupmode with IP common transmission (1)



152


Table 5-51 Transmission cables for a UMTS+LTE base station in route backup mode with IPcommon transmission (1)

SN Description



Figure 5-47 shows the transmission cable connections for a UMTS+LTE base station in routebackup mode with IP common transmission when the FE optical ports on the WMPT and LMPTare interconnected and the FE electrical ports on the two boards are connected to the transmissionequipment.

Figure 5-47 Transmission cable connections for a UMTS+LTE base station in route backupmode with IP common transmission (2)


Table 5-52 Transmission cables for a UMTS+LTE base station in route backup mode with IPcommon transmission (2)

SN Description



Hybrid TransmissionIn hybrid transmission mode, the UMTS E1/T1 port and LTE FE/GE port serve as shared portsto connect to the transmission equipment. The E1/T1 port is used to transmit the services withhigh QoS requirements, such as CS services; and the FE/GE port is used to transmit the serviceswith low QoS requirements, such as PS services.

The UMTS E1/T1 port and the LTE FE/GE port are used for data transmission in a UMTS+LTEbase station in hybrid transmission mode. When the UMTS FE/GE port and the LTE FE/GEport are used for data transmission, hybrid transmission is not applicable.



153

Figure 5-48 shows the transmission cable connections in hybrid transmission mode (UMTS E1/T1 port + LTE FE/GE optical port).

Figure 5-48 Transmission cable connections in hybrid transmission mode (1)


Table 5-53 Transmission cables in hybrid transmission mode (1)

SN Description




Figure 5-49 shows the transmission cable connections in hybrid transmission mode (UMTS E1/T1 port + LTE FE/GE electrical port).

Figure 5-49 Transmission cable connections in hybrid transmission mode (2)


Table 5-54 Transmission cables in hybrid transmission mode (2)

SN Description






154

Transmission Cable Connection in the UMTS+LTE Base Station in SeparateTransmission Mode

When a UMTS+LTE base station works in separate transmission mode, separate transport linkscan be configured for the UMTS side and the LTE side. This section describes two typicalmanners of the transmission cable connections in separate transmission mode.

UMTS E1/T1+LTE FE/GEFigure 5-50 shows the transmission cable connections for a UMTS+LTE base station when theE1/T1 port (providing four E1s/T1s) on the WMPT is used for data transmission on the UMTSside and the FE/GE electrical port is used for data transmission on the LTE side.

Figure 5-50 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GEmode (1)


Table 5-55 Transmission cable connections in a base station in UMTS 4E1/T1+LTE FE/GEmode (1)




Figure 5-51 shows the transmission cable connections for a UMTS+LTE base station when theE1/T1 port (providing four E1s/T1s) on the WMPT is used for data transmission on the UMTSside and the FE/GE optical port is used for data transmission on the LTE side.





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Figure 5-52 shows the transmission cable connections for a UMTS+LTE base station when theE1/T1 port (providing eight E1s/T1s) on the UTRP3 or UTRP4 is used for data transmission onthe UMTS side and the FE/GE electrical port is used for data transmission on the LTE side.







Figure 5-53 shows the transmission cable connections for a UMTS+LTE base station when theE1/T1 port (providing eight E1s/T1s) on the UTRP3 or UTRP4 is used for data transmission onthe UMTS side and the FE/GE optical port is used for data transmission on the LTE side.





156





UMTS FE/GE+LTE FE/GEFigure 5-54 shows the transmission cable connections for a UMTS+LTE base station in separatetransmission mode when the FE/GE ports are used for data transmission on both the UMTS andLTE sides.

Figure 5-54 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GEmode (1)


Table 5-59 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GEmode (1)



Figure 5-55 shows the transmission cable connections for a UMTS+LTE base station when theFE/GE electrical port is used for data transmission on the UMTS side and the FE/GE opticalport is used for data transmission on the LTE side.

Figure 5-55 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GEmode (2)




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Table 5-60 Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GEmode (2)




Transmission Cable Connection in the UMTS+LTE Base Station in Route BackupTransmission Mode

A UMTS+LTE base station implements IP co-transmission based on the interconnectionbetween the FE ports (optical or electrical type) on the WMPT and LMPT panels. Based on theco-transmission, route backup can be implemented. That is, four FE ports on the WMPT andLMPT panels are used. Of the four FE ports, two FE ports of one type are used forinterconnection, and the FE ports of the other type are connected to the transport network.

In a UMTS+LTE base station, the route backup transmission mode has the followingcharacteristics:l IP transmission is applied. The WMPT and LMPT are connected to the transport network

through the primary channel.l The WMPT and the LMPT are interconnected through FE ports on their panels.l If the primary channel is faulty, the secondary channel takes over. After the primary channel


UMTS standard transport network. Therefore, when the secondary channel is used, theQuality of Service (QoS) of only high-priority data flows can be guaranteed.

In a UMTS+LTE base station, the following limitations on the route backup transmission modeapply:l The route backup function is not applicable when the base station uses the IP over E1

transmission.l The route backup transmission mode is not applicable on the ports on the UTRPs for UMTS

and LTE transmission. It is applicable only on the ports on the WMPT and LMPT panels.l In route backup transmission mode, the FE ports of one type on the WMPT and LMPT



Figure 5-56 shows the transmission cable connections for a UMTS+LTE base station in routebackup transmission mode when the FE optical ports on the WMPT and LMPT areinterconnected and the FE electrical ports on the two boards are connected to the transportnetwork.



158








Figure 5-57 shows the transmission cable connections for a UMTS+LTE base station in routebackup transmission mode when the FE electrical ports on the WMPT and LMPT areinterconnected and the FE optical ports on the two boards are connected to the transport network.









159

Transmission Cable Connection in the UMTS+LTE Base Station in HybridTransmission Mode

A UMTS+LTE base station implements IP co-transmission based on the interconnectionbetween the FE ports on the WMPT and LMPT panels. Based on the co-transmission, hybridtransmission can be implemented. That is, the UMTS E1/T1 port and LTE FE/GE port are usedas shared ports for data transmission. The E1/T1 port is used to transmit the services with highQoS requirements, such as CS services. The FE/GE port is used to transmit the services withlow QoS requirements, such as PS services.

The UMTS E1/T1 port and the LTE FE/GE port are used for data transmission in a UMTS+LTEbase station in hybrid transmission. When the UMTS FE/GE port and the LTE FE/GE port areused for data transmission, hybrid transmission is not applicable.

UMTS E1/T1 Port and LTE FE/GE Electrical Port for Data TransmissionFigure 5-58 shows the transmission cable connections for a UMTS+LTE base station in hybridtransmission mode when the UMTS E1/T1 port and the LTE FE/GE electrical port are used fordata transmission.

Figure 5-58 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTEFE/GE electrical port)


Table 5-63 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTEFE/GE electrical port)





UMTS E1/T1 Port and LTE FE/GE Optical Port for Data TransmissionFigure 5-59 shows the transmission cable connections for a UMTS+LTE base station in hybridtransmission mode when the UMTS E1/T1 port and the LTE FE/GE optical port are used fordata transmission.

Figure 5-59 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTEFE/GE optical port)



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Table 5-64 Transmission cable connections for hybrid transmission (UMTS E1/T1 port + LTEFE/GE optical port)





5.2.3 CPRI Cable ConnectionsThe CPRI cables are connected in star or chain topology. In star topology, each RFU is connectedto the BBU separately. In chain topology, the RFUs are cascaded before connected to the BBU.

CPRI Cable Connections for a GSM Only Base StationFigure 5-60 and Figure 5-61 show the CPRI cable connections of the DRFU/GRFU.

Figure 5-60 Star topology



161

Figure 5-61 Chain topology

CPRI Cable Connections for a UMTS Only Base StationFigure 5-62 shows the star topology of the WRFUs over CPRI ports when the WRFUs work insingle-band mode and support not more than three sectors in a base station with MIMO notsupported.

Figure 5-62 Star topology over CPRI ports

When the WRFUs work in single-band mode and support not more than three sectors (twoWRFUs for each sector) in a base station with MIMO supported, or when the bandwidth andcarriers are expanded, the CPRI ports are connected in chain topology, as shown in Figure5-63 and Figure 5-64.



162

Figure 5-63 Chain topology over CPRI ports

Figure 5-64 Chain topology over CPRI ports on the WBBPd

CPRI Cable Connections for an LTE Only Base StationFigure 5-65 shows the CPRI cable connections in the 3 x 10 MHz 2T2R configuration.



163

Figure 5-65 CPRI cable connections in the 3 x 10 MHz 2T2R configuration

Figure 5-66 shows the CPRI cable connections in the 3 x 20 MHz 2T2R configuration.





164




CPRI Cable Connections for a GSM+UMTS Base Station

CPRI Cable Connections in the Co-Module GSM+UMTS Base StationWhen the MRFUs support not more than three sectors, one WBBPb is configured. When theMRFUs support more than three sectors, two WBBPbs or one WBBPd are configured.

When the MRFUs work in single-band mode and support three sectors, the CPRI ports areconnected in dual-star topology, as shown in Figure 5-69 and Figure 5-70.



165

Figure 5-69 Dual-star topology over CPRI ports (1)


When the MRFUs work in single-band mode and support more than three sectors, the CPRIports are connected in dual-star topology, as shown in Figure 5-71 and Figure 5-72.




166


CPRI Cable Connections in the Co-Cabinet GSM+UMTS Base Station

When a GSM+UMTS base station works in co-cabinet mode, the base station supports amaximum of 12 RFUs.

Figure 5-73 and Figure 5-74 show the CPRI cable connections in a base station in co-cabinetmode.

Figure 5-73 CPRI cable connections in a co-cabinet base station with WRFUs and DRFUs/GRFUs (1)



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Figure 5-74 CPRI cable connections in a co-cabinet base station with WRFUs and DRFUs/GRFUs (2)

When the MRFUs work in dual-mode and support three sectors and when the WRFU supportthree sectors in a base station with MIMO not supported, the CPRI cables are connected in themanner shown in Figure 5-75.



168

Figure 5-75 CPRI cable connections in a co-cabinet base station with MRFUs and WRFUs (1)

When the MRFUs work in dual-mode and support three sectors and when the WRFU supportthree sectors in a base station with MIMO supported, the CPRI cables are connected in themanner shown in Figure 5-76.

Figure 5-76 CPRI cable connections in a co-cabinet base station with MRFUs and WRFUs (2)



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When the MRFUs work in dual-mode and support three sectors, and the number of DRFUs/GRFUs is more than three, the UBRI is required. In this case, the CPRI cables are connected inthe manner shown in Figure 5-77.

Figure 5-77 CPRI cable connections in a co-cabinet base station with MRFUs and DRFUs/GRFUs

CPRI Cable Connections for a GSM+LTE Base Station

CPRI Cable Connections in the Co-Module GSM+LTE Base StationThe MRFUs working in GSM+LTE mode are connected in the dual-star topology, as shown inFigure 5-78.



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Figure 5-78 Dual-star topology over CPRI ports

CPRI Cable Connections in the Co-Cabinet GSM+UMTS Base StationFigure 5-79 shows the CPRI cable connections in a base station in co-cabinet mode.

Figure 5-79 CPRI cable connections in co-cabinet mode



171

CPRI Cable Connections for a UMTS+LTE Base StationThe WRFUs and LRFUs in a UMTS+LTE base station use the same CPRI cable connection asthe RFUs in a UMTS only base station and LTE only base station respectively, as shown inFigure 5-80.

Figure 5-80 CPRI port connection principles

CPRI Cable Connections for a GU+LO Base Station

CPRI Cable Connections for a 6GU+3UO+3LO Base StationFigure 5-81 shows the CPRI cable connections for a base station configured with six GSM+UMTS RFUs, three UMTS only RFUs, and three LTE only RFUs.



172

Figure 5-81 CPRI cable connections for a base station configured with six GSM+UMTS RFUs,three UMTS only RFUs, and three LTE only RFUs

CPRI Cable Connections for a 6GU+3GO+3LO Base StationFigure 5-82 shows the CPRI cable connections for a base station configured with six GSM+UMTS RFUs, three GSM only RFUs, and three LTE only RFUs.



173

Figure 5-82 CPRI cable connections for a base station configured with six GSM+UMTS RFUs,three GSM only RFUs, and three LTE only RFUs

CPRI Cable Connections for a 3GO+3UO (MIMO)+3LO Base StationFigure 5-83 shows the CPRI cable connections for a base station configured with three GSMonly RFUs, three UMTS only RFUs (supporting MIMO), and three LTE only RFUs.



174

Figure 5-83 CPRI cable connections for a base station configured with three GSM only RFUs,three UMTS only RFUs (supporting MIMO), and three LTE only RFUs

CPRI Cable Connections for a GL+UO Base Station

CPRI Cable Connections for a 6GL+3UO (MIMO) Base StationFigure 5-84 shows the CPRI cable connections for a base station configured with six GSM+LTERFUs and three UMTS only RFUs (supporting MIMO).



175

Figure 5-84 CPRI cable connections for a base station configured with six GSM+LTE RFUsand three UMTS only RFUs (supporting MIMO)

CPRI Cable Connections for a 3GO+6GL+3UO Base StationFigure 5-85 shows the CPRI cable connections for a base station configured with three GSMonly RFUs, six GSM+LTE RFUs, and three UMTS only RFUs.



176

Figure 5-85 CPRI cable connections for a base station configured with three GSM only RFUs,six GSM+LTE RFUs, and three UMTS only RFUs

5.2.4 Monitoring Signal Cable ConnectionsThis section describes the signal cable connections of a BTS3900L cabinet.

By default, the BTS3900L cabinet is installed with one BBU, supporting a maximum of 16 drycontact alarm inputs and four RS485 monitoring signal inputs. Figure 5-86 shows the signalcable connections of a BTS3900L cabinet.

The signal cable connections for two BBUs in triple mode are the same as those for a singleBBU in single mode or dual mode. This document uses the configuration of a single BBU as anexample.



177

Figure 5-86 Signal cable connections of a BTS3900L cabinet

Table 5-65 describes the signal cables of a BTS3900L cabinet.

Table 5-65 Signal cables of a BTS3900L cabinet

SN Description

S1 For details, see 5.7.1 Monitoring SignalCable for the Fan Box.

S2 For details, see 5.7.6 Signal Cable for theELU.

S3 For details, see 5.7.2 Fan Box CascadeSignal Cable.

S4,S5 For details, see 5.7.7 Monitoring SignalCable for the GATM.



178

5.2.5 RF Cable ConnectionsThis section describes the RF cable connections for various types of RF modules.

RF Cable Connections for DRFUsThe DRFU supports two carriers.

The following description is based on the RF cable connections for DRFUs with a single sector.

Cable Connections in 1T2R ModeWith one RX channel and two TX channels, the following items are configured for one carrier:l A pair of dual-polarized antennasl One DRFUFigure 5-87 describes the RF cable connections.

Figure 5-87 Cable connections in 1T2R mode (1)

With one RX channel and two TX channels, the following items are configured for two carriers:l A pair of dual-polarized antennasl One DRFUFigure 5-87 shows the RF cable connections.

With one RX channel and two TX channels, the following items are configured for four carriers:



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l A pair of dual-polarized antennasl Two DRFUsFigure 5-88 describes the RF cable connections.


Cable Connections in 2T2R ModeWith two RX channels and two TX channels, the following items are configured for one carrier:l A pair of dual-polarized antennasl One DRFUFigure 5-87 shows the RF cable connections.

With two RX channels and two TX channels, the following items are configured for two carriers:l A pair of dual-polarized antennasl Two DRFUsFigure 5-88 shows the RF cable connections.

RF Cable Connections for GRFUsThe GRFU supports six carriers.

The following description is based on the RF cable connections for GRFUs with a single sector.

The GRFU supports only the 1T2R configuration.



180

Cable Connections with Three CarriersThe following items are configured for three carriers:l A pair of dual-polarized antennasl One GRFUFigure 5-89 describes the RF cable connections.

Figure 5-89 Cable connections with three carriers

Cable Connections with Nine CarriersThe following items are configured for nine carriers:l A pair of dual-polarized antennasl Two GRFUsFigure 5-90 describes the RF cable connections.



181

Figure 5-90 Cable Connections with Nine Carriers

Cable Connections with 14 CarriersThe following items are configured for 14 carriers:l Two pairs of dual-polarized antennasl Three GRFUsFigure 5-91 describes the RF cable connections.



182

Figure 5-91 Cable connections with 14 carriers

Cable Connections with 24 CarriersThe following items are configured for 24 carriers:l Two pairs of dual-polarized antennasl Four GRFUsFigure 5-92 describes the RF cable connections.



183

Figure 5-92 Cable connections with 24 carriers

RF Cable Connections for WRFUsThe WRFU supports four carriers.

The following description is based on the RF cable connections for WRFUs with a single sector.

Cable Connections in 1T2R ModeWith one RX channel and two TX channels, the following items are configured for one to fourcarriers:l A pair of dual-polarized antennasl One WRFUFigure 5-93 describes the RF cable connections.



184


With one RX channel and two TX channels, the following items are configured for five to eightcarriers:l A pair of dual-polarized antennasl Two WRFUsFigure 5-94 describes the RF cable connections.



185


Cable Connections in 2T2R ModeWith two RX channels and two TX channels, the following items are configured for one to fourcarriers:l A pair of dual-polarized antennasl Two WRFUsFigure 5-94 shows the RF cable connections.

Cable Connections in 2T4R ModeWith two RX channels and four TX channels, the following items are configured for one to fourcarriers:l Two pairs of dual-polarized antennasl Two WRFUsFigure 5-95 describes the RF cable connections.



186

Figure 5-95 Cable connections in 2T4R mode

Cable Connections in 2x2 MIMO ModeThe base station in UMTS only mode supports 2x2 MIMO. Figure 5-94 shows the cableconnections.

RF Cable Connections for WRFUdThe WRFUd supports a maximum of six carriers.

The following description is based on the RF cable connections for WRFUds with a single sector.

Cable Connections in 2T2R ModeWith two RX channels and two TX channels, the following items are configured for one to fourcarriers:l A pair of dual-polarized antennasl One WRFUdFigure 5-96 shows the RF cable connections.



187

Figure 5-96 Cable connections in 2T2R (I)

With two RX channels and two TX channels, the following items are configured for five to eightcarriers:l A pair of dual-polarized antennasl Two WRFUds.

Cable Connections in 4T4R ModeWith four RX channels and four TX channels, the following items are configured for one to fourcarriers:l Two pairs of dual-polarized antennasl Two WRFUdsFigure 5-97 shows the RF cable connections.



188

Figure 5-97 Cable connections in 4T4R mode (II)

RF Cable Connections for LRFUsThe LRFU supports a single carrier.

The following description is based on the RF cable connections for LRFUs supporting a singlesector.

The LRFU supports only the 2T2R configuration.

RF Cable Connections in 2T2R ModeIn 2T2R mode, the following items are configured:l A dual-polarized antennal An LRFUFigure 5-98 shows RF cable connections.



189

Figure 5-98 RF cable connections in 2T2R mode

RF Cable Connections in 4T4R modeIn 4T4R mode, the following items are configured:l Two dual-polarized antennasl Two LRFUsFigure 5-99 shows RF cable connections.



190

Figure 5-99 RF cable connections in 4T4R mode

RF Cable Connections for LRFUeThe LRFUe supports one carrier.

The following description is based on the RF cable connections for LRFUes with a single sector.

Cable Connections in 2T2R ModeWith two RX channels and two TX channels, the following items are configured for one to fourcarriers:l A pair of dual-polarized antennasl One LRFUeFigure 5-100 shows the RF cable connections.



191

Figure 5-100 Cable connections in 2T2R (I)

Cable Connections in 4T4R ModeWith four RX channels and four TX channels, the following items are configured for one to fourcarriers:l Two pairs of dual-polarized antennasl Two LRFUesFigure 5-101 shows the RF cable connections.



192


RF Cable Connections for MRFUsThe MRFU supports six carriers.

The following description is based on the RF cable connections for MRFUs supporting a singlesector.

The MRFU supports only the 1T2R configuration.

RF Cable Connections in G3U1 modeWhen three GSM carriers and one UMTS carrier are configured, the following items arerequired:l A dual-polarized antennal An MRFUFigure 5-102 shows RF cable connections.



193

Figure 5-102 RF cable connections in G3U1 mode

RF Cable Connections in G9U1 modeWhen nine GSM carriers and one UMTS carrier are configured, the following items are required:l A dual-polarized antennal Two MRFUsFigure 5-103 shows RF cable connections.



194

Figure 5-103 RF cable connections in G9U1 mode

RF Cable Connections in G2U2 Mode

When two GSM carriers and two UMTS carriers are configured, the following items are required:

l A dual-polarized antenna

l An MRFU

Figure 5-102 shows RF cable connections.

RF Cable Connections in G6U2 Mode

When six GSM carriers and two UMTS carriers are configured, the following items are required:


l Two MRFUs


RF Cable Connections in G4L1 MIMO Mode

When the MRFU works in LTE 2T2R MIMO mode, with four GSM carriers and one LTE carrierconfigured, the following items are required:


l Two MRFUs




195

RF Cable Connections in G8L1 MIMO Mode

When the MRFU works in LTE 2T2R MIMO mode, with eight GSM carriers and one LTEcarrier configured, the following items are required:


l Two MRFUs


RF Cable Connections for MRFUd

The MRFUd supports a maximum of eight GSM carriers, six UMTS carriers, or two LTEcarriers.

The following description is based on the RF cable connections for MRFUds with a single sector.

Cable Connections in 2T2R Mode

With two RX channels and two TX channels, the following items are configured:

l A pair of dual-polarized antennas

l One MRFUd

Figure 5-104 shows the RF cable connections.

Figure 5-104 Cable connections in 2T2R



196


With four RX channels and four TX channels, the following items are configured:

l Two pairs of dual-polarized antennas

l Two MRFUds


Figure 5-105 Cable connections in 4T4R mode

RF Cable Connections for MRFUe

The MRFUe supports a maximum of eight GSM carriers, four UMTS carriers, or two LTEcarriers.

The following description is based on the RF cable connections for MRFUes with a single sector.


With two RX channels and one TX channel, the following items are configured:

l A pair of dual-polarized antennas

l One MRFUe




197


Cable Connections in 2T4R ModeWith four RX channels and two TX channels, the following items are configured:l Two pairs of dual-polarized antennasl Two MRFUesFigure 5-107 shows the RF cable connections.



198


RF Cable Connections for MRFU V3In single mode, the MRFU V3 supports a maximum of six GSM carriers, four UMTS carriers,or two LTE carriers. In GU or GL dual mode, the MRFU V3 supports a maximum of six carriers.

The following description is based on the RF cable connections for MRFU V3s with a singlesector.

Cable Connections in 1T2R ModeWith two RX channels and one TX channel, the following items are configured:l A pair of dual-polarized antennasl One MRFU V3Figure 5-108 shows the RF cable connections.



199


Cable Connections in 2T4R ModeWith four RX channels and two TX channels, the following items are configured:l Two pairs of dual-polarized antennasl Two MRFU V3sFigure 5-109 shows the RF cable connections.



200


5.3 PGND CablesThe PGND cables are used to ensure proper grounding of the cabinet and the modules in thecabinet.

PGND Cable for the CabinetThe PGND cable for the cabinet is green and yellow with a cross-sectional area of 25 mm2.Figure 5-110 shows the PGND cable for the cabinet.

Figure 5-110 PGND cable for the cabinet

(1) OT terminal (25 mm2, M8)

PGND Cable for the ModulesThe PGND cable for the modules is green and yellow with a cross-sectional area of 6 mm2.Figure 5-111 shows the PGND cable for the modules.



201

Figure 5-111 PGND cable for the modules

(1) OT terminal (6 mm2, M4)

5.4 Power CableThis section describes the power cable of the BTS3900L, which consists of the power cables forthe BTS3900L cabinet, BBU3900, Fan box, and RFU.

5.4.1 Input Power Cables for the CabinetThe input power cable is used to feed -48 V DC power into the BTS3900L cabinet.

ExteriorFigure 5-112 shows the input power cables for the cabinet.

Figure 5-112 Input power cables for the cabinet

(1) OT terminal

DescriptionTable 5-66 shows the input power cables for the cabinet.

Table 5-66 Input power cables for the cabinet

Cable Color Cross-SectionalArea

Aperture of the OTTerminal

Input power cablesfor the cabinet

Blue 35 mm2 for 1 X160A16 mm2 for 2 X80A

M8M6Black



202

NOTE

The input power cables consists of two pairs of cables, with each pair containing a blue wire and a blackwire.

5.4.2 BBU Power CableThrough a BBU power cable, the DCDU-11A feeds -48 V DC power into a BBU.

Exterior

Figure 5-113 shows a BBU power cable.

Figure 5-113 BBU power cable

(1) 3V3 power connector (2) Tool-less female power connector (pressfit type)

Pin Assignment

Table 5-67 describes the pin assignment for the wires of the BBU power cable.

Table 5-67 Pin assignment for the wires of the BBU power cable

Wire X1 End X2 End Color

Most Area Other Area

W1 A3 B1 Black Blue

W2 A1 B2 Blue Grey

5.4.3 Power Cable for the FAN BoxThe power cable for the FAN box feeds -48 V DC power into the fan box.

Exterior

Figure 5-114 shows a power cable for the fan box.



203

Figure 5-114 Power cable for the fan box


Pin AssignmentTable 5-68 describes the pin assignment for the wires of the power cable for the fan box.

Table 5-68 Pin assignment for the wires of the power cable for the fan box



W1 A3 B1 Black Blue

W2 A1 B2 Blue Grey

5.4.4 RFU Power CableThe RFU power cable feeds -48 V DC power into the RFU.

ExteriorFigure 5-115 shows an RFU power cable.

Figure 5-115 RFU power cable




204

Pin AssignmentTable 5-69 describes the pin assignment for the wires of the RFU power cable.

Table 5-69 Pin assignment for the wires of the RFU power cable



W1 A3 B1 Black Blue

W2 A1 B2 Blue Grey

5.4.5 GATM Power CableThe GATM power cable feeds -48 V DC power into the GATM.

ExteriorFigure 5-116 shows a GATM power cable.

Figure 5-116 GATM power cable


Pin AssignmentTable 5-70 describes the pin assignment for the wires of the GATM power cable.

Table 5-70 Pin assignment for the wires of the GATM power cable



W1 A1 B2 Blue Grey

W2 A3 B1 Black Blue



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5.5 Transmission CableThis describes the BTS3900L transmission cable, which consists of the E1 cable, FE cable, FEOptical Cable, Cable Between two FE Electrical Ports, and Cable Between two FE Optical Ports.

5.5.1 E1/T1 CableAn E1/T1 cable transmits baseband signals from BBU to the external transmission equipment.

Exterior

The E1/T1 cable is of three types: 75-ohm E1 coaxial cable, 120-ohm E1 twisted pair cable, and120-ohm T1 twisted pair cable.

One end of the E1 cable is a DB26 male connector. The connector at the other end of the cableis prepared on site based on site requirements. Figure 5-117 shows an E1/T1 cable.

Figure 5-117 E1/T1 signal cable

(1) DB26 male connector

Table 5-71 lists different types of 75 ohm E1 coaxial cables.

Table 5-71 Different types of 75 ohm E1 coaxial cables

Cable One End The Other End

75 ohm E1 coaxial cable DB26 male connector L9 male connector

L9 female connector

SMB female connector

BNC male connector

SMZ male connector

SMZ female connector



206

Pin Assignment

Table 5-72, Table 5-73, and Table 5-74 describe the pin assignment for the wires of the E1/T1cable.

NOTE

In Table 5-72, "Tip" refers to a wire in the E1 coaxial cable and "Ring" refers to an external conductor ofthe cable.

Table 5-72 Pin assignment for the wires of the 75-ohm E1 coaxial cable

Pin on the DB26Male Connector

Type Coaxial Unit No. Wire Label

X1.1 Tip 1 RX1+

X1.2 Ring RX1-

X1.3 Tip 3 RX2+

X1.4 Ring RX2-

X1.5 Tip 5 RX3+

X1.6 Ring RX3-

X1.7 Tip 7 RX4+

X1.8 Ring RX4-

X1.19 Tip 2 TX1+

X1.20 Ring TX1-

X1.21 Tip 4 TX2+

X1.22 Ring TX2-

X1.23 Tip 6 TX3+

X1.24 Ring TX3-

X1.25 Tip 8 TX4+

X1.26 Ring TX4-

Table 5-73 Pin assignment for the wires of the 120-ohm E1 twisted pair cable


Wire Color Wire Type Wire Label

X.1 Blue Twisted pair RX1+

X.2 White RX1-

X.3 Orange Twisted pair RX2+



207



X.4 White RX2-

X.5 Green Twisted pair RX3+

X.6 White RX3-

X.7 Brown Twisted pair RX4+

X.8 White RX4-

X.19 Gray Twisted pair TX1+

X.20 White TX1-

X.21 Blue Twisted pair TX2+

X.22 Red TX2-

X.23 Orange Twisted pair TX3+

X.24 Red TX3-

X.25 Green Twisted pair TX4+

X.26 Red TX4-

Table 5-74 Pin assignment for the wires of the 100-ohm T1 twisted pair cable



X.1 Blue and white Twisted pair RX1+

X.2 White and blue RX1-

X.3 Orange and white Twisted pair RX2+

X.4 White and orange RX2-

X.5 Green and white Twisted pair RX3+

X.6 White and green RX3-

X.7 Brown and white Twisted pair RX4+

X.8 White and brown RX4-

X.19 Gray and white Twisted pair TX1+

X.20 White and gray TX1-

X.21 Blue and red Twisted pair TX2+

X.22 Red and blue TX2-



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X.23 Orange and red Twisted pair TX3+

X.24 Red and orange TX3-

X.25 Green and red Twisted pair TX4+

X.26 Red and green TX4-

5.5.2 FE/GE CableThe FE/GE cable connects the BBU to the external transmission equipment through routingequipment. It transmits baseband signals.

NOTEThe maximum transmission distance of an FE/GE cable is 100 m (328.08 ft).

Exterior

The FE/GE cable is a shielded straight-through cable, which has an RJ45 connector at each end.Figure 5-118 shows an FE/GE cable.

Figure 5-118 FE/GE cable

(1) RJ45 connector

Pin Assignment

Table 5-75 describes the pin assignment for the wires of the FE/GE cable.

Table 5-75 Pin assignment for the wires of the FE/GE cable

Pin on the RJ45Connector

Wire Color Wire Type Pin on the RJ45 Connector

X1.2 Orange Twisted pair X2.2

X1.1 White andorange

X2.1

X1.6 Green Twisted pair X2.6



209

Pin on the RJ45Connector

Wire Color Wire Type Pin on the RJ45 Connector

X1.3 White andgreen

X2.3

X1.4 Blue Twisted pair X2.4

X1.5 White and blue X2.5

X1.8 Brown Twisted pair X2.8

X1.7 White andbrown

X2.7

5.5.3 FE/GE Fiber Optic CableAn FE/GE fiber optic cable transmits optical signals between the BBU3900 and the transmissionequipment. This cable is optional.

Exterior

The FE/GE fiber optic cable has an LC connector at one end and an FC connector, SC connector,or LC connector at the other end, as shown in Figure 5-119, Figure 5-120, Figure 5-121.

Figure 5-119 FE/GE fiber optic cable (with the FC and LC connectors)

Figure 5-120 FE/GE fiber optic cable (with the SC and LC connectors)

Figure 5-121 FE/GE fiber optic cable (with the LC connectors)



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CAUTIONTo connect a BBU3900 and a transmission device by using FE/GE optical fiber patch cords,adhere to the following rules:l The TX port on the BBU3900 must be connected to the RX port on the transmission

equipment.l The RX port on the BBU3900 must be connected to the TX port on the transmission

equipment.

5.5.4 Interconnection Cable Between the FE Electrical PortsThis cable connects the FE electrical ports on the GTMU and WMPT to achieve co-transmissionin IP mode.

ExteriorThe interconnection cable between the FE electrical ports has an RJ45 connector at each end,as shown in Figure 5-122.

Figure 5-122 Interconnection cable between FE electrical ports

(1) RJ45 connector

5.5.5 Interconnection Cable Between FE Optical PortsThis cable connects the FE optical ports on the GTMU and WMPT to achieve co-transmissionin IP mode.

ExteriorThe interconnection cable between the FE optical ports has an LC connector at each end, asshown in Figure 5-123.

Figure 5-123 Interconnection cable between FE optical ports

(1) LC connector



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5.6 CPRI Electrical CableThe CPRI electrical cable enables high speed communication between the BBU3900 and theRFU.

ExteriorThe CPRI electrical cable is an SFP high speed transmission cable that has an SFP20 maleconnector at each end, as shown in Figure 5-124.

Figure 5-124 CPRI electrical cable

5.7 Signal CableThis section describes the BTS3900L signal cable, which consists of monitoring signal cablefor the FAN unit, monitoring signal cable for the EMU, BBU alarm cable, GPS signal cable,and signal cable for the ELU.

5.7.1 Monitoring Signal Cable for the Fan BoxThe monitoring signal cable for the fan box is used for the BBU to monitor the running statusof the fan box.

ExteriorFigure 5-125 shows the monitoring signal cable for the fan box.

Figure 5-125 Monitoring signal cable for the fan box

(1) RJ45 connector

Pin AssignmentTable 5-76 describes the pin assignment for the wires of the monitoring signal cable for the fanbox.



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Table 5-76 Pin assignment for the wires of the monitoring signal cable for the fan box

X1 End X2 End Color Type

X1.1 X2.1 White Twisted pair cable

X1.2 X2.2 Orange


X1.6 X2.6 Green


X1.4 X2.4 Blue


X1.8 X2.8 Brown

5.7.2 Fan Box Cascade Signal CableFan box cascade signal cable is used to connect two fan boxes.

Structure

Figure 5-126 shows the fan box cascade signal cable.

Figure 5-126 Fan box cascade signal cable

(1) RJ45 connector

Pin Assignment

Table 5-77 describes the pin assignment of the fan box cascade signal cable.

Table 5-77 Pin assignment of the fan box cascade signal cable



X1.2 X2.2 Orange




213


X1.6 X2.6 Green


X1.4 X2.4 Blue


X1.8 X2.8 Brown

5.7.3 Monitoring Signal Cable for the EMUThe monitoring signal cable for the EMU transmits monitoring signals from the EMU to theBBU.

ExteriorFigure 5-127 shows the monitoring signal cable for the EMU.

Figure 5-127 Monitoring signal cable for the EMU

(1) RJ45 connector (2) DB9 male connector

Pin AssignmentTable 5-78 describes the pin assignment for the wires of the monitoring signal cable for theEMU.

Table 5-78 Pin assignment for the wires of the monitoring signal cable for the EMU

Pin on theRJ-45Connector


Wire Color Wire Type Label

X1.1 X2.3 White Twisted pair TX+

X1.2 X2.7 Orange TX-

X1.5 X2.6 White Twisted pair RX-

X1.4 X2.2 Blue RX+



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5.7.4 BBU Alarm CableA BBU alarm cable transmits alarm signals from external alarm equipment to a BBU.

ExteriorThe BBU alarm cable has an RJ45 connector at each end, as shown in Figure 5-128. One RJ45connector at one end, however, may be removed and an appropriate terminal may be addedaccording to the field requirements.

Figure 5-128 BBU alarm cable

(1) RJ45 connector

Pin AssignmentTable 5-79 shows the wire sequence of the BBU alarm cable.

Table 5-79 Pin assignment for the wires of the BBU alarm cable

BBUAlarmPort

Pin on theRJ45Connector

WireColor

WireType


Description

EXT-ALM1


Twistedpair

X2.1 Boolean input 4+

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

X1.3 White andgreen

Twistedpair


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

X1.5 White andblue

Twistedpair


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

X1.7 White andbrown

Twistedpair


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

EXT-ALM0


Twistedpair




215

BBUAlarmPort


WireColor

WireType


Description

X1.2 Orange X2.2 Boolean input 0+(GND)

X1.3 White andgreen

Twistedpair


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

X1.5 White andblue

Twistedpair


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

X1.7 White andbrown

Twistedpair


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

5.7.5 GPS Clock Signal CableThe GPS clock signal cable is used to transmit GPS clock signals from the GPS antenna systemto the BBU. The GPS clock signals serve as the clock reference of the BBU. This cable isoptional.

ExteriorThe GPS clock signal cable has an SMA male connector at one end and an N-type femaleconnector at the other end, as shown in Figure 5-129.

Figure 5-129 GPS clock signal cable

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



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5.7.6 Signal Cable for the ELUThe signal cable for the ELU is used to report the cabinet type information detected by the ELUto the fan box.

ExteriorFigure 5-130 shows the signal cable for the ELU.

Figure 5-130 Signal cable for the ELU

(1) RJ45 connector

Pin AssignmentTable 5-80 describes the pin assignment for the wires of the signal cable for the ELU.

Table 5-80 Pin assignment for the wires of the signal cable for the ELU

X1 End X2 End Wire Color Wire Type

X1.1 X2.1 White Twisted pair

X1.2 X2.2 Orange


X1.6 X2.6 Green


X1.4 X2.4 Blue


X1.8 X2.8 Brown

5.7.7 Monitoring Signal Cable for the GATMThis cable connects the BBU and GATM, enabling the BBU to transmit control signals to theGATM and enabling the GATM to report alarms to the BBU.

StructureFigure 5-131 shows the monitoring signal cable for the GATM.



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Figure 5-131 Monitoring signal cable for the GATM

(1) RJ45 connector

Pin Assignment

Table 5-81 describes the pin assignment for the wires of the monitoring signal cable for theGATM.

Table 5-81 Pin assignment for the wires of the monitoring signal cable for the GATM

X1 End X2 End Wire Color Wire Type


X1.2 X2.2 Orange


X1.6 X2.6 Green


X1.4 X2.4 Blue


X1.8 X2.8 Brown

5.8 RF CableThis section describes the BTS3900L RF cable, which consists of the RF jumper and inter-RFURF signal cable.

5.8.1 RF JumperThe RF jumper connects the RFU and the feeder of the antenna system for signal exchangebetween the base station and the antenna system.

Exterior

Figure 5-132 shows an RF jumper.



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Figure 5-132 RF jumper

(1) DIN straight male connector (2) DIN elbow male connector

NOTE

Macro base stations use super-flexible 1/2-inch jumpers.

5.8.2 Inter-RFU RF Signal CableThe inter-RFU RF signal cable is used for transmitting the received diversity signals betweentwo RFUs. The cable connects the RX IN port on one RFU and the RX OUT port on anotherRFU.

StructureFigure 5-133 shows the inter-RFU RF signal cable.

Figure 5-133 Inter-RFU RF signal cable

(1) QMA elbow male connector



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94194793 BTS3900L Ver C Hardware Description 07 PDF En

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