bbu3900 user guide(v200_05)

BBU3900

V200

User Guide

Issue 05

Date 2009-06-30

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

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

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

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Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

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

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mailto:[email protected]

Contents

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

1 Changes in the BBU3900 User Guide.....................................................................................1-1

2 DBS3900 Hardware Configuration.........................................................................................2-12.1 Typical Configurations of the DBS3900.........................................................................................................2-22.2 4-Way RX Diversity Configuration................................................................................................................2-42.3 TX Diversity Configuration............................................................................................................................2-62.4 2 x 2 MIMO Configuration.............................................................................................................................2-8

3 BBU3900 Hardware....................................................................................................................3-13.1 BBU3900 Equipment......................................................................................................................................3-2

3.1.1 Appearance of the BBU3900.................................................................................................................3-23.1.2 Boards and Module of the BBU3900.....................................................................................................3-2

3.2 BBU3900 Cables...........................................................................................................................................3-253.2.1 BBU3900 Cable List............................................................................................................................3-273.2.2 PGND Cable.........................................................................................................................................3-293.2.3 Power Cable.........................................................................................................................................3-293.2.4 Power cable(OMB)..............................................................................................................................3-303.2.5 E1 Cable...............................................................................................................................................3-313.2.6 E1 Surge Protection Transfer Cable.....................................................................................................3-333.2.7 FE Cable...............................................................................................................................................3-353.2.8 FE Surge Protection Transfer Cable.....................................................................................................3-353.2.9 Iub Optical Cable.................................................................................................................................3-363.2.10 CPRI Optical Cable............................................................................................................................3-373.2.11 Monitoring Signal Cable Between the APMI and the BBU..............................................................3-383.2.12 Monitoring Signal Cable for the APM30 Transmission Cabinet.......................................................3-393.2.13 Monitoring Signal Cable for the HEUA............................................................................................3-403.2.14 EMUA Signal Cable...........................................................................................................................3-413.2.15 BBU Alarm Cable..............................................................................................................................3-423.2.16 GPS Clock Signal Cable....................................................................................................................3-43

3.3 Auxiliary Devices of the BBU3900..............................................................................................................3-433.3.1 SLPU....................................................................................................................................................3-443.3.2 OMB.....................................................................................................................................................3-44

4 Maintaining BBU3900 Hardware............................................................................................4-1

BBU3900User Guide Contents

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4.1 Maintenance Items for the BBU3900 Equipment...........................................................................................4-24.2 Powering On/Off the BBU3900......................................................................................................................4-2

4.2.1 Powering on the BBU3900....................................................................................................................4-24.2.2 Powering Off the BBU3900...................................................................................................................4-3

4.3 Replacing Components of the BBU3900........................................................................................................4-44.3.1 Replacing a BBU3900 Case...................................................................................................................4-54.3.2 Replacing a WMPT................................................................................................................................4-64.3.3 Replacing a UPEU.................................................................................................................................4-74.3.4 Replacing the UEIU...............................................................................................................................4-84.3.5 Replacing a UBFA...............................................................................................................................4-104.3.6 Replacing a UTRP................................................................................................................................4-114.3.7 Replacing the USCU............................................................................................................................4-134.3.8 Replacing the UELP.............................................................................................................................4-144.3.9 Replacing the UFLP.............................................................................................................................4-154.3.10 Replacing a WBBP.............................................................................................................................4-164.3.11 Replacing an Optical Module.............................................................................................................4-17

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Figures

Figure 2-1 Cable connections of the DBS3900 in type 3 x 1 configuration........................................................2-3Figure 2-2 Cable connections of the DBS3900 in type 3 x 4 configuration........................................................2-4Figure 2-3 Cable connections of the DBS3900 in 4-way RX diversity configuration.........................................2-6Figure 2-4 Cable connections of the DBS3900 in TX diversity configuration....................................................2-8Figure 2-5 Cable connections of the DBS3900 in 2 x 2 MIMO configuration..................................................2-10Figure 3-1 BBU3900............................................................................................................................................3-2Figure 3-2 Slots of the BBU3900.........................................................................................................................3-3Figure 3-3 BBU3900 in full configuration...........................................................................................................3-5Figure 3-4 BBU3900 in typical configuration.....................................................................................................3-5Figure 3-5 Panel of the WMPT............................................................................................................................3-5Figure 3-6 LEDs besides the three ports on the WMPT......................................................................................3-7Figure 3-7 DIP switches on the WMPT...............................................................................................................3-8Figure 3-8 Panel of the UPEUA.........................................................................................................................3-10Figure 3-9 Panel of the UPEUB.........................................................................................................................3-10Figure 3-10 Panel of the UEIU...........................................................................................................................3-12Figure 3-11 Panel of the UBFA.........................................................................................................................3-13Figure 3-12 Panel of the UTRP2 supporting two optical ports..........................................................................3-14Figure 3-13 panel of the UTRP3 and UTRP4 supporting eight E1s/T1s...........................................................3-15Figure 3-14 Panel of the UTRP6 supporting one STM-1..................................................................................3-15Figure 3-15 Panel of the UTRP supporting four electrical ports........................................................................3-15Figure 3-16 DIP switch on the UTRP3 or UTRP4.............................................................................................3-18Figure 3-17 Panel of the USCU ........................................................................................................................3-20Figure 3-18 Panel of the UELP .........................................................................................................................3-21Figure 3-19 DIP switch on the UELP ...............................................................................................................3-22Figure 3-20 Panel of the UFLP..........................................................................................................................3-23Figure 3-21 Panel of the WBBPa.......................................................................................................................3-23Figure 3-22 Panel of the WBBPb.......................................................................................................................3-24Figure 3-23 PGND cable....................................................................................................................................3-29Figure 3-24 Power cable.....................................................................................................................................3-30Figure 3-25 Appearance of power cable(AC OMB)..........................................................................................3-31Figure 3-26 Appearance of power cable(DC OMB)..........................................................................................3-31Figure 3-27 E1 cable..........................................................................................................................................3-32Figure 3-28 E1 surge protection transfer cable..................................................................................................3-34

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Figure 3-29 FE cable..........................................................................................................................................3-35Figure 3-30 FE surge protection transfer cable..................................................................................................3-36Figure 3-31 Iub optical cable - 1 .......................................................................................................................3-37Figure 3-32 Iub optical cable - 2........................................................................................................................3-37Figure 3-33 Iub optical cable - 3........................................................................................................................3-37Figure 3-34 CPRI optical cable..........................................................................................................................3-37Figure 3-35 Monitoring signal cable between the APMI and the BBU.............................................................3-39Figure 3-36 Monitoring signal cable for the transmission cabinet.....................................................................3-39Figure 3-37 Monitoring signal cable for the HEUA..........................................................................................3-40Figure 3-38 EMUA signal cable........................................................................................................................3-41Figure 3-39 BBU alarm cable............................................................................................................................3-42Figure 3-40 GPS clock signal cable...................................................................................................................3-43Figure 3-41 Panel of the SLPU..........................................................................................................................3-44Figure 3-42 OMB cabinet...................................................................................................................................3-44Figure 4-1 Loosening the screws..........................................................................................................................4-8Figure 4-2 Loosening the screws..........................................................................................................................4-9Figure 4-3 Loosening the screws........................................................................................................................4-11Figure 4-4 Loosening the screws........................................................................................................................4-14Figure 4-5 Loosening the screws........................................................................................................................4-15

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Tables

Table 2-1 Typical configurations of the DBS3900 .............................................................................................2-2Table 2-2 Number of modules in the DBS3900 in 4-way RX diversity configuration........................................2-5Table 2-3 Number of modules in the DBS3900 in TX diversity configuration...................................................2-7Table 2-4 Number of modules in the DBS3900 in 2 x 2 MIMO configuration...................................................2-9Table 3-1 Board configuration of the BBU3900..................................................................................................3-3Table 3-2 LEDs on the WMPT.............................................................................................................................3-6Table 3-3 LEDs beside the three ports.................................................................................................................3-7Table 3-4 Ports on the WMPT..............................................................................................................................3-8Table 3-5 Settings of SW1....................................................................................................................................3-9Table 3-6 Settings of SW1....................................................................................................................................3-9Table 3-7 LED on the UPEU..............................................................................................................................3-11Table 3-8 Ports on the UPEU.............................................................................................................................3-11Table 3-9 Ports on the UEIU..............................................................................................................................3-12Table 3-10 LED on the UBFA...........................................................................................................................3-13Table 3-11 Specifications of the UTRP..............................................................................................................3-14Table 3-12 LEDs on the panel of the UTRP......................................................................................................3-16Table 3-13 LEDs on the Ethernet ports of the UTRP2 and UTRP9...................................................................3-17Table 3-14 Ports of the UTRP2 supporting two optical ports............................................................................3-17Table 3-15 Ports on the panel of the UTRP3 and UTRP4 supporting eight E1s/T1s........................................3-17Table 3-16 Port of the UTRP6 supporting one STM-1......................................................................................3-17Table 3-17 Ports of the UTRP9 supporting four electrical ports........................................................................3-18Table 3-18 DIP switch SW1 on the UTRP.........................................................................................................3-18Table 3-19 DIP switch SW2 on the UTRP.........................................................................................................3-19Table 3-20 DIP switch SW3 on the UTRP.........................................................................................................3-19Table 3-21 LEDs on the USCU..........................................................................................................................3-20Table 3-22 Ports on the USCU...........................................................................................................................3-21Table 3-23 Ports on the panel of the UELP........................................................................................................3-22Table 3-24 DIP switch on the UELP .................................................................................................................3-22Table 3-25 Ports on the panel of the UFLP........................................................................................................3-23Table 3-26 Specifications of the WBBP.............................................................................................................3-24Table 3-27 LEDs on the WBBP.........................................................................................................................3-24Table 3-28 Ports on the WBBP..........................................................................................................................3-25Table 3-29 BBU3900 Cable list.........................................................................................................................3-27

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Table 3-30 Pin assignment for wires of the -48 V power cable.........................................................................3-30Table 3-31 Pin assignment for wires of the +24 V power cable........................................................................3-30Table 3-32 Pin assignment for the wires of the 75-ohm E1 coaxial cable.........................................................3-32Table 3-33 Pin assignment for the wires of the 120-ohm E1 twisted pair cable................................................3-33Table 3-34 Pin assignment for the wires of the E1 surge protection transfer cable...........................................3-34Table 3-35 Pin assignments for the wires of the FE cable.................................................................................3-35Table 3-36 Pin assignment for the wires of the FE surge protection transfer cable...........................................3-36Table 3-37 Pin assignment for the fiber tails of the CPRI optical cable between the BBU and RRU...............3-38Table 3-38 Pin assignment for the fiber tails of the CPRI optical cable between RRUs...................................3-38Table 3-39 Pin assignment for the wires of the monitoring signal cable between the APMI and the BBU......3-39Table 3-40 Connections of the monitoring signal cable for the transmission cabinet........................................3-40Table 3-41 Pin assignment for the wires of the monitoring signal cable for the HEUA....................................3-41Table 3-42 Pin assignment for the wires of the EMUA signal cable.................................................................3-42Table 3-43 Pin assignment for the wires of the alarm cable...............................................................................3-42Table 3-44 Dimensions of the OMB cabinet......................................................................................................3-45Table 4-1 Maintenance items for the BBU3900 equipment ................................................................................4-2

TablesBBU3900

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About This Document

IntroductionThis document describes the BBU3900 hardware, such as boards, module, ports, cables, andconnectors, and the functions and installation of the hardware, providing a reference for planningand deploying BBU3900 sites. It also presents the installation modes and maintenanceinformation of the BBU3900.

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

Product Name Product Version

BBU3900 V200R010

V200R011

Intended AudienceThis document is intended for:

l NodeB installers

l Field engineers

l System engineers

Change HistoryFor the changes in this document, see 1 Changes in the BBU3900 User Guide.

Organization1 Changes in the BBU3900 User Guide

This describes the changes in the BBU3900 User Guide.

2 DBS3900 Hardware Configuration

This describes the Typical Configurations of the DBS3900, 4-Way RX Diversity Configuration,TX Diversity Configuration and 2 × 2 MIMO Configuration.

BBU3900User Guide About This Document


1

3 BBU3900 Hardware

This describes the BBU3900 equipment and related cables, providing a reference for hardwareinstallation and maintenance.

4 Maintaining BBU3900 Hardware

This describes how to maintain BBU hardware. After the BBU is put into use, routinemaintenance is performed to ensure the functionality of the BBU.

ConventionsSymbol Conventions

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

Symbol Description

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

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

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

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

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

General Conventions

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

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

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

Italic Book titles are in italics.

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

Command Conventions

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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.

About This DocumentBBU3900

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

Issue 05 (2009-06-30)

1 Changes in the BBU3900 User Guide

This describes the changes in the BBU3900 User Guide.

06 (2009-06-15)

This is the sixth commercial release.

Compared with issue 05 (2009-03-20), the following parts are modified:

3.1.2.7 USCU is added。

4.3.7 Replacing the USCU is added。

05 (2009-03-20)

This is the fourth commercial release.


2 DBS3900 Hardware Configuration is added.

Part Modification

3.1.2.6 UTRP The name of UTRP5 is modified to UTRP6.

04 (2009-02-25)

This is the third commercial release.


Part Modification

3.1.2.6 UTRP The name of UTRP is modified to UTRP2,UTRP3, UTRP4, UTRP5, UTRP9.

BBU3900User Guide 1 Changes in the BBU3900 User Guide


1-1

03 (2008-12-30)This is the second commercial release.


Part Modification

3.1.1 Appearance of the BBU3900 The appearance of BBU3900 is modified.

3.1.2.6 UTRP The UAEU is modified to UAEC, the UIEUis modified to UIEC.

Compared with issue 02 (2008-07-30), the following parts are added:

3.2.4 Power cable(OMB) is added.


3.2.9 Iub Optical Cable is added.


3.3.2 OMB is added.

02 (2008-07-30)This is the initial formal release.


The BBU3900 Installation Guideis replaced with the BBU3900 Quick Installation Guide.

01 (2008-03-30)This is the initial field trial release.

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2 DBS3900 Hardware Configuration

About This Chapter

This describes the Typical Configurations of the DBS3900, 4-Way RX Diversity Configuration,TX Diversity Configuration and 2 × 2 MIMO Configuration.

2.1 Typical Configurations of the DBS3900The capacity of the DBS3900 can be expanded through addition of modules or license upgrade.When license upgrade is required, the capacity can be expanded by 16 cells at a time. In theearly phase of network construction, you can choose a small-capacity configuration (such as 3x 1 configuration). When the number of subscribers increases, you can smoothly expand thesmall-capacity configuration to a large-capacity configuration (such as 3 x 2 or 3 x 4configuration).

2.2 4-Way RX Diversity ConfigurationThe DBS3900 supports 4-way RX diversity configuration.

2.3 TX Diversity ConfigurationThe DBS3900 supports TX diversity configuration.

2.4 2 x 2 MIMO ConfigurationThe DBS3900 supports 2 x 2 MIMO configuration.

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2.1 Typical Configurations of the DBS3900The capacity of the DBS3900 can be expanded through addition of modules or license upgrade.When license upgrade is required, the capacity can be expanded by 16 cells at a time. In theearly phase of network construction, you can choose a small-capacity configuration (such as 3x 1 configuration). When the number of subscribers increases, you can smoothly expand thesmall-capacity configuration to a large-capacity configuration (such as 3 x 2 or 3 x 4configuration).

The WBBP can support 3 cells and 6 cells. Table 2-1 show the typical configurations of theDBS3900.

Table 2-1 Typical configurations of the DBS3900

Configuration WBBPQuantity(Supporting3 Cells)

WBBPQuantity(Supporting6 Cells)

WMPTQuantity

RRU3804Quantity (No TXDiversity)

3 x 1 1 1 1 3

3 x 2 2 1 1 3

3 x 3 3 2 1 3

3 x 4 4 2 1 3

NOTE

N x M = sector x carrier. For example, 3 x 1 indicates that each of the three sectors has one carrier.

The description of the cable connections of the DBS3900 in type configuration is based on 3 x1 and 3 x 4 configurations. Where the WBBP supporting 6 cells is taken as an example.

Figure 2-1 shows the cable connections of the DBS3900 in type 3 x 1 configuration.

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Figure 2-1 Cable connections of the DBS3900 in type 3 x 1 configuration

Figure 2-2 shows the cable connections of the DBS3900 in type 3 x 4 configuration.



2-3

Figure 2-2 Cable connections of the DBS3900 in type 3 x 4 configuration

2.2 4-Way RX Diversity ConfigurationThe DBS3900 supports 4-way RX diversity configuration.

In 4-way RX diversity configuration, the DBS3900 consists of the WMPT, WBBP, andRRU3804s. The WMPT and WBBP are installed in the BBU3900. The WBBP supportsconfigurations of three cells and six cells. The following description is based on the WBBPsupporting six cells.

Number of Modules and Installation Positions

Table 2-2 lists the number of modules in the DBS3900 in 4-way RX diversity configuration.


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Table 2-2 Number of modules in the DBS3900 in 4-way RX diversity configuration

Configuration WMPTQuantity

WBBP(Supporting SixCells) Quantity

RRU3804 Quantity

3 x 1 1 1 6

3 x 2 1 2 6

NOTE

In 4-way RX diversity configuration, the number of cells supported by the WBBP supporting six cells is3, and the number of cells supported by the WBBP supporting three cells is also 3.

Cable ConnectionsThe description of the cable connections of the DBS3900 in 4-way RX diversity configurationis based on 3 x 1 configuration.

Figure 2-3 shows the cable connections of the DBS3900 in 4-way RX diversity configuration.



2-5

Figure 2-3 Cable connections of the DBS3900 in 4-way RX diversity configuration

2.3 TX Diversity ConfigurationThe DBS3900 supports TX diversity configuration.

In TX diversity configuration, the DBS3900 consists of the WMPT, WBBP, and RRU3804s.The WMPT and WBBP are installed in the BBU3900. The WBBP supports configurations ofthree cells and six cells. The following description is based on the WBBP supporting six cells.

Number of Modules and Installation PositionsTable 2-3 lists the number of modules in the DBS3900 in TX diversity configuration.


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Table 2-3 Number of modules in the DBS3900 in TX diversity configuration

Configuration WMPT Quantity WBBP(Supporting SixCells) Quantity

RRU3804Quantity

3 x 1 1 1 6

3 x 2 1 2 6

NOTE

In TX diversity configuration, the number of cells supported by the WBBP supporting six cells is 3, andthe number of cells supported by the WBBP supporting three cells is also 3.

Cable ConnectionsThe description of the cable connections of the DBS3900 in TX diversity configuration is basedon 3 x 1 configuration.

Figure 2-4 shows the cable connections of the DBS3900 in TX diversity configuration.



2-7

Figure 2-4 Cable connections of the DBS3900 in TX diversity configuration

2.4 2 x 2 MIMO ConfigurationThe DBS3900 supports 2 x 2 MIMO configuration.

In 2 x 2 MIMO configuration, the DBS3900 consists of the WMPT, WBBP, and RRU3804s.The WMPT and WBBP are installed in the BBU3900. The WBBP supports configurations ofthree cells and six cells. The following description is based on the WBBP supporting six cells.

Number of Modules and Installation PositionsTable 2-4 lists the number of modules in the DBS3900 in 2 x 2 MIMO configuration.


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Table 2-4 Number of modules in the DBS3900 in 2 x 2 MIMO configuration

Configuration WMPT Quantity WBBP(Supporting SixCells) Quantity

RRU3804Quantity

3 x 1 1 1 6

3 x 2 1 2 6

NOTE

In 2 x 2 MIMO diversity, the number of cells supported by the WBBP supporting six cells is 3, and thenumber of cells supported by the WBBP supporting three cells is also 3.

Cable ConnectionsThe description of the cable connections of the DBS3900 in 2 x 2 MIMO configuration is basedon 3 x 1 configuration.

Figure 2-5 shows the cable connections of the DBS3900 in 2 x 2 MIMO configuration.



2-9

Figure 2-5 Cable connections of the DBS3900 in 2 x 2 MIMO configuration


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3 BBU3900 Hardware

About This Chapter

This describes the BBU3900 equipment and related cables, providing a reference for hardwareinstallation and maintenance.

3.1 BBU3900 EquipmentThis describes the BBU3900 equipment. It is a baseband unit that implements communicationbetween the NodeB and the RNC.

3.2 BBU3900 CablesThis describes the BBU3900 cables. The cables are the PGND cable, power cable,E1 cable, E1surge protection transfer cable, FE cable, FE surge protection transfer cable, Iub optical cable,monitoring signal cable between the APMI and the BBU, CPRI optical cable, alarm cable,EMUA signal cable, and GPS clock signal cable.

3.3 Auxiliary Devices of the BBU3900This describes the auxiliary devices of the BBU3900. The devices consist of the SLPU and OMBCabinet.

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3.1 BBU3900 EquipmentThis describes the BBU3900 equipment. It is a baseband unit that implements communicationbetween the NodeB and the RNC.

The BBU3900 has the following functions:

l Providing ports for data communication between the NodeB and the RNC

l Providing the CPRI interface for communication between the BBU and the RRU or theRFU

l Providing USB ports, one of which facilitates NodeB upgraded when a USB disk is insertedduring software installation and data configuration

l Providing OM channels between the BBU and the LMT or the M2000 to operate andmaintain the BBU

l Processing uplink and downlink baseband signals

l Managing the entire NodeB system in terms of OM and signaling processing

l Providing the system clock

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

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

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

Due to its miniaturized design, the BBU3900 can be installed in any 19-inch-wide and 2 U-highindoor space or outdoor protective cabinet. Figure 3-1 shows the BBU3900.

Figure 3-1 BBU3900

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

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Board Configuration of the BBU3900This describes the board configuration of the BBU3900.

Slots of the BBU3900Figure 3-2 shows the slots of the BBU3900.

Figure 3-2 Slots of the BBU3900

Board Configuration of the BBU3900Table 3-1 describes the board configuration of the BBU3900.

Table 3-1 Board configuration of the BBU3900

Board Mandatory/Optional

MaximumConfiguredNumber

InstallationSlot

Requirements

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

WBBP Mandatory 4 Slots 0 to 3 The WBBP ispreferentiallyconfigured inSlot 3, then Slot2, at last Slot0,1.

UBFA Mandatory 1 FAN The UBFA canbe configuredonly in the FANslot.

UPEU Mandatory 2 PWR1 or PWR2 A single UPEUis preferentiallyconfigured inPWR2.



3-3

Board Mandatory/Optional

MaximumConfiguredNumber

InstallationSlot

Requirements

UEIU Optional 1 PWR1 or PWR2 The UEIU ispreferentiallyconfigured inPWR1.

UTRP Optional 5 Slots 0 to 5 The UTRP ispreferentiallyconfigured inSlot 4 and Slot 5

USCU Optional 1 Slots 0 or 1 The USCU ispreferentiallyconfigured inSlot 1.

UELP Optional 2 Slot 0 or 4 When thenumber of E1s isless than four,one UELP isrequired andinstalled in Slot4. When thenumber of E1s isgreater than fourand less thaneight, twoUELPs arerequired andinstalled in Slots0 and 4. Whenthe number ofE1s is greaterthan eight, theSLPU isrequired and theUELP isinstalled insidethe SLPU.

UFLP Optional 2 Slot 0 or 4 The UFLP ispreferentiallyinstalled in Slot4.

Figure 3-3 shows the BBU3900 in full configuration with two WMPTs, four WBBPs+twoUTRPs, one UPEU, and one UBFA.


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Figure 3-3 BBU3900 in full configuration

Figure 3-4 shows the BBU3900 in typical configuration with one WMPT, one WBBP, oneUPEU, and one UBFA.

Figure 3-4 BBU3900 in typical configuration

WMPTThis describes the WCDMA Main Processing and Transmission unit (WMPT). It is theBBU3900 main control and transmission board that processes the signals and manages theresources for other boards.

PanelFigure 3-5 shows the WMPT panel.

Figure 3-5 Panel of the WMPT

FunctionsThe WMPT has the following functions:



3-5

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

l Providing the reference clock

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

l Providing USB ports, one of which facilitates automatic BBU3900 upgraded when a USBdisk is inserted during software installation and data configuration

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

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

l Supporting cold backup

LEDTable 3-2 describes the LEDs on the WMPT panel.

Table 3-2 LEDs on the WMPT

Label Color Status Meaning

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

OFF The power supply isunavailable.

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

0.125s ON and0.125s OFF

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

ALM Red OFF No alarm isgenerated.

ON The board has alarmson hardware.

ACT Green ON The board is in activemode.

OFF The board is instandby mode.

In addition to the previous three LEDs, the WMPT has another six LEDs indicating theconnection status of the FE optical port, FE electrical port, and the commissioning Ethernet port.The six LEDs have no silk screen and are on both sides of each of the three ports. Figure 3-6describes the LEDs beside the three ports and the status of the LEDs.


User Guide


Issue 05 (2009-06-30)

Figure 3-6 LEDs besides the three ports on the WMPT

Table 3-3 describes the LED and its status.

Table 3-3 LEDs beside the three ports

LED Color Status Meaning

LEDs beside the FE1optical port

Green (LINK) ON The connections arefunctional.

OFF The connections arefaulty.

Green (ACK) Blinking Data transmission isongoing.

OFF No data transmissionis ongoing.

LEDs beside the FE0electrical port

Green (LINK) ON The connections arefunctional.


Yellow (ACK) Blinking Data transmission isongoing.


ETH Green (LINK) ON The connections arefunctional.


Yellow (ACK) Blinking Data transmission isongoing.


Port

Table 3-4 describes the ports on the WMPT panel.



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Table 3-4 Ports on the WMPT

Label Connector Type Description

E1/T1 DB26 connector E1

FE0 RJ45 connector FE electrical port

FE1 SFP connector FE optical port

GPS SMA connector GPS antenna

ETH RJ45 connector Commissioning Ethernetport

USB USB connector USB loading port

TEST USB connector USB testing port

RST - Resetting the BBU

DIP SwitchThe WMPT has two DIP switches: SW1 for setting the E1/T1 working mode and SW2 for settingthe protection grounding for the E1/T1 cables receiving 4-way signals. Figure 3-7 shows theDIP switches on the WMPT.

Figure 3-7 DIP switches on the WMPT

Table 3-5 and Table 3-6 describe the settings of SW1 and SW2.


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Issue 05 (2009-06-30)

Table 3-5 Settings of SW1

DIPSwitch

DIP Status Description

1 2 3 4

SW1 ON ON OFF OFF T1 Mode

OFF OFF ON ON The E1impedance isset to 120ohms.

ON ON ON ON The E1impedance isset to 75ohms.

Other settings of the DIP bits Disabled

Table 3-6 Settings of SW1

DIPSwitch


1 2 3 4

SW1 ON ON OFF OFF T1 Mode

OFF OFF ON ON The E1impedance isset to 120ohms.



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

UPEU

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



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PanelThe UPEU is classified into the Universal Power and Environment Interface Unit Type A(UPEUA) and the Universal Power and Environment Interface Unit Type B (UPEUB). TheUPEUA converts -48 V DC to +12 V DC and the UPEUB converts 24 V DC to 12 V DC. Figure3-8 shows the UPEUA panel and Figure 3-9 shows the UPEUB panel.

Figure 3-8 Panel of the UPEUA

Figure 3-9 Panel of the UPEUB

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

l Providing two ports with each transmitting one RS485 signal and another two ports witheach transmitting four dry contact signals

l Providing reverse connection protection for power cable connectors.

LEDThe UPEU has only one LED, indicating the running status of the board. Table 3-7 describesthe LED and its status.


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Issue 05 (2009-06-30)

Table 3-7 LED on the UPEU

Label Color Status Meaning

RUN Green ON The UPEU isoperational.

OFF Power input isunavailable or theboard is faulty.

PortTable 3-8 describes the ports on the UPEU.

Table 3-8 Ports on the UPEU

Label Connector Type Quantity Description

PWR 3V3 1 +24 V/-48 V DCpower input

EXT-ALM1 RJ45 1 Transmitting four drycontact alarms

EXT-ALM0 RJ45 1 Transmitting four drycontact alarms

MON1 RJ45 1 Transmitting oneRS485 environmentmonitoring signal

MON0 RJ45 1 Transmitting oneRS485 environmentmonitoring signal

UEIUThis describes the Universal Environment Interface Unit (UEIU) board of the BBU3900. TheUEIU transmits monitoring signals and alarm signals from external devices to the main controland transmission unit.

PanelFigure 3-10 shows the panel of the UEIU.



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Figure 3-10 Panel of the UEIU

Function

The UEIU has the following functions:

l Providing two ports with each transmitting one RS485 signal.

l Providing two ports with each transmitting four dry contact signals.

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

Port

Table 3-9 describes the ports on the UEIU panel.

Table 3-9 Ports on the UEIU

Label Connector Type Quantity Description

MON0 RJ45 1 One RS485 signal

MON1 RJ45 1 One RS485 signal

EXT-ALM0 RJ45 1 Four dry contactsignals

EXT-ALM1 RJ45 1 Four dry contactsignals

UBFA

This describes the Universal BBU Fan Unit Type A (UBFA) module of the BBU3900. TheUBFA controls the fan speed and detects the temperature of the fan board.

Panel

Figure 3-11 shows the panel of the UBFA.


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Issue 05 (2009-06-30)

Figure 3-11 Panel of the UBFA

Function

The UBFA has the following functions:l Controlling the fan speed.

l Reporting the fan status to the main control board.

l Detecting the temperature of the air inlets.

LED

The UBFA has only one LED, indicating the running status of the module. Table 3-10 describesthe LED and its status.

Table 3-10 LED on the UBFA

Label Color Status Description

STATE Green 0.125s ON, 0.125sOFF

The module is notregistered, and noalarm is reported.

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



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Red OFF No alarm is reported.

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

UTRP

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

Specification

Table 3-11 describes the specifications of the UTRP.

Table 3-11 Specifications of the UTRP

Board Port

UTRP2 Two universal FE/GE optical port

UTRP3 Ports for eight channels of ATM over E1/T1

UTRP4 Ports for eight channels of IP over E1/T1

UTRP6 Port for one unchannelized STM-1/OC-3

UTRP9 Four universal FE/GE electrical ports

NOTEThe UTRP2 and UTRP9 are supported in V200R011.

Panel

Figure 3-12 shows the panel of the UTRP2.

Figure 3-12 Panel of the UTRP2 supporting two optical ports

Figure 3-13 shows the panel of the UTRP3 and UTRP4.


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Figure 3-13 panel of the UTRP3 and UTRP4 supporting eight E1s/T1s


Figure 3-14 Panel of the UTRP6 supporting one STM-1


Figure 3-15 Panel of the UTRP supporting four electrical ports

FunctionsThe UTRP has the following functions:

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

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

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

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

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

l The cold backup is supported.

LEDsTable 3-12 describes the LEDs on the panel of the UTRP.



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Table 3-12 LEDs on the panel of the UTRP


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

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

ON for 1s and OFFfor 1s

The board is runningproperly.

ON for 0.125s andOFF for 0.125s

The board is notconfigured or isloading software.


The board is in theoffline state or undertest.

ALM Red ON or blinkingrapidly

The board isreporting alarms.

OFF The board is runningproperly.


The board isreporting a minoralarm.


The board isreporting a majoralarm.


The board isreporting a criticalalarm.

ACT Green ON The board is in activemode.

OFF The board is instandby mode.

UTRP2 and UTRP9 provide two LEDs for indicating the status of the current link. Table3-13 describes the LEDs on the Ethernet ports.


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Issue 05 (2009-06-30)

Table 3-13 LEDs on the Ethernet ports of the UTRP2 and UTRP9


LINK Green OFF The link isdisconnected.

ON The link is properlyconnected.

ACT Orange Blinking The link is receivingor transmitting data.

OFF The link is notreceiving ortransmitting data.

PortsTable 3-14 describes the ports of the UTRP2.

Table 3-14 Ports of the UTRP2 supporting two optical ports

Label Port Type Quantity Connector Type

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

Table 3-15 describes the ports on the UTRP3 and UTRP4.

Table 3-15 Ports on the panel of the UTRP3 and UTRP4 supporting eight E1s/T1s


E1/T1 E1/T1 port 2 DB26 connector

Table 3-16 describes the port of the UTRP6.

Table 3-16 Port of the UTRP6 supporting one STM-1


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

Table 3-17 describes the ports of the UTRP9.



3-17

Table 3-17 Ports of the UTRP9 supporting four electrical ports


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

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

The UTRP3 or UTRP4 has three DIP switches numbered from SW1 to SW3. SW1 and SW2 areused to set the grounding status of the eight E1s. SW3 is used to set matched impedance for theeight E1s. Figure 3-16 shows the DIP switch.

Figure 3-16 DIP switch on the UTRP3 or UTRP4

Table 3-18, Table 3-19, and Table 3-20 describe how to set the DIP switches on the UTRP.

Table 3-18 DIP switch SW1 on the UTRP

DIPSwitch


1 2 3 4

SW1 OFF OFF OFF OFF BalancedMode

ON ON ON ON UnbalancedMode



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DIPSwitch


1 2 3 4

SW1 OFF OFF OFF OFF BalancedMode

ON ON ON ON UnbalancedMode


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


DIPSwitch


1 2 3 4

SW1 OFF OFF ON ON T1 Mode

ON ON OFF OFF The E1impedance isset to 120ohms.



USCU

The Universal Satellite Card and Clock Unit (USCU) is compatible with six types of satellitecard, provides absolute timing information and the 1 Pulse Per Second (PPS) reference clockfor the main control board, and provides the RGPS ports and BITS port.

Panel

Figure 3-17 shows the panel of the USCU.



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Figure 3-17 Panel of the USCU

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

Functions

The USCU has the following functions:

l Providing absolute timing information and the 1 PPS reference clock for the main controlboard

l Compatible with six types of satellite card: Resolution T, M2M, GPS15L, K161, GG16,and JNS100

l Determining the type of satellite card in use by checking the 1 PPS timing signals

l Supporting the input of RGPS signals

l Providing the BITS port and supporting adaptive input of the 2.048 MHz and 10 MHzclocks

LEDs

Table 3-21 describes the LEDs on the USCU.

Table 3-21 LEDs on the USCU

Label Color State Description

RUN Green ON The board is faulty.

OFF The board has no power input,or it is faulty.


The board is operational.


The board is under test.


The software is being loaded tothe board.

ALM Red ON The board is reporting alarms.

OFF The board is operational.


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Issue 05 (2009-06-30)

Label Color State Description

ACT Green ON The board is in the active state.

OFF The board is in the standby state.

PortsTable 3-22 describes the ports on the USCU.

Table 3-22 Ports on the USCU

Port Description

GPS port Used for receiving GPS signals

RGPS ports Used for receiving RGPS signals

BITS port Connected to the BITS clock; supporting adaptive input of the 2.048MHz and 10 MHz clocks

TEST port Used for testing the clock

UELPThe Universal E1/T1 Lightning Protection (UELP) is a universal E1/T1 surge protection unit.The UELP is optionally installed in the SLPU or BBU. Each UELP provides surge protectionfor four E1s/T1s.

PanelFigure 3-18 shows the panel of the UELP.

Figure 3-18 Panel of the UELP

PortTable 3-23 describes the ports on the panel of the UELP.



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Table 3-23 Ports on the panel of the UELP

Label Connector Type

INSIDE DB25

OUTSIDE DB26

DIP Switch

The UELP has one DIP switch, which is used to select whether the receive terminal is grounded.The DIP switch has four bits. Figure 3-19 shows the DIP switch on the UELP.

Figure 3-19 DIP switch on the UELP

Table 3-24 describes the DIP switch on the UELP.

Table 3-24 DIP switch on the UELP

DIPSwitch


1 2 3 4

S1 ON ON ON ON 75-ohm E1 cable


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DIPSwitch


1 2 3 4

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

UFLPThe universal FE lightning protection (UFLP) board is optionally installed in the SLPU orBBU3900. Each UFLP supports 2-way FE surge protection.

PanelFigure 3-20 shows the panel of the UFLP.

Figure 3-20 Panel of the UFLP

PortTable 3-25 describes the ports on the panel of the UFLP.

Table 3-25 Ports on the panel of the UFLP

Port Location Label Quantity

INSIDE side FE0, FE1 2

OUTSIDE side FE0, FE1 2

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

PanelThe WBBP has two types of panels, as shown in Figure 3-21 and Figure 3-22.

Figure 3-21 Panel of the WBBPa



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Figure 3-22 Panel of the WBBPb

FunctionThe WBBP has the following functions:l Providing the CPRI interface for communication between the BBU and the RRU or RFU,

and supporting the CPRI interface in 1+1 backup model Processing uplink and downlink baseband signals

Table 3-26 describes the specifications of the WBBP.

Table 3-26 Specifications of the WBBP

Board Number of Cells UL CE Number DL CE Number

WBBPa 3 128 256

WBBPb1 3 64 64

WBBPb2 3 128 128

WBBPb3 6 256 256

WBBPb4 6 384 384

LEDTable 3-27 describes the LEDs on the WBBP and their status.

Table 3-27 LEDs on the WBBP


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

OFF The power supply or the boardis faulty.

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

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


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ACT Green ON The board is running properly.

OFF The WBBP is not in use.

ALM Red OFF The board is running properly.

ON The board has alarms onhardware.

CPRI0/CPRI1/CPRI2

Red/green

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

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

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

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

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

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

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

PortThe WBBP has three ports. Table 3-28 describes the ports on the WBBP.

Table 3-28 Ports on the WBBP

Label Connector Type Data Rate Description

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

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

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

3.2 BBU3900 CablesThis describes the BBU3900 cables. The cables are the PGND cable, power cable,E1 cable, E1surge protection transfer cable, FE cable, FE surge protection transfer cable, Iub optical cable,



3-25

monitoring signal cable between the APMI and the BBU, CPRI optical cable, alarm cable,EMUA signal cable, and GPS clock signal cable.

3.2.1 BBU3900 Cable ListThis describes the BBU3900 cables. The cables are the PGND cable, power cable, E1 cable, E1surge protection transfer cable, FE cable, FE surge protection transfer cable, Iub optical cable,CPRI optical cable, APMI-BBU monitoring signal cable, BBU alarm cable, EMUA monitoringsignal cable, and GPS clock signal cable.

3.2.2 PGND CableThis describes the PGND cable. The PGND cable ensures the grounding of the BBU3900.

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

3.2.4 Power cable(OMB)The BBU power cable in the OMB is used to supply -48 V DC power to the BBU and HEUA.The DC OMB and AC OMB require different power cables between the BBU and the HEUA.

3.2.5 E1 CableThis describes the E1 cable. It connects the BBU3900 to the controller and transmits basebandsignals.

3.2.6 E1 Surge Protection Transfer CableThis describes the E1 surge protection transfer cable. It connects the UELP to the main controlboard.

3.2.7 FE CableThis describes the FE cable. It connects the BBU3900 to the controller through routingequipment and transmits baseband signals.

3.2.8 FE Surge Protection Transfer CableThis describes the FE surge protection transfer cable. It is an optional cable that connects themain control board to the UFLP.

3.2.9 Iub Optical CableThe Iub optical cable transmits signals over the Iub interface between the BBU3900 and theRNC. This cable is optional.

3.2.10 CPRI Optical CableThe CPRI optical cable is used to transmit CPRI signals between the BBU3900 and RRU orbetween RRUs.

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

3.2.12 Monitoring Signal Cable for the APM30 Transmission CabinetThe monitoring signal cable for the transmission cabinet is used to connect the alarm ports ofthe APMI, DCDU, and door status sensor to the EXT_ALM1 port of the BBU.

3.2.13 Monitoring Signal Cable for the HEUAThe monitoring signal cable for the HEUA transmits the monitoring information collected bythe HEUA to the BBU.

3.2.14 EMUA Signal Cable


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Issue 05 (2009-06-30)

This describes the EMUA signal cable. It transmits Boolean alarm signals from the EMUA tothe BBU3900. This cable is delivered with the EMUA.

3.2.15 BBU Alarm CableThis describes the alarm cable. It transmits alarm signals from external devices to the BBU3900.

3.2.16 GPS Clock Signal CableThis describes the GPS clock signal cable. It is an optional cable that transmits GPS clock signalsfrom the GPS antenna system to the BBU3900. The GPS clock signals serve as the clockreference of the BBU3900.

3.2.1 BBU3900 Cable ListThis describes the BBU3900 cables. The cables are the PGND cable, power cable, E1 cable, E1surge protection transfer cable, FE cable, FE surge protection transfer cable, Iub optical cable,CPRI optical cable, APMI-BBU monitoring signal cable, BBU alarm cable, EMUA monitoringsignal cable, and GPS clock signal cable.

Table 3-29 lists the BBU3900 cables.

Table 3-29 BBU3900 Cable list

Cable Type Factory Settings Installation Positions

3.2.2 PGND Cable The terminals are made onsite depending on fieldrequirements.

One end is connected to thegrounding bolt of the BBU.The other end is connected tothe wiring terminal of thePGND bar.

3.2.3 Power Cable 3V3 connector at one end andbare wires at the other end.Appropriate terminals areadded to the bare end on sitebased on the connector of thepower distribution device.

The 3V3 connector is linkedto the PWR port on theUPEU.The other end is connected tothe external power device.

3.2.5 E1 Cable DB26 male connector at oneend, and the connector at theother end needs to be madedepending on fieldrequirements.

l If the UELP is configured,the DB26 male connectoris linked to the OUTSIDEport on the UELP.

l If no UELP is configured,the DB26 male connectoris linked to the E1/T1 porton the WMPT.

The other end is connected tothe corresponding auxiliaryequipment.



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3.2.6 E1 Surge ProtectionTransfer Cable

DB26 male connector at oneend and DB25 maleconnector at the other end

The DB25 male connector islinked to the INSIDE port onthe UELP.l If the UELP is configured,

the DB26 male connectoris linked to the E1/T1 porton the UTRP.

l If no UELP is configured,the DB26 male connectoris linked to the E1/T1 porton the WMPT.

3.2.7 FE Cable RJ45 connectors at the twoends

One end is connected to theFE0 port on the WMPT.The other end is connected tothe routing equipment.

3.2.8 FE Surge ProtectionTransfer Cable

RJ45 connectors at the twoends

One end is connected to theFE0 port on the WMPT.The other end is connected tothe FE0 port at the INSIDEside.

3.2.10 CPRI Optical Cable DLC connectors at both ends One end is connected to theCPRI port on the WBBP.The other end is connected tothe CPRI_W port on theRRU.

3.2.11 Monitoring SignalCable Between the APMIand the BBU

RJ45 connector at both ends,and the RJ45 connector atone end has to be removed onsite to make the wires bare.

The RJ45 connector is linkedto the MON1 port on theUPEU or the UEIU.The other end is connected tothe ports TX-, TX+, RX-, andRX+ on the APMI.

3.2.15 BBU Alarm Cable RJ45 connectors at the twoends

One end is connected to theEXT-ALM port on the UEIUor the UPEU.The other end is connected tothe corresponding externaldevice.

3.2.14 EMUA Signal Cable RJ45 connector at one endand DB9 male connector atthe other end

The RJ45 connector is linkedto the MON0 port on theUPEU or the UEIU.The DB9 male connector islinked to the RS-485 port onthe EMUA.


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3.2.16 GPS Clock SignalCable

SMA male connector at oneend and N-type connector atthe other end

The SMA male connector islinked to the GPS port on theWMPT.The N-type connector islinked to the GPS surgeprotector.

3.2.2 PGND CableThis describes the PGND cable. The PGND cable ensures the grounding of the BBU3900.

Appearance

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

Figure 3-23 shows the PGND cable.

Figure 3-23 PGND cable

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

AppearanceThe power cable has a 3V3 connector at one end and bare wires at the other end. Based on theconnector of the power distribution device, appropriate terminals are added to the bare end onsite. Figure 3-24 shows the power cable by taking OT terminals at the bare end as an example.



3-29

Figure 3-24 Power cable

(1) 3V3 connector (2) OT terminal

NOTE

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

Pin Assignment

The power cable is a 2-wire cable. Table 3-30 and Table 3-31 describe the pin assignment forthe wires of the power cable.

Table 3-30 Pin assignment for wires of the -48 V power cable

Pin on the 3V3Connector

Color Description

A1 Blue -48 V

A2 - -

A3 Black GND

Table 3-31 Pin assignment for wires of the +24 V power cable

Pin on the 3V3 Connector Color Description

A1 Red +24 V

A2 - -

A3 Black GND

3.2.4 Power cable(OMB)The BBU power cable in the OMB is used to supply -48 V DC power to the BBU and HEUA.The DC OMB and AC OMB require different power cables between the BBU and the HEUA.


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AppearanceFigure 3-25 shows the appearance of power cable(AC OMB).

Figure 3-25 Appearance of power cable(AC OMB)

(1) 3V3 power connector for the BBU (2) H4 connector (3) 3V3 power connector for the HEUA

Figure 3-26 shows the appearance of power cable(DC OMB).

Figure 3-26 Appearance of power cable(DC OMB)

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

3.2.5 E1 CableThis describes the E1 cable. It connects the BBU3900 to the controller and transmits basebandsignals.

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

One end of the E1 cable is a DB26 male connector. The connector at the other end of the cableshould be made on site according to site requirements. Figure 3-27 shows an E1 cable.



3-31

Figure 3-27 E1 cable

Pin Assignment

Table 3-32 and Table 3-33 describe the pin assignment for the wires of the E1 cable.

NOTE

In Table 3-32, "Tip" refers to a wire in the E1 coaxial cable, and "Ring" refers to an external conductor ofthe cable.

Table 3-32 Pin assignment for the wires of the 75-ohm E1 coaxial cable

Pins of the DB26Male Connector

Wire Type Coaxial Series No. Cable Label

X1.1 Tip 1 RX1+

X1.2 Ring RX1-

X1.3 Tip 3 RX2+

X1.4 Ring RX2-

X1.5 Tip 5 RX3+

X1.6 Ring RX3-

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-


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Table 3-33 Pin assignment for the wires of the 120-ohm E1 twisted pair cable

Pins of the DB26Male Connector

Wire Color Wire Type Cable Labels

X.1 Blue Twisted pair cable RX1+

X.2 White RX1-

X.3 Orange Twisted pair cable RX2+

X.4 White RX2-

X.5 Green Twisted pair cable RX3+

X.6 White RX3-

X.7 Brown Twisted pair cable RX4+

X.8 White RX4-

X.19 Gray Twisted pair cable TX1+

X.20 White TX1-

X.21 Blue Twisted pair cable TX2+

X.22 Red TX2-

X.23 Orange Twisted pair cable TX3+

X.24 Red TX3-

X.25 Green Twisted pair cable TX4+

X.26 Red TX4-

3.2.6 E1 Surge Protection Transfer CableThis describes the E1 surge protection transfer cable. It connects the UELP to the main controlboard.

AppearanceThe E1 surge protection transfer cable has a DB26 male connector at one end and a DB25 maleconnector at the other end, as shown in Figure 3-28.



3-33

Figure 3-28 E1 surge protection transfer cable

(1) DB25 male (2) DB26 male

Pin Assignment

Table 3-34 describes the pin assignment for the wires of the E1 surge protection transfer cable.

Table 3-34 Pin assignment for the wires of the E1 surge protection transfer cable

Pin on the DB26 MaleConnector

Wire Type Pin on the DB25 MaleConnector

X1.20 Twisted pair X2.2

X1.19 X2.3


X1.3 X2.5


X1.21 X2.7


X1.5 X2.9


X1.23 X2.11


X1.7 X2.13


X1.2 X2.15


X1.26 X2.25


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3.2.7 FE CableThis describes the FE cable. It connects the BBU3900 to the controller through routingequipment and transmits baseband signals.

AppearanceThe FE cable has an RJ45 connector at each end, as shown in Figure 3-29.

Figure 3-29 FE cable

(1) RJ45 connector

Pin AssignmentTable 3-35 describes the pin assignment for the wires of the FE cable.

Table 3-35 Pin assignments for the wires of the FE 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

X1.3 White andgreen

X2.3

X1.4 Blue Twisted pair X2.4

X1.5 White and blue X2.5

X1.8 Brown Twisted pair X2.8

X1.7 White andbrown

X2.7

3.2.8 FE Surge Protection Transfer CableThis describes the FE surge protection transfer cable. It is an optional cable that connects themain control board to the UFLP.



3-35

Appearance

The FE surge protection transfer cable has an RJ45 connector at each end, as shown in Figure3-30.

Figure 3-30 FE surge protection transfer cable

Pin Assignment

Table 3-36 describes the pin assignment for the wires of the FE surge protection transfer cable.

Table 3-36 Pin assignment for the wires of the FE surge protection transfer cable


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

X1.3 White andgreen

X2.3

X1.4 Blue Twisted pair X2.4

X1.5 White and blue X2.5

X1.8 Brown Twisted pair X2.8

X1.7 White andbrown

X2.7

3.2.9 Iub Optical CableThe Iub optical cable transmits signals over the Iub interface between the BBU3900 and theRNC. This cable is optional.

Appearance

One end of the Iub optical cable has an LC connector, and the other end has an FC, SC, or LCconnector, as shown in Figure 3-31, Figure 3-32and Figure 3-33.


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Figure 3-31 Iub optical cable - 1



3.2.10 CPRI Optical CableThe CPRI optical cable is used to transmit CPRI signals between the BBU3900 and RRU orbetween RRUs.

Appearance

The CPRI optical cable is a multi-mode 2-wire cable with a DLC connector at each end. Figure3-34 shows the CPRI optical cable.

Figure 3-34 CPRI optical cable

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

(3) Fiber tail



3-37

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

Pin AssignmentTable 3-37 and Table 3-38 describes the pin assignment for the fiber tails of the CPRI opticalcable between the BBU and RRU and the CPRI optical cable between RRUs respectively.

Table 3-37 Pin assignment for the fiber tails of the CPRI optical cable between the BBU andRRU

Label Color Connects to...

1A Orange CPRI_W RX port on the RRU

1B Gray CPRI_W TX port on the RRU

2A Orange TX port on the BBU

2B Gray RX port on the BBU

Table 3-38 Pin assignment for the fiber tails of the CPRI optical cable between RRUs

Label Color Connects to...

1A Orange CPRI_W RX port on theRRU 1

1B Gray CPRI_W TX port on theRRU 1

2A Orange CPRI_E TX port on the RRU0

2B Gray CPRI_E RX port on the RRU0

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

AppearanceThe monitoring signal cable between the APMI and the BBU has an RJ45 connector at one endand four bare wires at the other end. Figure 3-35 shows the monitoring signal cable betweenthe APMI and the BBU.


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Figure 3-35 Monitoring signal cable between the APMI and the BBU

Pin AssignmentTable 3-39 describes the pin assignment for the wires of the monitoring signal cable betweenthe APMI and the BBU.

Table 3-39 Pin assignment for the wires of the monitoring signal cable between the APMI andthe BBU

Pin on theRJ45Connector

Color X2 to X5 Ends Description Terminal on theAPMI

X1.1 White X2 Twisted pair TX+

X1.2 Orange X3 TX-

X1.4 Blue X4 Twisted pair RX+

X1.5 White X5 RX-

3.2.12 Monitoring Signal Cable for the APM30 TransmissionCabinet

The monitoring signal cable for the transmission cabinet is used to connect the alarm ports ofthe APMI, DCDU, and door status sensor to the EXT_ALM1 port of the BBU.

AppearanceOne end of the monitoring signal cable is an RJ45 connector and the other end consists of threepairs of wires in different colors, as shown in Figure 3-36.

Figure 3-36 Monitoring signal cable for the transmission cabinet



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Installation PositionsThe wires in different colors are connected to different wiring terminals. Table 3-40 lists themapping between the wires and the pins.

Table 3-40 Connections of the monitoring signal cable for the transmission cabinet

Pin of RJ45Connector

Pin of CordEnd Terminal

Color Wire Type WiringTerminal

X1.1 X2 White Twisted pair Alarm wiringterminal OUT+ ofthe APMI

X1.2 X3 Orange Alarm wiringterminal OUT- ofthe APMI

X1.3 X4 White Twisted pair Alarm wiringterminal of theDCDUX1.6 X5 Green

X1.5 X6 White Twisted pair Alarm wiringterminal of thedoor status sensorX1.4 X7 Blue

3.2.13 Monitoring Signal Cable for the HEUAThe monitoring signal cable for the HEUA transmits the monitoring information collected bythe HEUA to the BBU.

AppearanceFigure 3-37 shows the monitoring signal cable for the HEUA.

Figure 3-37 Monitoring signal cable for the HEUA

(1) RJ-45 connector

Pin AssignmentTable 3-41 describes the pin assignment for the wires of the monitoring signal cable for theHEUA.


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Table 3-41 Pin assignment for the wires of the monitoring signal cable for the HEUA

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

3.2.14 EMUA Signal CableThis describes the EMUA signal cable. It transmits Boolean alarm signals from the EMUA tothe BBU3900. This cable is delivered with the EMUA.

Appearance

Figure 3-38 shows the EMUA signal cable.

Figure 3-38 EMUA signal cable

(1) RJ45 connector (2) DB9 male connector

Pin Assignment

Table 3-42 describes the pin assignment for the wires of the EMUA signal cable.



3-41

Table 3-42 Pin assignment for the wires of the EMUA signal cable

Pin on theRJ45Connector

Pin on the DB9Male Connector

Color Description Terminal onthe APMI

X1.1 X2.3 White Twisted pair TX+

X1.2 X2.7 Orange TX-

X1.5 X2.6 White Twisted pair RX-

X1.4 X2.2 Blue RX+

3.2.15 BBU Alarm CableThis describes the alarm cable. It transmits alarm signals from external devices to the BBU3900.

AppearanceThe alarm cable of the BBU3900 has an RJ45 connector at each end, as shown in Figure3-39. One RJ45 connector at one end, however, may be removed and an appropriate terminalmay be added according to the field requirements.

Figure 3-39 BBU alarm cable

Pin AssignmentTable 3-43 describes the pin assignment for the wires of the alarm cable.

Table 3-43 Pin assignment for the wires of the alarm cable



Wire Color Wire Type

X1.1 X2.1 Orange and white Twisted pair

X1.2 X2.2 Orange

X1.3 X2.3 Green and white Twisted pair

X1.6 X2.6 Green

X1.5 X2.5 Blue and white Twisted pair

X1.4 X2.4 Blue


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Wire Color Wire Type

X1.7 X2.7 Brown and white Twisted pair

X1.8 X2.8 Brown

3.2.16 GPS Clock Signal CableThis describes the GPS clock signal cable. It is an optional cable that transmits GPS clock signalsfrom the GPS antenna system to the BBU3900. The GPS clock signals serve as the clockreference of the BBU3900.

Appearance

The GPS clock signal cable has an SMA male connector at one end and an N-type connector atthe other end, as shown in Figure 3-40.

Figure 3-40 GPS clock signal cable

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

3.3 Auxiliary Devices of the BBU3900This describes the auxiliary devices of the BBU3900. The devices consist of the SLPU and OMBCabinet.

3.3.1 SLPUThe signal lightning protection unit (SLPU), which can be optionally configured with the UFLPor UELP, provides the signal surge protection.

3.3.2 OMBThe Outdoor Mini Box(OMB) is an outdoor BBU subrack, which is used outdoors. The OMBcabinet is equipped with the BBU, EPS30-4815A power equipment, and transmissionequipment. The OMB cabinet is easy to install and maintain. The cable distribution for internalmodules is convenient. The OMB cabinet has good waterproof and dustproof performance, andthe grounding function. In addition, the OMB cabinet provides the protection against moisture,mould, and salt fog damage.



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3.3.1 SLPUThe signal lightning protection unit (SLPU), which can be optionally configured with the UFLPor UELP, provides the signal surge protection.

Figure 3-41 shows the SLPU panel, which can be installed with the UFLP or UELP.

Figure 3-41 Panel of the SLPU

3.3.2 OMBThe Outdoor Mini Box(OMB) is an outdoor BBU subrack, which is used outdoors. The OMBcabinet is equipped with the BBU, EPS30-4815A power equipment, and transmissionequipment. The OMB cabinet is easy to install and maintain. The cable distribution for internalmodules is convenient. The OMB cabinet has good waterproof and dustproof performance, andthe grounding function. In addition, the OMB cabinet provides the protection against moisture,mould, and salt fog damage.

AppearanceFigure 3-42 shows the OMB cabinet.

Figure 3-42 OMB cabinet


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Table 3-44 shows the dimensions of the OMB cabinet.

Table 3-44 Dimensions of the OMB cabinet

Length (mm) Width (mm) Height (mm)

390 240 600

FunctionsThe functions of the OMB cabinet are as follows:l Providing 3 U installation space for the distributed BTS.

l Supporting the AC input modes of 220 V single-phase, 110 V dual-live two-phase.

l Supporting -48 V DC power input.

l Providing secure and reliable surge protection and inductive lightning protection throughthe AC surge protection box (optional).

l Connecting the grounding bus of the cabinet, PGND cable of the surge protector, and PGNDcables of other devices to the grounding busbar of the cabinet.

l Dissipating heat by using the core of the heat exchanger and outer and inner air circulationfans and enabling excellent heat dissipation.

l Protecting itself against dust, adapting to different environments even though in adverseair conditions, and being capable of working with the diesel generator.

l Being capable of working with the distributed or separated base stations and meeting therequirements in different scenarios.



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4 Maintaining BBU3900 Hardware

About This Chapter

This describes how to maintain BBU hardware. After the BBU is put into use, routinemaintenance is performed to ensure the functionality of the BBU.

4.1 Maintenance Items for the BBU3900 EquipmentThis describes the maintenance items for the BBU3900 equipment. The maintenance items arerelated to the fans, equipment surface, cleanliness, LEDs, and ambient temperature in the cabinet.

4.2 Powering On/Off the BBU3900This describes how to power on and power off the BBU3900. During power-on, you need tocheck the status of the LEDs on the BBU3900. As for the power-off, the operation in a normalsituation and that in an emergency are different.

4.3 Replacing Components of the BBU3900This describes how to replace components of the BBU. The components are the BBU case,boards and module of the BBU, and optical modules.

BBU3900User Guide 4 Maintaining BBU3900 Hardware


4-1

4.1 Maintenance Items for the BBU3900 EquipmentThis describes the maintenance items for the BBU3900 equipment. The maintenance items arerelated to the fans, equipment surface, cleanliness, LEDs, and ambient temperature in the cabinet.

Table 4-1 describes the maintenance items for the BBU3900 equipment.

Table 4-1 Maintenance items for the BBU3900 equipment

Item CheckingFrequency

OperatingInstructions

Reference Standard

Fans Weekly,monthly, orquarterly

Check the fans. No alarm related to the fansis reported.

Equipmentsurface

Monthly orquarterly

Check whether thesurface of each device isdamaged and whetherthe label on each deviceis legible.

None.

Cleanliness Monthly orquarterly

Check whether eachdevice is clean.

The surface and inside ofeach device are clean.

LEDs Monthly orquarterly

Check whether the LEDson each device arefunctional.

No alarm related to theLEDs is reported.

Ambienttemperature inthe cabinet

Monthly orquarterly

Check whether thetemperature inside thecabinet is normal.

The requirement for theoperating temperature of theBBU3900 is -20℃ to+55℃.

4.2 Powering On/Off the BBU3900This describes how to power on and power off the BBU3900. During power-on, you need tocheck the status of the LEDs on the BBU3900. As for the power-off, the operation in a normalsituation and that in an emergency are different.

4.2.1 Powering on the BBU3900This describes how to check the power-on status of the BBU3900. After setting the power switchto ON, you need to check the running status of the BBU3900 through the status of LEDs.

4.2.2 Powering Off the BBU3900This describes how to power off the BBU3900 in a normal situation and in an emergency.

4.2.1 Powering on the BBU3900This describes how to check the power-on status of the BBU3900. After setting the power switchto ON, you need to check the running status of the BBU3900 through the status of LEDs.

4 Maintaining BBU3900 HardwareBBU3900

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PrerequisiteThe input voltage stays within a proper range.

l If the BBU3900 uses +24 V DC power, the input voltage should range from +21.6 V DCto +29 V DC.

l If the BBU3900 uses -48 V DC power, the input voltage should range from -38.4 V DC to-57 V DC.

Procedure

Step 1 Set the power switch of the BBU3900 to ON.

Step 2 Check the status of the RUN, ALM, and ACT LEDs on each board in the BBU3900. Then,perform the next step accordingly.

If... Then...

l The RUN LED is ON,

l The ALM LED is 1s ON and then OFF,

l The ACT LED is 1s ON and then OFF,

The board is operational. Go to Step 3.

l The RUN LED is ON,

l The ALM LED is ON,

l The ACT LED is ON,

The board is faulty. In this case, perform thefollowing operations:l Check the power cable to ensure that it is

correctly connected.l Reset the board.

l Remove the board and check whether thereare damaged pins. If yes, replace the board.If no, reinstall the board.

If the status of LEDs is still abnormal, contactHuawei for technical support.

Step 3 When the board becomes operational, the status of the LEDs changes. Perform the next stepbased on the status of the LEDs.

If... Then...

l The RUN LED 1s ON and 1s OFF,

l The ALM LED is OFF,

The BBU3900 is running properly. End thetask.

The LEDs are in other status, The BBU3900 is faulty. Clear the fault, andthen go to Step 1.

----End

4.2.2 Powering Off the BBU3900This describes how to power off the BBU3900 in a normal situation and in an emergency.



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Procedure

Step 1 Determine whether the BBU is powered off in a normal situation or in an emergency.

If... Then...

The BBU3900 needs to be powered off whenyou move the equipment or anticipate aterritorial blackout,

Power off the BBU in a normal situation byreferring to Step 2.

The BBU3900 needs to be powered off in anemergency, such as fire, smoke, or waterimmersion,

Power off the BBU in an emergency byreferring to Step 3.

Step 2 Set the power switch of the BBU3900 and then the power switch of the external power supplyto the BBU3900 to OFF.

Step 3 Set the power switch of the external power supply to the BBU3900 to OFF. Then, set the powerswitch of the BBU3900 to OFF if time permits.

----End

4.3 Replacing Components of the BBU3900This describes how to replace components of the BBU. The components are the BBU case,boards and module of the BBU, and optical modules.

4.3.1 Replacing a BBU3900 CaseThis describes how to replace a BBU3900 case. The BBU3900, which is a core module of theNodeB, processes baseband signals of the entire NodeB system and provides transport interfacesfor communication with other NEs, namely, RNC, RRU, WRFU. Replacing the BBU3900interrupts all the services carried by the NodeB.

4.3.2 Replacing a WMPTThe WMPT is the BBU3900 main control and transmission board, replacing the WMPT disruptsall the services carried by the NodeB.

4.3.3 Replacing a UPEUThe UPEU is the power module of the BBU and provides power for the boards in the BBU. TheUPEU supports the -48 V DC input. During the replacement of the UPEU, the BBU is poweredoff and the ongoing-services are disrupted.

4.3.4 Replacing the UEIUThe Universal Environment Interface Unit (UEIU) is used to transmit the monitoring signals ofthe service boards in the BBU. During the replacement of the UEIU, the external devices cannotbe monitored.

4.3.5 Replacing a UBFAThe UBFA is the fan module in the BBU. The UBFA and the air inlet box in the BBU form aventilation loop, implementing forced heat dissipation for the BBU. During the replacement ofthe UBFA, the heat generated by the BBU cannot be properly ventilated and, with temperatureincrease, an overtemperature alarm is reported. The services, however, are not affected.

4.3.6 Replacing a UTRP


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The UTRP is the BBU3900 main control and transmission board, replacing the UTRP disruptsall the services carried by the NodeB.

4.3.7 Replacing the USCUThe USCU is the extended satellite card clock unit of the BBU3900. It provides the BITS, GPS,and RGPS clock signals. The replacement of the USCU does not affect the services.

4.3.8 Replacing the UELPThe UELP is used for E1/T1 surge protection of the BBU. Each UELP provides surge protectionfor four E1/T1 signals. The UELP replacement interrupts the E1/T1 links. Thus, the ongoingBTS services are disrupted.

4.3.9 Replacing the UFLPThe UFLP is used for FE surge protection of the BBU. The UFLP replacement interrupts theE1/T1 links. Thus, the ongoing BTS services are disrupted.

4.3.10 Replacing a WBBPReplacing a WBBP disrupts all the services carried by the NodeB.

4.3.11 Replacing an Optical ModuleThis describes how to replace an optical module. The optical module provides the interface foroptical-electrical conversion, thus enabling transmission through optical cables between theBBU and other devices. You need to disconnect the optical cables when replacing the faultyoptical module. Therefore, services on the optical cables are disrupted during the replacement.

4.3.1 Replacing a BBU3900 CaseThis describes how to replace a BBU3900 case. The BBU3900, which is a core module of theNodeB, processes baseband signals of the entire NodeB system and provides transport interfacesfor communication with other NEs, namely, RNC, RRU, WRFU. Replacing the BBU3900interrupts all the services carried by the NodeB.

PrerequisiteThe tools and materials, such as the ESD wrist strap or gloves, cross screwdriver, ESD box orbag, and key to the cabinet door are ready.

Procedure

Step 1 Run ULD CFGFILE on the LMT to upload the NodeB data configuration file to the LMTmaintenance computer.

Step 2 Power off the BBU3900 by referring to Powering Off the BBU3900, and turn off the powerswitch of the external power supply to the BBU3900.

Step 3 Label the BBU3900 cables, disconnect them, and then take insulation measures for the cables.

NOTE

Disconnect the BBU3900 cables in the sequence of the power cable, alarm cable, FE cable, E1 cable, CPRIoptical cable, and PGND cable.

Step 4 Use the cross screwdriver to remove the four panel screws.

Step 5 Pull the faulty BBU3900 case out of the cabinet.

Step 6 Insert a new BBU3900 case into the slot. Then, push the new BBU3900 case until it is in position.



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Step 7 Tighten the panel screws to secure the new BBU3900 case.

Step 8 Connect the cables to the BBU in turn according to the labels.

Step 9 Turn on the power switch of the external power supply to the BBU3900. Then, power on theBBU3900 by referring to Powering on the BBU3900.

Step 10 On the LMT, run the DLD CFGFILE command to download the NodeB data configuration fileto the new BBU3900.

Step 11 Run LST VER to query the software version and the BootROM version. If it is not correct,update the version.

Step 12 Run RST NODEB to restart the NodeB.

----End

Postrequisite

After replacing the faulty BBU3900 case, check the following items:

l On the M2000 or LMT, the related alarms are cleared.

l A UE can access the cell carried by the BBU3900.

Contact the local Huawei office to handle the faulty BBU3900 case.

4.3.2 Replacing a WMPTThe WMPT is the BBU3900 main control and transmission board, replacing the WMPT disruptsall the services carried by the NodeB.

Prerequisite

The tools and materials, such as an ESD wrist strap or a pair of ESD gloves, Phillips screwdriver,ESD box or bag, dustfree cloth, and key to the cabinet door are ready.

Context

l The BBU3900 is configured with one active WMPT. Replacing the WMPT disrupts all theservices carried by the NodeB. Therefore, power off the NodeB before replacement.

l The BBU3900 is configured with one active WMPT and one standby WMPT. When theactive WMPT is being replaced, an active/standby fail is performed automatically. Afterthe fail is successful, the standby WMPT becomes the active WMPT and takes over theservices, and the new WMPT becomes the standby WMPT. Powering off the NodeB is notrequired during replacement. Replacing the standby WMPT does not disrupt the services.When replacing the board, do not power off the NodeB. You only need to remove the faultyboard, and then insert a new board into the original slot.

CAUTIONThe active/standby fail may result in NodeB resetting or service disruption.


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Procedure

Step 1 Remove the faulty WMPT.

1. Attach temporary labels to the cables on the faulty WMPT, and then disconnect the cables.

2. Loosen the screws on the panel of the faulty WMPT.

3. Turn the ejector lever outwards, and then pull the faulty WMPT out of the slot.

4. Place the faulty WMPT in an ESD bag.

Step 2 Install a new WMPT.

1. Insert a new WMPT into the slot, and then slide the board until it is in position.

2. Turn the ejector levers inwards, and then tighten the screws on the panel of the new WMPT.

3. Connect the cables to the ports on the panel of the new WMPT according to the recordedcable connections.

Step 3 Check the running status of the new WMPT.

1. When the board is operational, the RUN LED blinks at 0.5 Hz, and the AL LED is OFF.

2. If the board works in active mode, the ACT LED is ON. If the board does not work orworks in standby mode, the ACT LED is OFF.

NOTEFor details on the LED of the WMPT, see the 3.1.2.2 WMPT.

----End

PostrequisiteContact the local Huawei office to handle the faulty board or module.

4.3.3 Replacing a UPEUThe UPEU is the power module of the BBU and provides power for the boards in the BBU. TheUPEU supports the -48 V DC input. During the replacement of the UPEU, the BBU is poweredoff and the ongoing-services are disrupted.

Prerequisitel The number and types of faulty UPEUs are obtained, and new UPEUs are available.

l The installation positions of the faulty UPEUs and the interconnection relations of thecables on the UPEU panels are recorded.

l The required tools and materials such as an ESD wrist strap/ESD gloves and an ESD box/ESD bag are kept ready.

Context

This board is hot swappable.

It takes about 10 minutes to replace the board. The duration of the replacement involves theremoval of the cables and the faulty UPEU, the installation of the new UPEU and the cables,and the time elapsed for the operation of the UPEU.



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CAUTIONTake correct ESD prevention measures, such as wearing an ESD wrist strap or ESD gloves, toavoid static damage to boards, modules, and electronic components.

Procedure

Step 1 Power off the BBU by referring to Powering Off the BBU.

Step 2 Remove the cables from the panel of the faulty UPEU.

Step 3 Loosen the screws on the panel of the UPEU, as shown in Figure 4-1.

Figure 4-1 Loosening the screws

Step 4 Remove the faulty UPEU from the slot.

Step 5 Put the faulty UPEU into the ESD bag.

Step 6 Slide the new UPEU into the slot of the faulty UPEU.

Step 7 Fasten the screws on the panel of the new UPEU.

Step 8 Install the cables on the panel of the new board according to the recorded installation positions.

Step 9 Power on the BBU by referring to Powering On the BBU.

Step 10 Check the running status of the new UPEU.

NOTEFor details on the LED of the UPEU, see the 3.1.2.3 UPEU.

----End

Postrequisite

Contact the local Huawei office to handle the faulty UPEU.

4.3.4 Replacing the UEIUThe Universal Environment Interface Unit (UEIU) is used to transmit the monitoring signals ofthe service boards in the BBU. During the replacement of the UEIU, the external devices cannotbe monitored.


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Prerequisitel The number and types of faulty UEIUs are determined, and new UEIUs are available.

l The installation positions of the faulty UEIUs and the interconnection relations of the cableson the UEIU panels are recorded.

l The required tools and materials such as ESD wrist strap/ESD gloves and ESD box/ESDbag are kept ready.

ContextThis board is hot swappable.

It takes about 5 minutes to replace the board. The duration of the replacement involves theremoval of the cables and the faulty UEIU, the installation of the new UEIU and the cables, andthe time elapsed for the operation of the UEIU.


Procedure

Step 1 Remove the cables from the panel of the faulty UEIU.

Step 2 Loosen the screws on the panel of the UEIU, as shown in Figure 4-2.


EXT-ALMOEXT-ALM1 MONOMON1UEIU

Step 3 Remove the faulty UEIU from the slot.

Step 4 Put the faulty UEIU into an ESD bag.

Step 5 Slide the new UEIU into the slot of the faulty UEIU.

Step 6 Fasten the screws on the panel of the new board.

Step 7 Install the cables on the panel of the new board according to the recorded installation positions.

----End



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PostrequisiteContact the local Huawei office to handle the faulty UEIU.

4.3.5 Replacing a UBFAThe UBFA is the fan module in the BBU. The UBFA and the air inlet box in the BBU form aventilation loop, implementing forced heat dissipation for the BBU. During the replacement ofthe UBFA, the heat generated by the BBU cannot be properly ventilated and, with temperatureincrease, an overtemperature alarm is reported. The services, however, are not affected.

Prerequisitel The quantity of faulty UBFAs is checked, and new modules are ready.

l The installation positions of the faulty UBFAs are recorded.


It takes about three minutes to replace a UBFA, which involves removing the faulty UBFA,installing the new UBFA, and waiting for the new UBFA to start working properly.


CAUTIONIf one or more fans are still rotating in the faulty FAN unit, do not touch the rotating fans withhands to avoid being hurt after the FAN unit are removed.

Procedure

Step 1 Loosen the screws on the panel of the UBFA, as shown in Figure 4-3.


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Step 2 Remove the faulty UBFA from the slot.

CAUTIONIf one or more fans are still rotating in the faulty FAN unit, do not touch the rotating fans withhands to avoid being hurt after the FAN unit are removed.

Step 3 Slide the new UBFA into the slot.

Step 4 Tighten the screws on the panel of the new UBFA.

Step 5 Check the running status of the new UBFA.

NOTEFor details on the LED of the UBFA, see the 3.1.2.5 UBFA.

----End

Postrequisite

Contact the local Huawei office to handle the faulty UBFA.

4.3.6 Replacing a UTRPThe UTRP is the BBU3900 main control and transmission board, replacing the UTRP disruptsall the services carried by the NodeB.



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Prerequisite

The tools and materials, such as an ESD wrist strap or a pair of ESD gloves, Phillips screwdriver,ESD box or bag, dustfree cloth, and key to the cabinet door are ready.

Context

l The BBU3900 is configured with one active UTRP. Replacing the UTRP disrupts all theservices carried by the NodeB. Therefore, power off the NodeB before replacement.

l The BBU3900 is configured with one active UTRP and one standby UTRP. When the activeUTRP is being replaced, an active/standby fail is performed automatically. After the failis successful, the standby UTRP becomes the active UTRP and takes over the services, andthe new UTRP becomes the standby UTRP. Powering off the NodeB is not required duringreplacement. Replacing the standby UTRP does not disrupt the services. When replacingthe board, do not power off the NodeB. You only need to remove the faulty board, and theninsert a new board into the original slot.

CAUTIONThe active/standby fail may result in NodeB resetting or service disruption.

Procedure

Step 1 Remove the faulty UTRP.1. Attach temporary labels to the cables on the faulty UTRP, and then disconnect the cables.2. Loosen the screws on the panel of the faulty UTRP.3. Turn the ejector lever outwards, and then pull the faulty UTRP out of the slot.4. Place the faulty UTRP in an ESD bag.

Step 2 Install a new UTRP.1. Insert a new UTRP into the slot, and then slide the board until it is in position.2. Turn the ejector levers inwards, and then tighten the screws on the panel of the new UTRP.3. Connect the cables to the ports on the panel of the new UTRP according to the recorded

cable connections.

Step 3 Check the running status of the new UTRP.1. When the board is operational, the RUN LED blinks at 0.5 Hz, and the AL LED is OFF.2. If the board works in active mode, the ACT LED is ON. If the board does not work or

works in standby mode, the ACT LED is OFF.

NOTEFor details on the LED of the UTRP, see the 3.1.2.6 UTRP.

----End

PostrequisiteContact the local Huawei office to handle the faulty board or module.


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4.3.7 Replacing the USCUThe USCU is the extended satellite card clock unit of the BBU3900. It provides the BITS, GPS,and RGPS clock signals. The replacement of the USCU does not affect the services.

Prerequisitel The number and types of faulty USCUs are determined, and new USCUs are available.

l The installation positions of the faulty USCUs and the interconnection relations for thecables on the USCU panels are recorded.

l The required tools and materials such as ESD wrist strap/ESD gloves and ESD box/ESDbag are available.

Context

This topic describes how to install the hot-pluggable boards.


Procedure

Step 1 Mark the position of the faulty board.

Before replacing the SPSU, attach a replacement label on the panel of the board to be replacedto avoid maloperations.

Step 2 Remove the faulty board.1. Wear an ESD wrist strap and ESD gloves and insert the grounding plug into the antistatic

jack on the cabinet.2. Label the cables on the panel and then remove them.3. Remove the faulty board.4. Put the removed board into an antistatic packing box/bag.

Step 3 Install the new board.1. Take out the new board. Ensure that it is intact and its hardware version is the same as the

removed one.2. Install the new board.3. According to the labels, connect the removed cables to the ports on the panel of the new

board.

Step 4 Check the running status of the new USCU.

NOTEFor details on the LED of the USCU, see the 3.1.2.7 USCU.

----End



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Postrequisitel Record the software version, board name, slot number, and site name of the faulty board.

l Check whether there is visible physical damage on the board, for example, mechanical partsor plug-ins are distorted, pins are bent or missing, or the board is burnt.

l Record the information about the fault location process, including the cause of the fault,fault symptoms, alarm name, status of indicators on the board panel, and detailedprocedures for identifying and clearing the fault on site.

l Place the faulty board in an antistatic bag. Then, place the onsite fault record and theantistatic bag in the board box, and store them properly.

l Contact the local Huawei office to handle the faulty board.

4.3.8 Replacing the UELPThe UELP is used for E1/T1 surge protection of the BBU. Each UELP provides surge protectionfor four E1/T1 signals. The UELP replacement interrupts the E1/T1 links. Thus, the ongoingBTS services are disrupted.

Prerequisitel The number and types of faulty UELPs are determined, and new UELPs are kept ready.

l The installation positions of the UELP and the interconnection relations of the cables onthe UELP panel are recorded.

l The required tools and materials such as ESD wrist strap/ESD gloves and ESD box/ESDbag are kept ready.


It takes about two minutes to replace the board. The duration of the replacement involves theremoval of the cables and the faulty board, the installation of the new board and the cables, andthe time required for the operation of the board.


Procedure

Step 1 Remove the cables from the panel of the faulty UELP.

Step 2 Loosen the screws on the panel of the UELP, as shown in Figure 4-4.



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Step 3 Remove the faulty UELP from the slot.

Step 4 Slide the new UELP into the slot of the faulty UELP.

Step 5 Fasten the screws on the panel of the new UELP.

Step 6 Install the cables on the panel of the new UELP according to the recorded installation positions.

Step 7 Perform the dialing test to verify that the services are resumed.

----End

PostrequisiteContact the local Huawei office to handle the faulty UELP.

4.3.9 Replacing the UFLPThe UFLP is used for FE surge protection of the BBU. The UFLP replacement interrupts theE1/T1 links. Thus, the ongoing BTS services are disrupted.

Prerequisitel The number and types of faulty UFLPs are determined, and new UFLPs are kept ready.l The installation positions of the UFLP and the interconnection relations of the cables on

the UFLP panel are recorded.l The required tools and materials such as ESD wrist strap/ESD gloves and ESD box/ESD

bag are kept ready.


It takes about two minutes to replace the board. The duration of the replacement involves theremoval of the cables and the faulty board, the installation of the new board and the cables, andthe time required for the operation of the board.


ProcedureStep 1 Remove the cables from the panel of the faulty UFLP.

Step 2 Loosen the screws on the panel of the UFLP, as shown in Figure 4-5.




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Step 3 Remove the faulty UFLP from the slot.

Step 4 Slide the new UFLP into the slot of the faulty UFLP.

Step 5 Fasten the screws on the panel of the new UFLP.

Step 6 Install the cables on the panel of the new UFLP according to the recorded installation positions.

Step 7 Perform the dialing test to verify that the services are resumed.

----End

PostrequisiteContact the local Huawei office to handle the faulty UFLP.

4.3.10 Replacing a WBBPReplacing a WBBP disrupts all the services carried by the NodeB.

PrerequisiteThe tools and materials, such as an ESD wrist strap or a pair of ESD gloves, Phillips screwdriver,ESD box or bag, dustfree cloth, and key to the cabinet door are ready.

Procedure

Step 1 On the LMT, run the BLK BRD command to block the faulty WBBP.

Step 2 Remove the faulty WBBP.1. Attach temporary labels to the cables on the faulty WBBP, and then disconnect the cables.2. Loosen the screws on the panel of the faulty WBBP.3. Turn the ejector lever outwards, and then pull the faulty WBBP out of the slot.4. Place the faulty WBBP in an ESD bag.

Step 3 Install a new WBBP.1. Insert a new WBBP into the slot, and then slide the board until it is in position.2. Turn the ejector levers inwards, and then tighten the screws on the panel of the new WBBP.3. Connect the cables to the ports on the panel of the new WBBP according to the recorded

cable connections.

Step 4 Check the running status of the new WBBP.

NOTEFor details on the LEDs of the WBBP, see the 3.1.2.10 WBBP.

Step 5 Check whether related alarms are reported.1. On the LMT or M2000 client, run the LST ALMAF command to query active alarms.2. If active alarms are reported, clear them according to handling suggestions. If no active

alarm is reported, go to Step 6.

Step 6 Activate the BootROM or software version of the new WBBP.


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1. Run the DSP BRDVER command to check whether the BootROM or software version ofthe new WBBP is correct.

2. If the BootROM or software version is incorrect, run the ACT SOFTWARE command toactivate the BootROM or software version of the board.

Step 7 On the LMT, run the UBL BRD command to unblock the new WBBP.

----End

Postrequisite

Contact the local Huawei office to handle the faulty WBBP.

4.3.11 Replacing an Optical ModuleThis describes how to replace an optical module. The optical module provides the interface foroptical-electrical conversion, thus enabling transmission through optical cables between theBBU and other devices. You need to disconnect the optical cables when replacing the faultyoptical module. Therefore, services on the optical cables are disrupted during the replacement.

Prerequisitel The quantity and models of the faulty optical modules are checked, and new optical modules

are ready.l The connections of the faulty optical module and the associated optical cable are recorded.

l The ESD wrist strap or gloves and ESD box or bag are ready.

Context

Optical modules are installed in ports CPRI0 through CPRI2 on the WBBP.

Optical modules are hot swappable.

It takes about five minutes to replace an optical module. The time covers the activities ofdisconnecting the optical cable, removing the faulty optical module, inserting a new opticalmodule, and connecting the optical cable to the new optical module, and recovery of the CPRIlinks.

CAUTIONl Take proper ESD protection measures, for example, wear an ESD wrist strap or a pair of

ESD gloves, to prevent electrostatic hazard to the board, module, or electrical parts.l Do not look directly at the optical module after removing the connector of the optical cable

from the optical module.

Procedure

Step 1 Press the latch on the connector of the optical cable. Then, pull the connector out of the faultyoptical module.



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Step 2 Turn the ring on the faulty optical module outwards. Then, hold the ring and take the faultyoptical module out of the port. Remove the optical module from the BBU.

Step 3 Install a new optical module in the BBU.

Step 4 Remove the dustproof caps from the optical module and from the connector on the optical cable.Connect the optical cable to the optical module.

Step 5 Check whether the CPRI links are recovered by viewing the CPRI LED on the WBBP icon.

If... Then...

The CPRI LED is green, The CPRI links are recovered and the opticalmodule is replaced successfully.

The CPRI LED is of another color, The CPRI links are not recovered. Checkwhether the optical module and the opticalcable are correctly connected to the WBBP.

----End

PostrequisiteContact the local Huawei office to handle the faulty optical module.


User Guide


Issue 05 (2009-06-30)

bbu3900 user guide(v200_05)

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