Huawei BBU3900 User manual

BBU3900 GSM
V300R008
User Guide
Issue 04
Date 2008-09-05
Part Number
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any
assistance, please contact our local office or company headquarters.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent 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.
Notice
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but the statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
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Copyright © Huawei Technologies Co., Ltd

Contents
About This Document.....................................................................................................................1
1 Safety Information.....................................................................................................................1-1
1.1 Safety Precautions...........................................................................................................................................1-1
1.2 Electricity Safety.............................................................................................................................................1-3
1.3 Inflammable Environment...............................................................................................................................1-5
1.4 Battery.............................................................................................................................................................1-5
1.5 Radiation.........................................................................................................................................................1-7
1.6 Working at Heights.........................................................................................................................................1-9
1.7 Mechanical Safety.........................................................................................................................................1-11
1.8 Others............................................................................................................................................................1-12
2 BBU3900 Hardware....................................................................................................................2-1
2.1 BBU3900 Equipment......................................................................................................................................2-2
2.1.1 Appearance of the BBU3900.................................................................................................................2-2
2.1.2 Boards and Module of the BBU3900.....................................................................................................2-2
2.2 BBU3900 Cables...........................................................................................................................................2-14
2.2.1 BBU3900 Cable List............................................................................................................................2-15
2.2.2 PGND Cable.........................................................................................................................................2-16
2.2.3 Power Cable.........................................................................................................................................2-16
2.2.4 E1 Cable...............................................................................................................................................2-17
2.2.5 E1 Surge Protection Transfer Cable.....................................................................................................2-19
2.2.6 Monitoring Signal Cable Between the APMI and the BBU................................................................2-21
2.2.7 CPRI Optical Cable..............................................................................................................................2-21
2.2.8 Alarm Cable.........................................................................................................................................2-22
2.3 BBU3900 Auxiliary Equipment....................................................................................................................2-23
2.3.1 APM30.................................................................................................................................................2-23
2.3.2 DCDU-03B...........................................................................................................................................2-24
3 Maintaining BBU3900 Hardware............................................................................................3-1
3.1 Maintenance Items of the BBU.......................................................................................................................3-2
3.2 Powering On and Powering Off the BBU.......................................................................................................3-2
3.2.1 Powering On the BBU............................................................................................................................3-2
3.2.2 Powering Off the BBU...........................................................................................................................3-3
3.3 Replacing the BBU Parts.................................................................................................................................3-4
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3.3.1 Replacing the UBFU..............................................................................................................................3-5
3.3.2 Replacing a UPEU.................................................................................................................................3-7
3.3.3 Replacing the UEIU.............................................................................................................................3-10
3.3.4 Replacing the GTMU...........................................................................................................................3-11
3.3.5 Replacing the UELP.............................................................................................................................3-15
3.3.6 Replacing the Optical Module..............................................................................................................3-16
Contents
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Figures
Figure 1-1 Wearing an ESD wrist strap...............................................................................................................1-5
Figure 1-2 Lifting a weight................................................................................................................................1-10
Figure 1-3 Slant angle........................................................................................................................................1-11
Figure 1-4 One meter higher than the eave........................................................................................................1-11
Figure 2-1 BBU3900............................................................................................................................................2-2
Figure 2-2 Typical configuration of the BBU3900..............................................................................................2-4
Figure 2-3 Panel of the UEIU...............................................................................................................................2-5
Figure 2-4 Panel of the GTMU............................................................................................................................2-6
Figure 2-5 Panel of the UELP ...........................................................................................................................2-10
Figure 2-6 DIP switch on the UELP .................................................................................................................2-11
Figure 2-7 Panel of the UBFA...........................................................................................................................2-12
Figure 2-8 Panel of the UPEA............................................................................................................................2-13
Figure 2-9 Panel of the UPEB............................................................................................................................2-13
Figure 2-10 PGND cable....................................................................................................................................2-16
Figure 2-11 Power cable.....................................................................................................................................2-17
Figure 2-12 E1 cable..........................................................................................................................................2-18
Figure 2-13 E1 surge protection transfer cable..................................................................................................2-20
Figure 2-14 Monitoring signal cable between the APMI and the BBU.............................................................2-21
Figure 2-15 CPRI optical cable..........................................................................................................................2-22
Figure 2-16 Alarm cable.....................................................................................................................................2-22
Figure 2-17 DCDU-03B.....................................................................................................................................2-24
Figure 2-18 Ports on the DCDU-03B panel.......................................................................................................2-25
Figure 3-1 Loosening the screws..........................................................................................................................3-5
Figure 3-2 Checking whether the UBFU runs normally......................................................................................3-6
Figure 3-3 Querying UBFU alarms......................................................................................................................3-7
Figure 3-4 Loosening the screws..........................................................................................................................3-8
Figure 3-5 Checking whether the UPEU runs properly.......................................................................................3-9
Figure 3-6 Querying the alarm information of the UPEU..................................................................................3-10
Figure 3-7 Loosening the screws........................................................................................................................3-11
Figure 3-8 Loosening the screws........................................................................................................................3-12
Figure 3-9 Checking whether the GTMU runs properly....................................................................................3-13
Figure 3-10 Querying the software version of the GTMU.................................................................................3-14
Figure 3-11 Querying GTMU alarms.................................................................................................................3-15
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Figure 3-12 Loosening the screws......................................................................................................................3-16
Figure 3-13 Checking whether the CPRI signal transmission is resumed.........................................................3-18
Figures
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Tables
Table 2-1 Board configuration principles of the BBU3900.................................................................................2-3
Table 2-2 Ports on the UEIU................................................................................................................................2-5
Table 2-3 LEDs on the GTMU.............................................................................................................................2-6
Table 2-4 Ports on the GTMU panel....................................................................................................................2-7
Table 2-5 Settings of S1.......................................................................................................................................2-8
Table 2-6 Settings of S2.......................................................................................................................................2-9
Table 2-7 Settings of S4.......................................................................................................................................2-9
Table 2-8 Settings of S5.......................................................................................................................................2-9
Table 2-9 Ports on the panel of the UELP..........................................................................................................2-10
Table 2-10 DIP switch on the UELP .................................................................................................................2-11
Table 2-11 LED on the UBFA...........................................................................................................................2-12
Table 2-12 LED on the UPEU............................................................................................................................2-14
Table 2-13 Ports on the UPEU...........................................................................................................................2-14
Table 2-14 Cable list...........................................................................................................................................2-15
Table 2-15 Pin assignment for wires of the -48 V power cable.........................................................................2-17
Table 2-16 Pin assignment for wires of the +24 V power cable........................................................................2-17
Table 2-17 Pin assignment for the wires of the 75-ohm E1 coaxial cable.........................................................2-18
Table 2-18 Pin assignment for the wires of the 120-ohm E1 twisted pair cable................................................2-19
Table 2-19 Pin assignment for the wires of the E1 surge protection transfer cable...........................................2-20
Table 2-20 Pin assignment for the wires of the monitoring signal cable between the APMI and the BBU......2-21
Table 2-21 Pin assignment for the fiber tails of the CPRI optical cable............................................................2-22
Table 2-22 Pin assignment for the wires of the alarm cable...............................................................................2-23
Table 2-23 Parameters for the ports on the DCDU-03B panel...........................................................................2-25
Table 3-1 Maintenance items associated with the BBU.......................................................................................3-2
BBU3900 GSM
User Guide Tables
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About This Document
Purpose
This document provides an overview of the BBU3900 GSM hardware for the planning and
deployment of the BBU3900 GSM. It describes the BBU3900 GSM boards and modules, ports
and related functions, categories of cables, and specifications and installation positions of the
connectors. This document also presents various installation modes and maintenance
information of the BBU3900 GSM.
Product Version
The following table lists the product version related to this document.
Product Name Product Version
BBU3900 GSM(referred to as
BBU3900 in this manual)
V300R008
Intended Audience
This document is intended for:
lBBU3900 installers
lMaintenance engineers
lTechnical support engineers
Change History
For changes in the document, refer to Changes in BBU3900 GSM User Guide.
Organization
1 Safety Information
2 BBU3900 Hardware
This describes the boards, modules, cables, and auxiliary equipment of the BBU3900 to provide
reference for planning the deployment of the DBS3900.
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3 Maintaining BBU3900 Hardware
After the site is put into use, routine maintenance on the BBU is required to ensure that it runs
properly in the long term.
Conventions
1. Symbol Conventions
The following symbols may be found in this document. They are defined as follows
Symbol Description
DANGER
Indicates a hazard with a high level of risk that, if not avoided,
will result in death or serious injury.
WARNING
Indicates a hazard with a medium or low level of risk which, if
not avoided, could result in minor or moderate injury.
CAUTION
Indicates a potentially hazardous situation that, if not avoided,
could cause equipment damage, data loss, and performance
degradation, or unexpected results.
TIP Indicates a tip that may help you solve a problem or save your
time.
NOTE Provides additional information to emphasize or supplement
important points of the main text.
2. General Conventions
Convention Description
Times New Roman Normal paragraphs are in Times New Roman.
Boldface Names of files,directories,folders,and users are in boldface. For
example,log in as user root .
Italic Book titles are in italics.
Courier New Terminal display is in Courier New.
3. Command Conventions
Convention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italic.
[ ] Items (keywords or arguments) in square brackets [ ] are optional.
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Convention Description
{x | y | ...} Alternative items are grouped in braces and separated by vertical
bars.One is selected.
[ x | y | ... ] Optional alternative items are grouped in square brackets and
separated by vertical bars.One or none is selected.
{ x | y | ... } * Alternative items are grouped in braces and separated by vertical
bars.A minimum of one or a maximum of all can be selected.
[ x | y | ... ] * Alternative items are grouped in braces and separated by vertical
bars.A minimum of zero or a maximum of all can be selected.
4. GUI Conventions
Convention Description
Boldface Buttons,menus,parameters,tabs,window,and dialog titles are in
boldface. For example,click OK.
>Multi-level menus are in boldface and separated by the ">" signs.
For example,choose File > Create > Folder .
5. Keyboard Operation
Convention Description
Key Press the key.For example,press Enter and press Tab.
Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+A
means the three keys should be pressed concurrently.
Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the two
keys should be pressed in turn.
6. Mouse Operation
Action Description
Click Select and release the primary mouse button without moving the
pointer.
Double-click Press the primary mouse button twice continuously and quickly
without moving the pointer.
Drag Press and hold the primary mouse button and move the pointer
to a certain position.
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1 Safety Information
1.1 Safety Precautions
This section describes certain safety precautions and helps to choose the measurement device
and testing device. Read and follow these safety precautions before installing, operating, and
maintaining Huawei devices.
Following All Safety Precautions
Before any operation, read the instructions and precautions in this document carefully to
minimize the possibility of accidents.
The Danger, Caution, and Note items in the package of documents do not cover all the safety
precautions that must be followed. They only provide the generic safety precautions for
operations.
Symbols
DANGER
This symbol indicates that casualty or serious accident may occur if you ignore the safety
instruction.
CAUTION
This symbol indicates that serious or major injury may occur if you ignore the safety instruction.
NOTE
This symbol indicates that the operation may be easier if you pay attention to the safety instruction.
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Complying with the Local Safety Regulations
When operating the device, comply with the local safety regulations. The safety precautions
provided in the documents are supplementary. You must comply with the local safety
regulations.
General Installation Requirements
The personnel in charge of installation and maintenance must be trained and master the correct
operating methods and safety precautions before beginning work.
The rules for installing and maintaining the device are as follows:
lOnly the trained and qualified personnel can install, operate and maintain the device.
lOnly the qualified specialists are allowed to remove the safety facilities, and repair the
device.
lAny replacement of the device or part of the device (including the software) or any change
made to the device must be performed by qualified or authorized personnel of Huawei.
lAny fault or error that might cause safety problems must be reported immediately to the
personnel in charge.
Grounding Requirements
The following requirements are applicable to the device to be grounded:
lGround the device before installation and remove the ground cable after uninstallation.
lDo not operate the device in the absence of a ground conductor. Do not damage the ground
conductor.
lThe unit (or system) must be permanently connected to the protection ground before
operation. Check the electrical connection of the device before operation and ensure that
the device is reliably grounded.
Safety of Personnel
Ensure the following:
lWhen lightning strikes, do not operate the device and cables.
lWhen lightning strikes, unplug the AC power connector. Do not use the fixed terminal or
touch the terminal or antenna connector.
NOTE
The previous two requirements are suitable for the wireless fixed terminal.
lTo prevent electric shock, do not connect safety extra-low voltage (SELV) circuits to
telecommunication network voltage (TNV) circuits.
lTo prevent laser radiation from injuring your eyes, never look into the optical fiber outlet
with unaided eyes.
lTo prevent electric shock and burns, wear the electrostatic discharge (ESD) clothing, gloves
and wrist strap, and remove conductors such as jewelry and watch before operation.
1 Safety Information
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Device Safety
lBefore operation, the device must be secured on the floor or other fixed objects, such as
the walls and the mounting racks.
lDo not block ventilation openings while the system is running.
lWhen installing the panel, tighten the screw with the tool.
1.2 Electricity Safety
High Voltage
DANGER
lThe high voltage power supply provides power for running the system. Direct contact with
the high voltage power supply or contact through damp objects may result in fatal danger.
lNon-standard and improper high voltage operations may result in fire and electric shock.
lThe personnel who install the AC facility must be qualified to perform operations on high
voltage and AC power supply facilities.
lWhen installing the AC power supply facility, follow the local safety regulations.
lWhen operating the AC power supply facility, follow the local safety regulations.
lWhen operating the high voltage and AC power supply facilities, use the specific tools
instead of common tools.
lWhen the operation is performed in a damp environment, ensure that water is kept off the
device. If the cabinet is damp or wet, shut down the power supply immediately.
Thunderstorm
The following requirements are suitable only for the wireless base station or the device with an
antenna or GPS antenna.
DANGER
In a thunderstorm, do not perform operations on high voltage and AC power supply facilities or
on a steel tower and mast.
High Electrical Leakage
CAUTION
Ground the device before powering on the device. Otherwise, the personnel and device are in
danger.
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If the "high electrical leakage" flag is stuck to the power terminal of the device, you must ground
the device before powering it on.
Power Cable
CAUTION
Do not install and remove the power cable with a live line. Transient contact between the core
of the power cable and the conductor may generate electric arc or spark, which may cause fire
or eye injury.
lBefore installing or removing the power cable, turn off the power switch.
lBefore connecting the power cable, ensure that the power cable and label comply with the
requirements of the actual installation.
Fuse
CAUTION
To ensure that the system runs safely, when a fuse blows, replace it with a fuse of the same type
and specifications.
Electrostatic Discharge
CAUTION
The static electricity generated by the human body may damage the electrostatic sensitive
components on the circuit board, such as the large-scale integrated circuit (LIC).
In the following situations, the human body generates a static electromagnetic field:
lMovement of body parts
lClothes friction
lFriction between shoes and the ground
lHolding plastic in hand
The static electromagnetic field will remain within the human body for a long time.
Before contacting the device, plug boards, circuit boards, and application specific integrated
circuits (ASICs), wear a grounded ESD wrist strap. It can prevent the sensitive components from
being damaged by the static electricity in the human body.
Figure 1-1shows how to wear an ESD wrist strap.
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Figure 1-1 Wearing an ESD wrist strap
1.3 Inflammable Environment
DANGER
Do not place the device in the environment that has inflammable and explosive air or fog. Do
not perform any operation in this environment.
Any operation of the electrical device in the inflammable environment causes danger.
1.4 Battery
Storage Battery
DANGER
Before handling the storage battery, read the safety precautions for the handling and connection
of the storage battery.
Incorrect operation of storage batteries may cause danger. During operation, ensure the
following:
lPrevent any short-circuit.
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lPrevent the electrolyte from overflowing and leakage.
Electrolyte overflow may damage the device. It will corrode the metal parts and the circuit
boards, and ultimately damage the device and cause short-circuit of the circuit boards.
General Operations
Before installing and maintaining the storage battery, ensure the following:
lUse special insulation tools.
lUse eye protection devices and operate with care.
lWear rubber gloves and an apron in case of an electrolyte overflow.
lAlways keep the battery upright when moving. Do not place the battery upside down or tilt
it.
Short-Circuit
DANGER
Short-circuit of the battery may cause injury. Although the voltage of a battery is low, high
transient current generated by short-circuit will release a surge of power.
Keep metal objects away from the battery to prevent short circuit. If they have to be used,
disconnect the battery in use before performing any other operation.
Harmful Gas
CAUTION
lDo not use unsealed lead-acid storage batteries, because the gas emitted from it may result
in fire or device corrosion.
lLay the storage battery horizontally and fix it properly.
The lead-acid storage battery in use will emit flammable gas. Therefore, store it in a place with
good ventilation and take precautions against fire.
High Temperature
CAUTION
High temperature may result in distortion, damage, and electrolyte overflow of the battery.
When the temperature of the battery exceeds 60oC, check whether there is acid overflow. If acid
overflow occurs, handle the acid immediately.
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Acid
CAUTION
If the acid overflows, it should be absorbed and neutralized immediately.
When handling a leaky battery, protect against the possible damage caused by the acid. Use the
following materials to absorb and neutralize acid spills:
lSodium bicarbonate (baking soda): NaHCO3
lSodium carbonate (soda): Na2CO3
Antacids must be used according to the instructions provided by the battery manufacturer.
Lithium Battery
CAUTION
There is danger of explosion if the battery is incorrectly replaced.
lReplace the lithium battery with the same or equivalent type recommended by the
manufacturer.
lDispose of the used battery according to the instructions provided by the manufacturer.
lDo not dispose of the lithium battery in fire.
1.5 Radiation
Electromagnetic Field Exposure
CAUTION
High power radio-frequency signals are harmful to human body.
Before installing or maintaining an antenna on a steel tower or mast with a large number of
transmitter antennas, the operator should coordinate with all parties to ensure that the transmitter
antennas are shut down.
The base transceiver station (BTS) has RF radiation (radiation hazard). Suggestions for the
installation and operation of BTSs are given in the following section. Operators are also required
to comply with the related local regulations on erecting BTSs.
lThe antenna should be located in an area that is inaccessible to the public where the RF
radiation exceeds the stipulated value.
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lIf the areas where RF radiation exceeds the stipulated value are accessible to workers,
ensure that workers know where these areas are. They can shut down the transmitters before
entering these areas. Such areas may not exist; but if they exist, the areas must be within a
range of less than 10 m around the antennas.
lEach forbidden zone should be indicated by a physical barrier and striking sign to warn the
public or workers.
Laser
CAUTION
When handling optical fibers, do not stand close to, or look into the optical fiber outlet with
unaided eyes.
Laser transceivers or transmitters are used in the optical transmission system and associated test
tools. Because the laser that is transmitted through the optical fiber produces a small beam of
light, it has a very high power density and is invisible to human eyes. If a beam of light enters
the eye, the retina may be damaged.
Normally, staring into the end of an unterminated optical fiber or broken optical fiber with the
unaided eyes from a distance of more than 150 mm [5.91 in.] will not cause eye injury. Eyes
may, however, be damaged if an optical tool such as a microscope, magnifying glass or eye
loupe is used to stare into the bare optical fiber end.
Read the following guidelines to prevent laser radiation:
lOnly the trained and authorized personnel can perform the operation.
lWear a pair of eye-protective glasses when you are handling lasers or optical fibers.
lEnsure that the optical source is switched off before disconnecting optical fiber connectors.
lNever look into the end of an exposed optical fiber or an open connector if you cannot
ensure that the optical source is switched off.
lTo ensure that the optical source is switched off, use an optical power meter.
lBefore opening the front door of an optical transmission system, ensure that you are not
exposed to laser radiation.
lNever use an optical tool such as a microscope, a magnifying glass, or an eye loupe to look
into the optical fiber connector or end.
Read the following instructions before handling optical fibers:
lOnly the trained personnel can cut and splice optical fibers.
lBefore cutting or splicing an optical fiber, ensure that the optical fiber is disconnected from
the optical source. After disconnecting the optical fiber, use protecting caps to protect all
the optical connectors.
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