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DBS3900 WiMAX
Site Maintenance Guide (Draft)Contents
Contents
About This Document.....................................................................................................................1
1 Preparations for Site Maintenance.........................................................................................1-1
2 Tasks of Routine Hardware Maintenance.............................................................................2-1
2.1 Maintenance of Power Supply System and Grounding System of the BTS3702E.........................................2-2
2.2 Maintenance of BTS3702E Main Equipment.................................................................................................2-2
2.3 Maintenance of Cables....................................................................................................................................2-3
3 Powering On and Powering Off the BTS3702E....................................................................3-1
3.1 Powering On the BTS3702E...........................................................................................................................3-2
3.2 Powering Off the BTS3702E..........................................................................................................................3-4
4 Replacing the BTS3702E Modules..........................................................................................4-1
5 Replacing the Optical Modules ..............................................................................................5-1
6 Replacing the Power Modules ................................................................................................6-1
7 Replacing the BTS3702E Cables..............................................................................................7-1
7.1 Replacing the Power Cables of the BTS3702E...............................................................................................7-2
7.2 Replacing the Signal Cables of the BTS3702E...............................................................................................7-3
7.3 Replacing the Transmission Cables of the BTS3702E...................................................................................7-4
7.3.1 Replacing the Ethernet Cables...............................................................................................................7-4
7.3.2 Replacing the Optical Fibers..................................................................................................................7-5
7.4 Replacing the RF Jumpers of the BTS3702E..................................................................................................7-6
Issue 01 (2009-11-30)Huawei Proprietary and Confidential
DBS3900 WiMAX
Site Maintenance Guide (Draft)About This Document
About This Document
Overview
After completing the deployment and acceptance test of the BTS3702E, Huawei conducts
routine maintenance to ensure that the BTS3702E operates in its optimum capacity.
The document describes the tasks of the routine hardware maintenance of the BTS3702E,
including the maintenance of the power supply system and grounding system, the maintenance
of the BTS3702E main equipment, and the maintenance of the cables. In addition, the document
provides guidance for the replacement of modules and cables.
Version
The following table lists the product version related to this document.
Product NameVersion
BTS3702EV300R002
Intended Audience
This document is intended for:
lSystem engineers
lSite maintenance personnel
Change History
VersionChange History
01(2009-11-25)This is the initial release.
Issue 01 (2009-11-30)Huawei Proprietary and Confidential
The preparations for the maintenance of the BTS3702E site include obtaining site information,
selecting maintenance tasks, and preparing maintenance tools and spare parts.
2 Tasks of Routine Hardware Maintenance
The tasks of the routine hardware maintenance of the BTS3702E include the maintenance of the
power supply system and grounding system, the maintenance of the main equipment of the
BTS3702E, and the maintenance of the cables.
3 Powering On and Powering Off the BTS3702E
When maintaining the BTS3702E, you need to power on and power off the BTS3702E. During
power-on, check the power supply voltage of the BTS3702E and the states of the indicators on
the BTS3702E. Power off the BTS3702E on a regular basis or in an emergency according to
actual requirements.
DBS3900 WiMAX
Site Maintenance Guide (Draft)
4 Replacing the BTS3702E Modules
The BTS3702E is an integrated outdoor micro BTS of Huawei WiMAX Micro. Replacing the
BTS3702E modules disrupts all services carried by this BTS.
5 Replacing the Optical Modules
The optical module provides an interface for photoelectric conversion, which enables the
transmission between the BTS3702E and other equipment through the optical fiber. It is used
to connect the ASN-GW or cascading connections between the BTSs. Remove the optical fibers
first when replacing the optical modules. This disrupts the transmission signal.
6 Replacing the Power Modules
The power module is used to shift the power level to enable the transmission between the
BTS3702E and other equipment through Ethernet cables. It is used to connect the ASN-GW or
cascading connections between the BTSs. Remove the Ethernet cables first when replacing the
power modules. This disrupts the transmission signal .
7 Replacing the BTS3702E Cables
When the BTS3702E cables are faulty, you need to replace them promptly. The cables that can
be replaced are power cables, signal cables, transmission cables, and RF jumpers.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Indicates a hazard with a high level of risk, which if not
avoided,will result in death or serious injury.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)Organization
SymbolDescription
Indicates a hazard with a medium or low level of risk, which
if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation, which if not
avoided,could result in equipment damage, data loss,
performance degradation, or unexpected results.
Indicates a tip that may help you solve a problem or save
time.
Provides additional information to emphasize or supplement
important points of the main text.
General Conventions
The general conventions that may be found in this document are defined as follows.
ConventionDescription
Times New RomanNormal paragraphs are in Times New Roman.
BoldfaceNames of files, directories, folders, and users are in
boldface. For example, log in as user root.
ItalicBook titles are in italics.
Courier New
Examples of information displayed on the screen are in
Courier New.
Command Conventions
The command conventions that may be found in this document are defined as follows.
ConventionDescription
BoldfaceThe keywords of a command line are in boldface.
ItalicCommand arguments are in italics.
[ ]Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... }Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ]Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }
*
Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
Issue 01 (2009-11-30)Huawei Proprietary and Confidential