Huawei DBS3900 WiMAX Maintenance Manual page 8

Organization
Organization
1 Preparations for Site Maintenance
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.
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.
Symbol
2
Description
Indicates a hazard with a high level of risk, which if not
avoided,will result in death or serious injury.
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Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Issue 01 (2009-11-30)