Replacing The Optical Modules - Huawei DBS3900 WiMAX Maintenance Manual

DBS3900 WiMAX
Site Maintenance Guide (Draft)
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.
Prerequisite
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Context
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Procedure
Step 1 Press the latch on the connector of the optical fiber connector, and then remove the connector
from the faulty optical module.
Issue 01 (2009-11-30)
5

Replacing the Optical Modules

Check the quantity and type of the faulty optical modules and prepare new optical modules.
Record the installation position and connection points of the faulty optical modules and the
optical fibers.
The required tools and materials are ready. The tools or materials include the ESD wrist
strap or ESD gloves, and the ESD box or bag.
The optical modules are hot-swappable.
Replacing the BTS3702E optical module involves removing the optical fibers and faulty
optical modules, installing the new optical modules, connecting the optical fibers to the
optical modules, and recovering the links. The operation takes about five minutes.
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to
prevent boards, modules, and electronic components from being destroyed by static discharge
from the human body.
After removing the optical fibers from the optical modules, do not look directly at the optical
modules and optical fiber connectors without taking the necessary eye-protection measures.
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5 Replacing the Optical Modules
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