User Guide

Table Of Contents

l Optical modules are hot-swappable.

l It takes about five minutes to replace an optical module on the AAU, which involves

disconnecting the fiber optic cable, removing the faulty optical module, inserting a new

optical module, reconnecting the fiber optic cable, and waiting for CPRI links to restore.

Procedure

Step 1 Put on an ESD wrist strap or a pair of ESD gloves.

NOTICE

Take proper ESD protection measures, for example, put on an ESD wrist strap or a pair of ESD

gloves, to prevent electrostatic damage to the boards, modules, or other electronic components.

Step 2 Record the connections of the optical module and fiber optic cable.

Step 3 Press the latch on the optical connector, and then remove the connector from the faulty optical

module, as shown in the following figure.

Figure 5-2 Removing the cables

CAUTION

Do not look into the optical module without eye protection after removing the fiber optic cable

from the optical module.

Step 4 Lower the puller on the faulty optical module, and then pull the puller until the optical module

is removed from the AAU.

Step 5 Install a new optical module into the AAU according to the label on the module.

NOTE

The optical modules to be installed must match CPRI rates.

AAU3940

Hardware Maintenance Guide

5 Replacing the Optical Module

Issue 01 (2015-01-15) Huawei Proprietary and Confidential