Huawei RRU Hardware Maintenance Manual page 49

RRU
Hardware Maintenance Guide
Step 6 Lower the puller on the faulty optical module, and then pull the puller until the optical module
is removed from the RRU.
Step 7 Choose the optical module of the same type as the faulty optical module according to the label
on the module. Install the new optical module into the RRU.
Step 8 Insert the optical fiber connector into the new optical module.
Step 9 Close the cabling cavity of the RRU and use an M4 Phillips screwdriver to tighten the screws
on the cover plate for the cabling cavity.
Step 10 Power on the RRU according to the instructions in
Step 11 Check the operating status of the new RRU by observing the status of RRU indicators. When
the RRU is working properly, the RUN indicator is blinking (on for 1s and off for 1s) and the
ALM indicator is steady off.
Step 12 Take off the ESD gloves, and pack up all the tools.
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Follow-up Procedure
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Issue 16 (2015-03-23)
The optical modules to be installed must match CPRI rates.
Place the replaced optical module into the ESD box or bag. Then, place the ESD box or
bag into a foam-padded carton or the packing box of the new module.
Fill in the fault form with detailed information about the replaced module.
Contact the local Huawei office to handle the faulty optical module.
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5 Replacing an Optical Module
3.1 Powering On an RRU.
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