Step 2
Switch off the external power supply equipment for the RRU3931E.
Step 3
Opening the maintenance cavity covers. If the maintenance cavity covers cannot be opened
because the RRU3931E is installed on a wall with large-angle adjustment, perform the
following operations:
1.
Record the adjusted angle for the RRU3931E.
2.
Adjust the horizontal angle of the RRU3931E.
3.
Open the maintenance cavity covers.
Step 4
Record the connection positions of the faulty optical module and fiber optic cable.
Step 5
Press the bulge on the optical connector and remove the connector from the faulty optical
module.
NOTICE
Do not look into the disconnected fiber optic cable or optical module without eye protection.
Step 6
Lower the puller on the faulty optical module, and then pull the puller until the optical module
is removed from the RRU3931E.
Step 7
According to the label on the faulty optical module, prepare a new one of the same type.
Install the new optical module into the FE/GE optical port on the RRU3931E.
NOTE
The new optical module must match the rate at the optical FE/GE port.
Step 8
Insert the optical connector into the optical module, and closing the maintenance cavity
covers.
Step 9
Power on the new RRU3931E by following instructions provided in
1.3.1 Powering On a
RRU3931E
"
1.3.1 Powering On a RRU3931E
."
Step 10
Check the transmission of FE/GE signals by the indicator status. For the meanings of the
indicator status, see section "Ports and Indicators" in
RRU3931E Hardware Description
.
Step 11
Take off the ESD gloves and pack up all the tools.
----End
Follow-up Procedure
l
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 optical module.
l
Fill in the fault form with the detail information of the replaced optical module.
l
Contact the local Huawei office to handle the faulty optical module.
RRU3931E
Site Maintenance Guid
1 RRU3931E Site Maintenance Guide
Issue Draft A (2016-03-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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