l
On the UMTS side, log in to the LMT and run the
BLK BRD
command to block the RF
daughter board.
l
On the LTE side, log in to the LMT and run the
BLK BRD
command to block the RF daughter
board.
CAUTION
A pRRU that has just been powered off has afterheat. Take scald-proof measures when removing
the modules.
Step 2
Power off the pRRU by referring to
.
Step 3
Wear ESD gloves.
NOTICE
Take proper ESD protection measures. For example, wear ESD gloves to prevent electrostatic
damage to the boards, modules, or electronic components.
Step 4
Use the M4 Phillips screwdriver to loosen the Phillips screw on the pRRU housing. Wrench and
remove the housing from the installation position of the Phillips screw hole, as shown in
Figure 8-2
Removing the pRRU housing
LampSite
Site Maintenance Guide
8 Replacing the RF Daughter Board
Issue 02 (2014-05-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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