Huawei Lampsite RHUB3908 Maintenance Manual page 32

LampSite
Site Maintenance Guide
l On the UMTS side, log in to the LMT and run the BLK BRD command to block the RF
l On the LTE side, log in to the LMT and run the BLK BRD command to block the RF daughter
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.
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
8-2.
Figure 8-2 Removing the pRRU housing
Issue 02 (2014-05-27)
daughter board.
board.
CAUTION
NOTICE
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5.2 Powering Off the pRRU.
8 Replacing the RF Daughter Board
Figure
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