Huawei Lampsite RHUB3908 Maintenance Manual page 38

LampSite
Site Maintenance Guide
A pRRU that has just been powered off has afterheat. Take scald-proof measures when removing
the Wi-Fi daughter board.
Step 3 Power off the pRRU by referring to
Step 4 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 5 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
9-2.
Figure 9-2 Removing the pRRU housing
Step 6 Remove the Wi-Fi daughter board installed in slot S1.
Issue 02 (2014-05-27)
CAUTION
NOTICE
NOTE
l The pRRU housing and the Wi-Fi daughter board can be secured using Phillips screws or protection
screws, requiring the same installation operations. This section uses Phillips screws as an example.
l Keep the protection screw secure for future use.
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9 Replacing the Wi-Fi Daughter Board
5.2 Powering Off the pRRU.
Figure
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