Figure 4-16 Position Of The Ac Surge Protection Box - Huawei BBU3900 Hardware Maintenance Manual

BBU3900
Hardware Maintenance Guide
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Procedure
Step 1 Power off the base station.
Step 2 Wear an ESD wrist strap or a pair of ESD gloves.
Take proper ESD protection measures, for example, wear an ESD wrist strap or a pair of ESD
gloves, to prevent electrostatic damage to the boards, modules, or electronic components.
Step 3 Record all the cable connections on the panel of the AC surge protection box to be replaced.
Step 4 Disconnect the power cable and monitoring cable from the AC surge protection box, as shown
in Figure
Issue 03 (2010-06-05)

Figure 4-16 Position of the AC surge protection box

(1) AC surge protection box
Replacing the AC surge protection box disrupts the surge protection function of the base
station. Therefore, the AC surge protection box should be replaced in 10 minutes.
CAUTION
4-17.
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4 Replacing the Components in the OMB
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