territorial blackout. You must also power off an RRU in an emergency such as a fire, smoke, or
water immersion occurs in the equipment room.
Procedure
l
Normal power-off
1.
Set the corresponding circuit breaker on the auxiliary power device for the RRU to
OFF.
l
Emergency power-off
CAUTION
Emergency power-off may damage the RRU. Therefore, this type of power-off is not
recommended in normal cases.
1.
Shut off the external input power of the auxiliary power device for the RRU.
2.
If time permits, set the corresponding circuit breaker on the auxiliary power device
for the RRU to OFF.
----End
RRU3201
Hardware Maintenance Guide
3 Powering On and Off an RRU
Issue 04 (2011-09-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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