Powering Off An Rru - Huawei RRU Hardware Maintenance Manual

RRU
Hardware Maintenance Guide
Procedure
Step 1 On the power epuipment for the RRU, set the corresponding circuit breaker to ON or insert a
corresponding EPC connector.
Do not look into the optical module without eye protection after the RRU is powered on.
Step 2 Wait 3 to 5 minutes, and then check the status of the indicators on the RRU. For details, see
section "RRU Indicators" in the hardware description of the corresponding RRU.
Step 3 Take corresponding actions based on the status of the indicators.
If...
The RRU is working properly
The RRU is faulty
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3.2 Powering Off an RRU

An RRU can be powered off in two ways: normal power-off and emergency power-off. You
need to perform a normal power-off in scenarios such as an equipment swap or foreseeable
regional blackout, and you need to perform an emergency power-off in emergencies such as a
fire, smoke, or water damage in the equipment room.
Procedure

1.

Issue 16 (2015-03-23)
If RRUs are cascaded, check the status of all RRU indicators.
Normal power-off
If RRUs are cascaded, services carried on the lower-level RRU may be interrupted during the
replacement of the upper-level RRU.
On the power equipment for the RRU, set the corresponding circuit breaker to OFF or
remove the corresponding EPC connector.
Emergency power-off
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3 Powering On and Off an RRU
Then...
End the power-on check task.
On the power equipment for the RRU, set
the corresponding circuit breaker to OFF or
remove the corresponding EPC connector.
Rectify the fault, and then go to Step 1.
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