DBS3900 LampSite
Installation Guide
7 Installing a pRRU3901
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
108
If the RUN Indicator... Because...
Then...
board is faulty.
rectify the fault, and power on
the pRRU3901.
Steady off
There is no power input, or an
alarm is reported on the
board.
Power off the power supply
and check the power input. If
no fault is found after the
pRRU3901 is powered off,
clear the fault on the board,
and power on the pRRU3901.
On for 1s and off for 1s
The device works properly.
End this operation.
On for 0.125s and off for
0.125s
The software of the board is
loading.
Wait five minutes for the
software to be successfully
loaded. If the software is
loading five minutes later,
shut off the power supply.
Check whether the data
configuration file is correct.
After the fault is rectify,
power on the pRRU3901
again.
Check the indicator status 30 minutes after the power-on if a pRRU is not connected to any BBU. The
pRRU is considered normally powered on when any indicator on the pRRU is on.
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