DBS3900 LampSite
Installation Guide
9 Installing a pRRU3907 or pRRU3916
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
206
Context
After the RHUB and pRRUs are installed and connected to each other, power on them no
matter whether the BBU is installed.
Procedure
Step 1
Power on the pRRU. Wait 3 to 5 minutes, check the status of the 3GPP indicator on the
pRRU.
If the 3GPP Indicator... Because...
Then...
Blinks white at 4 Hz
The pRRU is loading
software, configuring data, or
it is not running.
Wait until the software is
loaded. If the loading is not
completed in five minutes,
power off the pRRU and
check whether the data
configuration file is correct.
After the fault is rectified,
power on the pRRU again.
Blinks white at 0.5 Hz
(on for 1s and off for 1s)
The pRRU is working
properly and does not
transmit power.
Check whether the services
have been configured and
power amplification have
been enabled on the pRRU.
Is steady white
The cell is set up and
transmits power properly.
No further action is required.
Is steady orange.
There is power input, but the
hardware is faulty.
Power off the pRRU, rectify
the hardware fault, and then
power it on again.
Blinks orange at 0.5 Hz
(on for 1s and off for 1s)
A minor alarm (indicating an
HDLC link disconnection, for
example) is generated.
Troubleshoot based on the
alarm information.
Is off
The board is not powered on.
Turn off the power supply
switch and check whether the
power input is normal. If the
power input is normal, check
for and rectify board faults,
and turn on the power supply
switch 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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