Powering On The Prru - Huawei DBS3900 Installation Manual

DBS3900 LampSite
Installation Guide
No.

8.7 Powering on the pRRU

This section describes the power-on check on the pRRU after the pRRU hardware is installed
and checked.
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.
The pRRU supports PoE. The RHUB supplies power to the pRRU in PoE mode through the
CPRI_E0 port on the pRRU.
Step 2 Power on the pRRU. Wait 3 to 5 minutes, check the status of the 3GPP indicator on the
pRRU.
If the 3GPP Indicator... Because...
Blinks white at 4 Hz
Blinks white at 0.5 Hz
(on for 1s and off for 1s)
Is steady white
Is steady orange.
Blinks orange at 0.5 Hz
(on for 1s and off for 1s)
Is off
Issue 08 (2016-05-30)
Item
design.
The pRRU is loading
software, configuring data, or
it is not running.
The pRRU is working
properly and does not
transmit power.
The cell is set up and
transmits power properly.
There is power input, but the
hardware is faulty.
A minor alarm (indicating an
HDLC link disconnection, for
example) is generated.
The board is not powered on.
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8 Installing a pRRU3902 or pRRU3911 or
pRRU3911+WIFI
Then...
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.
Check whether the services
have been configured and
power amplification have
been enabled on the pRRU.
No further action is required.
Power off the pRRU, rectify
the hardware fault, and then
power it on again.
Troubleshoot based on the
alarm information.
Turn off the power supply
switch and check whether the
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