Huawei 3900 Series Commissioning Manual page 142

6 Commissioning the MBTS by Using USB and M2000
Step 2 Check the ALM LEDs on the PMU/AFMU/EMUA.
If the ALM LED Is... It Indicates That...
OFF
ON
Step 3 Check the VSWR LED status of the MRFU/RRU3908, and perform the next step based on the
status of the VSWR LED.
6-24
If the CPRI LED Is...
OFF
ON (red)
Blinking red, ON for 1s,
OFF for 1s)
Blinking (red, ON for
0.25s, OFF for 0.25s)
The module or the
device is functioning
properly.
The module or the
device is faulty.
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3900 Series Multi-Mode Base Station
It Indicates That...
The port of the optical
module is not configured,
the optical module is
powered off, or the LED is
faulty.
The port of optical module
is configured, but the
optical module is not in
position, or the CPRI
optical cable is improperly
connected.
The RRU or LRFU on the
CPRI link reports the
VSWR alarm.
The RRU or LRFU on the
CPRI link is faulty.
Then...
The check is complete.
Reinstall the module or power on the
device again to check whether the fault is
rectified.
Commissioning Guide
Then...
If the MRFU or RRU3908
is connected to this port,
check the installation of
BBU and RRU according to
configuration
requirements.
If the installation is
l
inconsistent with
configuration
requirements, reinstall
the RRU according to
configuration
requirements.
If the installation is
l
consistent with
configuration
requirements, replace
the boards.
Handle the alarm according
to the suggestions. For
details, see Alarm
Reference.
Handle the alarm according
to the suggestions. For
details, see Alarm
Reference.
Handle the alarm according
to the suggestions. For
details, see Alarm
Reference.
Issue 02 (2010-07-30)