Indicator
Color
Status
Meaning
Steady off
There is no power supply, or the module is
faulty.
Blinking (on for
1s and off for 1s)
The board is functioning properly.
Blinking (on for
0.125s and off for
0.125s)
Software is being loaded to the module, or
the module is not started.
ALM
Red
Steady on
Alarms are generated, and the module must
be replaced.
Blinking (on for
1s and off for 1s)
Alarms are generated. The alarms may be
caused by the faults on the related boards or
ports. Therefore, you need to locate the fault
before deciding whether to replace the
module.
Steady off
No alarm is generated.
ACT
Green
Steady on
The module is running properly with TX
channels enabled or the software is being
loaded without RRU running.
Blinking (on for
1s and off for 1s)
The module is running properly with TX
channels disabled.
VSWR
Red
Steady off
No Voltage Standing Wave Ratio (VSWR)
alarm is generated.
Blinking (on for
1s and off for 1s)
VSWR alarms are generated on the
ANT_TX/RXB port.
Steady on
VSWR alarms are generated on the
ANT_TX/RXA port.
Blinking (on for
0.125s and off for
0.125s)
VSWR alarms are generated on the
ANT_TX/RXA and ANT_TX/RXB ports.
CPRI0/IR0
Red or
green
Steady green
The CPRI link is functioning properly.
Steady red
An optical module fails to transmit or receive
signals because the optical module is faulty
or the fiber optic cable is broken.
Blinking red (on
for 1s and off for
1s)
The CPRI link is out of lock because of a
failure in clock lock between two modes or
mismatched data rates over CPRI ports.
Steady off
The optical module cannot be detected, or the
optical module is powered off.
RRU3942&RRU3642
Installation Guide
3 Information About the Installation
Issue 07 (2013-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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