
DRH3980A&3909A&3918A&
3918B&3921A&3921B&3926A
Hardware Description
2 DRH Introduction
Issue DraftA (2013-08-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd..
6
Item
Silkscreen
Description
ALM
ACT
VSWR
CPRI0
CPRI1
2.5 DRH Indicators
This section describes six indicators on a DRH. They indicate the running status.
For detailed positions of DRH indicators, see
Table 2-3
DRH indicators
Indicator
s
Color
Status
Description
RUN
Green
Steady on
There is power supply, but the module is
faulty.
Steady off
There is no power supply, or the module is
faulty.
Blinking (on for
1s and off for 1s)
The module is running 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 DRH running.
Blinking (on for
The module is running properly with TX