Table 7-5 Common faults and troubleshooting for UIM20A expansion module
Symptom
Possible Cause
Measure
The RUN indicator is off.
The contact between the
independent deployment
AI_DI unit and the
ECC800-Pro is abnormal,
or the independent
deployment AI_DI unit is
faulty.
Check whether the cable
connection between the
ECC800-Pro and the
UIM20A expansion
module is normal and
whether the board is
faulty.
The RUN indicator is
blinking at short
intervals (2.5 Hz, on for
0.2s and then off for
0.2s).
Communication between
the independent
deployment AI_DI unit
and the main control
module is interrupted.
Check whether the cable
connection between the
ECC800-Pro and the
UIM20A expansion
module is normal,
whether the board is
faulty, and whether the
UIM20A expansion
module is added on the
ECC800-Pro WebUI.
The ALM indicator is on.
An alarm whose default
severity is major exists.
Check and clear the
alarm.
Table 7-6 Common faults and troubleshooting for the independent deployment
AI_DI unit
Symptom
Possible Cause
Measure
The PWR indicator is off.
The independent
deployment AI_DI unit is
faulty or the power to
the independent
deployment AI_DI unit is
abnormal.
Check whether the board
is faulty and whether the
cable connection
between the ECC800-Pro
and independent
deployment AI_DI unit is
normal.
The RUN indicator is off.
The contact between the
independent deployment
AI_DI unit and the
ECC800-Pro is abnormal,
or the independent
deployment AI_DI unit is
faulty.
Check whether the
independent deployment
AI_DI unit is faulty and
whether the cable
connection between the
ECC800-Pro and
independent deployment
AI_DI unit is normal.
ECC800 Data Center Controller
User Manual (for ECC800-Pro)
7 Maintenance
Issue 02 (2020-09-07)
Copyright © Huawei Technologies Co., Ltd.
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