Troubleshooting Rs485 Or Ai/Di Expansion Card Faults - Huawei FusionModule5000 Maintenance Manual

FusionModule2000 Smart Modular Data Center
Maintenance Guide
Procedure
Step 1 Check whether the ECC is faulty. When the power supply is normal, check whether the
NetEco is abnormal when it is connected the ECC.
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Step 2 You can perform operations on the ECC properly after it is connected.
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4.3.2 Troubleshooting RS485 or AI/DI Expansion Card Faults

Symptom
The communication data of the RS485 or AI/DI expansion card cannot be detected.
Possible Causes
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Procedure
Step 1 Check whether the RS485 or AI/DI expansion card is normal. When the ECC is properly
powered on, check whether the RS485 or AI/DI expansion card is detected by the ECC and
whether the indicator on the expansion card is steady on.
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Step 2 Check whether the RS485 or AI/DI expansion card is in poor contact with the ECC. Properly
insert the RS485 or AI/DI expansion card into the ECC and check whether the power
indicator of the expansion card lights up.
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Issue 01 (2016-10-18)
If yes, replace the ECC and check whether the fault is rectified.
− If the fault is rectified, no further action is required.
− If the fault is not rectified, go to
If no, but the fault persists, go to
If the fault is rectified, no further action is required.
If the fault persists, contact Huawei technical support.
The RS485 or AI/DI expansion card is faulty.
The RS485 or AI/DI expansion card is in poor contact with the ECC.
If yes, go to Step 2.
If no, replace the RS485 or AI/DI expansion card by following
RS485 or AI/DI Expansion Card
− If the fault is rectified, no further action is required.
− If the fault is not rectified, go to
If the indicator lights on, the fault is rectified, and no further action is required.
If the indicator does not light up and the fault persists, contact Huawei technical support.
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Step 2.
Step 2.
and check whether the fault is rectified.
Step 2.
4 Troubleshooting
5.4.3 Replacing an
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