Huawei eSpace IAD - Unable to Run Commands; Serial Port Failure

eSpace IAD
Troubleshooting
2 Analyzing and Rectifying Faults
Issue 02 (2012-02-29)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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
If yes, go to Step 4.

If no, modify the configuration.
Step 4 Check whether the fault is rectified.

If yes, the procedure ends.

If no, go to Step 5.
Step 5 Contact Huawei technical support.
----End
2.3.22 Unable to Run Commands
Symptom
The commands can be entered but cannot be run. Whenever a command is run, a message is
displayed indicating that the system is busy and the command cannot be run.
Cause
Exceptions occur when commands are being run.
Solution
1. Press the Reset button to restart the device. (Do not turn off the power or the operation
log will be lost.)
2. Pull off power supply, and then power on the device to restart it.
3. After the system is restarted, run the display log command to view the operation log, run
the display alarm history all command to view the alarms, and enter the diagnose mode
to view the exceptions.
4. Run a command again. If the command cannot be run, go to the next step.
5. Contact Huawei technical support.
2.3.23 Serial Port Failure
Symptom
After logging in to the IAD through the serial port, you cannot enter anything through the
keyboard. In addition, no output or only illegible character is generated.
Cause
The possible causes are as follows:

The scroll lock is on.

If no output is generated, the serial cable may not be well connected.

If illegible characters are generated, the fault may be caused by incorrect parameter
configuration.

The system is down.