Troubleshooting; Power Supply Failure; System Configuration Problems; No Terminal Display - H3C MSR 930 Installation Manual

Troubleshooting

IMPORTANT:
• The barcode on the router chassis contains product information that must be provided to local
sales agent before you return a faulty router for service.
• Keep the tamper-proof seal on a mounting screw on the chassis cover intact, and if you want
to open the chassis, contact H3C for permission. Otherwise, H3C shall not be liable for any
consequence.

Power supply failure

Symptom
The router cannot be powered on and LEDs on the front panel are off.
Solution
To resolve the issue:
1. Power off the router.
2. Verify that the router's power cables are connected firmly.
3. Verify that the power source is operating correctly.
4. Determine if the power cable is damaged.
5. If the issue persists, contact H3C Support.

System configuration problems

If the configuration environment setup is correct, the console terminal displays boot information
when the router is powered on. If the setup is incorrect, the console terminal displays nothing or
garbled text.

No terminal display

Symptom
The console terminal displays nothing when the router is powered on.
Solution
To resolve the issue:
1. Verify that the power supply system is operating correctly.
2. Verify that the console cable is connected correctly.
3. Verify that the console cable is connected to the serial port of the console terminal.
4. Verify that the following terminal settings are correct:
Bits per second—9600.

Data bits—8.

Parity—None.

Stop bits—1.

Flow control—None.

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