H3C Technologies H3C MSR 30 - Manual (Page 96)

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Troubleshooting
Troubleshooting the Power System
Symptom:
The PWR LED RUN is OFF or blinking.
Solution:
Check that:
• The power switch on the router is turned on.
• The switch of the power source is turned on.
• The power cord is correctly connected.
• The power source meets the requirement of the router.
Troubleshooting the Configuration System
If the router passes POST after powered up, the console screen displays the startup banner; if faults occur
to the configuration system, the console screen displays nothing or only illegible characters.
Troubleshooting the console terminal
Symptom:
After the router is powered on, the console screen displays nothing.
Solution:
Step 1: Check that:
• The power system is normal.
• The console cable is correctly connected.
Step 2: Check the console cable and the terminal (HyperTerminal for example) settings.
Troubleshooting the console terminal
Symptom:
After the router is powered on, the console screen displays illegible characters.
Solution:
Verify that the terminal settings are as follows:
• Baud: 9600
• Data bits: 8
• Stop bit: 1
• Parity: None
• Flow control: None
• Terminal emulation: VT100