H3C Technologies H3C MSR 20-1X - Manual (Page 72)

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Troubleshooting
Troubleshooting the Power System
Symptom:
The PWR LED on the front panel is OFF.
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 output voltage of the power source is compliant with the voltage indicated on the label of the
router.
Troubleshooting the Configuration System
If the router passes POST after power-on, the startup information of the router will be displayed on the
console terminal. If the configuration system is faulty, nothing or illegible characters will be displayed on
the console terminal.
Symptom 1:
After the router is powered on, nothing is displayed on the console terminal.
Solution:
1. Check that:
• The power system is normal.
• The console cable is correctly connected.
2. Check the console cable and the terminal (HyperTerminal for example) parameter settings.
Symptom 2:
After the router is powered on, illegible characters are displayed on the console terminal.
Solution:
Verify that the terminal parameter settings are as follows:
Bits per second: 9600
Data bits: 8
Parity: None
Stop bit: 1
Flow control: None
Terminal emulation: VT100
Reconfigure the parameters if their values are different.