H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 36)

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Troubleshooting
Power supply failure
You can look at the RPS LED and PWR LED of the switch to identify a power system failure.
• The RPS LED is off if DC power input is abnormal or there is no DC input.
• The RPS LED is steady yellow or the PWR LED is off if AC power input is abnormal or there is no AC
power input.
Verify the following items:
• The switch power cord is properly connected;
• The power input to the switch meets the requirements.
Configuration terminal problems
If the configuration environment setup is correct, the configuration terminal displays booting information
when the switch is powered on. If the setup is incorrect, the configuration terminal displays nothing or
garbled text.
No terminal display
If the configuration terminal displays nothing when the switch is powered on, verify the following items:
• The power supply is supplying power to the switch.
• The console cable is properly connected.
• The console cable has no problem and the terminal settings are correct.
Garbled terminal display
If terminal display is garbled, verify that the following settings are configured for the terminal, for
example, HyperTerminal:
• Baud rate—9,600
• Data bits—8
• Parity—none
• Stop bits—1
• Flow control—none
• Emulation—VT100
Software loading failure
If software loading fails, the system runs the old version of the software. In this case, check if the physical
ports are properly connected.
• If the ports are not properly connected, reconnect them correctly and restart the loading process.