The Switch 4210G switches use fixed fans. If a fixed fan failure occurs, you cannot solve the problem by yourself. Please contact your sales agent or service engineer.
To ensure the normal operation of the switch, you need to contact the local sales agent or service engineer as soon as possible when a fixed fan failure occurs.
Configuration System Failure
After the switch is powered on and the system is normal, the booting information will be displayed on the configuration terminal. If the configuration system has any faults, there will not be any screen display at the configuration terminal or the displayed characters will be totally illegible.
Troubleshooting when there is no terminal display
If there is no output information after the configuration is powered on, please check whether:
z
z
The power supply is normal
The console cable is properly connected
If no problems are found after the
Troubleshooting when the terminal display is illegible
If there is illegible display at the configuration terminal, the cause might lie in the parameter setting error at the terminal (such as HyperTerminal). Verify the following terminal parameter (such as hyper terminal) settings:
z
z
z
z
z
z
Baud rate: 19,200
Data bits: 8
Parity: none
Stop bits: 1
Flow control: none
Terminal emulation: VT100.
