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The 5500 EI and 5500 SI switches use built-in fans. If a fan failure occurs, contact the HP technical
support for help and do not attempt to fix the problem yourself.
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 would display nothing
or garbled text.
No terminal display
If the configuration terminal displays nothing after the switch is powered on, verify the following items:
• The power supply is supplying power to the switch.
• The console cable is correctly 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
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