H3C Technologies H3C S5500 Series Switches - Manual (Page 66)

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Table 30 Fan failure LEDs description
LED Mark State
System status LED PWR/SYS Steady red
Seven-segment LED Unit
The LED flashes F for fan failure.
The S5500-EI Switch Series uses built-in fans. If a built-in fan failure occurs, contact your H3C sales agent
or service engineer for help and do not attempt to solve the problem yourself.
NOTE:
To ensure the normal operation of the switch, contact the local sales agent or service engineer as soon as
possible when a fixed fan failure occurs.
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 when the switch is powered on, verify that:
• The power supply is normal.
• 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