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NOTE:
If the problem persists, contact the HP technical support for help.
Fan failure (only for the 5120 EI switches)
You can look at the system status LED and the seven-segment LED of a 5120 EI switch to identify a fan
failure. If both LEDs are behaving as described in Table 14, a f
an failure occurs.
Table 14 LED behaviors that identify a fan failure
LED Mark State
System status LED PWR Steady red
Seven-segment LED Unit
The LED flashes F for fan failure.
The 5120 EI switches use fixed 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 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