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5-2
Power Supply Failure
You can check whether the power system of the switch fails by viewing the hot-swappable PWR1 or
PWR2 LED on the front panel and the LED on the power module. When the power supply system
functions normally, the corresponding LEDs should be ON. Otherwise, please check whether
z
The switch power cable is properly connected.
z
The power supply meets the requirement.
To replace the hot-swappable power module, refer to
H3C S5810 Series Ethernet Switches Installation
Manual
for detailed operation steps.
Fan Tray Failure
The fan tray do not have status LEDs. You can check the system LED and the seven-segment LED of
the device to determine whether the fan tray operates normally. If the fan tray fails, the two LEDs give an
indication, as shown in Table 5-1.
Table 5-1
Fan tray fail LEDs description
LED
Mark
State
System LED
SYS
Steady red
Seven-segment LED
Unit
The LED displays
F
for fan failure.
Only when the system LED and the seven-segment LED are displayed as steady red and F respectively
does it indicate that a fan tray fails.
To replace the fan tray, refer to
H3C S5810 Series Ethernet Switches Installation Manual
for detailed
operation steps.
Configuration Terminal 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
The power supply is normal
z
The console cable is properly connected
If no problems are found after the above-mentioned items have been checked, the cause may lie in the
console cable or the settings of the terminal (such as hyper terminal) parameters. Please perform the
corresponding check.