Troubleshooting Lpus - 3Com S7906E Getting Started Manual

Troubleshooting LPUs

Table 7-4 Description of LPU LEDs
LED
RUN (Green)
ALM (Red)
If the ALM LED of an LPU stays ON, something is wrong with the LPU. When you reset the LPU,
the ALM LED will turn on. After normal booting, the LED will be OFF.
When resetting an LPU, if the ALM LED stays OFF, the LPU may be disconnected from the power
supply. Check if the LPU is properly installed.
Status
ON/OFF The LPU is faulty or is not installed yet.
Flashing The LPU works normally.
OFF The LPU is faulty or is not installed yet.
ON The LPU works abnormally.
Description
7-5