3Com H3C S7503E-S CHASSIS Installation Manual page 31

The LEDs on the card panel indicate the statuses of the power modules, fan tray, two LPUs, and
LSQ1MPUA0 itself.
Power status LEDs
PWR1 and PWR2: The LEDs show the status of the two power modules (AC or DC).
Table 1-21 Description of the power status LEDs
LED
OK
FAIL
Fan status LEDs
FAN: The LEDs show the status of the fan tray.
Table 1-22 Description of the fan status LEDs
LED
OK
FAIL
LPU status LEDs (SLOT2, SLOT3, MPU)
SLOT2 and SLOT3: The LEDs show the status of the LPUs in slot 2 and slot 3.
MPU: The LEDs show the status of the LSQ1MPUA0 itself.
Table 1-23 Description of LPU status LEDs
LED
RUN
ALM
If the RUN LED flashes at a high frequency, the card is in the startup process, but is not yet operational.
At system startup, the ALM LED will be ON for a while but it does not mean that the card is faulty.
ACTIVE LED
The ACTIVE LED shows the active/standby status of the LSQ1MPUA0. If the ACTIVE LED is ON, the
LSQ1MPUA0 is active; if OFF, the LSQ1MPUA0 is standby.
ON: The power module works normally.
OFF: The power module is faulty or out of position.
ON: The power module is faulty, or there is no power input to the power
module, or the power switch is turned off.
OFF: The power module is operational or out of position.
ON: The fans operate normally.
OFF: The fans are faulty or out of position.
ON: The fans are faulty or out of position.
OFF: The fans operate normally.
ON/OFF: The LPU is faulty or out of position.
Blinking: The LPU is operating normally.
OFF: The LPU is operational or out of position.
ON: The LPU is faulty.
1-24
Description
Description
Description