136
Table 56 Description of PWR LEDs with numbers
LEDs
OK FAIL
Description
On Off The corresponding power module is working properly.
Off On
The corresponding power module has no output power. (The cause can
be: the power module is faulty or not switched on; a power cable
connection problem occurs; the external power supply is unavailable.)
Off Off No power module is installed in the corresponding slot.
Fan LEDs (FAN)
The SRPU provides two fan LEDs—OK and FAIL—to indicate the working status of the fan tray.
Table 57 Fan LED description
LEDs
OK FAIL
Description
On Off The fan tray is working properly.
Off On A fan problem occurs or the fan tray is not in position.
Off Off The switch is not powered on.
Card LEDs (SLOT)
The SRPU provides card LEDs (SLOT). Table 58 shows the LED description.
• The LSQ1MPUA0 SRPU provides numbered LEDs to indicate the status of LPUs in the corresponding
slots. The SRPU LED indicates the working status of the SRPU itself.
• Other SRPU models provide LEDs without numbers to indicate the status of active SRPUs, standby
SRPUs, and LPUs.
NOTE:
The number of a slot on the S7506-V is marked on both left and right sides of the slot, and that on other
models is marked on the right side of the slot.
Table 58 Card LED description
LEDs
RUN ALM
Description
Blinking Off The card is working properly.
Off On The corresponding card is faulty.
Off Off
This status occurs in the following cases:
• The corresponding card is not in position.
• The card is not started (the software version of the switch does not match
that of the card).
On On The corresponding LPU is starting up.
On Off The corresponding SRPU is starting up.
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