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Checking LEDs
LEDs on PSUs, fans, and the front panels of switches indicate the operational
status of the devices. After you have installed a PSU or fan and have powered on
the switch, check the LEDs to verify operation by using the following tables.
PWR01
The following table describes LEDs on the PWR01 and PWR02 power supply
units.
PWR02
LED
FAULT
PWR
GOOD
PWR05
The following table describes LEDs on the PWR05 power supply unit.
LED
~
FAN01
The following table describes LEDs on the FAN01 fan-only module.
LED
FAULT
FAN03
The following table describes LEDs on the FAN03 chassis fan module.
LED
FAN
STATUS
State
Description
Red
The temperature on the PSU has exceeded the limit of
75º C (167º F), or the fan failed.
Green
A PSU is installed in the switch and is delivering power.
State
Description
Green
AC input voltage is within 90-264VAC, 47-63Hz.
Off
AC input voltage is outside the acceptable range.
Green
DC output voltage is within 12V +/- 10%.
Off
DC output voltage is outside the acceptable range.
Red
A fault has occurred. There is either a fan failure, or the
temperature has exceeded its limit of 70ºC (158ºF).
Off
No fault conditions detected.
State
Description
Red
The fan has failed.
State
Description
Red
The fan has failed.
Installation Guide
13
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