10
Table 20 Description for switching fabric module status LEDs on a fan tray
RUN
ALM
Description
Flashing (once per
second)
Off
The switching fabric module is operating correctly.
Off
On
The switching fabric module has failed.
Flashing (once per
second)
On
•
The switching fabric module is loading software.
•
The switching fabric module is operating incorrectly. For
example, the temperature exceeds the acceptable range.
Off
Off
The switching fabric module has not started or is not powered on.
On
On
The switching fabric module is booting.
Fan tray LEDs
A fan tray uses an OK LED and a FAIL LED to indicate its operating status.
Table 21 Fan tray LED description
OK
FAIL
Description
On
Off
The fan tray is operating correctly.
Off
On
The fan tray is faulty.
Off
Off
The fan tray is not powered on.
Power module LEDs
Each power module provides two LEDs to indicate its operating status.
Table 22 Power module LED description
LED
Status
Description
PSR1800-56A
AC OK
Green
Power is being input correctly.
Off
No power is being input or an error has occurred.
DC OK
Green
Power is being output correctly.
Red
Power is being output incorrectly.
Off
No power is being output.
PSR2400-54A/PSR3000-54A
AC
Off
•
No power is being input.
•
The power module is in self-protection state because of low
input voltage.
Green
Power is being input correctly.
DC
Green
Power is being output correctly.