1-4
Power supply LEDs
Each power supply provides two LEDs to indicate its operating status.
Table1-10 Power supply LED description
LED
Status
Description
PSR1800-56A
AC OK
Green
Normal power input
Off
Abnormal or no power input
DC OK
Green
Normal power output
Red
Abnormal power output
Off
No power output
PSR1800-56D
IN OK
Green
Normal power input
Off
Abnormal or no power input
OUT OK
Green
Normal power output
Red
Abnormal power output
Off
No power output