About Power Supply Leds - Sun Microsystems Fire V890 Service Manual

About Power Supply LEDs

There are three LEDs located on the rear of each power supply, as shown below.
Icon Name
Fault
AC-Present
Status
DC Status
LED Function
Lights when the power supply encounters a fault.
Lights when AC power input is present and within acceptable
operating limits.
Lights when all DC outputs are functional and within
acceptable operating limits.
Appendix B System LEDs 265