Sun Microsystems Enterprise 250 Owner's Manual page 263

Power Supply LEDs
Power supply LEDs are visible from the rear of the system. The following figure
shows the LEDs on the power supply in bay 0.
The following table provides a description of each LED.
LED Name Icon
AC-Present-Status
DC Status
Description
This green LED is lit to indicate that the
primary circuit has power. When this LED
is lit, the power supply is providing
standby power to the system.
This green LED is lit to indicate that all
DC outputs from the power supply are
functional.
Chapter 11 Diagnostics and Troubleshooting 245