Sun Microsystems 220R manual System LED Indicators, Power-on/ Activity General fault

System LED Indicators

The two system LEDs consist of a system health indicator and a fault indicator. The system health indicator lights continuously green to show that the system is functioning normally. The fault indicator lights when a problem is detected in the system. Because it is important to know that a fault exists in the system, the fault indicator remains lit whether the system is in normal operating mode, or is switched to Standby mode using the keyswitch.

When you first power on the system, the LEDs are individually toggled on and off to verify that each one is working correctly. After that, the LEDs operate as described in the following table.

Name Icon Description

Power-on/ Activity

General fault

This green LED lights continuously when the system power is on.

This amber LED lights steadily when a system fault is detected (including a fault reported by a power supply LED fault).

Chapter 1 System Overview 9