The LED alarm assembly is a high-level status indicator of the Controller and Controller components. Use these diagnostic LEDs to determine if a component has failed in the Controller. The LED alarm assembly also includes a power button to power on the Controller. Besides, the LED alarm assembly there is the Controller Identification Display (CID) that identifies the Controller by its numeric identifier.
Figure 1: LED alarm assembly front display
 
 | 1 Chassis identification LED or Locator LED | 5 Service processor LEDs | 
| 2 Service Action Required LED or Caution or Fault LED | 6 Back power supply LED | 
| 3 Motherboard or Power or OK LED | 7 Fault or Alarm LEDs (Critical, Major, Minor) | 
| 4 Power switch | 8 User Alarm LED | 
| No. | LED | LED color | Status | 
|---|---|---|---|
| 1 | Chassis identification LEDor Locator LED button | White | The Locator LED can be turned on to identify a particular system. When on, the LED blinks rapidly. Pressing and holding the Locator button for 5 seconds lights up all the LEDs that are controlled by ILOM for 15 seconds. | 
| 2 | Service Action Required LED | Amber | Indicates that service is required. Under some fault conditions, individual component fault LEDs are turned on in addition to the Service Required LED. | 
| 3 | Controller OK LED | Green | Indicates these conditions: 
 | 
| 5 | Service processor LED | Green | Indicates the state of the service processor: 
 | 
| 6 | Back power supply LED | Amber | Indicates the state of the power supplies: 
 | 
| 7 | Fault or Alarm LEDs (Critical, Major, Minor) | 
 | Note: The alarm indicators appear on the front panel of the Controller but are not applicable for the Oracle FS System. | 
| 8 | User Alarm LED | Amber | Indicates a user alarm condition. Note: The alarm indicators appear on the front panel of the Controller but are not applicable for the Oracle FS System. | 
Figure 2: Controller back LEDs

| 1 Power supply status LEDs | 3 Network management LED | 
| 2 Chassis Status LEDs | 4 Net0 to Net3 status LEDs | 
| No. | LED | LED color | Status | 
|---|---|---|---|
| 1 | Power supply status LEDs: | 
 | 
 | 
| 2 | Chassis Status LEDs | 
 | 
 | 
| 3 | Network management LED | 
 | Indicates these conditions: 
 | 
| 4 | Net0 to Net3 status LEDs | 
 | Indicates the state of the service processor: 
 |