IBM 6C4 manual Unit, Blink, Function Color Power and Packaging LEDs, Electronics Component LEDs

Unit	LED	Location	LED	OFF	ON	Blink
(FRU)	Function		Color
		Power and Packaging LEDs
Rack	Drawer	Top of	Amber	Normal	Fault		Identify
	Sum		(1x)
Indicator		Rack
	AC Input		Green (1x)	No Input	AC Good		N/A
		Operator	Amber	Normal	Fault	Identify
	Attention	Panel +	(2x)
System		Rear
				No AC	System
Unit		Operator				v	Standby - slow
	Power	Panel +	Green (2x)		On	v	transition of power
		Rear
							on/off - fast
Fans	Identify	Fan Top	Amber	Normal	Fault	N/A
			(4x)
		Power	Green (1x)	No Input	AC Input	N/A
	Input	Supply			Good
	Source	Front +
		Top
Power	Fault	Power	Amber	Normal	N/A	Identify- Power
		Supply	(1x)			Control Comm. Failed
Supply
		Front +				.25 Hz
(AC)
		Top
		Power		DC Off	DC Good	Standby
	DC Output	Supply	Green (1x)
	Good	Front +
		Top
Disk	Activity	DASD	Green (4x)	No Activity	Activity	N/A
		Board
Drives
	Remove	DASD	Amber	Normal	Action	Identify
(DASD)
	Identify	Board	(4x)
Optional				No LED
Media
		Electronics Component LEDs
		Chassis	Green	Refer to the Following PCI Adapter Table
		Rear,
	Activity	Inside
		System
PCI		Next to
Adapter		Adapter
Connectors		Chassis
(Slots)		Rear,
	Identify	Inside	Amber	Refer to the Following PCI Adapter Table
		System
		Next to
		Adapter

12pSeries 630 Model 6C4 and Model 6E4 User's Guide