HP 6400CL Diagnosing with the LEDs, Table 4-1.LED Error Indicators, 1.Check in the table for the LED pattern you see on your switch

Troubleshooting

Diagnosing with the LEDs

Diagnosing with the LEDs

Table 4-1 shows LED patterns on the switch and the switch modules that indicate problem conditions.

1.Check in the table for the LED pattern you see on your switch.2.Refer to the corresponding diagnostic tip on the next few pages.Table 4-1. LED Error Indicators

		LED Pattern Indicating Problems
		Module	RPS		Fan	Port LED	Diagnostic
Power	Fault	(Mdl)	Status	Test	Status	(Link)	Tips
		Status/
		Fault**
Off with	*	*	*	*	*	*	➊
power cord
plugged in
On	Prolonged On	*	*	Prolonged On	*	*	➋
On	Blinking†	*	*	Blinking†	*	*	➌
On	Blinking†	*	*	Off	Blinking†	*	➍
On	Blinking†	See tip 5	*	Blinking†	*	Blinking†	➎
On	Off	*	*	Off	*	Off with cable	➏
						connected
On	Off	*	*	Off	*	On, but the port is not	➐
						communicating
On	Blinking†	*	On	*	*	*	➑
On	Blinking†	F1 Blinking†	*	Blinking†	*	*	➒
		B2 Blinking†
* This LED is not important for the diagnosis.								Troubleshooting
† The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
** The Module Fault LED is located on the module in the rear of the switch.
1 F - Front
2 B - Back

4-3