Transition Networks SM24-100SFP-AH manual Appendix a Troubleshooting, Diagnosing Switch Indicators

Appendix A: Troubleshooting

Diagnosing Switch Indicators

	Table A-1. Troubleshooting Chart
Symptom	Action
Pwr LED is Off	• Power supply is disconnected.
	• Check connections between the switch, the power cord, and the wall
	outlet.
	• Contact your dealer for assistance.
Pwr LED is Amber	• Internal power supply has failed. Contact your local dealer for assistance.
OK LED is Amber	• Power cycle the switch to try and clear the condition.
	• If the condition does not clear, contact your dealer for assistance.
Port 1-28 LED is Off	• Verify that the switch and attached device are powered on.
	• Be sure the cable is plugged into both the switch and corresponding
	device.
	• Verify that the proper cable type is used and its length does not exceed
	specified limits.
	• Check the adapter on the attached device and cable connections for
	possible defects. Replace the defective adapter or cable if necessary.

Diagnosing Power Problems with the LEDs

The Pwr and BPS LEDs work in combination to indicate power status as follows.

		Table A-2. Pwr/BPS LEDs
Pwr LED	BPS LED		Status
Green	Yellow		Internal power functioning normally; BPS plugged in
			but faulty, such as a thermal or fan failure.
Green	Off		Internal power functioning normally; BPS not
			plugged in.
Yellow	Green		Internal power faulty; BPS delivering power.
Off	Off		Both internal power and BPS unplugged or not
			functioning.

A-1