User Manual

A-1
A PPENDIX A
T ROUBLESHOOTING
Diagnosing Switch Indicators
Table A-1 Troubleshooting Chart
Symptom Action
PWR LED is Off • Check connections between the switch, the power
cord, and the wall outlet.
• Contact SMC Technical Support.
PWR LED is Yellow • Internal power supply has failed. Contact your local
dealer for assistance.
Diag LED is Yellow • Power cycle the switch to try and clear the condition.
• If the condition does not clear, contact your local
dealer for assistance.
Link 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.