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A-1
Appendix A: Troubleshooting
Diagnosing Switch Indicators
Diagnosing Power Problems with the LEDs
The Pwr and BPS LEDs work in combination to indicate power status as follows.
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.
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.