TP-Link TL-SL5428, Installation Manual

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A-1
A
PPENDIX
A
T
ROUBLESHOOTING
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.
Diag LED is Amber • Power cycle the switch to try and clear the condition
• If the condition does not clear, contact your dealer for
assistance
Link/ACT 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.
• If the switch is installed in a rack, check the connections to the
punch-down block and patch panel.
• 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.