Table of Contents
Advertisement
Diagnosing Switch Indicators
Symptom
Power LED is Off
Power LED is Flashing
Link LED is Off
T
ROUBLESHOOTING
Troubleshooting Chart
Action
•
Internal power supply has failed or is
disconnected.
•
Check connections between the switch, the
power cord, the wall outlet.
•
If the switch is installed in a rack, check the
connections to the punch-down block and patch
panel.
•
Contact SMC Technical Support.
•
The switch is either downloading firmware or
running the Power-On Self-Diagnostics Test
(POST). If this LED does not stop flashing, then
POST has failed, and you should contact SMC
Technical Support.
•
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.
A
PPENDIX
A
A-1
Advertisement
Table of Contents
