A-1
Appendix A: Troubleshooting
Diagnosing Switch Indicators
Table A-1 Troubleshooting Chart
Symptom Cause Action
Power indicator is
off
AC power is
disconnected or
internal power supply
may have failed
• Check AC connections between the switch, the
power cord, and the wall outlet.
• The internal power supply may have failed.
Contact your local dealer for assistance.
Power indicator is
on amber
The internal power
supply has a fault
• Contact your local dealer for assistance.
Diag indicator is on
amber
The system diagnostic
test has detected a
fault
• Try restarting the switch to clear the condition.
• If the condition persists, contact your local dealer
for assistance.
Link/Act port
indicator is off
There is no valid link
on the port
• Verify that the switch and attached device are
powered on.
• Be sure the cable is correctly 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 port on the attached device and cable
connections for possible defects. Replace the
defective device or cable if necessary.
Remote Error
indicator is on amber
The CPE media
converter’s fiber port is
disconnected
• Be sure the fiber cable is correctly connected to
the media converter device.
• Check the cable connections for possible defects.
Replace the defective device or cable if
necessary.
Remote Error
indicator is flashing
green
The CPE media
converter’s power is
off or has failed
• Check AC power adapter connections between
the CPE and the wall outlet.
• The AC power adapter may have failed. Replace
the power adapter.
• The CPE’s internal power supply may have failed.
Replace the defective CPE.
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