Milan Technology MIL-SM4804G Switch User Manual


 
A-1
Appendix A: Troubleshooting
Diagnosing Switch Indicators
Diagnosing Power Problems with the LEDs
The Power and RPS LEDs work in combination to indicate power status as follows.
Table A-1 Troubleshooting Chart
Symptom Action
PWR LED is Off 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
Stack Master LED is Flashing
Amber
The stack has not completed its initial configuration. Wait a few
minutes for the process to complete.
If flashing continues, check that the Master Select button is pressed in
on only one switch.
Check that all stacking cables are properly connected.
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.
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.
Table A-2 Power/RPS LEDs
Power LED RPS LED Status
Green Amber Internal power functioning normally; RPS plugged in.
Green Off Internal power functioning normally; RPS not plugged in.
Amber Green Internal power faulty; RPS delivering power.
Off Off Both internal power and RPS unplugged or not functioning.