Appendix A: Troubleshooting; Diagnosing Switch Indicators; Power And Cooling Problems; Installation - Enterasys Matrix-V V2H124-24FX Hardware Installation Manual

Appendix A: Troubleshooting

Diagnosing Switch Indicators

Symptom
PWR LED is Off
PWR LED is Amber
DIAG LED is Amber
Link LED is Off

Power and Cooling Problems

If the power indicator does not turn on when the power cord is plugged in, you may
have a problem with the power outlet, power cord, or internal power supply.
However, if the unit powers off after running for a while, check for loose power
connections, power losses or surges at the power outlet, and verify that the fans on
the unit are unobstructed and running prior to shutdown. If you still cannot isolate the
problem, the internal power supply may be defective.

Installation

Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (such as the power cord or network
cabling), test them in an alternate environment where you are sure that all the other
components are functioning properly.

Table A-1. Troubleshooting Chart

Action
• Internal power supply may be disconnected. Check connections
between the switch, the power cord, the wall outlet.
• Internal power supply has failed. Contact your local dealer for
assistance.
• Indicates the switch's self test has failed. Power cycle the switch to try
and clear the condition.
• If the condition does not clear, contact your local dealer for assistance.
• 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.
A-1