Power And Cooling Problems; Installation - SMC Networks 6824MPE INT - annexe 1 Installation Manual

T
ROUBLESHOOTING
Symptom
Link/Act 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.
A-2
Table A-1 Troubleshooting Chart
Action
• 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.