Diagnostic led indicators – Transition Networks MIL-SM808GPXX User Manual
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Diagnostic LED Indicators
The switch can be easily monitored through panel indicators to assist in
identifying problems.
If the power indicator does turn on when the power cord is plugged in, you
may have a problem with power outlet or power cord. However, if the
switch powers off after running for awhile, check for loose power
connections, power losses or surges at power outlet. If you still cannot
resolve the problem, contact your local dealer for assistance.