SMC Networks 10G - Manual (Page 56)

T
ROUBLESHOOTING
A-2
Diagnosing Power Problems with the LEDs
The PWR and RPS LEDs work in combination to indicate power status as
follows.
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, then 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-2 Power/RPS LEDs
PWR LED RPS LED Status
Green Yellow Internal power functioning normally; RPS plugged in but
faulty, such as a thermal or fan failure.
Green Off Internal power functioning normally; RPS not plugged in.
Yellow Green Internal power faulty; RPS delivering power.
Off Off Both internal power and RPS unplugged or not functioning.