Diagnosing Power Problems With The Leds; Power And Cooling Problems; Installation; Table A-2 Power/Rps Leds - SMC Networks 8708L2 Installation Manual

T
ROUBLESHOOTING

Diagnosing Power Problems with the LEDs

The PWR and RPS LEDs work in combination to indicate power status as
follows.
PWR LED RPS LED
Green Yellow
Green Off
Yellow Green
Off 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, 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.
A-2

Table A-2 Power/RPS LEDs

Status
Internal power functioning normally; RPS plugged in but
faulty, such as a thermal or fan failure.
Internal power functioning normally; RPS not plugged in.
Internal power faulty; RPS delivering power.
Both internal power and RPS unplugged or not functioning.