beautypg.com

Chapter - chapter 7, Title - troubleshooting, Head1 - chassis – Allied Telesis AT-PBC18 User Manual

Page 99: Chapter 7, Troubleshooting, Chassis, Refer to

background image

99

Chapter 7

Troubleshooting

Follow the guidelines in this section to test and troubleshoot the
installation in the event a problem occurs.

Chassis

Verify that the PWR1 main power supply and PWR2 optional power
supply LEDs are green. If one of the LEDs is OFF, do the following:

❑ Check to be sure that the power supply is securely connected to

the power outlet.

❑ Check to be sure that the power supply is securely seated in the

chassis.

❑ For a DC unit, check to be sure that the wires are connected to the

correct terminals.

❑ Check to be sure that the fans are operating. If a fan is not

operating, it is likely that a power supply has failed.