beautypg.com

Chapter 3, Troubleshooting, R 3: troubleshooting – Allied Telesis AT-MCR12 User Manual

Page 47

background image

47

Chapter 3

Troubleshooting

Follow the guidelines below to test and troubleshoot the installation of the
AT-MCR12 chassis in the event that a problem occurs.

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

ˆ

Check to be sure that the power supply is securely connected to the
power outlet.

ˆ

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

ˆ

For a DC unit, check to be sure that the wires are connected to the
correct terminals.

If AT-MCR12 chassis is not operating correctly after testing and
troubleshooting the installation, refer to “Contacting Allied Telesis” on
page 14 or visit our web site at www.alliedtelesis.com for support
information.

See also other documents in the category Allied Telesis Computer hardware: