Allied Telesis AT-CV5001 - Manual (Page 77)

77
Chapter 4
Troubleshooting
This chapter contains information on how to troubleshoot the power supply
modules in the event a problem occurs.
Note
If after following the instructions in this chapter you are unable to
resolve the problem, contact Allied Telesis Technical Support for
assistance. Refer to “Contacting Allied Telesis” on page 14 for
contact information.
The operational status of a power supply module is displayed on the PS
and FAN LEDs on the AT-CV5LED Card installed in slot 19 on the front
panel. PS-A and FAN-A LEDs correspond to slot A on the back panel and
PS-B and FAN-B LEDs correspond to slot B. If a power supply is operating
normally, both the PS LED and the FAN LED will be on. If one or both of
them are off, try the following:
 Verify that the module is fully seated in the power supply slot in the
chassis.
 Verify that the power cord is firmly connected to the power supply
module and the power source.
 Try connecting the power module to another power source, preferably
located on a different circuit.
 Verify that the power source is operating properly by plugging a
different device into it.
 Verify that the power from the power source meets the operating
specifications of the power supply module, listed in “Power
Specifications” on page 79.
 Replace the power supply module.