Nortel 1000E Maintenance Manual page 74

Page 74 of 162 Clearing faults
Table 12
Call Server faults (Part 5 of 5)
Condition Possible cause
The following tests are performed on a live power connection.
All LEDs in
No power at outlet
the Call
Server are
off
Defective power
supply
Defective alarm/fan
module
Defective Call
Server
553-3041-500 Standard 1.00
WARNING
With a meter or test lamp, test for AC power at the
outlet.
If there is no power at the outlet when AC power is
supplied through a UPS unit, repair or replace the UPS
following the manufacturer's instructions.
If there is no power at the outlet when AC power is
supplied through commercial service (not through a
UPS), take the necessary steps to have the commercial
power restored.
If there is power at the outlet, go to the next possible
cause.
Set the power switch located on the back of the power
supply to OFF (down), wait at least 60 seconds, then set
the switch back to ON (up).
Ensure power supply is well-seated and the locking
screw is tightened.
If all LEDs are still off, or the power LED on the
alarm/fan module is red, replace the power supply.
If the Nortel Networks display remains lit and the alarm/
fan LEDs are all off, ensure that the alarm/fan module is
well-seated and the locking screw is tightened.
If it is still not operating properly, replace the alarm/fan
module.
If the power supply and alarm/fan module are replaced
and the symptoms persist, replace the Call Server.
September 2004
Action