6
Troubleshooting Power and COM Port Connections
Symptom
Possible Cause
Solutions
No power, or none
of the system LEDs
are lit.
Power cord is not
securely plugged into the
wall power outlet or the
universal power supply.
Check that the power cord is
securely attached at both ends.
Wall receptacle has no
power.
1. Check the wall receptacle power
by plugging in some equipment
that is known to be working.
2. Check the circuit breaker.
Power supply is
defective.
Contact your sales or service
representative for replacement of
the power supply.
An LED is not lit.
LED is burned out.
Run the Lamp Test. If the LED in
question does not flash with the
other LEDs, contact your sales or
service representative.
Power-Up Self-Test
fails. The Alarm
LED is on after
power-up, but the
OK LED is not.
The FrameSaver NNI
unit has detected an
internal hardware failure.
1. Reset the FrameSaver NNI unit
and try again.
2. Contact your service
representative.
Cannot access the
FrameSaver NNI
unit or the user
interface.
Login or password is
incorrect, COM port is
misconfigured, or access
to the FrameSaver NNI
unit is misconfigured.
1. Reset the FrameSaver NNI unit
(see Chapter 12,
Operation and
Maintenance, of the User’s
Guide).
2. Contact your service
representative.
