Troubleshooting - Paradyne 7974 User Manual

7. Monitoring and Troubleshooting

Troubleshooting

The unit is designed to provide many years of trouble-free service. If a problem
occurs, however, refer to
Table 7-6.
7-22
Table 7-6,
Troubleshooting (1 of 2)
Symptom Possible Cause
ALARM LED is on. One of several alarm
conditions exists. Health and
Status displays the alarm
condition.
An LED is not lit that LED is burned out.
should be lit.
Cannot access the unit The terminal is not set up for
via the ATI. the correct rate or data
format, or the unit is
configured so it prevents
access.
The unit detects an internal
Device Fail
appears on the System hardware failure.
and Test Status screen
under Self-Test results.
No power, or the LEDs The power cord is not
are not lit. securely plugged into the wall
receptacle or into the rear
panel connection.
The wall receptacle has no
power.
Power supply has failed.
December 2001
Troubleshooting, for possible solutions.
Solutions
Refer to Table 7-1, Health and
Status Messages, for a
recommended action.
T
Use Table 7-5, Front Panel
LEDs, to determine the
correct behavior of the LEDs.
T
Run the Lamp test. If the
LED in question does not
flash with the other LEDs,
then contact your service
representative.
T
Check the cable and
connections.
T
Ensure the unit is configured
properly. Verify IP address
and communication port
usage.
T
Reset the unit.
T
Reset the unit.
T
Contact your service
representative.
Check that the power cord is
securely attached at both ends.
T
Check the wall receptacle
power by plugging in some
equipment that is known to
be working.
T
Check the power switch on
the unit's rear panel.
T
Check the circuit breaker.
T
Verify that your site is not on
an energy management
program.
Replace power supply.
7900-A2-GB21-20