Paradyne 7974 User Manual page 83

Table 7-6.
7900-A2-GB21-20
Troubleshooting (2 of 2)
Symptom Possible Cause
Not receiving data. The network or data port
cables are not connected
(check front panel LEDs for
more information).
A test is being executed on
the unit (check the TEST
LED on the front panel).
The far-end unit is offline.
The far-end unit is running
a test.
An alarm condition exists in
the far-end unit.
Power-On Self-Test The unit has detected an
fails. Only POWER internal hardware failure.
and ALARM LEDs are
on after power-on.
December 2001
7. Monitoring and Troubleshooting
Solutions
T
Check network and data port
cables.
T
Run loopback tests. Refer to
Chapter 8, Testing .
Stop the test or wait for the test
to end.
Make sure the far-end device is
on.
Stop the far-end test.
Check the far-end Health and
Status messages.
T
Reset the unit and try again.
T
Contact your service
representative.
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