Paradyne 7974 User Manual page 82

Monitoring and Troubleshooting
7-20
Table 7-6. Troubleshooting (2 of 2)
Symptom Possible Cause
H
Not receiving data. The network or data port
cables are not
connected (check front
panel LEDs for more
information).
H
A test is being executed
on the unit (check the
TEST LED on the front TEST LED on the front
panel).
H
The far-end unit is
offline.
H
The far-end unit is
running a test.
H
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.
August 2000
Solutions
H
Check network and data port
cables.
H
Run loopback tests. Refer to
Chapter 8, Testing.
H
Stop the test or wait for the test to
end.
H
Make sure the far-end device is
on.
H
Stop the far-end test.
H
Check the far-end Health and
Status messages.
H
Reset the unit and try again.
H
Contact your service
representative.
7900-A2-GB21-00