Troubleshooting - Paradyne Hotwire 8774 User Manual

Tdm sdsl termination unit with dsx-1 interface
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Troubleshooting

The unit is designed to provide many years of trouble-free service. However, if a
problem occurs, refer to
Table 6-2.
8774-A2-GB20-40
Table 6-2,
Troubleshooting
Symptom
Possible Cause
Alarm LED is on.
A system failure has
occurred.
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 unit is not properly
are not lit.
seated in the DSLAM.
There is no power to the
DSLAM.
An LED is not lit.
LED is out.
Not receiving data.
The network or DSX-1 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 device is offline.
Power-On Self-Test
The unit has detected an
fails. Only Alarm LED
internal hardware failure.
is on after power-on.
February 2001
6. Messages and Troubleshooting
Troubleshooting, for possible solutions.
Solutions
Refer to
Status Messages,
Monitoring the Unit , for the
recommended action.
T
Check the cable and
connections.
T
Ensure that the unit is
configured properly in the
DSLAM. Verify its IP
address.
T
Reset the unit.
T
Reset the unit.
T
Contact your service
representative.
Verify that the unit is properly
inserted.
Verify that the DSLAM has
power.
Run the Lamp Test. If the LED
in question does not flash with
the other LEDs, then contact
your service representative.
T
Check network and DSX-1
port cables.
T
Check Health and Status
menu.
T
Run Loopback tests. Refer to
Chapter 5, Testing
Stop the test or wait for the test
to end.
Make sure the far-end device
is on.
T
Reset the unit and try again.
T
Contact your service
representative.
Table 4-1, Health and
in Chapter 4,
.
6-5

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