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Monitoring and Troubleshooting
7-21
8700-A2-GB20-00
April 2000
Troubleshooting
The Hotwire Termination Unit is designed to provide you with many years of
trouble-free service. If a problem occurs, however, refer to Table 7-6 for possible
solutions. If an error message is displayed under Health and Status on the
System and Test Status screen, refer to Table 7-1, Health and Status Messages,
for recommended action.
Table 7-6. Troubleshooting (1 of 2)
Symptom
Possible Cause Solutions
Alarm LED is on. A system failure has
occurred.
Refer to Table 7-1, Health and
Status Messages, for
recommended action.
Cannot access the
unit via the ATI.
The terminal is not set up
for the correct rate or data
format, or the unit is
configured so it prevents
access.
H Check the cable and
connections.
H Ensure that the unit is configured
properly in the DSLAM. Verify its
IP address.
H Reset the unit.
Device Fail appears
on the System and
Test Status screen
under Self-Test
results.
The unit detects an internal
hardware failure.
H Reset the unit.
H Contact your service
representative.
Power-On Self-Test
fails. Only Alarm
LED is on after
power-on.
The unit has detected an
internal hardware failure.
No power, or the
LEDs are not lit.
The unit is not properly
seated in the DSLAM.
Verify that the unit is properly
inserted.
There is no power to the
DSLAM.
Verify that the DSLAM has power.
An LED is not lit. LED is out. Run the Lamp Test. If the LED in
question does not flash with the
other LEDs, then contact your
service representative.
Not receiving data. H The network or DTE port
cables are not
connected (check front
panel LEDs for more
information).
H A test is being executed
H Check network and DTE port
cables.
H Check Health and Status menu.
H Run Loopback tests. Refer to
Cha
p
ter 8, Testing.
H
A
test
i
s
b
e
i
ng execute
d
on the unit (check the
TEST LED on the front
panel).
H The far-end device is
offline.
Chapter
8
,
Testing
.
H Stop the test or wait for the test
to end.
H Make sure the far-end device is
on.