Avaya Definity SI Maintenance Manual page 1353

DIG-LINE (Digital Line)
e. Problems transmitting to the voice terminal. This problem can be caused
by defective wiring. Defective wiring can cause varying degrees of
problems on different types of sets. Sets such as the 7410 appear to be
more susceptible to wiring problems than other sets. This is usually an
on-board problem and can be ignored if no user complaints are received.
f. This is an in-line event that produces this error type when a favorable
response is received from running the Digital Line Electronic Power Feed
Test (#11). No craft action is necessary. This alarm will be resolved with the
passing of time.
g. With Aux Data 40963, this error type is a result of an unfavorable response
to the Electronic Power Feed/ Positive Temperature Coefficient Test (#11).
With Aux Data 40988, this error type indicates that the EPF/PTC circuit has
been turned off due to an overcurrent condition.
For TN754 vintage 13 or earlier and TN413, the EPF circuit senses an
overcurrent condition at the voice terminal. Check for a short in the wiring,
a damaged jack, an incorrect type of voice terminal, or a defective voice
terminal.
For TN754 vintage 14 or later, TN754B and TN2136, the PTC will open if
there is a short on the power line for 1/2 second or longer. The voice
terminal is probably not operating properly. Unplug the voice terminal for 30
seconds and then plug it back in. If the voice terminal still does not operate,
then check for a short in the wiring, a damaged jack, an incorrect type of
voice terminal, or a defective voice terminal.
Once the problem has been resolved, it may take up to 1 hour for the alarm
to clear due to "leaky bucket" strategy. If the problem cannot be resolved by
one of the steps above, then replace the circuit pack.
h. An in-line maintenance error has generated an off-board warning due to
some problem with the link to the voice terminal. This can be ignored if no
user complaints are received. Otherwise, make sure the voice terminal is
connected, check for defective wiring, check for a defective voice terminal,
and move voice terminal to a jack that is closer to the switch (in terms of
feet of wiring between the jack and the switch). If the problem still exists,
replace the circuit pack. Once the problem has been resolved, the alarm
will be retired after a predetermined amount of time.
i. This indicates that the station went off-hook while it was in the
ready-for-service state. Use the status station command to determine the
state of the station. The off-hook should have moved the station to
ready-for-service. No craft action is necessary.
j. Port Level Hyperactivity—Fifty or more CCMS uplilnk messages were
received from the port within ten seconds. The user is taken out of service
for a short interval of time (default 30 seconds).
k. No terminal is connected to the Digital Line board. No maintenance action
is required.
l. An uplink message has been logged indicating that the Electric Power
Feed (EPF) is on with no load on it. No action is necessary.
555-233-123 Issue 4 May 2002 10-567