Maintenance-Object Repair Procedures
555-233-143
8-558 Issue 1 May 2002
Digital Station Audits Test (#17)
This is a series of six tests that are classified as audits. The media server sends
messages to the on-board microprocessor to perform the following tests. These
audits run only if the station is in-service.
■ Switchhook Inquiry test — This is an update of the media server’s records
according to the circuit pack’s records. This inquiry is sent all the way to
the voice terminal.
■ Bad Scan Inquiry test — An up-link message is sent containing a count
generated by certain events relating to the link’s conditions. This can be an
indication of communications problems between the media server and
Digital Port circuit pack.
■ EPF/PTC Inquiry test — For a TN413 or a TN754 (vintage 13 or earlier),
an up-link status message of the Electronic Power Feed (EPF) is sent.
Possible conditions are: EPF-on-ok, EPF-off, and EPF-no-load.
For TN754 (vintage 14 or later), TN754B, TN2136, TN2181, or TN2224, an
up-link status of the PTC is sent. Possible conditions are: PTC-on-ok,
PTC-off, and PTC-no- load.
■ ID Request test—A request is made to the station for its status. The
station sends its configuration information and health information back.
This information is checked and a pass/fail result is provided.
1392 ABORT This port is currently a TTI port and the test will not execute on it.
1. Verify that the port is a TTI port using either the display port command
(the display shows that the port is a TTI port) or the list config
command (the display shows a “t” for the port).
2. If either list config or display port indicates that the port is not a TTI
port, escalate the problem. If both commands indicate that the port is a
TTI port, the abort is correct, and no action is necessary.
FAIL Internal system error
1. Retry the command at 1-minute intervals up to 5 times.
PASS The message to light every station lamp was sent successfully to the port.
1. Observe the station lamps being lit when running the test. If all lamps
do not light, the other Digital Line test results may indicate related
problems that do not allow the lamps to light.
2. Investigate by using other Digital Line port tests, and by examining the
station, wiring, and connections.
Table 8-224. Test #16 DIG-LINE Station Lamp Updates Test — Continued
Error
Code Test Result Description / Recommendation
Continued on next page
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