NEC NEAX2400 ICS, Руководство по программированию

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NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
Page 35
Automatic Trunk Test A-21
A-21 Automatic Trunk Test
General Description
The AUTOMATIC TRUNK TEST capability provides a functional test on a large number of trunks at a prearranged
time. The results of the test are reported at the MAINTENANCE ADMINISTRATION TERMINAL (MAT) [M-
18]. The test can include: Ringback Tone Test, 1 KHz Test Tone and Trunk Selection Test, by having the proper test
trunk termination at the distant office.
Operating Procedure
Input the route and trunk number to be tested by using the TTLC command
1. Input the TTLC and ATTD command.
2. The system will prompt for either Immediate or Scheduled Execution of this feature. If Scheduled
execution is chosen, the time when the test begins is entered via the MAT.
3. The system will ask for the route number to be tested as RT on CRT.
4. Input a route number from 1 - 255.
5. The system will ask for the trunk number(s) to be tested as TK on CRT.
6. Input the trunk number from 1 through 255. Input the trunk number(s) to be tested as the test goes from
TRK NUMBER to TRK NUMBER.
7. The system will execute the trunk test based on the data input above. Test results will be printed out after
all trunks have been tested.
Service Conditions
1. Additional hardware required consists of one LTST (PH-M16) card, one 8TLT card, and one line circuit
and LTST cable.
2. Trunks are tested in conjunction with the connecting office through the selected trunk, on a one-at-a-time
basis. The following different trunk functions can be tested on all trunks in a specified group:
a.) trunk selection,
b.) detection of ringback tone sent back from the connecting office after test number outpulsing,
c.) detection of test tone (1 kHz) returned from AUTOMATIC TRUNK TEST facility if provided at
the connecting office.
3. As part of the AUTOMATIC TRUNK TEST facility, an AUTOMATIC TRUNK TEST is provided at the
NEAX2400 IPX to answer incoming test calls. Upon terminating the incoming test call from the
originating office through a selected test trunk, the AUTOMATIC TRUNK TEST generates a 1 kHz tone
to the originating office as an acknowledgment signal.
4. If scheduled execution is chosen, the time when the test begins is entered via the MAT. The MAT is
dedicated to the AUTOMATIC TRUNK TEST function from the time the test is ordered until the
completion of the test.
Interactions
1. A four-wire TIE Line must be provided with the AUTOMATIC TRUNK TEST. See TIE LINE ACCESS
[T-3] for details of the required programming.
2. The test station must be located in the same LP as the PH-LTST circuit card.