User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si 
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures 
Page 10-1458TIE-TRK (Tie Trunk) 
10
Loop Around and Conference Circuit Test (#33)
This test checks the reflective loop around, and conference capabilities of a tie 
trunk port circuit. The test uses 404-Hz, 1004-Hz, and 2804-Hz tones. This is an 
on-board test only, and each tone is transmitted through the loop and checked 
upon return.
This test may fail due to noise induced by adjacent electric power lines. 
Customers having this problem should resolve it with their local power company. 
To temporarily alleviate the alarm caused by the failure of this test, the test may 
be disabled from the trunk administration Test field.
PASS The port is correctly using its allocated time slots. 
User-reported troubles on this port should be 
investigated using other port tests and examining 
station, trunk or external wiring.
0NO 
BOARD
The test could not relate the internal ID to the port (no 
board).
1. Check to ensure that the board translations are 
correct. Translate the board, if necessary.
2. Issue the busyout board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board command. This should 
re-establish the linkage between the internal ID and 
the port.
Table 10-442. TEST #6 NPE Crosstalk Test — Continued
Error 
Code
Test 
Result Description/ Recommendation
Continued on next page










