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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1449TIE-TRK (Tie Trunk)
10
In G3iV1.1-286 or G3iV2-386, a tie trunk port can also be administered as an
access endpoint, which is a non-signaling channel with a voice-grade data
bandwidth.
Figure 10-91. Tie Trunk Interactions
The number of tests to be implemented for Tie Trunk maintenance depends upon
the TIE-TRK circuit packs involved. The test are as follows:
1. NPE Crosstalk Test—Verifies the switch connection operation of the circuit
pack. It verifies that the trunk circuitry talks only on the selected time slot
on the TDM Bus and that it never crosses over to time slots reserved for
other connections.
2. Loop Around and Conference Circuit Test—Verifies the transmission
operation of the circuit pack. It verifies that signals are transmitted to and
from each port (Loop Around within the port), and it tests the conference
capabilities of all ports.
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 trunk administration test field.
3. Several seizure tests, including the following:
— Tie Trunk Seizure Test (not relevant to the TN439 and TN497 circuit
packs)—Verifies the seizure capabilities of the circuit pack. For
wink start and delay dial outgoing trunks only, (and, for the TN2140
TIE
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PBX
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