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NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
Page 743
TIE Line Connection With Pad Control T-5
T-5 TIE Line Connection With Pad Control
General Description
This feature provides a switchable transmission pad on TIE trunks that allows tandem connections. Necessary pad
control is activated to protect against echo.
Operating Procedure
No manual operation is required.
Service Conditions
1. Pad Control (2dB) will automatically be switched in for the following connections:
a.) TIE Line-to-Station
b.) Station-to-TIE Trunk/CCSA
c.) CCSA-to-Station
d.) TIE Line-to-Attendant
e.) CCSA-to-Attendant
f.) Attendant-to-TIE Trunk/CCSA
2. Pad Control (2dB) will not be switched in for the following connections:
a.) TIE Line-to-C.O.Trunk/TIE/CCSA
b.) CCSA-to-C.O.Trunk/TIE/CCSA
c.) C.O.Trunk-to-TIE/CCSA
d.) THREE-WAY CALLING [T-2] used in conjunction with TRUNK-TO-TRUNK CONNECTION
[T-10]
3. The 4W E&M Trunk/DTI [D-16] provides Pad Control (0, 2, 4, 8, 12, 16dB) so the desired transmitting
and receiving levels can be maintained, providing the overall tandem system with transparency.
Interactions
1. If volume on the DTI is too loud, assign CDN 30:Pad (ARTD) as data “2”.
2. The 8TLT card provides four 2-wire DID, CCSA, and TIE Line circuit access. These circuits may be set
for loop or E&M signaling. The card contains switchable transmission pads that are switched in or out via
software command.
3. The 8TLT card provides four 4-wire TIE Line circuits. These circuits may be set for E&M signaling. The
card contains switchable transmission pads that are switched in or out via software. The 8TLT cards are
located in the Port Interface Module (PIM) carrier. A maximum of eleven 8TLT can be equipped per PIM.
Programming
STEP 1: ARTD - Assign the TIE Line routes as shown below:
BOTHWAY LINES:
RT: 1
1-OSGS :2 2-ONSG :3 3-ISGS :2 4-INSG :3 5-TF :3
6-TCL :4 7-L/T :1 8-RLP :2 15-LSG :5
Pad control is programmed in CDN 30:Pad. For DTI circuit cards, assign data “7”, otherwise assign
data “0”.
STEP 2: APAD - Assign the Pad data required for the Tandem connection. Assign the following:
KIND: Kind of Connection