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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
CONNECTION [T-10]
3.
The 4W E&M Trunk/DTI [D-16] provides PAD CONTROL (0,2,4,8,12,16dB) so that 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 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.
NEAX2400 ICS Business Features and Specifications
NDA-24143, Issue 4
TIE Line Connection With Pad Control
CALLING
[T-2]
used
in
conjunction
with
T-5
TRUNK-TO-TRUNK
Page 513
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