Applications, Paging trunk operation – Nortel Networks 1000 User Manual
Page 627
Applications
627
•
TRC for a 2-wire non-VNL trunk facility with a loss of greater than 2
dB, or for which impedance compensation is provided, or for a 4-wire
non-VNL facility.
•
NTC for a 2-wire, non-VNL trunk facility with a loss of less than 2 dB,
or when impedance compensation is not provided.
See
Table 238 "Pad switching algorithm" (page 625)
for the pad switching
control for the various through connections and the actual port-to-port loss
introduced for connections between the NT8D14 Universal Trunk Card and
any other port designated as Port B.
Table 239
Pad switching algorithm
Port B pads
Universal Trunk
Pads
Port-to-port loss (dB)
Port B
Transmit
D to A
Receive
A to D
Transmit
D to A
Receive
A to D
Port B to
Universal
trunk
card
Universal
trunk
card
to Port B
IPE line
N/A
N/A
Out
Out
0.5
0.5
Universal trunk (TRC)
In
Out
In
Out
1
1
IPE tie (VNL)
In
In
Out
Out
0
0
PE line
N/A
N/A
Out
Out
1
1
PE CO/FX/WATS
(TRC)
Out
Out
In
In
1
1
PE tie
Out
Out
In
In
0.5
0.5
Note 1: Transmit and receive designations are from and to the CS 1000. Transmit is from the CS
1000 to the external facility (digital-to-analog direction in the Universal trunk card). Receive is to the
CS 1000 from the external facility (analog-to-digital direction in the Universal trunk card.
Note 2: When Port B is the call originating port and if the Universal trunk card is the originating port,
the UTC pads are out and the Port B (PE CO/FX/WATS) pads are in.
Applications
The optional applications, features, and signaling arrangements for each
trunk are assigned through unique route and trunk data blocks.
The optional applications, features, and signaling arrangements for each
trunk are assigned through unique route and trunk data blocks.
Paging trunk operation
A universal trunk card unit can be configured as a paging trunk. Configure
units as paging trunks in the Trunk Data Block program LD 14 and assign
routes in the Route Data Block program LD 16.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.