Nortel Networks 311 User Manual
Connector pin assignments
777
Telephone trunks connect to the E and M Trunk card at the MDF using a
wiring plan similar to that used for line cards.
wiring plan similar to that used for line cards.
A typical connection example is shown in
. A list of the connections
to the E and M Trunk card in the various 2-wire modes is shown in
A list of the connections to the E and M Trunk card in the various 4-wire
modes is shown in
modes is shown in
.
See Communication Server 1000M and Meridian 1 Large System
Installation and Configuration (NN43021-310) for complete I/O connector
information and wire assignments for each tip/ring pair.
Installation and Configuration (NN43021-310) for complete I/O connector
information and wire assignments for each tip/ring pair.
Table 297
E and M Trunk card - backplane pinouts for 2-wire modes
E and M Trunk card - backplane pinouts for 2-wire modes
2-wire Paging Mode
2-wire Type I Mode
Trunk
Number
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
12B
Tip
12A
Ring
12B
Tip
12A
Ring
0
15B
A
15A
PG
14B
E
14A
M
16B
Tip
16A
Ring
16B
Tip
16A
Ring
1
19B
A
19A
PG
18B
E
18A
M
62B
Tip
62A
Ring
62B
Tip
62A
Ring
2
65B
A
65A
PG
64B
E
64A
M
66B
Tip
66A
Ring
66B
Tip
66A
Ring
3
69B
A
69A
PG
48B
E
68A
M
Table 298
E and M Trunk card - backplane pinouts for 4-wire modes
E and M Trunk card - backplane pinouts for 4-wire modes
4-wire Type I Mode
4-wire Type II Mode
Trunk
Number
Number
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
12B
TA
12A
TB
12B
TA
12A
TB
13B
RA
13A
RB
13B
RA
13A
RB
14B
E
14A
M
14B
EA
14A
EB
0
15B
ECG
15A
ESCG
15B
MA
15A
MB
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.