Nortel Networks Circuit Card 311 User Manual
Page 557
Connector pin assignments
557
Telephone lines from station equipment cross connect to the analog
message waiting line card at the MDF using a wiring plan similar to
that used for trunk cards. A typical connection example is shown in
Figure 137 "Analog message waiting line card - typical cross connection
example" (page 559)
and
Table 132 "CLASS modem card - environmental
shows the I/O pin designations at the backplane
connector. This connector is arranged as an 80-row by 2-column array of
pins. Normally, these pin positions are cabled to 50-pin connectors at the
I/O panel in the rear of each module for connection with 25-pair cables to
the cross-connect terminal.
The information in
Table 225 "Analog message waiting line card - backplane
is provided as a reference and diagnostic aid at the
backplane, since the cabling arrangement may vary at the I/O panel. See
Communication Server 1000M and Meridian 1 Large System Installation and
Configuration (NN43021-310) for cable pinout information at the I/O panel.
Table 225
Analog message waiting line card - backplane pinouts
Backplane
pinout*
Lead
designations
Backplane
pinout*
Lead
designations
12A
Line 0, Ring
12B
Line 0, Tip
13A
Line 1, Ring
13B
Line 1, Tip
14A
Line 2, Ring
14B
Line 2, Tip
15A
Line 3, Ring
15B
Line 3, Tip
16A
Line 4, Ring
16B
Line 4, Tip
17A
Line 5, Ring
17B
Line 5, Tip
18A
Line 6, Ring
18B
Line 6, Tip
19A
Line 7, Ring
18B
Line 7, Tip
62A
Line 8, Ring
62B
Line 8, Tip
63A
Line 9, Ring
63B
Line 9, Tip
64A
Line 10, Ring
64B
Line 10, Tip
65A
Line 11, Ring
65B
Line 11, Tip
66A
Line 12, Ring
66B
Line 12, Tip
67A
Line 13, Ring
67B
Line 13, Tip
68A
Line 14, Ring
68B
Line 14, Tip
69A
Line 15, Ring
69B
Line 15, Tip
* These pinouts apply to both NT8D37 and NT8D11 backplanes.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.