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The backplane connector is arranged as an 80-row by 2-column array of
pins.
I/O pin designations for the backplane connector and the 25-pair Amphenol
connector from the I/O panel. Although the connections from the I/O panel
only use 14 of the available 50-pins, the remaining pins are reserved and
cannot be used for other signaling transmissions.
The information in
207)
the cabling arrangement can vary at the I/O panel. See Communication
Server 1000M and Meridian 1 Large System Installation and Configuration
(NN43021-310) for cable pinout information for the I/O panel.
Table 97
Lineside T1 card - backplane pinouts
Connector Pin
Copyright © 2003-2008, Nortel Networks
.
Table 97 "Lineside T1 card - backplane pinouts" (page 207)
Table 97 "Lineside T1 card - backplane pinouts" (page
is provided as a reference and diagnostic aid at the backplane, since
Backplane
I/O Panel
Connector Pin
12A
12B
13A
13B
14A
14B
15A
15B
16A
16B
17A
17B
18A
18B
19A
19B
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Installation and configuration 207
—End—
1
T1 Tip, Receive Data
26
T1 Ring, Receive Data
2
T1 Tip, Transmit Data
27
T1 Ring, Transmit Data
3
Alarm out, Normally open
28
Alarm out, Common
4
Alarm out, Normally closed
29
5
30
Away from MMI terminal, Receive Data
6
Away from MMI terminal, Transmit Data
31
Towards MMI terminal, Transmit Data
7
Towards MMI terminal, Receive Data
32
Daisy-chain Control 2
8
Daisy-chain Control 1
33
shows the
Signal
No Connection
No Connection
Ground
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