Nortel Circuit Card 311 Reference page 489

I/O cable
Pair Pin
12T 37
12
12R
Note 1: The RS-232 pinout follows the standard set by the QPC723 RILC.
Note 2: The RS-422 pinout follows the standard set by the QPC430 AILC (first pair: Receive Data;
second pair: Send Data). Receive and Send are designated with reference to the DTE; therefore,
they must be turned over in the cross-connect since most DTE have first pair as Send Data and
second pair as Receive Data.
Table 193
RS-232-C and RS-422 pinouts for last three DAC ports
I/O cable
Pair Pin
38
13T
13R 13
14T 39 BK-BR
14
14R BR-BK
15T 40
15R 15
41
16T
16R 16
17T 42
17
17R
18T 43
18R 18
44
19T
19
19R
20T 45
20
20R
46
21T
21R 21
Note: Units 4 and 5 are available when the DAC is installed in a fully wired 24-pair slot.
Copyright © 2003-2008, Nortel Networks
.
Pair
color Unit no.
BK-O
O-BK
Pair
color Unit no.
BK-G UNIT 3
G-BK
BK-S
S-BK
Y-BL
BL-Y
Y-O UNIT 4
O-Y (Note)
Y-G
G-Y
Y-BR
BR-Y
Y-S
S-Y
V-BL UNIT 5
BL-V (Note)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Backplane pinout and signaling 489
RS-232-C
Signal Pin no.
RI2 22
5
CTS2
RS-232-C
Signal Pin no.
2
TD3
RD3 3
DTR3 20
7
GND3
DCD3 8
DSR3 6
22
RI3
5
CTS3
TD4 2
3
RD4
DTR4 20
7
GND4
8
DCD4
6
DSR4
RI4 22
5
CTS4
2
TD5
RD5 3
Patch pair
RS-422 or
Signal octopus
RS-422 Patch pair or
Signal octopus
RDA3
RDB3
SDA3
SDB3 Connector
1
RDA4
RDB4
SDA4
SDB4 Connector
2
RDA5
RDB5