Table 192 – Nortel Networks Circuit Card 311 User Manual
Page 488
488
NT7D16 Data Access card
Table 192
RS-232-C and RS-422 pinouts for first three DAC ports
I/O cable
RS-232-C
Pair
Pin
Pair
color
Unit no.
Signal
Pin no.
RS-422
Signal
Patch pair
or
octopus
1T
26
W-BL
UNIT 0
TD0
2
RDA0
1R
1
BL-W
RD0
3
RDB0
2T
27
W-O
DTR0
20
SDA0
2R
2
O-W
GND0
7
SDB0
Connector
3T
28
W-G
DCD0
8
1
3R
3
G-W
DSR0
6
4T
29
W-BR
RI0
22
4R
4
BR-W
CTS0
5
5T
20
W-S
UNIT 1
TD1
2
RDA1
5R
5
S-W
RD1
3
RDB1
6T
31
R-BL
DTR1
20
SDA1
6R
6
BL-R
GND1
7
SDB1
Connector
7T
32
R-O
DCD1
8
2
7R
7
O-R
DSR1
6
8T
33
R-G
RI1
22
8R
8
G-R
CTS1
5
9T
34
R-BR
UNIT 2
TD2
2
RDA2
9R
9
BR-R
RD2
3
RDB2
10T
35
R-S
DTR2
20
SDA2
10R
10
S-R
GND2
7
SDB2
Connector
11T
36
BK-BL
DCD2
8
3
11R
11
BL-BK
DSR2
6
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.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.