Nortel Networks Circuit Card User Manual
Page 515
NT7D16 Data Access card
Page 515 of 906
Circuit Card
Description and Installation
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
12T
37
BK-O
RI2
22
12R
12
O-BK
CTS2
5
Table 170
RS-232-C and RS-422 pinouts for first three DAC ports (Part 2 of 2)
I/O cable
Unit no.
RS-232-C
RS-422
Signal
Patch pair or
octopus
Pair
Pin
Pair
color
Signal
Pin no.
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.