Rockwell Automation 1203 Serial Communications Module Series B - Manual (Page 28)

2–14 Installation
1203–5.5 September 1995
IBM PC Compatible Serial Connections
Communications Module
9-Pin D-Shell
1
2
3
4
5
9
8
7
6
5
4
3
2
1
6
7
8
9
COM
N.C.
TX
N.C.
RX
N.C.
N.C.
N.C.
COM
COM
RI
DTR
CTS
TX
RTS
RX
DSR
DCD
IBM AT Compatible
Personal Computer
RS232 Serial Port
RS–485/RS–422/RS–232 Communications Adapter to IBM AT
Compatible Computer RS–232 Serial Port Connection Diagram
Computer Internal
Jumper Connectors
AB0409D
GND
1747–AIC Link Coupler Serial Connections
Communications Module
9-Pin D-Shell
1
2
3
4
5
9
8
7
6
COM
N.C.
N.C.
N.C.
SHIELD
N.C.
TRXD+
TRXD–
COM
Phoenix 6–Point Connector
1747–AIC Link Coupler
Serial Communications Module to 1747–AIC Link Coupler
PRT1, PRT2 DH–485 Mode Port Connection Diagram
TERM
A
B
COMMON
SHLD
CHS GND