Ibm Pc Compatible Serial Connections; 1747-Aic Link Coupler Serial Connections - Allen-Bradley Bulletin 1203 Series User Manual

2–14 Installation
1203–5.5 September 1995

IBM PC Compatible Serial Connections

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