Allen-Bradley 1203-GD2 User Manual page 30

Chapter 3
Installation
3-14
Figure 3.5
IBM PC Compatible Serial Connections
RS485/RS422/RS232 Communications Adapter to IBM AT
Compatible Computer RS232 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
Figure 3.6
PLC5 Channel 0 Serial Connections
Communications Module to PLC5 RS232
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
IBM AT Compatible
Personal Computer
Computer Internal
RS232 Serial Port
Jumper Connectors
5
COM
9
4
DTR
8
3
TX
7
2
RX
1
6
DCD
PLC5/20, 5/40, 5/60, 5/80
Channel 0
1
C.GND
14
N.C.
2
TXD
15
RES
3
RXD
16
N.C.
4
RTS
17
RES
5
CTS
18
RES
6
DER
19
N.C.
7
SG.GND
20
DTR
8
DCD
21
RES
RES
9
22
N.C.
10
N.C.
23
N.C.
11
RES
24
RES
12
RES
25
RES
13
N.C.
RI
CTS
RTS
DSR
AB0409D
AB0486B