1785-ke module – Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM User Manual
Page 344
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Publication AG-UM008C-EN-P - February 2005
A-6 Modem Cable Reference
1785-KE Module
Use Allen-Bradley cable A-B 1770-CP to connect a 1785-KE module to
a modem.
Figure A.5 1785-KE Module to Modem Cable Pin Assignment
COMM
CONTROL
DH+
DH+
RS-232
modem
1785-KE
15-pin male
25-pin
9-pin
C.GND
1
1
NC
TXD.OUT
2
2
3
RXD.IN
3
3
2
RTS.OUT
4
4
7
CTS.IN
5
5
8
DSR.IN
6
6
6
SIG.GND
7
7
5
DCD.IN
8
8
1
DTR.OUT
11
20
4
20
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