Enhanced plc-5 – Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM User Manual
Page 340
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Publication AG-UM008C-EN-P - February 2005
A-2 Modem Cable Reference
Enhanced PLC-5
Figure A.1 Enhanced PLC-5 Processor to Modem Cable Pin Assignment
25-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
20
20
4
processor
modem
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