
Compact 1769-ASCII Module
13
Publication
1769-IN068B-EN-P - May 2005
Connect the D-sub Connector Pins
All pins are active at all times.
IMPORTANT
Pins unused for a particular physical network must not be
connected via the serial cable to any other device. In
particular, do not use cables 1747-CP3 and 1756-CP3.
Pin
RS-232
RS-422
RS-485
1
Do Not Connect
Transmit Data -
Transmit/Receive Data -
2
Receive Data
Do Not Connect
Do Not Connect
3
Transmit Data
Do Not Connect
Do Not Connect
4
Do Not Connect
Receive Data -
Do Not Connect
5
Common
Common
Common
6
Do Not Connect
Receive Data +
Do Not Connect
7
Request To Send
Request To Send
Request To Send
8
Clear To Send
Clear To Send
Clear To Send
9
Do Not Connect
Transmit Data +
Transmit/Receive Data +