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ProSoft Technology MVI69-GSC User Manual

Page 83

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MVI69-GSC ♦ CompactLogix or MicroLogix Platform

Reference

Generic ASCII Serial Communication Module

User Manual

ProSoft Technology, Inc.

Page 83 of 102

September 24, 2010

RS-232: Null Modem Connection (No Hardware Handshaking)
This type of connection can be used to connect the module to a computer or field

device communication port.

Note: For most null modem connections where hardware handshaking is not required, the Use
CTS Line parameter should be set to N

and no jumper will be required between Pins 7 (RTS) and 8

(CTS) on the connector. If the port is configured with the Use CTS Line set to Y, then a jumper is
required between the RTS and the CTS lines on the port connection.