Operating instructions

PTQ-MCM ♦ Quantum / Unity Platform Setting Up the ProTalk Module
Modbus Communication Module
Page 50 of 139 ProSoft Technology, Inc.
April 29, 2008
RS-232
When the RS-232 interface is selected, the use of hardware handshaking
(control and monitoring of modem signal lines) is user definable. If no hardware
handshaking will be used, the cable to connect to the port is as shown below:
RS-232: Modem Connection
This type of connection is required between the module and a modem or other
communication device.
The "Use CTS Line" parameter for the port configuration should be set to 'Y' for
most modem applications.