ProSoft Technology MVI56-PNPM User Manual page 68

MVI56-PNPM ♦ ControlLogix Platform
Phantom Network Protocol Master Communication Module
RS-232: Null Modem Connection (Hardware Handshaking)
This type of connection is used when the device connected to the module
requires hardware handshaking (control and monitoring of modem signal lines).
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: If the port is configured with the "Use CTS Line" set to 'Y', then a jumper is
required between the RTS and the CTS line on the module connection.
Page 68 of 91
Reference
ProSoft Technology, Inc.
January 2, 2008