ProSoft Technology RLX2-IFH9E - Manual (Page 46)

Installing the Radios RLX2-IFHxE ♦ Industrial Wireless
User Manual Industrial Frequency Hopping Ethernet Radios
Page 46 of 81 ProSoft Technology, Inc.
May 28, 2014
RS-232
When the RS-232 interface is selected, the use of hardware handshaking
(control and monitoring of modem signal lines) depends on the requirements of
the networked device. 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 radio and a modem or other
communication device.
The "Use CTS Line" parameter for the serial device should be set to 'Yes' for
most modem applications.