ProSoft Technology 5201-MNET-101S - Manual (Page 54)

Gateway Communication Ports IEC-101 Slave ♦ ProLinx Communication Gateway
Protocol Manual IEC 60870-5-101 v3 Slave (Firmware version 3.xx)
Page 54 of 159 ProSoft Technology, Inc.
August 6, 2010
3.3.3 RS-232: Null Modem Connection (No Hardware Handshaking)
This type of connection can be used to connect the gateway 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.