ProSoft Technology 5202-DFNT-DFCM4 - Manual (Page 24)

Communication Port Cables DFCM ♦ ProLinx Gateway
Driver Manual DF1 Master/Slave
Page 24 of 88 ProSoft Technology, Inc.
October 15, 2010
4.1.4 Port 0, 1, 2, 3: RS-422 Interface Connections
The following illustration applies when the RS-422 interface is selected.
4.1.5 Port 0, 1, 2, 3: RS-485 Interface Connections
The following illustration applies when the RS-485 interface is selected.
NOTE: This type of connection is commonly called a RS-485 half-duplex, 2-wire connection. If you
have RS-485 4-wire, full-duplex devices, they can be connected to the module's serial ports by
wiring together the TxD+ and RxD+ from the two pins of the full-duplex device to Pin 1 on the
module and wiring together the TxD- and RxD- from the two pins of the full-duplex device to Pin 8
on the module. As an alternative, you could try setting the module to use the RS-422 interface and
connect the full-duplex device according to the RS-422 wiring diagram (page 24). For additional
assistance, please contact ProSoft Technical Support.