Port 0, 1, 2, 3: rs-422 interface connections, Port 0, 1, 2, 3: rs-485 interface connections – ProSoft Technology 5201-DFNT-DNPM User Manual
Page 29
Communication Port Cables
DNPM ♦ ProLinx Gateway
Driver Manual
DNP 3.0 Master
ProSoft Technology, Inc.
Page 29 of 56
September 30, 2009
4.6
Port 0, 1, 2, 3: RS-422 Interface Connections
The following illustration applies when the RS-422 interface is selected.
4.7
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
and connect the full-duplex device according to the RS-422 wiring diagram (page 29). For
additional assistance, please contact ProSoft Technical Support.