RS-422 Connections
In the RS-422 mode, TXD lines are outputs and RXD lines are inputs. Connect the TXDB(+) line to the RXDB(+) line of your device, and the TXDA(-) line to the RXDA(-) line of your device.
If Flow Control is set for RTS/CTS, connect the RTSB(+) line to the CTSB(+) line of your device and RTSA(-) to CTSA(-) of your device. Connect from CTSB(+) to RTSB(+) of your device and from CTSA(-) to RTSB(+) of your device.
If connecting to Receive Only RS-422 devices, connect from TXDB(+) and TXDA(-) to the receive pairs on all your devices.
Ground is signal ground and provides a common mode reference for the RS-422 Receiver and Transmitters.
The RS-422 mode can be used for full duplex 4-wire RS-485 operation provided that the DSE-410D is acting as a sole master connecting to all the slave devices, and all slave devices share the Receive signal lines to the master. Set Flow Control for none, and omit connections to RTS/CTS line pairs.
12 | DSE-410D Owner’s Manual – Document Number: 940-0186-100 |
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