installation and external connection
RS-422 Communication Port Connection (Multiple Units)
The RS-422/RS-232 converter is required to establish RS-422 communications.
RS-422/232
Converter
RxD
TxD 
RS-232C
Power 
MAX. 1200m
TX-
TX+
RX-
RX+
- Follow the guidelines below to make connection between devices.
1.Connect TX(-) of one device to TX(-) of other one.
2.Connect TX(+) of one device to TX(+) of other one.
3.Connect RX(-) of one device to RX(-) of other one.
4.Connect RX(+) of one device to RX(+) of other one
5.Set a unique board ID for each product.
-Follow the guidelines below to make connection between the terminal device and the RS-422 9-pin connector of the RS-422/RS-232 converter.
1.Connect RS-422 TX(-) to the RX(-) port of the converter.
2.Connect RS-422 TX(+) to the RX(+) port of the converter.
3.Connect RS-422 RX(-) to the TX(-) port of the converter.
4.Connect RS-422 RX(+) to the TX(+) port of the converter.
5.Connect the 9-pin connector of the RS-422/RS-232 converter to the COM port of the computer.
6.Install and launch the application (SAMS).
20_ installation and external connection
