Samsung SSA-P400/EXP, SSA-P400T/EXP manual RS-422 Communication Port Connection Multiple Units

COMMUNICATION LINE 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

Power

T+ T- R+ R-

RS-232C

HOST

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).

12_Installation and External Connection