... .6kbps3. Adopt DIP switch setup, random switch RS-485/RS-422 interface4. Automatic send data control, auto distinguish ... zero delay automatic transmitCommunication Standard Accord EIA RS232, RS-485, RS-422 standardRS-232 signalTX, RX, GNDRS-485 signalD+, ... protectionIsolation3000VConnectorRS-485 port 3 industrial terminal block, RS-422 port 5 industrial terminal blockEnvironment Working temperature-40 ...