Standard: EIA RS-232C, RS-485, RS-422 Quantity of serial port: 8 RS-485/422, 3IN1 serial port or RS-232 RS-232 signal: DSR, RTS, GND, TXD, RXD, DCD, CTS, DTR RS-485 signal: D+, D-, GND RS-422 signal: T+, T-, GND, R+, R- Baud rate: 300-115200bps Data bit: 5bit, 6bit, 7bit, 8bit Parity bit: None, Even, Odd, Space, Mark Stop bit: 1bit, 2bit Interface form: RS-485/422 serial port with isolation, adopt 5 pins 5.08mm pitch terminal blocks 3IN1 serial port, adopt RJ45 RS-232, adopt RJ45 Flow control: RTS/CTS, DTR/DSR, XON/XOFF Direction control: RS-485 direction adopts data flow automatic control technology Load capacity: RS-485/422 end supports 32 points polling (customizable 128 points) Pull high/low resistor for RS-485: 4.7kΩ Electromagnetic isolation strength: RS-485/422 serial port (terminal block), 3KVDC/2KVrms |