RS232 to 485 Passive Interface Converter; RS232 to 485 converter (4-pin)

Concurrently compatible with RS-232C, RS-485 standard of EIA/TIA- Interface RS232 side: DB9 female connector- Interface RS485 side: DB9 male connector with optional terminal board (included)- Work Methods: Asynchronous, half duplex- Transmission media: Common wire, double wire or shielding line- Transmission speed: 300~115200Bps- Transmission distance: RS485 max.1200m, RS232 side max. 5m- Transfer the TXD and RXD signals of RS232 serial port to parallel half duplex RS485 signal