SamIdea RS232 to RS485 Serial Communication Data Converter Adapter Mini-Size with a Terminal Board

* Interface female DB9 Pin RS-232 to male RS-485 connector, with connection board. * It is able to convert RS232 signal to RS485 balanced differential signal and extend the communication distance to 1.2km. * It is passive and doesn't require external power. * The Converter is widely used in industrial automation, door safe, all-in-one-card, car parking, ATM, bus charge, etc. FEATURES£º - Work environment: 0 to 7O degree centigrade (485-c) - Signals: RS-232: DCD(1), RXD(2),TXD(3),DTR(4), 5GND(5), DSR(6), RTS(7), CTS(8),RI(9) - Work environment:0 to 7O degree centigrade (485-C), relative humidity: 5 percent to 95 percent., Signals: RS-232: DCD(1), RXD(2), TXD(3), DTR(4), 5GND(5), DSR(6), RTS(7), CTS(8), RI(9)., DB9 Male connector: D-/B(1), D+/A(2), ---(3), ---(4), GND(5), + 5v~ + 12v(6), ---(7), ---(8), ---(9), RS-485 terminal board: D+/A(1), D-/B(2), GND(3), + 5v~ + 12v(4). Transmission distance: RS485 max. 1200m, RS232 side max. 5m. Package includes: 1x SamIdea RS232 to RS485 Passive Communication Data Converter Adapter