Model232I is a kind of RS232 system communication serial port optical isolation product. Supports transmission rate up to 912600bps, no external power required, 2500V electrical isolation, it is applicable in a harsh environment. According to different customer needs, it separately corresponds to the three-line serial port application with RTS/CTS (or DTR/CTS). The transmission distance at 9,600bps is 10m, and it has very stable performance.