In order to communicate between various standard series ports of computers, external equipments, or intelligent instruments, we must convert these signals first. This converter is compatible with RS 232C and RS 485 standard.
It is able to convert RS-232 signal to RS-485 balanced differential signal and extend the communication distance to 1.2km. It is passive and doesn't require external power. It uses a particular pump to gain power from RS-232 signal (RTS, DTR, TXD) without initializing the RS-232 series interface.
The transmission rate of 300-115200 bps is capable of applying between host computers, host computer and its external equipment and forms point to point, point to multi-points network.