RS232 to RS485/RS422 ISO interface converter

WM-603-B industrial-grade photoelectric isolation and lightning protection interface converter is compatible with RS-232C, RS-422, and RS-485 standards and can convert single-ended RS-232 signals into balanced differential RS-422 or RS-485 signals. Built-in photoelectric isolator, providing 2500Vrms isolation voltage; equipped with fast transient voltage suppression protector, which can effectively protect the RS-422/RS-485 interface in real time.

At the same time, it can effectively suppress lightning (LIGHTNING) and ESD, providing 600W lightning surge protection power per line, as well as surge voltage and transient overvoltage generated on the line due to various reasons, and the extremely small inter-electrode capacitance ensures RS -High-speed transmission via 422/RS-485 interface.

The RS-232 interface is connected to a compatible RS-232C standard interface through a DB9 female connector, and the RS-422 and RS-485 terminals are output terminals through ten-digit binding posts.

The converter has a zero-delay automatic transceiver conversion circuit inside the converter. The unique I/O circuit automatically controls the direction of data flow without any handshake signals (such as RTS, DTR, etc.), and does not require jumper settings to achieve full duplex (RS -422), half-duplex (RS-485) mode conversion, plug and play. It is guaranteed to be suitable for all existing communication software and interface hardware, and does not require any software modifications to the previous RS-232-based working methods.

industrial-grade photoelectric isolation interface converter can provide reliable connections for point-to-point and point-to-multipoint communications. When using point-to-multipoint connection, the RS485/RS422 end of each converter can allow the connection of 128 RS-422 or RS-485 interface devices (theoretical value), with a data communication rate of 300-115.2Kbps and a power indicator light. and data flow indicator lights to indicate fault conditions.