RS232 to RS422/RS485 or 20mA converters, DIN-rail
Compact industrial RS232 to RS422/RS485 and 20mA converters for DIN-rail mounting. To provide "ground loops" and to protect the RS232 port of your PC, PLC or controller, the RS232 and RS422 / RS485 and 20mA ports are isolated from each other. Some are 3-way isolated which means that there is also isolation between the power supply and all serial ports. For RS485 half duplex connections there are converters who switch automaticly between send and receive. These converters have the code extension ADE (Auto Drive Enable) or ATA (Auto Turn Arround). For RS485 or RS422 applications with a special protocol, there are programmable converters available.
RS232 <> RS422/RS485 fully isolated converter with self configuration and automatic line turn-around, MI400e-RD
RS232 to RS422/RS485 or 20mA converter, KD485-STD