Convert async RS232 to RS422/485 at speeds up to 19.2 kbps with distances up to 4000 ft over CATx cables in industrial environments with DIN Rail mounting. Convert async RS232 to RS422/485 at speeds up to 19.2 kbps with distances up to 4000 ft over CATx cables. These devices are great for connecting RS232 devices into an existing RS422/485 environment in factory automation building automation and process automation. They can be mounted using DIN Rail and can withstand operating temperatures of -40 to 176 degrees F (-40 to 80 C).