RDL RU-SC2 RS-232/422 Serial Converter (Full-Duplex)The RU SC2 is the ideal choice in installations when two RS 232 devices requiring full duplex communication are to be connected at a long distance. Connection to the RS 232 device is made on the front panel. The RS 422 input and output connections and power connections are made on the rear panel through full size, clearly identified, barrier block terminals. Two RU SC2s may be connected (using the RS 422 connections) at each end of 2 pair of long,