Black Box RS-232 to Current-Loop Interface Bidirectional Converter - transc

The RS-232 to Current Loop Interface Converters are bidirectional, self-contained units that enable you to interconnect a digital 20/30/60-mA unipolar Current Loop interface to an RS-232 interface. The converters cannot be used with an analog Current Loop (4 to 20 mA) or bipolar Current Loop.