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Current Loop Converters

Current Loop to Serial RS-232/422/485 Converters

Current loop devices use current on or current off to transmit binary digits. B&B current loop converters interface RS-232 and RS-422/485 systems to the most common current loop ports, 20 mA ports with open circuit voltages up to 30 V. Many models can be modified for higher loop currents and voltages. 

View and compare our RS-232/422/485 current loop converters below.  Click on each model for a photo and see the Details, Specs, and Download tabs for further information