B&B Electronics CL279 Current Loop to RS-232 Converter

The B&B Electronics CL279 is a current loop to RS-232 signal converter designed for interfacing legacy 20mA current loop serial devices with modern RS-232 equipment. It provides a reliable, straightforward solution for converting passive 20mA current loop signals to standard RS-232 voltage levels, enabling connectivity between older industrial and teletype-style equipment and contemporary serial communication systems.

Key Features:

• Converts 20mA passive current loop signals to RS-232 serial levels
• Supports full-duplex serial communication
• Compact, industry-standard form factor for easy installation
• Compatible with a wide range of baud rates
• No external power supply required for passive loop operation
• Designed for industrial reliability and long-term continuous use

The CL279 is ideal for maintaining legacy serial device connectivity in industrial automation, data acquisition, and communication systems where 20mA current loop interfaces are still in use.