B&B Electronics CL44 RS-232 to Current Loop Converter

The B&B Electronics CL44 is a compact RS-232 to 20mA current loop converter designed for reliable serial data communication in industrial and commercial environments. It enables seamless interfacing between RS-232 equipment and devices that use the 20mA current loop standard, which is commonly found in legacy industrial equipment, teletype machines, and process control systems.

Key Features:

• Converts RS-232 signals to 20mA active/passive current loop
• Supports both active and passive current loop configurations
• Compact, self-contained design for easy installation
• Designed for industrial-grade reliability and long-term operation
• Compatible with a wide range of RS-232 serial devices
• No external power supply required in active mode configurations

The CL44 is an ideal solution for connecting modern computers or controllers to older current loop-based peripherals, ensuring compatibility and extending the life of legacy serial equipment in industrial, manufacturing, and automation settings.