B&B Electronics CL257 RS-232 to Current Loop Converter

The B&B Electronics CL257 is an RS-232 to Current Loop interface converter designed for reliable serial data communication in industrial and commercial environments. This compact converter bridges the gap between modern RS-232 equipment and legacy 20mA current loop devices, making it ideal for connecting terminals, printers, modems, and other serial peripherals that use current loop signaling.

Key Features:

• Converts RS-232 signals to 20mA current loop and vice versa
• Supports both active and passive current loop configurations
• Compact, easy-to-install form factor
• Designed for industrial-grade reliability and longevity
• Compatible with a wide range of RS-232 serial devices and legacy current loop equipment
• No external power required in active mode configurations

The CL257 from B&B Electronics is a trusted solution for integrators and technicians needing to maintain or expand legacy serial networks without replacing existing current loop infrastructure. It is suitable for use in manufacturing, process control, and building automation environments.