B&B Electronics CL24 Current Loop to RS-232 Converter

The B&B Electronics CL24 is an industrial-grade current loop to RS-232 signal converter designed for reliable serial data communication in demanding environments. B&B Electronics Manufacturing Company (now part of Advantech B+B SmartWorx) is a trusted name in industrial connectivity and data communication products.

Key Features:

• Converts 20mA current loop signals to RS-232 serial interface
• Supports passive and active current loop configurations
• Compact, rugged housing suitable for industrial installations
• Wide operating temperature range for harsh environments
• No external power required for passive loop operation
• DB-25 or compatible serial connector interface
• LED indicators for signal monitoring and diagnostics

The CL24 is well-suited for connecting legacy current loop devices — such as older terminals, printers, and industrial equipment — to modern RS-232 serial ports. Its reliable signal conversion makes it a practical solution for maintaining and extending the life of legacy serial infrastructure.