B&B Electronics CL34 RS-232 to 20mA Current Loop Converter

The B&B Electronics CL34 is a compact RS-232 to 20mA current loop converter designed for reliable serial data communication between modern RS-232 equipment and legacy current loop devices. Ideal for industrial environments, this converter bridges the gap between RS-232 ports and 20mA current loop interfaces commonly found on older terminals, printers, PLCs, and instrumentation.

Key Features:

• Converts RS-232 signals to 20mA active/passive current loop
• Supports both active and passive current loop configurations
• Compact, rugged design suited for industrial and commercial applications
• No external power required when used in active mode (loop-powered)
• Transparent data transmission — no protocol conversion or software required
• Compatible with a wide range of baud rates
• Simple, plug-and-play installation with DB-25 or terminal block connections

The CL34 from B&B Electronics Manufacturing Company is a dependable solution for maintaining connectivity with legacy serial equipment in manufacturing, process control, and data acquisition systems. Its passive design and durable construction make it a long-lasting interface solution for demanding environments.