B&B Electronics CL267 RS-232 to Current Loop Converter

The B&B Electronics CL267 is a passive RS-232 to current loop interface converter designed for reliable serial data communication over longer distances. Current loop interfaces are widely used in industrial environments where noise immunity and extended cable runs are required, making the CL267 an ideal solution for connecting RS-232 equipment to legacy current loop devices.

Key Features:

• Converts RS-232 signals to 20mA current loop interface
• Passive design — powered directly from the RS-232 signal lines (no external power required)
• Compatible with standard RS-232 serial ports
• Supports full-duplex communication
• Compact form factor for easy integration
• Suitable for industrial and legacy serial device connectivity
• Rugged construction for reliable operation in demanding environments

The CL267 is an excellent choice for engineers and technicians needing to bridge modern RS-232 serial equipment with current loop peripherals such as older terminals, printers, and industrial controllers. Its passive, self-powered design simplifies installation and eliminates the need for an external power supply.