B&B Electronics CL280 Current Loop to RS-232 Converter

The B&B Electronics CL280 is a current loop to RS-232 level converter designed to interface current loop serial devices with standard RS-232 equipment. This compact, passive converter enables reliable serial communication between legacy current loop devices and modern RS-232 ports without the need for an external power supply.

Key Features:

• Converts between 20mA current loop and RS-232 signal levels
• Passive design — powered directly from the RS-232 interface signals
• Supports full-duplex communication
• Compact form factor for easy installation
• Compatible with a wide range of serial communication equipment
• No external power supply required

The CL280 is ideal for industrial, laboratory, and office environments where legacy current loop serial peripherals such as terminals, printers, and data acquisition equipment must be connected to RS-232-equipped hosts or computers. Its passive, bus-powered design simplifies installation and reduces cabling requirements.