B&B Electronics CL08 RS-232 to RS-485/RS-422 Serial Converter

The B&B Electronics CL08 is a compact, industrial-grade serial interface converter designed to bridge RS-232 devices with RS-485 or RS-422 networks. Ideal for industrial automation, building control systems, and legacy serial device integration, the CL08 provides reliable, transparent data conversion without the need for external power or complex configuration.

Key Features:

• Converts RS-232 signals to RS-485 or RS-422 for extended distance communication
• Supports 2-wire (half-duplex) and 4-wire (full-duplex) RS-485/RS-422 configurations
• Powered directly from the RS-232 port — no external power supply required
• Plug-and-play operation with no drivers or software needed
• DB9 RS-232 interface for easy connection to standard serial ports
• Compact, rugged housing suitable for industrial environments
• Supports data rates up to 115.2 Kbps
• Automatic send data (SD) control for seamless half-duplex operation

The CL08 is an ideal solution for connecting PCs, PLCs, and other RS-232 equipped devices to RS-485 multi-drop networks or point-to-point RS-422 links, extending communication distances well beyond the 50-foot RS-232 limitation — up to 4,000 feet over RS-485.