B&B Electronics CL226 RS-232 to RS-422/485 Serial Converter

The B&B Electronics CL226 is a compact, optically isolated RS-232 to RS-422/RS-485 serial converter designed for reliable data communication in industrial and commercial environments. It enables seamless connectivity between RS-232 devices and RS-422 or RS-485 networks, extending communication distances and improving noise immunity over standard serial connections.

Key Features:

• Converts RS-232 signals to RS-422 or RS-485 serial protocols
• Optical isolation protects connected equipment from ground loops and electrical transients
• Supports multi-drop RS-485 networks for connecting multiple devices on a single bus
• Extends serial communication distances well beyond the standard RS-232 range
• Compact, DIN-rail or panel-mountable form factor suited for industrial installations
• Transparent operation requires no software configuration or drivers
• Wide operating temperature range suitable for industrial environments

The CL226 is ideal for connecting legacy RS-232 equipment to modern RS-422/RS-485 networks in manufacturing, process control, building automation, and other industrial applications. Its optical isolation barrier helps eliminate common-mode noise and ground potential differences that can cause data errors or equipment damage.