B&B Electronics BB2861 RS-232 to RS-485/422 Isolated DIN Rail Serial Converter

The B&B Electronics BB2861 is an industrial-grade, isolated RS-232 to RS-485/422 serial converter designed for reliable signal conversion in demanding environments. Built for DIN rail mounting, this unit is well-suited for control panels, automation cabinets, and industrial networking installations where space efficiency and robust performance are critical.

Optical isolation protects both the host equipment and the serial network from ground loops, voltage spikes, and transient noise — a common requirement in factory automation, building controls, and process instrumentation systems.

Key Features:

• Converts RS-232 signals to RS-485 or RS-422 for extended distance serial communication
• Optical isolation protects against ground loops and electrical transients
• DIN rail mountable form factor for easy panel installation
• Supports 2-wire and 4-wire RS-485/422 configurations
• Wide baud rate support for compatibility with a broad range of serial devices
• LED indicators for power and data activity monitoring
• Industrial temperature range for reliable operation in harsh environments

The BB2861 from B&B Electronics Manufacturing Company (Advantech B+B SmartWorx) is a trusted solution for integrators and engineers who need dependable serial protocol conversion with the added assurance of galvanic isolation.