The Allen-Bradley 1791-8BC is a 16-point combination discrete Block I/O module from the Rockwell Automation 1791 series, designed for distributed control and efficient I/O management in industrial automation systems. It features eight 24V DC discrete input channels and eight 24V DC discrete output channels, with output current ratings of 500 mA at 60°C or 1 A at 30°C in vertical mounting, and 250 mA at 60°C or 500 mA at 30°C in horizontal mounting. The 1791-8BC operates on an external 19.2–30V DC power supply with a 300 mA input current and supports the Remote I/O (RIO) communication protocol for seamless integration with Allen-Bradley control networks.