The Allen-Bradley 1791-24B8 is a DC-powered Block I/O module from the Rockwell Automation 1791 series, designed for efficient signal interfacing in distributed control applications. It provides a total of 32 I/O points, consisting of 24 input points and 8 output points. Both the input and output voltage ranges are rated from 10 to 30 volts DC, ensuring consistent and reliable operation. The 1791-24B8 supports an operating temperature range of 32 to 140°F (0 to 60°C) and a relative humidity range of 5 to 95% non-condensing, offering dependable performance in a wide variety of industrial environments.