The Allen-Bradley 1753-IB16 is a digital DC input module designed for the GuardPLC 1600 safety control system. It provides 16 sinking input points, enabling the controller to monitor the status of various field devices such as push buttons, limit switches, and sensors within a safety-related application. This module is engineered for high reliability and is an integral part of building a robust and certified machine safety system, ensuring dependable performance in critical industrial environments.