The Allen-Bradley 1756-IA16I is a ControlLogix AC Digital Input Module designed for industrial automation applications. It provides 16 individually isolated inputs, making it ideal for interfacing with a wide range of 120V AC field devices such as push buttons, limit switches, and sensors. The individual isolation for each channel enhances noise immunity and protects the system from channel-to-channel crosstalk and ground loop currents. This module installs in any available slot of a ControlLogix chassis and requires a Removable Terminal Block (RTB) for field-side wiring connections.