The Allen-Bradley 1756-IH16I is a ControlLogix 120V AC/DC Digital Input Module. This module features 16 individually isolated inputs, making it ideal for applications requiring high noise immunity and protection between channels. It is designed to interface with a wide range of field devices such as push buttons, limit switches, and sensors within a ControlLogix system. Its robust design ensures reliable performance in demanding industrial environments, providing a secure connection between the control system and external high-voltage signals.