The Allen-Bradley 1756-IB16 is an integral ControlLogix I/O module designed to handle discrete DC input signals with a nominal input voltage of 24V DC and a voltage category of 12/24V DC sink. Providing 16 input points divided into two groups of eight, it attaches seamlessly to the 1756 ControlLogix chassis and is ideal for various configurations, including standalone controllers and complex distributed control systems. With support for Removable Terminal Blocks (RTBs) like the 1756-TBNH and 1756-TBSH, this module ensures flexible and secure termination of input signals, and features user-configurable change-of-state detection for rapid response applications.