Here are some key features of the 1769-IQ16 module:

Input Channels: It supports 16 input channels, which means it can monitor the status of up to 16 digital input signals.

Input Types: The module supports both sinking and sourcing input types. Sinking inputs are used when the common terminal is connected to the positive voltage and the inputs are connected to the common terminal. Sourcing inputs are used when the common terminal is connected to the negative voltage and the inputs are connected to the common terminal.

Voltage Range: The module is designed to handle a wide range of input voltages, typically from 10V DC to 32V DC.

Input Isolation: The module provides channel-to-channel and channel-to-ground isolation to help protect against electrical noise and interference.

Backplane Communication: The 1769-IQ16 module communicates with the CompactLogix controller through the backplane connection, enabling it to exchange data and receive instructions from the controller.