The Allen-Bradley 1746-ITB16 is a high-speed discrete sinking input module designed for the Allen-Bradley SLC 500 PLC system. This fast response digital input module is widely used in industrial automation and process control applications requiring accurate and reliable signal detection. It features sixteen (16) input channels that operate at a nominal voltage of 24V DC with an input range of 10 to 30V DC. The 1746-ITB16 module includes one group of 16 input channels and has a backplane current draw of 0.085 amperes at 5V DC. It supports a maximum off-state voltage of 5V DC and a nominal input current of 8 milliamperes at 24V DC, delivering stable, precise, and efficient performance for industrial control and automation systems.