The Allen-Bradley 1746-IB32 is a 24V DC sinking input module designed for the Allen-Bradley SLC 500 Programmable Logic Controller (PLC) system. This high-density digital input module features thirty-two (32) sink input channels that operate within a signal voltage range of 15–30V DC at 50°C and 15–26.4V DC at 60°C, providing reliable performance in demanding industrial environments. The 1746-IB32 module has a backplane current consumption of 0.05 amperes and a signal delay time of 3 milliseconds for both on and off transitions. Ideal for industrial automation and process control applications, the Allen-Bradley 1746-IB32 ensures fast, stable, and accurate input signal processing for SLC 500 PLC systems.