The Allen-Bradley 1771-IC is a digital input module from the 1771 Series, specifically designed for PLC-5 Systems, featuring advanced input filtering to mitigate voltage transients and electrical noise, enhancing system reliability and extending product lifespan. This sink-type module accommodates a 10-60V DC voltage category with a total of 8 inputs and requires a minimal backplane current load of 74mA. It boasts a robust input design that supports 2 and 3-wire devices, making it versatile for use with components such as proximity switches and photoelectric sensors, while a static-shield bag ensures protection against electrostatic discharge during handling.