The Allen-Bradley 1746-HSTP1 is an intelligent stepper controller module from the SLC 500 series, designed for precise motion control in industrial automation systems. This 1746-HSTP1 module is compatible with other 1746 I/O modules and supports SLC 5/01, 5/02, 5/03, 5/04, 5/05 processors, as well as fixed-style hardware with a 2-slot expansion rack. It features differential inputs and digital outputs with an input frequency of 250 kHz, ensuring high-speed and accurate stepper control. The Allen-Bradley 1746-HSTP1 SLC 500 stepper controller module provides reliable integration for distributed motion control applications.