The APS Upgrade Project (APS-U) requires high performance X-Ray Beam Position Monitors (XBPM) to measure the beam orbit and trajectory. The APS-U XBPM drive system consists of a stepper motor, limit switches, a potentiometer, and air control equipment. This equipment will be controlled by electronics hardware located in the mezzanine. Nineteen high heat load front ends and sixteen canted undulator front ends front ends will be installed. Each front end requires one set of the hardware listed for every two front ends for a total of 20 units (2 sets of spares). This document defines the specification for the control system hardware.

The contractor is responsible for fabrication, quality control, test, documentation, and delivery of the drive system hardware in compliance with the attached Statement of Work.