List of Abbreviations ===================== .. glossary:: ADC Analog to Digital Converter - An electrical device that converts analog physical measurements to digital values. The physical measurement is often assumed to be a voltage. API Application Programming Interface - An interface between software components. DUT Device under Test - A DUT is a product or system undergoing a test. The test is performed by the devices connected to the DUT. In the context of this manual the LXA TAC is a considered part of the test-system and the LXA TAC is intended to be connected to the DUT. PCB Printed Circuit Board - A part of an electrical assembly providing physical support and electrical connections to other components.