Teradyne’s Di-Series of digital test instruments provides the industry’s most powerful combination of performance, density, flexibility, and reliability in a highly integrated, standards-based solution. The Di-Series increases usability, functionality, and commonality, while reducing the total number of instruments needed by a test system. Using Di-Series instruments decreases a test systems' footprint, programming, support and cost-of-ownership. As part of Teradyne’s Core System Instrumentation (CSi) portfolio, the Di-Series instruments meet the essential requirements common to defense and aerospace ATE. The Di-Series instruments also provide the key features needed to test all levels of integration from the board level shop replaceable assembly/shop replaceable unit (SRA/SRU) to box level line replaceable unit/weapon replacement assembly (LRU/WRA).