The Odem, designed and supplied by EPS, is a rugged, conduction cooled field tester system serving as a comprehensive testing and fault locating device for the Yiron system. The system comprises the MCPU module (equipped with Intel ATOM® COM-Express), a high density multi port IO and communication board (the IOAD), a control board equipped with high current Solid State switches(the CSB), load simulating devices and a large character alphanumeric display. The system is modular, flexible, and maintainable and is operated by EPS software APIs.