CalEasy architecture is described in the following block diagram:
CalEasy Block Diagram
CalEasy uses DLLs to communicate with the device that is being verified / calibrated and the standard instruments which are used by the device calibration program. Every device under test (DUT), that is a Marvin Test Solutions instrument that is being calibrated, is connected to the standard instruments via calibration adapters or cables. These cables or adapters are specifically designed for the calibration program that is specific to DUT. See the section in this manual that describes your device for specific information about required cables and adapters.