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ANT-20/ANT-20E Broadband Analyzer/GeneratorIntroduction I-96 Often used terminologyApplicationAn application consists of a suitable collection of virtual instruments (VIs for short) used to solvea measurement task. In this way applications can be defined e.g. for physical layer or ATM layermeasurements.Applications are configured and managed in the “ANT20 - ” window(Application Manager VI).If an application is saved, the parameter settings for the VIs used will also be saved.In the same way, the measurement results are also saved with the application.When the application is loaded, the test equipment is automatically set to the same settings aswhen the application was last used.Test typeThe “test type” is a concept used for ATM measurements. Test types are used to simply andquickly configure the instrument and prevent operating errors, particularly if signaling emulationis being used.A test type consists of a measurement mode (only “ATM-Layer QoS” is available in this softwareversion) and a “connection mode”.When a test type is selected, the instrument is pre-set for performing the measurement. A setupdialog is provided for each test type so that you can make settings that are specific to the testyou want to perform.The settings for all test types used are saved within an application. When an application isloaded, the last test type used in the application will automatically be activated.Example test types:• ATM Layer QoS (PVC) - Point-to-point• ATM Layer QoS (SVC) - Calling• ATM Layer QoS (SVC) - Self-CallConnection modeThe “connection mode” indicates the way that the virtual connection is switched through theATM layer.Example connection modes:• For permanent virtual connections (PVC):– Point-to-point– Looped• For switched virtual connections SVC):– Calling (switched point-to-point connection with calling instrument)– Called (switched point-to-point connection with called instrument)– Self-Call (switched connection with self-call)
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