With our data test for the configured equipment, we test the project element data of an interlocking in regard to it being complete and correct. We test the elements of the outdoor equipment of the electronic interlocking, their topographic arrangement and their specific properties. We already test this data while installing the equipment at its destination. Thus, when the equipment is completed, the data set for the interlocking is prepared and tested. This procedure offers one special advantage: When constructing new equipment or changing present installations, a large amount of the tests - both for Siemens as for customer data - can be performed in our system test centre. Local tests are not necessary. This results in fastest possible switching times when commissioning the new system.