The USB interface UIMrf combines high-end technology with perfect functionality and flexibility to establish a connection between PC and KNX RF. The innovative device enables a data connection for the ETS, for commissioning and configuring bus devices, for visualization, protocolling and diagnosis. Via the flexible common EMI protocol supported by the UIMrf any software based on Falcon (ETS, EITT...) is able to communicate. The intelligent USB interface device supports long telegrams as well as Raw Frames, a EITT diagnostic mode .