The KNX USB IN00C01USB interface is a data interface between the Personal Computer and the KNX bus installation. It can be used as a programming interface for ETS® software version 5 or higher and is capable of handling extended frames. Extended frames speed up downloads to devices that can receive these types of telegrams.
The LED on board the device indicates the operating status and any transmission errors on the bus. The USB connector is galvanically isolated from the KNX® bus.