The Aeon Labs USB Adapter connects a PC to a Z-Wave network using the USB interface. The unit conveys the USB signals to a serial interface. For this conversion function a device driver is needed. The operating system and the Z-Wave capable home automation software recognize the device as virtual serial interface. PC software communicates with the device via this serial port using a serial API-protocol of Z-Wave, which is described in the document Z-Wave Application Programmers Guide, INS10247&rdquo.