The first step to setup the development kit is to install the proper PC drivers. Telit Cinterion provides two different installers according to the host system architecture (x86 or x64). In the link above, the customer can find the available set of USB drivers. With the EVB disconnected from the PC, please run the installer package and after the welcome screen, follow the instructions of the Windows^® Wizard. The second step is to plug the module on the EVB, making sure that the evaluation board and adapter connectors are properly mated. The third step is to connect the board with the PC. Plug the USB cable, one end of the USB port to evaluation board and the other end of the USB port to the laptop or PC. Next, connect the power supply adapter and the external power cable to the board. Finally, power on. The on/off functionality and its use is dependent on the module used. Please refer to the related module hardware user guide and interface user guide. Typically, to turn on the module, the on/off button must be pressed for at least 5 seconds and then released. On the PC, please go to Control Panel > Device Manager and check the COM port number. USB Modem ports are ACM devices and can be used as AT Command interface. To identify the corresponding COM port number, just right click on one of the two Telit Cinterion USB Modem entries, select Properties, then Modem tab.