Nordic ID Group | Salo IoT Center | Joensuunkatu 7 | FI-24100 Salo |FinlandOffice +358 2 727 7700 | Fax + 358 2 727 7720 | info@nordicid.com 14 / 222018-01-19Nordic ID Sampo S2 User GuideVersion 1.01.10.1.4. COMMUNICATION LEDCommunication LED indicates whether the reader has established USB, ethernet, WLAN or WWANconnection. Functionality of the Communication LED can be configured via NUR API if needed.Functionality of the Communication LED differs depending on whether USB or TCP/IP (ethernet, WLANand WWAN) connection is used.• USB connection in useo LED off: The USB cable is unplugged.o LED on: The USB cable is connected.• Ethernet, WLAN or WWAN connection in useo LED off: The reader has no IP address. In addition, the red error LED is blinking.o LED blinking: The reader has IP address, but the host application is not connectedo LED on: The reader has IP address and the host application is connected.RESET BUTTONReset button of Nordic ID Sampo S2 contains the following functionalities:• Rebooting the readero Press the reset button 2s (orange NOTIFICATION LED starts blinking once the resetbutton is pressed) and release it once 3 green LEDs are lit• Boot to recovery mode*