Section 1 - Product OverviewD-Link DSL-2750U User Manual 8Hardware OverviewLEDsPowerA steady green light indicates the unit ispowered on. When the device is poweredoff it remains dark. Lights steady greenduring power on self-test (POST) meansthe power connection works properly.DSLA steady green light indicates avalid ADSL connection. This willlight after the ADSL negotiationprocess has been settled. Ablinking green light indicates thatADLS is attempting to sync.LANA solid green light indicates a valid link onstartup. This light will blink when there isactivity currently passing through theEthernet port.WLANA steady green light indicates awireless connection. A blinkinggreen light indicates activity onthe WLAN interface.InternetA steady green light indicates a validinternet connection.WPSA blinking green light indicates thedevice has connected the wirelessnetwork card, A blinking greenlight indicates activity on WPS.USBA steady green light indicates avalid link on startup. This light willblink when there is activityceurrently passing through theUSB port.