||The Power light displays the Modem's current status. If the Power light glows steadily green, the Modem is receiving power and fully operational. When the Power light is rapidly flashing, the Modem is initializing. If the Power light glows red when the Power cord is plugged in, the Modem has suffered a critical error and technical support should be contacted.
||The Ethernet light illuminates when the Modem is connected to a computer via its yellow Ethernet port.
||The DSL light illuminates when the Modem is connected to a DSL line and the unit is able to synchronize to the DSL signal from the ISP. When it flashes, the Modem's built-in DSL modem is training for the DSL service.
||The USB light illuminates when the Modem is connected to a computer vis its USB port.
||The Activity light flashes when there is data being transferred to and from the modem.