3: Installation and HardwareXPress DR+ User Guide 23LEDsFigure 3-9. LEDsTable 3-6. LED FunctionsLED MeaningSerial port - TXD LED (Yellow) Off = No Transmit Data from XPress DR+Blinking = Data being transmitted from XPress DR+Serial port - RXD LED (Green) Off = No Received Data by XPress DR+Blinking = Data being received by XPress DR+Ethernet port - 10/100 Link (Green) Off = No Ethernet Link establishedSteady On = Ethernet Link is establishedEthernet port – Activity (Yellow) Off = No Data activityBlinking = Data activityPower/Diagnostic LED (Orange) Steady On = Power OKBlinking 2x = No DHCP responseBlinking 2x = Setup Menu active--startupRXD Activity LEDTXD Activity LEDEthernet Link LEDEthernet Activity LEDPower/Diagnostic LED