© National Instruments Corporation 9 NI USB-9219 User Guide and SpecificationsConnecting the NI USB-9219 to a ComputerPlug one end of the USB cable into the NI USB-9219 and the other end intoan available USB port on the computer. Refer to the NI-DAQmx for USBDevices Getting Started Guide that shipped with your device, and is alsoaccessible from Start»All Programs»National Instruments»NI-DAQ,for more information.LED IndicatorThe NI USB-9219 device has a green LED next to the USB connector. TheLED indicator indicates device status, as listed in Table 1. When the deviceis connected to a USB port, the LED blinks steadily to indicate that thedevice is initialized and is receiving power from the connection.If the LED is not blinking, it may mean that the device is not initialized orthe computer is in standby mode. In order for the device to be recognized,the device must be connected to a computer that has NI-DAQmx installedon it. If your device is not blinking, make sure your computer has the latestversion of NI-DAQmx installed on it, and the computer is not in standbymode.Table 1. LED State/Device StatusLED State Device StatusNot lit Device not connected or in suspend.On, not blinking Device connected, but no module installed.Single-blink Operating normally.Double-blink Operating normally.Quadruple-blink Device error. Refer to ni.com/support.