Front Panel

1. IDE Single-color LED indicates data transmission to or from the internal IDE storage media.
2. LAN Single-color LED indicates data transmission to or from the Ethernet network interface.
3. XDAB Single-color LED indicates data transmission to or from the XDAB audio expansion bus (NION n3 and n6 only).
4. Mute/Fault Single-color LED indicates muted audio condition. When lit, the fault relay is activated. For more information, see Fault relay.
5. LCD Display Backlit graphical display provides access to system hardware monitoring, configuration and status functionality. (NION n3, n6 and nX only).
6. Air Vent Air intake vent provides fresh air flow to internal cooling system.

   Do not block or obstruct this vent. Proper airflow must be maintained for proper operation.

7. ATTN Button includes a red LED that flashes when user response is required.

   When pressed, the LCD screen will update to show details of the error (NION n3, n6 and nX only).

8. Power Button will start the boot up process when in standby mode. When the unit is running, the button will cause the LCD screen to jump directly to the Power menu, where you can choose to Power Down or Reboot.

   Note: There is an intentional delay after powering off and before the Power button will turn on the unit. This is meant to protect the circuitry by allowing voltages to fully discharge. The integrated LED will not illuminate.

9. Soft Buttons (4). Momentary buttons used in conjunction with the LCD display allow user input and navigation of hardware functionality. The function of each button is indicated on the display text of the LCD display graphic nearest the corresponding button. The integrated LEDs will not illuminate (NION n3, n6 and nX only).
10. Data Wheel Continuous action rotary encoder and embedded push-button provide navigation and data entry functionality in conjunction with the LCD display. The function of these controls is dependent on the active function of the LCD display (NION n3, n6 and nX only).