Front panel LED indicators

There are several LEDs on the NION front panel that help indicate unit status.


Fault
RED	Audio not working.
OFF	Audio working.

The Fault LED tracks the state of the fault relay. (The fault relay signals appear on pins of the GPIO connector.)

Note: The RED state does not necessarily indicate a problem, but that audio is not actively being processed and passed. This state occurs normally when the unit is rebooting or has not yet been configured to run a Project. It also occurs when the unit has encountered a problem and can no longer process and pass audio.


X-DAB
GREEN	Primary and backup rings are operational.
YELLOW OR GREEN BLINKING	Running in backup with single cable missing - all audio present.
YELLOW/RED OR RED BLINKING	Running in backup mode with multiple cables/nodes missing - some audio gone.
RED	Failure - some or all audio gone. Not running in backup mode.
OFF	XDAB is not in use (in the current Project/Role for this NioNode).

Note: The XDAB LED is updated only when XDAB is used by the NioNode in the current Project and the NioNode is up and passing audio.


LAN
GREEN	Ethernet link.
OFF	No Ethernet Link.

CobraNet

This LED does not indicate the status of the Dante DLM.


IDE
GREEN	Mass storage (CompactFlash) read or write activity.
OFF	No activity.

Tip: The IDE LED indicator is remarkably similar to the disk status LED you may have on the front of your PC or on the bezel of your laptop.


Attn
RED BLINKING	Indicates there is an error or warning condition of interest.
OFF	No status change of interest.

Tip: This indicator is paired with a button. When the LED blinks, the button can be pressed to cause the LCD to navigate to a page displaying the source of the condition.


Attn
OFF	Unit is off.
ORANGE	Unit is booting up or down.
GREEN	Unit has booted up.