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2-5
Front Panel LED Status
The PXIe-4480/4481 module uses two LEDs to indicate status and activity. Table 2-5
summarizes the functionality of the LEDs on the module.
Table 2-5.
PXIe-4480/4481 LED Descriptions
LED
State
Description
Access
Off
Module is not yet functional, or the module has detected
a problem with a power rail.
Amber
The module is being accessed. The Access LED flashes
amber for 75 ms when the module is accessed.
Green
Module is ready to be accessed by software.
Active
Off
Module is not acquiring or preparing to acquire data.
Amber
Module is waiting for a trigger event to start an
acquisition.
Green
An acquisition has been triggered, and the module is
currently acquiring data.
Blinking
Amber/Green
The module is changing reference clock timebase.
Steady Red
An error has been detected by hardware. Use NI-DAQmx
software to determine the cause and/or clear the error by
resetting the module.