Front Panel Features
The PXIe-8821 has two front panel LEDs that show PC status:
•
DRIVE LED
— Indicates when an access to the internal drive is occurring.
•
PWR OK/FAULT LED
—Indicates the controller status. The LED indicates one of the
following states:
–
Green ON steady
—PXI and onboard power is on and within regulation limits.
–
Green BLINKING
—One of the onboard power supplies is operating outside the
normal limits or the system power supply is out of regulation.
–
OFF
—The controller is powered off.
–
Red BLINKING
—The controller detected a power rail fault when trying to boot.
–
Red SOLID
—The controller detected a thermal fault and has shut down to protect
the system.
•
USER LEDs
— Two bi-color green/yellow LEDs (
USER1
and
USER2
) that you can
define to meet the needs of your LabVIEW application.
Removing the PXIe-8821 from a PXI Express Chassis
To remove the PXIe-8821 from a PXI Express chassis, complete the following steps.
1.
Power off the chassis.
2.
Remove any cables that may be attached to the controller front panel.
3.
Unscrew the four bracket-retaining screws in the front panel.
4.
Press the injector/ejector handle down.
5.
Slide the unit out of the chassis.
Cleaning
Use a dry, low-velocity stream of air to clean the PXIe-8821 controller. If needed, use a soft,
nonmetallic brush for cleaning around components.
Make sure that the device is completely dry and free from contaminants before returning it to
service.
Common Configuration Questions
This section answers common configuration questions you may have when using a PXIe-8821
embedded controller.
General Questions
What do the LEDs on the front panel mean?
Refer to the LED status descriptions in the
Front Panel Features
section.
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PXIe-8821 Getting Started Guide
