MXI Express (MXIe) LED Off or Red

Updated Mar 5, 2019

Reported In

Hardware

  • MXI Cable
  • PXI Remote Control Module
  • Device for PXI Remote Control

Issue Details

I have a PXIe chassis with an remote controller, MXI-Express (MXIe), connection to my computer. Everything is connected, but I can't see my devices in NI MAX. 
  • I have my MXIe card in slot 1 of my PXIe chassis, and the power LED on my MXIe card is either off or flickering red
  • I have a PXIe chassis with a built-in MXIe controller, and the activity LED on my chassis is solid red
  • My PXI chassis powers on briefly before the power LED flashes red and the chassis shuts off on its own
How do I fix this problem?

Solution

Ensure the PXI chassis and computer are connected properly and powered. Additionally, ensure the cooling fans have adequate clearance with nearby objects. If the fans cannot provide proper cooling to the chassis because they do not have adequate clearance or have become clogged with dust and dirt, the chassis may automatically detect that it cannot be properly cooled and will automatically shut off.

PXIe with MXIe Card
  • If the PWR LED on the card is off, then there is no power being supplied to the device
  • If the PWR LED on the card is red, then the power supplied is out of specification
  • If the LINK LED on the card is off, then there is no link to the chassis
PXIe with Integrated MXIe
  • If the LED on the chassis is off, then there is no power being supplied to the device
  • If the LED on the chassis is blinking red, then the power supplied is out of specification
  • If the LED on the chassis is solid amber, then there is no link to the chassis
If your LED status indicates that there is no link to the chassis, it is possible that the MXIe connector was inserted upside down. To correct this, power off your PC, and PXI chassis, and rotate the connections on both ends of the cable to ensure they match.


 If this doesn't resolve your issue and you still are not able to see your device in NI MAX, refer to the MXI Compatibility and Connectivity Troubleshooting Guide for further troubleshooting steps. 

Note: If you're not using a National Instruments PXI chassis, ensure that the provided voltages are within the specifications listed in the user manual of your MXI device.
 

Additional Information

Table 1: LED status on NI PXI-8360 and NI PXIe-8360
LEDColourMeaning
PWROffNo Power
 Solid RedPower is out of spec
 Solid GreenPower is within spec
LINKOffLink not established
 Solid GreenLink established
 
Table 2: LED Status for NI PCI-8361, NI PCIe-8362, PXI-8364 and PXIe-8364
ColourMeaning
OffPower is off
Blinking RedPower is out if spec
Solid AmberPower is within spec, no link to chassis
Solid GreenPower is within spec, link established

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