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Can I Use the PXI-1000B DC Chassis with a PXI-818x Controller?



Hardware: PXI/CompactPCI>>Controllers>>PXI-8186, PXI/CompactPCI>>Chassis>>PXI-1000B, PXI/CompactPCI>>Controllers>>PXI-8187

Problem:
I would like to use a PXI-818x series controller with my PXI-1000B chassis which has the DC power supply option. What limitations do I need to be aware of?

Solution:
The PXI-1000B DC chassis and PXI-818x controller combination is valid, however, National Instruments does not recommend using these two devices together due to the power consumption compared to the available power.

The PXI-1000B DC is only capable of providing a combined 100W of power on the 3.3V and 5V power rails. At worst, the PXI-8186 controller needs 58.9W, leaving 41.1W available power for the PXI modules installed in the chassis. The combination is valid, but it is highly recommended to verify the power consumption of all the PXI modules to be installed in order to ensure that they can all be powered correctly.

The following table was used to calculate the maximum power consumption of the PXI-8186.  This table was found in Appendix A of the user manual linked below.



The following formula was used for the calculation:

MAX POWER = (5A * 3.3V) + (8A * 5V) + (0.2A * 12V) = 16.5 + 40 + 2.4 = 58.9W

Refer to the manuals linked below for more information on power specifications of the PXI-1000B and PXI-8186.


Related Links:
Product Manuals: PXI-1000B User Manual (February 1999)
Product Manuals: NI PXI-8186 User Manual (February 2005)
KnowledgeBase 4POD8CBB : PXIe Controller and Chassis Compatibility

Attachments:





Report Date: 06/01/2004
Last Updated: 07/27/2017
Document ID: 3A0BPIQ8

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