moving two 4472 boards from pxi to cPCI

[Davediego]

I have two 4472 PXI boards that I want to move into a cPCI system. These boards are used in an acquisition VI and are synchronized through the PXI Star bus for simultaneous acquisition. I am using an RTSI line to trigger the start of the acquisition. My quesion is if I move these boards into a cPCI system, what lines will be availible to synchronize with? What should I use instead of the PXI Star bus to synchronize the boards and are RTSI lines still availible to use for triggering? Thanks

[Greg Caesar]

Hello,

CompactPCI does not have the synchronization backplane of PXI, as PXI builds on CompactPCI by adding synchronization, among other features. I believe you will lose the ability to synchronize on the backplane if you move the PXI modules into a CompactPCI system (though individually, the boards will work fine).

One alternative is to move the CompactPCI modules into a PXI chassis - since CompactPCI modules will also work just fine in a PXI system.

Regards,
Greg