As evolutionary enhancements to the venerable VMEbus, both VXS and VPX deliver significant improvements in data bandwidth, connectivity power distribution, and cooling.
One area clearly supported by OpenVPX is a DoD-specific Quick Reaction Capability (QRC), where the development and deployment cycles demanded by the market are significantly reduced to achieve critical program needs.
When VXS, a proposal for standardizing gigabit serial switched fabrics shook the embedded community in 2002 as part of the VMEbus renaissance, XMC, a natural extension of that technology to PMC modules was inevitable. VXS is the popular name for a switched serial backplane fabric implementation for VMEbus. The VXS specification is fabric-transparent, in that there are subspecifications, one for each of fabrics: Infiniband, Serial RapidIO, Gigabit Ethernet, PCI Express.