Elma Bustronic, TEK Microsystems, and QinetiQ Real Time Embedded Systems (RTES) have teamed up in the development of a new VXS, VITA 41-based mesh architecture that has been proposed as a standard to define alternative backplane topologies for VXS.
Using the VXS Processor Mesh to deliver 112.5 GB/s of aggregate throughput within the processing mesh in a single chassis, the three companies have introduced a 12 slot chassis implementing the topology. The bybrid backplane implements two VME64x slots, three VME64x / VXS payload slots, and six VXS switch slots.
Each switch slot implements twenty x 4 links for a total of 25 GB/s per
switch slot. The system architecture supports up to 7.5 GB/s of throughput
between the I/O front end and the processing mesh and a total of 112.5
GB/s of aggregate throughput within the processing mesh itself.
According to Andy Reddig, president and CTO of TEK, by comparison, the VITA 46.3 Serial RapidIO mesh slot supports only four x4 links for a total of 5 GB/s per slot and an AdvancedTCA full mesh slot supports fifteen x4 links for a total of 18.75 GB/s per slot.
Targeted at applications such as Synthetic Aperture Radar (SAR), the new architecture supports a range of topologies such as traditional stars, dual stars, redundant dual stars, 4x pipelines (16x full duplex) 32x unidirectional rings or 16x bi-directional rings as well as a 4-channel (16x full duplex square mesh).
Because each processor slot is served by the central dual star VXS switched fabric that is common to all VITA 41 architectures, Reddiq said data can be introduced to any of the processor fabric slots and data can be exported from any slot.
“The innovative addition of a fat-pipe processor fabric segment further enhances the other power features of the VITA 41 architecture such as the I2C management bus, backwards compatibility to VME64x, PMC/XMC mezzanine sockets, rear transition slots, and the rugged VME64x mechanical architecture,” he said.
Other features implemented in the initial backplane offering is a rear facing I/O slot that conglomerates all of the payload slot rP0 reserved pins as well as 16 pins dedicated to user IO from each of the processor slots as well as two channels served by the dual-dual star VXS fabric switch.
VXS Processor Mesh chassis and backplanes are available from Elma Bustronic Corporation today and are priced beginning at $ 5,000 depending upon the configuration. The Callisto switch card is available today and is priced starting at $ 20,000.