VNX+ vs OpenVPX

How do you fit modular computing into a system where space, weight and cost are limited? Choosing the right architecture is an important part of the answer.

OpenVPX and VNX+ both support modular embedded systems, but their different footprints create different opportunities. In the video below, Sundance’s Flemming Christensen explores how VNX+ compares with OpenVPX, from smaller hardware and connector costs to industrial applications and edge computing.

Watch: Five Differences Between OpenVPX and VNX+

1. A smaller footprint

Size is one of the clearest differences between the two architectures. OpenVPX uses the established 3U and 6U formats, while VNX+ brings modular computing into a smaller physical footprint.

In the video, Flemming discusses how a compact VNX+ system can combine several specialised boards in a small enclosure. This creates opportunities for applications where the available space makes a larger system impractical.

2. Opportunities to reduce cost

Flemming highlights connector choice as one area where VNX+ can offer a cost advantage over OpenVPX.

Combined with its smaller hardware footprint, this creates potential for more affordable modular systems. The final cost will depend on the processing, interfaces, cooling and qualification requirements of each design, but affordability is an important part of the opportunity discussed in the video.

3. Modularity on a smaller scale

A smaller system still needs room to adapt.

VNX+ allows designers to combine modules for different functions within a compact architecture. Flemming describes the potential to integrate multiple boards into a small system, bringing together the capabilities required for a particular application.

The appeal is flexibility: building around the functions the application needs while keeping the overall package small.

4. Potential beyond defence

The discussion also looks at opportunities for VNX+ in industrial applications.

Compact dimensions and the potential for lower costs could help broaden the use of rugged modular computing. Flemming points to the possibility of higher-volume applications as the ecosystem develops, extending its reach into markets where space and budget are especially important.

These opportunities will depend on the availability of suitable modules and the requirements of the end application.

5. Different roles within a system

Flemming describes OpenVPX in the context of larger installations, including computing systems within vehicles and aircraft. VNX+ offers an approach for smaller equipment and processing closer to the edge.

Both are embedded computing architectures. The practical distinction is the scale of the system and where the processing needs to happen.

Which architecture fits your application?

The choice starts with your requirements: available space, power, cooling, processing performance, interfaces and cost.

OpenVPX provides an established approach for larger modular systems, while VNX+ creates opportunities to bring modular computing into more compact applications.

Watch the video above for Flemming’s perspective on the differences and the opportunities ahead.