Small Form Factor, Full-Scale Capability: How VNX+ and QMC Expand I/O for MOSA Systems
Date: Wednesday, May 6, 2026
Time: 2:00 PM (GMT-04:00) Eastern Time - New York
Duration: 60 minutes
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The newly approved VNX+ standard (VITA 90) is extending MOSA-based development into platforms that were previously too constrained for open architectures and commercial off-the-shelf (COTS) solutions. These include Class 2 and 3 uncrewed aerial vehicles (UAVs), launch tube systems, and other space- and weight-limited platforms across air, land, and dismounted applications.
However, SWaP constraints are only part of the challenge. Mission requirements such as radar, signals intelligence (SIGINT), electronic warfare (EW), and battlefield management often demand application-specific I/O that does not align with fixed COTS interfaces.
The QMC I/O mezzanine standard (VITA 93.x) addresses this gap by enabling modular, application tailored I/O expansion within the VNX+ framework, without compromising SWaP requirements.
In this webinar, attendees will gain a clear understanding of how VNX+ and QMC work together, where they fit within MOSA strategies, and how currently available COTS modules can be applied to real-world system designs.
Key Takeaways
• Understand how VNX+ brings MOSA and COTS into SWaP-constrained platforms that previously required custom architectures
• Learn how QMC enables application specific I/O beyond fixed COTS interfaces
• See how VNX+ and QMC combine to support scalable, modular system designs across UAV, EW, and dismounted applications
• Identify available COTS solutions and how to apply these standards to upcoming programs
Mark Littlefield
Director, Systems Products
Elma Electronic
Mark Littlefield is director of systems products for Elma Electronic. He is an active contributor to multiple VITA and SOSA technical working groups, including the SOSA small form factor (SFF) sub-committee, and was co-chair of the VITA 65 OpenVPX working group. He has more than 25 years of experience in embedded computing, where he has held a range of technical and professional roles supporting defense, medical, and commercial applications. Mark holds bachelor's and master’s degrees in control systems engineering from the University of West Florida.
Tim Tews
General Managers
TEWS Technologies
Tim Tews is one of the two general managers at TEWS Technologies. TEWS Technologies has been an active VITA member for well over 30 years and has been a leading contributor to the development of the VITA 90 VNX+ and VITA 93 QMC . TEWS Technologies is the leading manufacturer of QMC modules and carriers, providing the industry’s most comprehensive portfolio.
Together with Jan Zimmermann, Tim successfully managed the company’s succession and is responsible for all aspects of the business, especially its strategy and business development. Tim holds an MBA and master’s in project management from Bond University, Australia.