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Our massively Configurable Open Systems Architecture™ (COSA®) gives you the most modular, agile and rugged COTS portfolio of embedded smart modules, I/O boards, Single Board Computers, Power Supplies and Ruggedized Systems of its kind. All are pre-engineered to work together today and be easily changed, reused or re-purposed down the road. We’ve used FPGAs and SoCs to create smart modules that enable you to rapidly create configurable mission systems – while reducing or eliminating SBC overhead.

COSA meets a wide range of complex and time-critical requirements in a distributed, intelligent, software-driven architecture that allows you to rethink the way you engineer power-critical and I/O-intensive mission systems.

Distributed I/O with Single API Programmability
Optimized SWaP
Elimination of Non-Recurring Engineering Charges

Configurable Open Systems Architecture™

The breadth of available, off-the-shelf functions makes it likely that we can meet your I/O requirements, no matter how intense or precise, better than any other COTS systems supplier and without NRE.

COSA Modules, Boards & Systems

Over 100 high-density, COSA smart modules are available for placement on our intelligent I/O Boards, which can operate as standalone systems. Further, our OpenVPX, VME, cPCI and PCIe boards can be placed into Rugged COSA Systems that range from a single module to high-density systems supporting up to 10 motherboards and 60 smart modules (and virtually everything between).

COSA Software & Processing Advantages

Dedicated FPGAs embedded on our smart modules provide unique software and processing advantages that drive time and cost out of our customer’s design, development and qualification schedules. The programmability, intelligence and self-monitoring capabilities put more I/O capability into the modules themselves so you can reduce the processing load on the SBC and deliver more capabilities at the edges of your applications.

SIU33 Exploded View

Here's How it Works


Just How Configurable Are NAI's COTS Systems?


Smart Function Modules


Max. Slots Per Card


Max. Functions Per Interface Unit

Our COSA® Architecture gives you more than 1.4 Quadrillion possible system configurations...That's 2 million times more than the Earth's population!

NAI's highly Configurable Open Systems Architecture™ (COSA®) enables you to leverage our portfolio of pre-integrated modules, boards, systems and power supplies to quickly and easily meet complex mission processing requirements – today and down the road.

Configurable Systems

Model Dimensions w/ Connectors
(w x h x d)
Weight / lbs.
(Fully populated)
Function Module
Board Slots Board Formats
NIU1A 6.8” x 1.6” x 2.5” < 1.2 1 N/A Integrated System
NIU2A 7.2” x 2.7” x 3.0” < 2.7 2 N/A Integrated System
NIU3A 7.2" x 3.2" x 5.5" < 5.4 3 N/A Integrated System
NIU3E 7.2" x 3.2" x 7.1" < 6 1 N/A Integrated System
SIU31 4.7” x 2.4” x 8.8” < 5.9 3 1 cPCI
SIU32 5.9” x 4.5” x 9.5” < 11.5 6 2 OpenVPX
SIU33 4.7” x 4.8” x 8.8” < 10.6 9 3 cPCI
SIU34 5.7” x 5.8” x 9.4” < 15.1 12 4 OpenVPX
SIU35 7.2” x 5.8” x 9.4” < 16 15 5 cPCI, OpenVPX
SIU36 Conduction Cooled: 9.0“ x 5.0“ x 9.5“
Convection/Air Cooled: 9.0" x 6.4" x 9.5"
Conduction Cooled: < 21.3
Convection/Air Cooled: < 22.5
18 6 OpenVPX

Simply select an enclosure of your choice and NAI will populate it with pre-integrated boards, smart function modules, power supplies and software libraries of your choice. See the possibilities with our most popular systems below.

NAI offers 6 standard COTS configurable systems that NAI can populate with pre-integrated boards, smart function modules, power supplies and software libraries of your choice.

View All Nano Interface Units View All Sensor Interface Units

Application Ready Systems

Designed for a variety of defense and harsh environment mission-critical applications, these pre-configured, processor-based COTS-based computing platforms can be deployed as soon as your application is ready.

  • Data Acquisition Systems
  • Fire Control & Targeting Systems
  • Vehicle Management Systems
  • Integrated Vehicle Health & Monitoring
SIU36 Product Release