You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.


3U OpenVPX Sensor Interface Unit

MOSA/SOSA™-aligned Multiprocessing, Video, I/O and Communication System

The SIU32S is a configurable Modular Open Systems Approach (MOSA) rugged system ideally suited to support a wide range of Mil-Aero applications that require processing, video, high-density I/O, communications and Ethernet switching. The SIU32S leverages NAI’s Configurable Open Systems Architecture™ (COSA®) 3U OpenVPX SOSA™-aligned boards, XMC’s and smart function modules to deliver off-the-shelf solutions that accelerate deployment of SWaP-optimized systems in air, land and sea applications.

Versatile & Scalable Rugged Architecture for Demanding Embedded System Applications

Including: Mission Computing, Vehicle Management System (VMS), Actuator Interface Unit (AIU), IO Adapter (IOA), Data Acquisition (DAQ), Fire Control & Targeting System (FCTS), Remote Data Concentrator (RDC), Data Concentrator Unit (DCU), Remote Interface Unit (RIU), Health and Usage Monitoring System (HUMS), Aircraft Interface Unit (AIU).

  • 2x 3U OpenVPX™ Card Slots, Supports up to 6 I/O and/or communication modules
  • 100+ smart function modules to choose from
  • Frame Grabber XMC (VS2)
  • Processor Options: Freescale PowerPC™ QorIQ® T2080, Intel® Core™ i7 or Intel® Xeon® W (Tiger Lake), or ARM® Cortex® -A53 or -A72
  • Configurable I/O Communications and Processing Capabilities
  • Reduced SWaP Footprint
  • Conduction Cooled (CC) and Air Cooled (AC) Versions
  • COSA® Architecture Supports MOSA, OSA, SOSA™ and the FACE® technical standards
  • Operating Systems: Wind River® Helix™ Virtualization Platform, Wind River® Linux, VxWorks®, VxWorks® Cert Edition, DDC-I Deos™ OS, Lynx MOSA.ic, Xilinx PetaLinux, Ubuntu Linux®
  • Continuous Background Built-In-Test (BIT) (board/function supported as applicable)

  • Operating temp: -40 °C to +71 °C @ thermal interface, conduction cooled
  • Environmental/EMI: MILS-STD-461, MIL-STD-810, MIL-STD-1275, MIL-STD-704
  • Conduction Cooled Dimensions: 6.0" x 4.6" x 9.5"
  • Conduction Cooled Weight: < 6.6 lbs.
  • Convection Cooled Dimensions: 6.2" x 4.8" x 9.5" (AC)
  • Convection Cooled Weight: < 6.9 lbs
  • Additional Weights: + ~1.35 lbs. each additional fully populated board
Block Diagram
9/6/2023 10:16:29 AM
Accelerate Your Time-to-Mission™ With COSA®

NAI’s Configurable Open Systems Architecture™ (COSA®) offers a choice of over 100 smart I/O, communication, and Ethernet switch functions, providing the highest package density and greatest flexibility of any multifunction I/O board in the industry. Preexisting, fully-tested functions can be combined quickly and easily in an unlimited number of ways. Choose the ideal platform for your application below. Each I/O function has dedicated processing, unburdening the system Single Board Computer (SBC) from unnecessary data management overhead.

Related COSA® Products
Just How Configurable Are NAI's COTS Systems?

Need more or less configurations than the SIU32S? Choose from NAI's standard COTS configurable systems that you can populate with pre-integrated boards, smart function modules, power supplies and software libraries of your choice.

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" < 7.7 1 N/A Integrated System
SIU31 4.7"x 2.4" x 8.8" < 5.9 3 1 cPCI
SIU32S 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 4.8" x 8.7" < 16.0 15 5 cPCI
SIU36 Conduction Cooled: 9.0" x 5.0" x 9.5"
Convetion/Air Cooled: 9.0" x 6.4" x 9.5"
Conduction Cooled: < 21.3
Convection/Air Cooled: < 22.5
18 6 OpenVPX
Can’t find what you’re looking for?

North Atlantic's resource center is where you will find information on warranty and repairs, details of our Product Lifecycle Management and Configuration Management programs – and much more.

Visit Resource Center