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


3U OpenVPX Sensor Interface Unit - SIU36

Configure with up to 18 I/O and Communication Function Modules

The SIU36 is a highly configurable rugged system or subsystem ideally suited to support a multitude of Mil-Aero applications that require high-density I/O, communications, Ethernet switching and processing. The SIU36 leverages NAI’s 3U boards 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: Data Acquisition (DAQ), Fire Control & Targeting System (FCTS), Remote Data Concentrator (RDC), Vehicle Management System (VMS) Data Concentrator Unit (DCU), Remote Interface Unit (RIU), Health and Usage Monitoring System (HUMS), Aircraft Interface Unit (AIU)

  • 6x 3U OpenVPX™ Card Slots, Supports up to 18 from 100+ smart function modules
  • Local or External SBC Host I/F capable
  • Processor Options: Freescale PowerPC™ QorIQ® T2080, Intel® Core™ i7 or ARM® Cortex® -A9 & -A53
  • SBC-less remote interface supported via Ethernet connection to your mission computer
  • Configurable I/O Communications and Processing
  • COTS/NDI Sense & Response system
  • Reduced SWaP Footprint
  • Conduction Cooled (CC) or Convection/Air Cooled (AC) Versions
  • COSA® Architecture Supports MOSA, OSA, SOSA™ and the FACE® technical standards
  • Wind River VxWorks®, Xilinx PetaLinux, Microsoft Windows® and DDC-I Deos® OS support
  • Continuous Background Built-In-Test (BIT) (board/function supported as applicable)

  • Operating Temp:: -40ᵒ C to +71ᵒ C @ thermal interface, conduction cooled; Air/convection-cooled version
  • Environmental/EMI: MIL-STD-461*, MIL-STD-810, MIL-STD-1275 & MIL-STD-704
  • Conduction Cooled Dimensions w/ Connectors: 9.0" x 5.0" x 9.5"
  • Conduction Cooled Dimensions: 9” x 9” x 5.1”
  • Convection/Air Cooled Dimensions w/ Connectors: 9.0" x 6.4" x 9.5"
  • Conduction Cooled Weight / lbs: < 13.2 (unpopulated), < 21.3 (fully populated)
  • Convection/Air Cooled Weight / lbs: <14.4 (unpopulated), < 22.5 (fully populated)
  • Additional Weights: + ~2.2 lbs. for PSU + ~1.35 lbs. each additional fully populated board
  • Input: 28 VDC input
  • Power is configuration dependent: 50 W typ. (up to 150 W capable) 50 ms (min.) PSU hold-up option
Block Diagram
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 SIU36? 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