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Nano Interface Unit

Configure with one I/O or communication function module—
Over 100 different modules to choose from

NAI’s NIU1A contains an integrated power supply, one function module slot, and an optional ARM® Cortex®-A9 processor. This small, low-power unit is ideally suited for rugged military, industrial, and commercial applications. It delivers off-the-shelf solutions that accelerate deployment of SWaP-optimized systems — in less time, with NO NRE.

The NIU1A includes BSP and SSK support for Wind River® Linux and VxWorks®, and for Xilinx® PetaLinux (w/optional ARM Processor). In addition, SSKs are supplied with source code and board-specific library I/O APIs to facilitate system integration.

  • 1 intelligent function module
  • 100+ modules to choose from
  • Customer-configurable
  • COSA® architecture
  • Optional ARM® Cortex®-A9 Dual Core 800MHz Processor: 512 MB DDR3L SDRAM, 4 GB SATA II NAND Flash (up to 32 GB option)
  • 2x 10/100/1000 Base-T Ethernet ports or 1x 10/100/1000 Base-T Ethernet port and 1x USB port
  • Wind River® Linux and VxWorks®, and Xilinx® PetaLinux OS support (w/optional ARM processor)
  • 6.80" W x 1.70" H x 2.50" D
  • 1.2 lb. (499 g)
  • 28 VDC input; < 15 W power dissipation
  • MIL-STD-461F, MIL-STD-810G, & MIL-STD-704F
  • Continuous Background Built-In-Test (BIT)
  • VICTORY Interface Services (contact factory)
  • Operating temperature: -40° C to +71° C

Block Diagram

(Click diagram to enlarge)


The NIU1A includes SSKs to support multiple operating systems. In addition, SSKs are supplied with source code and board-specific library I/O APIs to facilitate system integration.

Accelerate Your Time-to-Mission™ With COSA®

NAI’s Configurable Open Systems Architecture™ (COSA®) offers a choice of over 70 smart I/O, communication, and Ethernet switch functions, providing the highest packaging 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. 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 NIU1A? 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 1.5” x 2.5” < 1.2 1 N/A Integrated System
NIU2A 7.0” x 3.0” x 2.5” < 2.75 2 N/A Integrated System
NIU3A 7.23" x 5.51" x 3.18" < 5.9 3 N/A Integrated System
NIU3E 7.2" x 6.6" x 3.0" < 6 1 N/A Integrated System
SIU31 4.71” x 2.35” x 8.71” < 5 3 1 cPCI
9.4” x 5.7” x 3.9” < 11 6 2 OpenVPX
SIU33 4.71” x 4.78” x 8.71” < 10 9 3 cPCI
SIU33V 4.71” x 4.78” x 8.71” < 10 9 3 OpenVPX
SIU34 9.4” x 5.7” x 5.9” < 16 12 4 OpenVPX
SIU35 7.13” x 4.76” x 8.71” < 15 15 5 cPCI, OpenVPX
SIU36 7.13“ x 4.71“ x 8.91“ < 23 18 6 OpenVPX
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