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Multifunction Nano Interface Unit with optional ARM Processor

The NIU2A is a small, rugged, low-power, self-contained, multifunction I/O system. It is powered by an integrated MIL-STD-704F (designed to meet) power supply. The NIU2A can be fitted with up to two smart NAI Configurable Open Systems Architecture™ (COSA®) function modules. The NIU2A is configured to operate as a standalone Ethernet connected Remote Interface Unit (RIU) or optionally configured with access to the ARM Cortex-A9 processors operating as an integrated SBC, fully managing the I/O and a user software application. The NIU2A is configured with standard 10/100/1000Base-T (GbE) Ethernet ports or two optional 1 Gb 850 nm fiber-optic ports. Additionally, there is an RS-232 port for maintenance / diagnostic or configuration interface. Ideally suited for rugged Mil-Aero applications, the NIU2A delivers off-the-shelf solutions that accelerate deployment of SWaP optimized systems in air, land and sea applications.

The NIU2A rugged multifunction I/O platform provides scalable Ethernet or other communications interface linked I/O enabling networks including on-board vehicle, marine and aircraft platforms to field and expand digital network architectures for network-centric operations. With dual function module capability, the NIU2A has the capability of being programmed as an I/O and communications protocol converter. The NIU2A integrates seamlessly within NAI’s COSA® family providing the most modular, agile and rugged COTS portfolio of embedded smart modules, I/O boards, Single Board Computers, Power Supplies and Ruggedized Systems.

  • 2 smart function modules
  • 100+ modules to choose from
  • Customer-configurable
  • COSA® architecture
  • Optional ARM® Cortex®-A9 Dual Core 800MHz Processor: 512 MB DDR3L SDRAM, 32 GB SATA II NAND Flash
  • 2x 10/100/1000 Base-T Ethernet ports
  • 2x 1 Gb Fiber Optic (option) 850 nm
  • Wind River® VxWorks® and Xilinx® PetaLinux OS support (w/optional ARM processor)
  • 7.2" W x 2.7" H x 3.0" D
  • 2.7 lb. (1.22 kg)
  • +28 VDC input / 5-25 W power dissipation (depending upon module configuration and application)
  • Designed to meet: 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

The NIU2A 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 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 NIU2A? 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
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