Nano Interface Unit - NIU1

Model Embedded COTS Systems NIU1

Nano Interface Unit - NIU1

Please see NIU1A for new designs. 

Configure with one I/O or communication function module—
A variety of modules to choose from

NAI’s NIU1 is a compact, nano-sized subsystem with an integrated power supply and one function module slot. Ideally suited for rugged military, industrial, and commercial applications, this small, low-power subsystem delivers off-the-shelf solutions that accelerate deployment of SWaP-optimized systems.

With the NIU1, preexisting, fully-tested functions are quickly and easily selected to meet system requirements. Each function has dedicated processing, unburdening the system Single Board Computer (SBC) from unnecessary data management overhead. With the dual Gigabit (Gig-E) ports, I/O, communications, measurement, and simulation functions for data acquisition, distribution, and processing applications are easily integrated into a larger system without the need of costly updates. The continuous Background Built-in-Test (BIT) capability provides online health and status monitoring by detecting and reporting on faults.


  • 1 intelligent function module
  • A variety of modules to choose from
  • Dual 10/100/1000Base-T Ethernet-to-Intelligent I/O interface and communication
  • Power over Ethernet (PoE) support [IEEE 802.3at and 802.3af Powered Device (PD) application compliant]
  • 3 mounting options
  • 1.5" H x 1.6" D x 6.5" L
  • 16 oz. (454 g.)
  • +28 VDC input nominal (typical vehicle power w/ 18-36 VDC range)
  • Continuous Background Built-in-Test (BIT) per channel
  • Software Support Kit (SSK) and drivers available
  • Operating temperature: -40° C to +71° C, conduction-cooled

Document DownloadsDate
NIU1 Data Sheet
NIU1 Operations Manual
Complete manual that includes all available function modules.
NIU1 Custom Operations Manual
Abbreviated manual that includes only function modules selected in the part number.
NAI Ethernet Interface for Embedded IO Boards Specification
News ItemsDate
Board and Box Level Systems Face SWaP Design Challenges
Reducing size, weight and power of military systems remains a challenge, especially when shrinking budgets are putting pressure on costs.
Distributed I/O Data and Processing Architectures
Modern military platforms continue to place an ever greater reliance on electronics for their operation.
Intelligent I/O and UUVs
Intelligent I/O eases shifting payload requirements in unmanned underwater vehicles
North Atlantic to support US Navy's SSC program
NAI has received a contract for the delivery of custom-on-standard architecture (COSA) COTS rugged
Q and A with William Forman, President and CEO
"It’s about offering a smarter, faster, more efficient system design that requires complex I/O requirements— that’s where we excel."