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Actuator Interface Units (AIU): Actuator Interface Units (AIU) systems serve as a focal point in tying a wide variety of sensors together that indicate temperature, flow, level or pressure. These Modular Open Systems Approach (MOSA) systems feature different analog and digital input and output modules that can be used with a wide range of function types including AC excitation, LVDT, variable reluctance, thermocouples, and RTDs. NAI’s rugged AIU systems offer a DO-178C & DO-254 Certifiable solution and are ruggedized to withstand -40° C to +71° C and qualified to MIL-STD-1275D & MIL-STD-704A with 50 ms holdup (power supply); MIL-STD-461F & MIL-STD-810G.
SIU34-AIUVARM-01 is a Modular Open Systems Approach (MOSA) DO-178C & DO-254 Certifiable Actuator Interface Units (AIU) with low power high performance OpenVPX Xilinx UltraScale+ SBC with Quad Core ARM Cortex -A53, 8 GB DDR4 SDRAM, 32 GB SATA Flash, 2 x 10/100/1000Base-T Ethernet, USB 3.0, FIPS-140-3 Level 3 Cyber Security, and Single Event Upset support.
Configured to support dual or tri-redundancy using Serial CCDL or ARINC-429/575 Interfaces. Options for TSN, TTE, AFDX or ARINC664p7 redundancy are also available.
The SIU34-AIUVARM-01 is ideally suited to support several platform flight control systems including fixed-wing aircraft, rotary aircraft, eVTOL and rocket systems. The SIU34-AIUVARM-01 takes advantage of NAI’s COSA Architecture: a flexible, adaptable, configurable, modular and expandable solution that offers an almost infinite number of configurations while eliminating hardware and software NRE redesign. Certifiable RTOS support includes DDC-I Deos 653 and Wind River VxWorks HVP.
For more than 50 years, Integrys has been the industry leader in selecting and evaluating rugged and embedded computers, imaging and video technology and engineering solutions.
Need more or less configurations than the SIU34-AIUVARM-01? 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.
|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||7.2″ x 5.65″ x 3.25″||< 5.4||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|