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Modular Open Systems Approach (MOSA) Solutions

NAI’s Modular Open Systems Approach (MOSA) solutions provide customers with pre-configured, pre-validated, rugged military embedded solutions that save development time and cost while reducing program risk. These Flexible, Adaptable, Configurable, Modular and Expandable Systems Eliminate custom designs and redesigns by taking advantage of NAI’s Configurable Open Systems Architecture (COSA). NAI's full suite of MOSA Solutions are ARM® Cortex®-A53 processor-based and are ruggedized to withstand -40° C to +71° C and qualified to MIL-STD-1275D & MIL-STD-704A with 50 ms holdup (VITA 62 power supply); MIL-STD-461F and MIL-STD-810G.

NAI MOSA Solutions

NAI's Modular Open Systems Approach (MOSA) Solutions Offer the Following Benefits:

  • Flexible
  • Adaptable
  • Configurable
  • Modular
  • Expandable
  • Eliminate custom designs

Looking a standard listing of our COTS Nano and Sensor Interface Units? View all Rugged COTS Systems.

Browse all Configurable Open Systems Architecture™ (COSA®) product category pages:

Remote Interface Units (RIU): Remote Interface Units (RIUs) are designed for remote locations and communicate with higher-level computing systems such as Flight Control Computers (FCC) and Mission Computers (MC), gathering, analyzing and sending data throughout the platform. 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 RIU 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.

Nano Interface Unit Model NIU2A
SIU32S-RIUVARM-01
  • Processor Xilinx UltraScale+ SBC with Quad Core ARM Cortex -A53
  • Speed N/A
  • I/O & Communications 4 x MIL-STD-1553 (FTC); 12 x ARINC-429/575 Channels (AR1); 8 x Programmable RS-232/422/485 Serial Channels (SC3); 8 x Programmable RTD or Thermocouple measurement (TR1); 24 x Enhanced Programmable Discrete I/O Channels (DT4); 16 x ±100 VDC A/D Channels (ADF)
  • OS VxWorks 6.9 RTOS and PetaLinux

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Nano Interface Unit Model NIU2A
SIU34-RIUVARM-01
  • Processor Xilinx UltraScale+ SBC with Quad Core ARM Cortex -A53
  • Speed N/A
  • I/O & Communication 2 x MIL-STD-1553 & 8 x ARINC-429 Tx/Rx (CM5); 8 x RS-232/422/485 Serial Channels (SC3); 8 x CANBus A/B 2.0/CAN-FD/ARINC-825 (CB8); 8 x Programmable RTD or Thermocouple measurement (TR1); 8 x ±40 VDC 100 mA Digital to Analog Channels (DA3); 2 x AC Reference Excitation (AC2); 4 x Strain Gage Measurement (SG1); 8 x Variable Reluctance/Pulse Counter Measurement Channels (VR1); 48 x Discrete Input Channels and 48 Programmable Discrete I/O Channels (68DT1)
  • OS VxWorks 6.9 RTOS and PetaLinux
  • Weight / lbs < 15.1 (fully populated)
  • Volume (in3) 316

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Nano Interface Unit Model NIU2A
SIU36-RIUVARM-01
  • Processor Xilinx UltraScale+ SBC with Quad Core ARM Cortex -A53
  • Speed N/A
  • I/O & Communications 2 x MIL-STD-1553 & 8 x ARINC-429 Tx/Rx; 8 x RS-232/422/485 Serial Channels; 8 x CANBus A/B 2.0/CAN-FD/ARINC-825; 8 x Programmable RTD or Thermocouple measurement; 16 x ±100 VDC A/D Channels; 8 x ±40 VDC 100 mA Digital to Analog Channels; 2 x AC Reference Excitation; 4 x Strain Gage Measurement; 8 x Variable Reluctance/Pulse Counter Measurement Channels; 16 x 10/100/100 Base-T Ethernet Switch; 48 x Discrete Input Channels and 48 Programmable Discrete I/O Channels
  • OS VxWorks 6.9 RTOS and PetaLinux
  • Conduction Cooled Weight / lbs < 21.3 (fully populated)
  • Weight (lbs) < 25
  • Volume 320
  • Convection/Air Cooled Weight / lbs <22.5 (fully populated)

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