NIU3A
SWaP Optimized Processing and Multifunction I/O & Communications System
The NIU3A is a small, rugged, low-power, self-contained processing and multifunction I/O system preconfigured with 24-CH programmable Discrete I/O, 8-CH ARINC 429/575, 4-CH CANBus and 2-CH MIL-STD-1553 functions. The NIU3A can also be configured with up to three smart Configurable Open Systems Architecture™ (COSA®) function modules. The NIU3A boasts Dual or Quad Core ARM Cortex®-A53 processors for customer software applications and I/O and communications management. The NIU3A is configured with two 10/100/1000BASE-T (GbE) Ethernet ports and an RS-232 port for maintenance / diagnostic or configuration interface. Ideally suited for rugged on-board vehicle, marine and aircraft platforms, the NIU3A delivers off-the-shelf solutions that accelerate deployment of SWaP-optimized systems in air, land and sea applications.
The NIU3A rugged multifunction I/O and communications platform provides scalable system level solutions to field and expand digital network architectures. A dual capability module slot allows for PCIe modules that offer support for single channel, Tri-Redundant TTE / AFDX (ARINC 664 part 7) / Best Effort Ethernet (2 x 10/100/1000BASE-T) or two nodes with 3 ports/node FireWire (IEEE 1394) communications interface.
Features
- Preconfigured embedded I/O Functions: 24-CH Discrete I/O, 8-CH ARINC 429/575, 4-CH CANBus (programmable for CAN 2.0A/B, ARINC 825 or CAN FD protocol) and 2-CH MIL-STD-1553
- Supports three NAI smart I/O function modules
- Minimized SWaP Footprint
- Xilinx UltraScale+ SoC with Dual/Quad Core ARM® Cortex®-A53 processors
- 28 VDC Input Power Supply (50+ ms Hold-up Option)
- DO-178C & DO-254 DAL A (Contact Factory)
- Cybersecurity & Anti-Tamper (Contact Factory)
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The NIU3A 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.
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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
Need more or less configurations than the NIU3A? 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 Slots |
Board Slots |
Board Formats | SOSA™-Aligned |
|---|---|---|---|---|---|---|
| NIU1A | 6.8" x 1.6" x 2.5" | < 1.2 lbs. | 1 | N/A | Integrated System | N/A |
| NIU2A | 7.2" x 2.7" x 3.0" | < 2.7 lbs. | 2 | N/A | Integrated System | N/A |
| NIU3A | 7.2" x 3.2" x 5.5" | < 5.4 lbs. | 3 | N/A | Integrated System | N/A |
| NIU3E | 7.2" x 3.2" x 7.1" | < 7.7 lbs. | 1 | N/A | Integrated System | N/A |
| SIU31 | 4.7"x 2.4" x 8.8" | < 5.9 lbs. | 3 | 1 | cPCI | N/A |
| SIU32S | Conduction Cooled: 6.0" x 4.6" x 9.5" Convection/Air Cooled: 6.2" x 4.8" x 9.5" |
Conduction Cooled: < 6.6 lbs. Convection/Air Cooled: < 6.9 lbs. |
6 | 2 | OpenVPX | Yes |
| SIU33 | 4.7" x 4.8" x 8.8" | < 10.6 lbs. | 9 | 3 | cPCI | N/A |
| SIU34 | 5.7" x 5.8" x 9.4" | < 15.1 lbs. | 12 | 4 | OpenVPX | N/A |
| SIU34S | Conduction Cooled: 7.8" x 5.1" x 9.5" Convection/Air Cooled: 6.0" x 7.2" x 9.5" |
Conduction Cooled: < 16.8 lbs. Convection/Air Cooled: < 19.8 lbs. |
12 | 4 | OpenVPX | Yes |
| SIU35 | 7.2" x 4.8" x 8.7" | < 16.0 lbs. | 15 | 5 | cPCI | N/A |
| SIU36 | Conduction Cooled: 9.0" x 5.0" x 9.5" Convection/Air Cooled: 9.0" x 6.4" x 9.5" |
Conduction Cooled: < 21.3 Convection/Air Cooled: < 22.5 |
18 | 6 | OpenVPX | N/A |
| SIU36S | Conduction Cooled: 10.0" x 5.1" x 9.5" Convection/Air Cooled: 6.1" x 9.5" x 9.5" |
Conduction Cooled: < 22.5 lbs. Convection/Air Cooled: < 23.1 lbs. |
18 | 6 | OpenVPX | Yes |
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