CIU3 – Embedded Multifunction I/O System

CIU3 – embedded multifunction I/O system with COSA® expansion from North Atlantic Industries (NAI) is a powerful, rugged, and ultra-flexible embedded I/O system designed for mission-critical air, land, and sea platforms. Delivering extensive built-in functionality and support for up to three COSA® smart modules, the CIU3 allows engineers to rapidly configure a high-performance, low-SWaP system tailored to their exact application requirements.

Built around an ARM® Cortex®-A53 processing architecture and equipped with rich communications and I/O interfaces, the CIU3 provides a complete, self-contained solution that accelerates development, reduces integration risk, and simplifies deployment in demanding environments.

CIU3 – Embedded Multifunction I/O System

Range features

A high level overview of what this range offers

  • Extensive preconfigured I/O — Ready out of the box Four serial channels, A/D conversion, discrete I/O, ARINC, CANBus, and MIL-STD-1553 functionality are all included, minimising the need for external boards or additional hardware.

  • High flexibility with COSA® smart module support Up to three configurable COSA® function modules deliver unmatched I/O scalability with 100+ modules available, enabling tailored system configurations with minimal NRE.

  • Powerful ARM® processing platform Integrates a dual-core (optional quad-core) ARM Cortex-A53 processor for user applications, local control, and system management—ideal for edge processing and time-critical tasks.

  • Rich communications interfaces Dual Gigabit Ethernet ports, multiple serial channels, ARINC, CANBus, and MIL-STD-1553 support ensure seamless interoperability with avionics, ground vehicles, naval systems, and industrial networks.

  • Rugged, conduction-cooled design Engineered for harsh environments with a compact, conduction-cooled chassis that maintains reliability across extreme temperature, vibration, and shock profiles.

  • Continuous built-In test (BIT) Automated background diagnostics ensure system health, faster troubleshooting, and high mission reliability—critical for safety-focused applications.

  • SWaP-optimised architecture Small footprint, low power consumption, and a unified I/O platform reduce cabling, integration time, weight, and system complexity.

  • Broad OS support for rapid development Compatible with Xilinx PetaLinux, VxWorks 7.x, and DDC-I Deos™, enabling straightforward integration into new or legacy real-time software architectures.

What’s in this range?

All the variants in the range and a comparison of what they offer

CategorySpecification

Processing

AMD/Xilinx® Zynq® UltraScale+™ SoC

Dual-Core ARM® Cortex-A53 (Quad-Core optional) @ up to 1.2 GHz

Built-In I/O (Standard)

• 4× Serial RS-232/422/485
• 4-channel A/D Converter
• 12-channel Programmable Discrete I/O
• 1× MIL-STD-1553
• 2× CANBus
• 4× ARINC 429/575

Expansion

Up to 3× COSA® smart modules (100+ module types available)

Networking

2× 10/100/1000BASE-T Ethernet

Debug / Maintenance

RS-232 debug port

Software Support

PetaLinux 2023.x, VxWorks® 7.x, DDC-I Deos™ RTOS

Cooling

Conduction-cooled

SWaP Profile

Compact, low-power, rugged SFF design

Special Variants

CIU3P model offers PCIe-only interface modules for Slot 1 (M1)

System Reliability

Continuous Background BIT

Deployment Environments

Airborne, Ground, Naval, Industrial & Harsh Environments

Connector Options

Deployed system connector key configuration available

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