The NIU3A is a rugged, versatile, and low-power multifunction I/O and communication system designed for demanding applications in military, industrial, and aerospace environments. Here are some key features and specifications:

Multifunctional Capability: The NIU3A is preconfigured with a variety of I/O functions such as 24-channel programmable Discrete I/O, 8-channel ARINC 429/575, 4-channel CANBus, and 2-channel MIL-STD-1553. It supports up to three smart Configurable Open Systems Architecture™ (COSA®) function modules.

Processing Power: It incorporates Dual or Quad Core ARM Cortex®-A53 processors. This makes it suitable for running customer-specific software applications and managing I/O and communications[3].

Networking Options: It features dual 10/100/1000BASE-T (GbE) Ethernet ports and an RS-232 port for maintenance, diagnostics, or interface configuration.

Cold Plate Requirement: The system must be mounted on a cold plate for thermal management, ensuring that the chassis thermal interface (bottom surface) does not exceed 71°C.

Physical Dimensions and Weight: The NIU3A measures approximately 7.2” x 3.2” x 5.5” and weighs around 5.4 lbs. It is designed to optimize the Size, Weight, and Power (SWaP) characteristics needed for embedded rugged applications.

Memory and Storage:

DDR4 SDRAM: It includes 8 GB of ECC DDR4 memory. NOR Flash: Provides 2 x 2 gigabytes of flash for high-speed operations. FRAM: Contains a 64-kilobit nonvolatile memory for reliable data retention. SATA: Features an onboard Solid-State Drive (SSD) for storage. Peripheral I/O Support: In addition to the Ethernet ports, the NIU3A supports USB 2.0 ports and I2C for additional interfaces and data transfer options.

Maintenance and Safety: The NIU3A does not contain any user-serviceable parts and must be serviced at the factory. It is crucial to handle high voltage components with care.

Software and Configuration Tools: The NIU3A can be interfaced and configured through software tools like the Embedded Soft Panel (ESP), which is used for debugging and module configuration.

These features make the NIU3A ideal for on-board vehicle, marine, and aircraft platforms, providing a robust solution for scalable network-centric operational architectures