Avionics Interface Technologies

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Shared Memory Network Interfaces

AIT's Shared Memory Network (SMN) interface modules provide host systems with an interface to a high speed (2.125 Gbps) optical data network which can be used to share data, in real-time, between multiple distributed systems. The optical, ring-based network allows data to be shared with deterministic timing and at high data rates to support a wide variety of distributed, real-time, hardware-in-the-loop testing and simulation scenarios.

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Key Features

  • Shared Memory Network Diagram2.125 Gbps Optical loop network
  • Single-mode and Multi-mode optical interfaces supported
  • Up to 256 Shared Memory Network nodes supported
  • Up to 200 MByte/sec sustained data rates
  • Maximum 500 nS latency between nodes
  • Network interrupts supported
  • Software Drivers available for Windows (7/8), Linux, LabVIEW Real-Time, and VxWorks

Hardware Options


Shared Memory Network Interface for PCI and PCI-X host system slots.

PCIe-SMN PCI Express Shared Memory Network Interface for PCI Express host system slots. The module is a x4 PCI Express form factor. pcie-smn.png
PXIe-SMN PXI Express Shared Memory Network Interface for PXI Express host system slots. The module is a 3U PXI Express form factor. pxie-smn.png
XMC-SMN XMC Shared Memory Network Interface for XMC host sites. The module provides a x4 PCI Express host interface. xmc-smn.png


Software Support

All AIT Shared Memory Network modules are provided with a full set of software drivers and an intuitive high-level C Application Programmer's Interface including complete documentation and sample application code source. Additionally, software utilities are provided to support field upgrades of the onboard firmware.


  • Hardware-in-the-Loop (HIL)
  • Simulators
  • Automotive Testing
  • Manufacturing and Industrial Controls

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To download the Shared Memory Network Datasheet, click here >>