VITA 90 VNX+ Overview

VNX+ establishes a new benchmark for compact, conduction-cooled modules designed for demanding high-performance embedded computing applications. Building upon the VITA 74 VNX standard, VNX+ is specifically tailored for small form factor systems with improved high speed signaling capabilities. By eliminating airflow paths over the Plug-in Modules (PIMs), it enhances suitability for rugged environments.

The primary objective of VNX+ is to address the robust embedded computing needs of the Command, Control, Computers, Communications, Cyber, Intelligence, Surveillance, and Reconnaissance (C5ISR) sectors. These sectors encompass a wide range of applications, including industrial, aviation, vehicular, naval, space exploration, and wearable technology.

A typical VNX+ system comprises a Backplane, a Power Supply Unit (PSU), a combination of 19mm and/or 13mm VITA 90.0 PIMs, Ancillary Modules, and a system-level I/O Transition Board (IOTB).

Ancillary Modules are typically simple modules that utilize basic communication protocols for interfacing with low-speed devices, rather than the more complex Data, Expansion, and Control Plane interfaces. Ancillary Modules typically connect through the Unique External I/O (UEIO) interface. This standard does not cover the PSU, Ancillary Modules, or IOTB boards.

The VNX+ family of standards includes a series of "dot" standards that define profiles to ensure compatibility across various applications. These profiles are expected to encompass the integration of coaxial and optical interconnect systems, as well as advancements in power conversion and energy storage technologies.

The VITA 90 VNX+ family of standards consists of the following: