VXS

VMEBus Switched Serial, commonly known as VXS, is an ANSI standard (ANSI/VITA 41) that improves the performance of standard parallel VMEbus by enhancing it to support newer switched serial fabrics. The base specification (ANSI 41) defines all common elements of the standard, while "dot"-specifications (ANSI 41.n) define extensions which use specific serial fabrics (such as PCI Express, RapidIO, StarFabric and InfiniBand) or additional functionality. VXS is backward compatible with VMEBus. It is defined by the VITA (VME International Trade Association) working group.

Specification

In common with other similar standards, VXS comprises a ‘base line’ specification, which defines the basic mechanical and electrical elements of VXS, together with a series of ‘dot level’ specifications, one or more of which must be implemented to create a functional module. The specifications and their current status are as follows:

References

VXS-1

Scientific Development Squadron ONE (VXS-1) is a U.S. Navy military support squadron that conducts numerous single-aircraft deployments around the world in support of a wide range of scientific research projects.

Mission statement

To provide heavy lift aircraft capable of supporting scientific research projects around the world for Naval Research Laboratory, Department of the Navy, U.S. Department of Defense activities, as well as other U.S. government agencies that contribute to Naval Research.

History

Formerly known as Flight Support Detachment, Scientific Development Squadron ONE (VXS-1) was established 13 December 2004, as commissioned by the Office of the Chief of Naval Operations, Notice 5450.

Fleet Operations

Manned by Navy officers, enlisted sailors and government and private civilian personnel, the squadron is responsible for the maintenance and security of three uniquely configured NP-3D Orion turboprop research aircraft, two Beechcraft Super King Air RC-12 aircraft, over 200 unmanned aerial systems and an American Blimp Corporation Lighter-Than-Air (LTA) airship (MZ-3A) transferred to VXS-1, October 2009.