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Proceedings Paper

Boeing's STAR-FODB test results
Author(s): Martin E. Fritz; Michael de la Chapelle; Arthur W. Van Ausdal
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Paper Abstract

Boeing has successfully concluded a 2 1/2 year, two phase developmental contract for the STAR-Fiber Optic Data Bus (FODB) that is intended for future space-based applications. The first phase included system analysis, trade studies, behavior modeling, and architecture and protocal selection. During this phase we selected AS4074 Linear Token Passing Bus (LTPB) protocol operating at 200 Mbps, along with the passive, star-coupled fiber media. The second phase involved design, build, integration, and performance and environmental test of brassboard hardware. The resulting brassboard hardware successfully passed performance testing, providing 200 Mbps operation with a 32 X 32 star-coupled medium. This hardware is suitable for a spaceflight experiment to validate ground testing and analysis and to demonstrate performace in the intended environment. The fiber bus interface unit (FBIU) is a multichip module containing transceiver, protocol, and data formatting chips, buffer memory, and a station management controller. The FBIU has been designed for low power, high reliability, and radiation tolerance. Nine FBIUs were built and integrated with the fiber optic physical layer consisting of the fiber cable plant (FCP) and star coupler assembly (SCA). Performance and environmental testing, including radiation exposure, was performed on selected FBIUs and the physical layer. The integrated system was demonstrated with a full motion color video image transfer across the bus while simultaneously performing utility functions with a fiber bus control module (FBCM) over a telemetry and control (T&C) bus, in this case AS1773.

Paper Details

Date Published: 30 May 1995
PDF: 10 pages
Proc. SPIE 2482, Photonics for Space Environments III, (30 May 1995);
Show Author Affiliations
Martin E. Fritz, Boeing Defense & Space Group (United States)
Michael de la Chapelle, Boeing Defense & Space Group (United States)
Arthur W. Van Ausdal, Boeing Defense & Space Group (United States)

Published in SPIE Proceedings Vol. 2482:
Photonics for Space Environments III
Edward W. Taylor, Editor(s)

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