DocumentCode :
2666411
Title :
An overview of the Fiber-Optic Active Star Coupler program
Author :
Uhlhorn, R.W. ; McDermott, T.A. ; Goldman, P.C.
Author_Institution :
Harris Corp., Melbourne, FL, USA
fYear :
1990
fDate :
21-25 May 1990
Firstpage :
183
Abstract :
The authors address issues surrounding the use of active rather than passive access couplers to provide connectivity for a large number of serial high-speed data bus (HSDB) users. The FOASC units being built will unite Westinghouse VHSIC avionic modular processors (VAMP) developed for the Air Force and incorporating HSDB interfaces designed and fabricated by the Harris Corp. The FOASC program consists of a detail requirements study for various aerospace platforms and HSDB configurations followed by the design, fabrication, characterization and test, and demonstration of FOASC units meeting the established requirements. The authors consider alternative configurations (topologies); bus architecture and specific aircraft issues; installation trade-offs, including power budget analyses; protocol issues, such as initialization behavior in the active star coupler environment; retiming requirements; fault-tolerance and redundancy trade-offs; and operational considerations. The design of the FOASC units includes a significant component development effort making possible a flexible, yet simple, low-power-consumption active star coupler. A test set specifically tailored to fully characterize FOASC performance has also been designed and built on this program. Performance characteristics of the FOASC units and test set are given
Keywords :
aerospace computing; computer architecture; computer interfaces; fault tolerant computing; fibre optics; military computing; military systems; optical couplers; protocols; redundancy; Air Force; Fiber-Optic Active Star Coupler program; Westinghouse VHSIC avionic modular processors; active access coupler; active star coupler environment; aerospace platforms; bus architecture; computer interfaces; fault-tolerance; high speed data bus users; initialization; installation; power budget analyses; protocol; redundancy; serial high-speed data bus; Aerospace electronics; Aerospace testing; Aircraft; Fabrication; Fault tolerance; Optical fiber couplers; Protocols; Redundancy; Topology; Very high speed integrated circuits;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace and Electronics Conference, 1990. NAECON 1990., Proceedings of the IEEE 1990 National
Conference_Location :
Dayton, OH
Type :
conf
DOI :
10.1109/NAECON.1990.112763
Filename :
112763
Link To Document :
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