Qualitative investigation of cost optimization strategies for industrial-based fiber optic local area networks

dc.contributor.authorReed, Terry Williamen
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:31:37Zen
dc.date.adate2009-03-14en
dc.date.available2014-03-14T21:31:37Zen
dc.date.issued1990en
dc.date.rdate2009-03-14en
dc.date.sdate2009-03-14en
dc.description.abstractThe inherent properties of optical fibers such as small size and weight, EMI/RFI immunity, low attenuation, and large bandwidth provide many advantages over wire conductors that make fiber well-suited for communications. Fiber optic local area networks are particularly suited for use in electrically noisy and space sensitive industrial environments. The diversity of communication requirements that exist in a typical factory situation can be accommodated by the use of a hierarchical communications structure consisting of multiple tiers of fiber optic networks. The lowest tier of this structure would be inexpensive feeder networks used to connect devices such as sensors, actuators, PLCs, robots, and small computers on a factory floor. The emphasis at this level is low cost, but while providing interconnection to higher tiers. An approach which satisfies the lowest tier requirements is a non-shared medium scheme which is link based, consisting of an active star architecture using a roll-call polling access method. The centralized intelligence structure of a master/slave access method allows one to concentrate on the cost optimization of the optical data links. The use of low-cost optical components such as LEDs, PIN diodes, and plastic fiber as well as the potential for a significant amount of common hub equipment provides considerable economies.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 119 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03142009-040401en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03142009-040401/en
dc.identifier.urihttp://hdl.handle.net/10919/41586en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1990.R442.pdfen
dc.relation.isformatofOCLC# 22838967en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1990.R442en
dc.subject.lcshLocal area networks (Computer networks) -- Costsen
dc.titleQualitative investigation of cost optimization strategies for industrial-based fiber optic local area networksen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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