Keywords

Electronic data processing, Telephone, Equipment and supplies

Abstract

This report explains the development of a telephone line multiplexer to be used with a computer based personal paging system. The large geographical area coverage made possible by computer processing results in many calls having to cross telephone tariff boundaries. Since system users cannot be expected to pay long distance charges, dedicated lines which cross tariff boundaries must be leased. Multiplexing applied to those leased lines reduces the cost of data transmission, and is, therefore, justified. The design of the multiplexer proceeds from a specification set which is derived from user response requirements. Fundamentally, the response consists in advising the user, within a reasonable time, that a "page" has been accepted by the system. The specification set is then partitioned into functional blocks which are modeled using flow charts and state diagrams. Logic design follows directly from the models. Production of the multiplexer is followed by field installation. The savings resulting from the multiplexing are considerable.

Notes

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Graduation Date

1973

Advisor

Petrasko, Brian E.

Degree

Master of Science (M.S.)

College

College of Engineering

Degree Program

Communication

Format

PDF

Pages

34 p.

Language

English

Rights

Public Domain

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0012245

Subjects

Electronic data processing, Telephone -- Equipment and supplies

Collection (Linked data)

Retrospective Theses and Dissertations

Accessibility Status

Searchable text

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