Accession Number : ADA065744

Title :   Engineering Fundamentals for Base Wire Transmission.

Descriptive Note : Final rept.,


Personal Author(s) : Thapar,H K ; Leon,B J ; Weaver,T H , Jr

PDF Url : ADA065744

Report Date : 31 Oct 1978

Pagination or Media Count : 274

Abstract : The base telephone cable plant on each base represents a substantial investment; it was constructed to accommodate the base telephone system and a limited amount of low-speed data. Recently, however, more demanding requirements for the transmission of high-speed data are being imposed on this cable plant in increasing quantities. In order to accommodate these more demanding requirements, we must make more efficient use of the existing cable plant; i.e., utilize it for wider bandwidths than the nominal 4KHz voice channel. As a first step, this report reviews the engineering fundamentals involved in the transmission of information over base wire paths. It reviews basic transmission fundamentals, transmission of voice information, transmission of digital data, and multiplexing and concentration techniques. (Author)

Descriptors :   *Telephone lines, *Data transmission systems, Data compression, Multiplexing, Analog signals, Analog to digital converters, Digital systems, Signals, Data rate, High rate, Information transfer, Switching circuits, Telephone systems, Communications networks

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE