Accession Number : ADP000565

Title :   Impedance Irregularities in Telephone Networks,

Corporate Author : DCM INTERNATIONAL CORP SAN LEANDRO CA

Personal Author(s) : Chattler,Leo M.

Report Date : NOV 1982

Pagination or Media Count : 16

Abstract : Telephone companies of the world are having network problems due to impedance mismatch and impedance irregularities in their telephone network. This is caused to a large extent by tolerances on the primary parameters and on unbalances of the circuits in telephone cables. This results in reflections and standing waves which affect voice frequency and carrier frequency telephone transmission. This paper highlights these irregularities and recommends specific values and tolerances which would considerably reduce the impedance mismatch between telephone cables and telephone cables connecting to switching, transmitting and receiving equipment. (Author)

Descriptors :   *Fiber optics transmission lines, *Electric cables, *Electric wire, *Symposia, *Telephone systems, Communications networks, Impedance, Circuits, Voice communications, International

Distribution Statement : APPROVED FOR PUBLIC RELEASE