• DocumentCode
    1503161
  • Title

    Nation-wide switching of intertoll trunks

  • Author

    Wallman, O. F.

  • Author_Institution
    American Telephone & Telegraph Company, New York, N. Y.
  • Volume
    77
  • Issue
    3
  • fYear
    1958
  • fDate
    3/1/1958 12:00:00 AM
  • Firstpage
    237
  • Lastpage
    237
  • Abstract
    THE NATION-WIDE SWITCHING of intertoll trunks by switching machines instead of manual interconnection at toll switchboards requires many new and improved transmission circuits and equipment arrangements associated with the new switching systems at selected major switching centers. The assurance of satisfactory transmission performance on a high percentage of interconnections requires the establishment of a fundamental switching plan.
  • Keywords
    Integrated circuit interconnections; Manuals; Marine vehicles; Propagation losses; Switches; Switching circuits; Switching systems;
  • fLanguage
    English
  • Journal_Title
    Electrical Engineering
  • Publisher
    ieee
  • ISSN
    0095-9197
  • Type

    jour

  • DOI
    10.1109/EE.1958.6445685
  • Filename
    6445685
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1503161