• DocumentCode
    1238831
  • Title

    High-Capacity PCM Transmission Systems for Toll Networks

  • Author

    Collier, M.E.

  • Author_Institution
    Standard Telecommunication Labs. Ltd.,Harlow,England
  • Volume
    22
  • Issue
    11
  • fYear
    1974
  • fDate
    11/1/1974 12:00:00 AM
  • Firstpage
    1881
  • Lastpage
    1885
  • Abstract
    High-capacity pulse code modulation (PCM) transmission systems have made little impact despite the availability of suitable technology and the rapid growth of low-capacity systems. It is shown that high-capacity systems can now be introduced into toll telephony networks without short-term economic or compatibility disadvantages and with considerable long-term advantages. A 120Mbits/s coaxial cable system compatible with 12-MHz systems is described in outline.
  • Keywords
    Economic analysis; FDM systems; PCM systems; Telephone systems; Bandwidth; Coaxial cables; Gaussian noise; Laboratories; Modulation coding; Phase change materials; Phase locked loops; Pulse modulation; Telephony; Working environment noise;
  • fLanguage
    English
  • Journal_Title
    Communications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0090-6778
  • Type

    jour

  • DOI
    10.1109/TCOM.1974.1092115
  • Filename
    1092115
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1238831