• DocumentCode
    1427429
  • Title

    Trunking systems for p.c.m. exchanges

  • Author

    Duerdoth, W.T. ; Hughes, C.J. ; Bond, D.J.

  • Author_Institution
    General Post Office, Research Station, London, UK
  • Volume
    114
  • Issue
    11
  • fYear
    1967
  • fDate
    11/1/1967 12:00:00 AM
  • Firstpage
    1623
  • Lastpage
    1629
  • Abstract
    The introduction of p.c.m. transmission systems is making possible the use of t.d.m. exchanges which switch channels in the digital form. These exchanges need both to switch and to introduce delay in order to give access to all outgoing channels. Space equivalents of the t.d.m. exchanges are developed, and formulas for congestion for the channel-changing units within the exchange are derived. Further work is required before a complete exchange can be analysed.
  • Keywords
    automatic telephone systems; pulse code modulation; telephone exchanges;
  • fLanguage
    English
  • Journal_Title
    Electrical Engineers, Proceedings of the Institution of
  • Publisher
    iet
  • ISSN
    0020-3270
  • Type

    jour

  • DOI
    10.1049/piee.1967.0311
  • Filename
    5250215
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1427429