The information processing network comprises data transmission telecommunications lines and nodes where the concentrations and connections specific to the field of information communications are made. Such a network has existed on the SNCF since 1968, and its organisation and operation were the subject of two articles published in the RGCF in March 1971 and November 1972. The authors of this article, who are members of the Information Processing Department's staff, summarise the experience acquired on the subject. They deal first with the structure of the network and then consider in turn its main components, the most important of which is the Message Control Centre connected on one hand to the Computer Centres by the high-speed network and, on the other, to the Concentrators/Distributors by the medium-speed network, which in turn are connected to the Terminals by the low-speed network. The manner in which the newtork is monitored and operated is then described, as well as the characteristics of the traffic handled and the capacity available. In conclusion, the authors state that the results show that the objectives set have been attained and proper provision has been made for necessary developments in the future. An appendix provides ample details of the exchange procedures between the main units.

  • Corporate Authors:

    Societe Nationale des Chemins de Fer Francais

    92 rue Bonaparte
    75 Paris 6e,   France 
  • Authors:
    • Duthoit, J P
    • Petiot, J C
  • Publication Date: 1975-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00125874
  • Record Type: Publication
  • Source Agency: Revue Generale des Chemins de Fer
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM