The principal object of the National Telecommunications Plan (NTP), a railway-owned and maintained telecommunication network, is to provide an automatic extension-to-extension trunk-dialing telephone network between all business centers on the railway, as well as a good base for data-transmission services. The trunk cable network connecting the business centers is installed in lineside routes. It has sufficient bandwidth capacity to serve all telephone traffic as well as for an automatic switched teleprinter network. It also provides for all the expected requirements for low-,medium-and high-speed data transmission for purposes like the total operations processing system (TOPS) and seat reservation systems, etc.

  • Availability:
  • Corporate Authors:

    Institute of Elect Engrs, Publishing Department

    P.O. Box 8, Southgate House
    Stevenage S91 1HG, Heartshire,   England 
  • Authors:
    • Boura, J
  • Publication Date: 1974-5-16

Media Info

  • Pagination: p. 360-363
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00095632
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 24 1976 12:00AM