After recalling the SNCF's present signalling principles for speeds up to 200 km/h (RABIP System: On board repetition of pin-point information), the paper presents the basic specifications and technology of the future system to allow a maximum speed of 300 km/h. This system should qualify for all operational requirements for a least a 15 years period. It is a four carrier frequency system (1,700, 2,000, 2,300, 2,600 Hz), with an electronic audio-frequency track circuit, with no insulating joint, but with an electric separation joint (parallel resonant circuit), transmitting 10-bit continuous information and possibly pin-point information.

Media Info

  • Pagination: p. 176-182

Subject/Index Terms

Filing Info

  • Accession Number: 00131249
  • Record Type: Publication
  • Source Agency: International Union of Railways
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM