Techniques used to transmit several controls and indications over a few pairs of wires are being applied by London Transport to multiple-unit trains. Though distances are short, multiplexing not only cuts the number of inter-car and inter-unit jumpers, it also reduces the space and weight of cabling within each car. Two batches of rolling stock have used multiplexing for indications only, and experiments are being carried out with controls also. Lessons learned from 1973 subway cars include the need to separate electronic decoding and processing equipment from the indication panel in the cab, as the failure modes are essentially different.

  • Availability:
  • Corporate Authors:

    IPC Transport Press, Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Authors:
    • Harding, M A
  • Publication Date: 1980-12

Media Info

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Filing Info

  • Accession Number: 00325446
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 6 1982 12:00AM