MULTIPLEXING CAN REDUCE ON-TRAIN CABLING

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:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03735346
• Corporate Authors:

  IPC Transport Press, Limited

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

Media Info

• Features: Figures; Photos;
• Pagination: p. 1066
• Serial:
  • Railway Gazette International
  • Volume: 136
  • Issue Number: 12
  • Publisher: DVV Media Group
  • ISSN: 0373-5346
  • Serial URL: http://www.railwaygazette.com/about-us.html

Subject/Index Terms

• TRT Terms: Cables; Diagnostic tests; Electric circuits; Monitoring; Multiple unit cars; Multiplexing
• Identifier Terms: London Transport
• Uncontrolled Terms: Diagnostics
• Old TRIS Terms: Circuit design; Trainlines
• Subject Areas: Public Transportation; Vehicles and Equipment;

Filing Info

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