The Union Pacific decided that its voltage/current transition systems have been too unreliable and complex in the past. Therefore the Genisco transition programmer was developed as a module-type transition system. The programmer essentially consists of a solid state electronic unit that mounts in the locomotive's electrical cabinet and an axle-transducer assembly that is mounted on any one of the locomotive's axles. The actual wheel speed of the locomotive is converted to an electrical signal that is amplified and filtered for use in binary circuits. The programmer's binary counter produces a signal for each transition relay that is to be actuated according to speed a special fault detector constantly monitors the performance of the programmer as well as the locomotive. To determine which relays are activated personnel in the locomotive cab can consult indicator lights on the face of the electronic unit housing.

  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    P.O. Box 350
    Bristol, CT  United States  06010
  • Publication Date: 1972-10

Media Info

  • Features: Figures; Photos;
  • Pagination: 4 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00041159
  • Record Type: Publication
  • Source Agency: Railway Locomotives and Cars
  • Files: TRIS
  • Created Date: Apr 2 1973 12:00AM