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Wiring clarification needed re: Better turnout control by Thomas Hunt

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  • Member since
    August 2011
  • 1 posts
Posted by Raider16 on Saturday, August 20, 2011 4:31 PM

In the August 2011 Model Railroader (Vol. 78, No.8), Pg 59, Fig. 4 & 5, of Tomas Hunt's article on Better Turnout Control, there is a dash line between Switch 'A' and wiring point '4'.  Two related questions:  A.  Beneath - and to the right of - each switch machine symbol are shown wire connection points 2, 3 & 4.  Are these three connection points the Tortoise connector Pin 2, 3 & 4 locations?  B.  Is the other connection point of this dash wire also Pin 8 on the Tortoise wiring connector?

Tags: Tortoise
  • Member since
    January 2007
  • From: Eastern Shore Virginia
  • 3,290 posts
Posted by gandydancer19 on Sunday, August 21, 2011 2:23 PM

Welcome to the Forums.

A.  Beneath - and to the right of - each switch machine symbol are shown wire connection points 2, 3 & 4.  Are these three connection points the Tortoise connector Pin 2, 3 & 4 locations?  

Yes.

B.  Is the other connection point of this dash wire also Pin 8 on the Tortoise wiring connector?

No.  The dashed line indicates a mechanical connection, not a wire.  As in - the motor of the Tortoise moves the No.4 contact switch wiper from pin 2, to pin 3, and back again, depending on the position of the turnout.  There is NO wire connecting pin 4 to pin 8.

Note the dashed line of SW1 going from V+ to V- in fig.4.  This indicates the mechanical connection between the two decks of the rotary switch SW1.

As a general rule, when dashed lines are used in or on an electrical diagram, they indicate a mechanical connection and not an electrical one.

Elmer.

The above is my opinion, from an active and experienced Model Railroader in N scale and HO since 1961.

(Modeling Freelance, Eastern US, HO scale, in 1962, with NCE DCC for locomotive control and a stand alone LocoNet for block detection and signals.) http://waynes-trains.com/ at home, and N scale at the Club.

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