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I would like some help on correctly placing a the dividing point between 2 power districts.  Please look at this drawing.

Block Question v001

Items to take note of:

  • Switch #34 is a Ross Custom Switches O31 LH turnout.
  • Switch #34 is the divider between Power District 4 and Power District 7.  Note track feeder pair #4.1 to its left and track feeder pair #7.12 to its right.

My questions:

  1. If I remember correctly, all 3 legs of a Ross turnout are electrically isolated from each other.  Is that correct?
  2. Do I need a fiber (insulating) center pin at the location shown on the drawing?

It's been a long time since I did this much track wiring and my memory fails me.  I used to know. 

Thanks!

George

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  • Block Question v001
Last edited by G3750
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George,

Standard Ross switches have the 3 center rails isolated from each other.  "Ross ready" switches have a jumper soldered on the bottom of the switch to connect the 3 center rails and another jumper soldered to connect all of the outside rails together.  The jumpers are obvious if you look at the switch from the bottom.

If you have a standard switch, the switch will separate the power districts.  Do not add an insulating pin or you will create a dead section of center rail from the pin to the middle of the switch.

If you have a Ross ready switch, you'll need a pin.  General practice in layout wiring is to feed power to switch rails from the points side of the switch.  This says to not place the insulating pin where you show it, but in the next track joint to the left (closer to the 4.1 feeder).

Last edited by Bob

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