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Working on another project, and need some clarification on how dwarf signals operate with Atlas switch machines, using the Atlas signal control boards and/or anti-derail boards.  

I assume that when the switch is thrown using remote push-buttons, TMCC/DCS, or anti-derail isolated rail sections that the signals change to match the new alignment of the switch points.  

The question is, if you manually throw the switch, using the sliding physical control on the switch machine, do the signals change?  

IMG_4384_2A

JGL

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JGL
The quick answer is yes, if, you use the card that comes with the dwarf signals.
If you use the Non-Derail Circuit Board(6924), no.
The card that comes with the dwarf signal senses the position of the steel
rod in the switch motor which is connected to the points. So if you move the
points manually, the signal will change colors. The signal connected to
the 6924 board is controlled by a relay on the board, and moving the
points will not affect the signal indication. I'm using both setups on
my layout and discovered this minor inconvenience the "hardway".

Joe

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Ste 6, Mountain Home, AR 72653
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