Atlas Uncoupler Track Wiring | O Gauge Railroading On Line Forum

RWLOGR Forum Member

I have seen diagrams, and directions that say the Atlas Uncoupler gets its common from the outside raill opposite the rail where the screw terminal is located.
Then I saw and read about connecting a wire, with the momentary button switch in line, from the screw terminal, to a transformer.

I want to control all of the Ross Switches, and Atlas Uncouplers, with the B-U controller of my Lionel ZW-C, which I have hooked up in phase with my other transformer, so if I understand correctly, I can use a separate transformer, or section of my ZW-C for the hot wire, while the common is coming from the track via the outside rail.
This would mean that I only need to connect the hot side to my transformer.

Is this a correct understanding?

6/6/217:09 PM

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DanrOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

The real short answer is , yes. As long all of your commons are common.

6/6/217:19 PM

RWLOGR Forum Member

Thanks Dan,

I have all four commons of my ZW-C and the common on my Z-1000 wired, jumpered, together, and all works as it should.

6/6/217:53 PM

romiller49OGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

That’s the joy of common ground. When I’m wiring under the layout any black(common) wire can be used.

6/6/218:07 PM

RWLOGR Forum Member

It does become a very handy fact to be aware of, indeed.

6/6/219:23 PM

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