Its not a layout, its a computer…


All the DS-64’s are connected to the Tortoises and relays. Next up, programming in the 30 routes. I am about 3/4 the way through the job and while it takes a great deal of concentration to get it correct, it seems to be going well.


To keep everything organized and clear, I made up these Route Sheets. Each of the 30 routes has a corresponding sheet. I highlight the route on the sheet, and note the turnout settings for that route.

Also included on the sheet are the two crossings that are routed with relays. Each switched frog is identified with a 200 series number. These are set to either “Closed” or “Thrown” to set the frog to the appropriate power. I identified the North and South rails with red and black colours respectively. Each turnout has a unique number.


To keep track of what route information is programmed into each DS-64 I made these sheets. Since some routes require multiple DS-64’s it is easy to loose track of what is where. These sheets will help keep track of all the routes. Some routes require up to 20 turnouts to switch.


All the DS-64’s wired up and in an accessible location for programming. Once all the routes are programmed and tested, they will be mounted under the layout and all the wires trimmed to fit neatly.


The “quad diamond” in the centre of the layout requires special attention. Shown here are the additional latching relays to route power to the 7 switched frogs in the crossing. Each of the 4 routes through the crossing require a different configuration of the frogs. Lots of clicking goes on when the routes are switched.

To make things even more interesting, the tail end of one of the routes is a wye. To keep things working I am using a Hex Frog Juicer to control the reverse section created by the wye. It works 100% reliably. I am quite impressed with these little units.


Here are all the tools required to bring a model of the CNJ Bronx Terminal to life….


On to Next Section….

About the Author:

I'm your host, Tim Warris, a product developer in Port Dover, Ontario. Since March of 2007 I have been documenting the construction of the former CNJ Bronx Terminal in HO scale. For my day job, I design track building tools for Fast Tracks, a small company I own and operate. Fast Tracks makes it fast and easy to hand lay your own trackwork. Stop by our website to learn more!

Posted by: warrisr | 06-12-2009 | 10:06 PM
Posted in: 2007 NMRA Train Show - Detroit | LaSalette Freemo Module | Latest Posts | Track Construction | wiring


  1. That last picture of all the tools is missing a bottle of beer — or maybe a bottle of aspirin.

    Comment by Joe — June 13, 2009 @ 1:26 am
  2. I am interested to know what constitutes a route here. How did you arrive at the specific 30 routes you have? To me it is just a jungle of turnouts and an infinite number of possible routes.

    Comment by Lennart Svedberg — June 13, 2009 @ 12:52 pm

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