Universal module connector

Buitenlust is in contrast to Project Waldberg and De Lage Zij a completely modular layout. Or to be more precise: it is made up of several segments, because they are not standard 0 gauge modules. Several electrical connections have to be made between the segments. Of course you can make your own cables with connectors for that, but I was looking for a standard solution that was practical as well as not too expensive.

The universal module connector uses standard printer or serial computer cables. You can buy these cables everywhere in any length for pretty low prices. The cables have 25 wires, which is well enough to connect the segments of a modular layout. I have special circuit boards made to facilitate connecting the cables. The boards are mounted under the layout, which gives you a rigid point to connect the cables to. Another advantage is that you can now solder the connecting wires to a big strip connector instead of the small pins of the normal 25-pole connector.

The cables have a male connector side and a female connector on the other side. That is why you need two different circuit boards with two different connectors. The connectors can be ordered from Conrad Electronics: 741452 for the male version and 741819 for the female version. Conrad can also supply the cables. Look under computer serial cables and be sure to pick one that has the pins 1:1 connected.

Assembling the boards is a breeze. Just stick the connectors in the designated holes and solder the pins to the board. The strip connector can also be ordered from Conrad as part number 732478. I connected pins 1 and 2 on the boards. They are intended for the central ground of your layout. All return current will flow through it, so it seemed a good idea to use two wires for it. You still have 23 wires left for connecting tracks, lights and other stuff.

Buitenlust uses LocoNet as the central data bus for several digital accessories. I did not want to add extra cables for LocoNet, so I decided to add the option to include LocoNet in the 25-pole cables. You just leave out the last six pins and add a RJ12 connector to the board instead. The RJ12 connector is available from Conrad as part number 716136. Instead of LocoNet, you can also use the connector to patch through a Roco MultiMaus or the Lenz XpressNet.

I am often using the first four wires (3 to 6) for various power supplies, such as track power, power for lights, etc. So I reserved space on the boards to add four LEDs that will light up if the power is connected. These are all options. You don’t have to use them. But I like to think it makes the connector boards pretty universal.

Boards are available from the shop.

2008