This system is designed to integrate with your snap twin coil 3 wire switch machines, most notably the

• Atlas
• Bachman
• Peco
• Piko
• Marklin,
• Walthers, and
• All 3-wire Snap machines made prior to 1980.

A unique feature designed into this system is that it remembers the direction of the turnout from the last time it was used, even when power has been interrupted.

Another unique feature is that it can be used with either AC or DC power, directly from the turnout power! You can also cascade each controller so that you only need to power one and all are powered. Only one power supply needs to be used as all the other controllers can get their power from that first one, thereby reducing complexity and most importantly costs.

The assembly couldn't be simpler

1. Connect 3 wires from the 3 socket connector on the Dwarvin Snap Controller to the Snap machine switch control unit or to the Solenoid connections on the Turnout- no soldering needed.
2. Add power to the Dwarvin Snap controller either using a 9V power adapter or directly from your AC or DC bus via the 2 socket connector on the right hand side of the unit.
3. Finally, insert the 3 Dwarf Signals into the layout where required and insert the fibers into the Snap Controller.

The whole kit consists of:

• 3 HO Scale Dwarf signals with 2 pairs of ~2ft of fiber each
• 1 3-wire twin coil Turnout Signal Controller unit
• Optional Power Supply
• HO Dwarf signal: 14.9mm tall and 6.7mm wide, stub is 12mm, uses 1mm fiber.

This is especially helpful for operating sessions where it is very useful to see which way the dispatcher has a switch set.

Please note: We offer these dwarf signals in either BLACK or SILVER Housings. Please choose the color you want when ordering.