Walthers layout control system brings you a low-cost solution for easy turnout control for HO, N, Z, s, And O scale layouts! The system is expandable at any time to grow with your layout, and can be used with DCC- or dc-power - a DCC accessory decoder is integrated into the switch machine. The system uses plug-and-play servo-style wiring with connectors, so no soldering is needed; Two styles of cables are available separately to expand your wiring as needed. User-friendly instructions are included with all items, and drilling templates for easy mounting on your layout or fascia are included as appropriate. Using combinations of the system components, which include a servo-based slow-motion switch machine, power distribution block, LED panel indicator-control pushbutton Switches, add-on system cabling, a 2-amp 12V filtered DC power supply and a three-piece drill set, you can easily build a complete control system.