Use one button to control multiple switches or macros on your NCE DCC system. You can have up to 30 pushbuttons, toggle switches, block detectors,etc. Can be connected for control of turnouts, signals and other devices. Easy programming, just plug in a Pro Cab or a Powercab. Simple hook up, one Cab Bus connection and 2 wires for each pushbutton or other input device. Can be used to perform simple automatic train control and other layout automation tasks. Requires the use of Normally Open (NO) momentary buttons or toggle switches.