Hi Dio,
This was a 2-rail DCC sound decoder installation, so it will only work on a DCC equipped layout, whether it is a 3-Rail DCC layout (yes, there are a few out there) or a 2-Rail DCC equipped layout.
The actual controller that was used in the making of the video was an NCE (North Coast Engineering) DCC controller but any DCC controller could have been used, i.e. Digitrax, MRC Prodigy. However, MTH DCS and Lionel Legacy controllers could not be used as they are not DCC compatible control systems. They are their own proprietary control systems.
Scott K.
Austin, TX