Neither!
Like all DCC systems, you can choose to power accessories from the track, but it is good practise to use an additional, totally separate power supply. For example, a loco causes a short circuit by running a point set against it. This shorts the controller so power is cut. This means you cannot reset the point as it has no power source.
Rob
Like all DCC systems, you can choose to power accessories from the track, but it is good practise to use an additional, totally separate power supply. For example, a loco causes a short circuit by running a point set against it. This shorts the controller so power is cut. This means you cannot reset the point as it has no power source.
Rob