DCC
DCC is a tad of an aging specification. This unfortunately means that specifications are quite a nightmare to get through. As I am currently building several types of decoders, I need to understand the specification. As a result, I might as well just write everything down here.
Warning
I am developing for a G-scale layout. This means that currents and voltages are higher compared to a H0- or N-scale layout. I'll try to include the relevant voltages etc, but if there is no explicit mention, it will be for G-scale.