[Horizon]

RfoG - fibre optic cables are installed into people's homes replacing the existing coax cables (if installed) then the signals get converted using existing modems and set top boxes.

This is a cheaper method for companies using existing equipment, but still requires lots of street cabinets and heavy maintenance costs.

Xpon - fibre cables are also installed straight into people's homes, but the signal does not get converted and new modems and boxes are needed to deal with the "pure" fibre optic signal coming in.

All new consumer equipment is needed, so is expensive to begin with, but works out cheaper in the long run for companies as far less street cabinets are needed thus saving heaps on maintenance costs.

Or something like that.