Optical Fibre (or Optical Fiber as the north Americans spell it) connections offer faster connections over longer distances than copper network cables.
The UFiber range offers a centrally managed system that is ideal for reticulating fibre within a building or campus.
The 'headend' is the UFiber OLT. This would typically sit in the basement of a multi-story building.
The 'client' devices are the UFiber Nano or Loco devices. These would typically be located in each apartment/floor/office of the building.
The single fibre leaving the OLT is split into multiple separate fibres to each Nano/Loco by using passive optical splitters. These splitters are un-powered.