'Optical fibre' and 'fibre optic' cables are the same thing, and are usually just called 'Fibre'. This technology provides the backbone for Australia's national and international telecommunications, but can also be connected to individual premises.
Fibre can provide broadband speeds up to 2.5 Gbps, but most customers connected directly with fibre today will initially have less, e.g. 100 Mbps download speeds.
Fibre to the Node
Fibre to the Node (FTTN) uses cables that run from a telephone exchange to a cabinet (node) in a local neighbourhood. Connecting this to your business is achieved using the existing copper wire in the street and into your premises. Typically, an FTTN cabinet serves a few hundred customers in a radius of about 1.5 kilometres. FTTN services provided by the NBN will initially offer speeds of 25 Mbps, but higher speeds will be enabled as the service matures.
Fibre to the Premises
Fibre to the Premises (FTTP) connects directly to your premises; it does not need to use the existing copper wire for 'the last mile'. Most NBN customers who are connected via FTTP will have access speeds of 100 Mbps.