Original technology preferences were FTTP, Fixed Wireless and Satellite. Other options now include :-
- FTTN – Fibre to the Node – utilises last km of existing copper cable to customer
- FTTC – Fibre to the Curb
- HFC – Hybrid Fibre Coax – utilising existing Foxtel PayTV Coax infrastructure.
Advantages of optical fibre transmission
- Electrically intrinsically safe – can occupy same ducts/conduits as LV & HV power
- Carries highest data rates ; higher than twisted pair and over longer distances
- Very low transmission loss means long distances without boosters/repeaters (eg;150 km using single mode fibre)
- Light weight cable
- Immune to electrical interference from motors, transformers
- Does not attract lightning
- Does not cause ground loops when inter-connecting equipment in different buildings
- Higher security against “taps” than twisted pair.
- Fibre optic transmission:
- non-visible infra-red 850nm (MM), 1300nm (MM), 1310nm (SM), 1490nm(FTTP), 1550nm (SM) & 1625nm (SM Testing)
Multi Mode is used for less than 2kms in customer premises, Single Mode is used in the Telco environment.