NBN Co has laid the first local Fibre optic cable in metropolitan Adelaide as part of the widespread rollout of the National Broadband Network in South Australia.And super-fast broadband is also a step closer in Western Australia after NBN Co installed the first local fibre optic cable fiberyes.com in Mandurah.In Adelaide, distribution fibre linking the Prospect exchange to the local area was installed on the corner of Ballville Street and Prospect Terrace."This fibre haul marks an important step in the rollout of the NBN in Adelaide," NBN Co spokesperson Tony Gibbs said. "The construction shows work is underway to build the network, which will provide super-fast broadband to parts of Adelaide throughout 2014." Traditionally, fibre optic cable enhanced their bandwidths by increasing the number of colours (or wavelengths) in their laser signals. These signals consist of 1s and 0s which are sent down the fibre optic cable where they are processed according to each colour. Thru the 1990s, this method has worked well, however CNY 3.20 it is now reaching its physical limits. Traditionally, fibre optic cable enhanced their bandwidths by increasing the number of colours (or wavelengths) in their laser signals. These signals consist of 1s and 0s which are sent down the fibre optic cable where they are processed according to each colour. Thru the 1990s, this method has worked well, however it is now reaching its physical limits.