NBN Co, the public-private company tasked with the management and construction of Australia’s National Broadband Network (NBN), has announced that it has selected Visionstream Australia to build the first stage of its transit network. NBN Co said it had inked a contract worth around AUD19 million with the networking service provider for the infrastructure deployment following a tender process. The transit network comprises rings of backbone fibre-optic cables that will connect NBN Co’s central hub to the modern equivalent of telephone exchanges, and commenting on its importance, Dan Flemming, head of construction for NBN Co, noted: ‘The transit network will allow NBN Co to connect the different fibre access nodes to points where the traffic will be transferred to service providers.’ In the first stage of the rollout 149 transit links connecting 168 fibre access nodes (FANs) are expected to be constructed, of which 30 are also points of interconnect (PoI). Looking further forward, 121 PoIs are to be completed over the next three years, by which time the network management layer back to the Network Service Operation Centre (NSOC) is also expected to be completed. Initial first stage sites are currently being made ready, with Visionstream due to commence construction work this month.