Wednesday, 07 June 2017 05:55

NBN Co trumpets US claim of 1Tbps over copper Featured

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US company ASSIA has raised hopes that it will be possible to achieve speeds of 1Tbps over copper lines of 100 metres, the NBN Co says.

NBN Co's executive manager of corporate media, Tony Brown, said ASSIA was headed by key DSL technologist John Cioffi and that the claim had been made at a broadband conference in Paris last month.

Cioffi hoped he could achieve speeds of 1Tbps over 100 metres of copper, 100Gbps over 300 metres of copper, and even 10Gbps over 500 metres of copper.

The last speed could be one where the real benefit lay for NBN Co, Brown said.

According to Brown, Cioffi told the Paris meeting, “fibre-like speeds of 10-1000s of Gbps are possible by using the previously unexploited waveguide modes of current copper infrastructure. Waveguide-mode use is similar to use of millimetre-wave transmissions in advanced wireless and 5G,”

However, Brown pointed out that Cioffi had cautioned that this new technology would not be available for a number of years, "so we won’t be seeing speeds of up to 1Tbps over 100 metre copper lines for a while at the very least".

But Brown said, "the fact that we might have an emerging technology that could help us deliver faster wholesale speeds over the NBN network in the future in a potentially cost-effective and time-efficient manner is something we should all be excited about".

At the moment, the download speeds available on NBN connections are a maximum of 100Mbps and in many cases these speeds are never achieved.

NBN Co has been circulating stories about technologies that can provide faster download speeds for a while now. The most recent was one that claimed 1Gbps could be achieved over HFC cable.

Reacting to the NBN blog post, Internet Australia chief executive Laurie Patton told iTWire: “This is exactly why we need NBN Co to immediately abandon FttN and move to FttDP/FttC for the remainder of the rollout.

"Even if they do manage to push gigabit speeds over 100 metres of copper that won’t help people whose home or office is a lot further away from the node. In many cases we could be talking half a kilometre or more.

"At least if we get fibre to the driveway, we have the ability to upgrade to full fibre later on or use this new technology, if it eventuates, to deliver very fast broadband to everyone.”


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Sam Varghese

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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