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download speed of 100Mbps.

One advantage of HFC networks is that

the cable, joints and supporting equipment

have been designed to work at high

frequencies. Thus although internet access

can still be impaired by network and

equipment congestion, the other factors

that impair ADSL services are not present.

NBN

The NBN is Australia’s national open-

access communications network that aims

is to bring high-speed broadband and

telephone services within reach of almost

all Australian premises.

It is being rolled out by nbn (formerly

NBN Co) and operates under federal

legislation, the

National Broadband

Network Companies Act 2011

.

The NBN is intended to replace the

copper cable network and the services

currently provided on it, such as voice,

data, and medical and security alarms. It

uses a variety of technologies to achieve

this goal (mainly fibre, but also HFC, fixed

wireless and satellite, where warranted).

Under the legislation, once NBN

facilities become available to premises,

carriers must use it to provide new fixed-

line services. Furthermore, they must

progressively migrate copper-line services

to it (other than a few exempt services).

It’s not a matter of consumers electing

to use NBN – there will be no choice.

Whether the NBN is provided via

an HFC network or fibre, it is offered

wholesale to your internet service

provider in five ‘speed tiers’. The

download/upload speeds in Mbps are

12/1, 25/5, 25/10, 50/20 and 100/40.

Regardless of technological capability,

100/40Mbps is the fastest anyone can get

from the NBN at present.

The NBN currently uses DOCSIS 3.0, but

it will adopt DOCSIS 3.1 as the standard for

all of its HFC networks some time in 2017.

This technology is capable of much higher

speeds: up to 10Gbps downstream and

1Gbps upstream.

If you are fortunate enough to have

the NBN’s fibre to the home version,

the potential bandwidth is very high:

10Gbps, and much higher in future.

The catch is that, regardless of the

technology, really high-speed access

may not be offered to you. If it is, you

will certainly have to pay for it.

BY

GEORGE

GEORGEVITS

www.generalcable.com.au

GLOBAL NETWORK, LOCAL FOCUS.

General Cable will continue to supply key projects and customers throughout Australia.

As advised in July, our offices in Australia will be closing soon. While our local presence is changing

shape, we will continue to supply key projects and customers throughout the country, drawing on our

global manufacturing network.

Please note our new contact details:

P

1800 124 244

E

projectAU@generalcable.co.nz