Broadband Guides


ADSL2 and ADSL2+ differences explained:
The terms ADSL, ADSL2 and ADSL2+ might seem a bit irrelevant to broadband users – implying technical complexity. This is not really the case though – as with 3G and 4G, they simply refer to technological advances that underpin different broadband offerings.

As with many developments in broadband, the advances that make ADSL2+ possible are mostly based on the different software used by providers. There is in fact not much hardware difference in the cables used with the different types of DSL, which mainly run on the BT infrastructure. This software improvement enables speeds up to four times faster than the previous ADSL.

The International Telecommunication Union defines the different standards for DSL as with 3G and 4G. While they define the minimum standards for DSL performance, other factors such as a homes distance to the exchange and other factors have a big impact on the speeds that will be possible in practice.

This distance relates to the DSL Access Multiplexer distance from the home, and this component is what enables providers to provide broadband to multiple homes at high speeds. And with ADSL2 speeds of up to 24Mbps are common.

While fibre and cable broadband allow the fastest speeds available, up to 200Mbps at times, ADSL2 and ADSL2+ offer good alternatives for most. This is even the case when the user might even download a lot of HD movies and games, since ADSL2 will still probably be sufficient. ADSL2 is also more widely available than fibre and cable across the world, as these often require a separate connection aside from the phone line.

And ADSL2 is offered by nearly all providers, although this is slightly limited by geography. It has a high penetration rate applying to the vast majority of broadband users. And providers will be able to tell you right away if you are eligible for an ADSL2 offering. It is worth bearing in mind that to get the fastest speeds from one of these connections there will be often new equipment like modems to purchase.