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More About ADSL

What is ADSL?
Benefits of ADSL
More details of ADSL Technology

What is ADSL?

ADSL is a technology that enables you to get high speed, broadband Internet access down your existing ordinary telephone line, for a fixed monthly cost and with no online charges.

ADSL can deliver the Internet to you at 10, 20, or even up to 40 times faster than a standard modem. Broadband gives you access to some of the best content on the web - including movies, audio, games,and so much more.

Benefits of ADSL
  • High Speed Access
  • No call charges - with your ADSL connection all internet connectivity is included in the flat rate charge. This allows you to control your Internet budget.
  • Permanently connected. This means that you can keep your connection in use 24 hours a day without having to worry about being 'timed-out'. However, if you want to drop the connection yourself, you can.
  • Utilises your existing telephone line, voice calls can still be made even when the Internet is in use
  • Real-time e-mail - as you are permanently connected your email will be received as soon as it has been sent, so no more delays collecting messages.

Over 95% of UK households are now connected to an ADSL enabled exchange. Plans are on target to increase this to 60% by the end of September 2001.

In addition, the introduction of Extended Reach Technology has significantly extended the geographical reach of ADSL around each enabled exchange. Previously, broadband was available only to those customers who lived within 3.5 km of an ADSL enabled exchange. However the introduction of Extended Reach broadband means that customers can now be based up to 5.5 km away.

There are a number of factors that will affect whether or not broadband is currently available on your line:

  • Firstly, you need to check that your local exchange has been ADSL enabled.
  • Secondly, ADSL is distance dependent. Once you have placed your order, your telephone will be subject to a further line test. BT will check that your line supports ADSL before providing service. The line test result is affected by two principal factors: the distance of the end-user from the exchange and line quality.
More details of ADSL Technology

ADSL stands for Asymmetric Digital Subscriber Line. It transforms a twisted copper pair of wires between a local telephone exchange and a customer's telephone socket into a high-speed digital line.

It is called "asymmetric" because it moves data more quickly from exchange to customer than from customer to exchange. This makes it particularly suitable for applications where customers expect to receive more data than they transmit such as use of the World Wide Web, corporate intranets, and reception of digital audio-visual material.

ADSL operates over a normal telephone line. This means that there is no need to dig up any roads to install it.

The ADSL signal is carried by two ADSL modems - one in the end user's premises and one in the local exchange. These ADSL modems are designed to exploit the physical transmission capabilities of the copper line, to achieve the higher data rates.

A 'splitter' (which is a filter), one in the end user's premises and one in the exchange, separates the telephony signal from the ADSL signal. This means that telephone calls can be made at the same time that data is being sent or received (i.e. you can browse the Internet and still make telephone calls).

For other questions...

Email us at info@abelalways.co.uk, or phone 0871 717 8252 for assistance.