• Types of Broadband

    Types of Broadband

    DSL Broadband

    • Digital Subscriber Line (DSL) is a technology that delivers broadband over your phone line to be used in the home or office.
    • With DSL technology, large volumes of information are sent over a copper cable at rapid speeds.
    • DSL allows you to download web pages, text, graphics, music and video in real time.

    ADSL Broadband

    • Asymmetric Digital Subscriber Line (ADSL) is a technology similar to the DSL technology.
    • With ADSL, information is downloaded more rapidly than it is uploaded.
    • ADSL is particularly useful for homes and businesses as it can download web pages and files at fast speeds.
    • ADSL2 and ADSL2+ are new technologies offered by some providers offering speed up to 24Mbps. One provider offering this service is Be.

    Symmetric Broadband (SDSL)

    • Symmetric broadband (SDSL) is a technology similar to ADSL broadband.
    • SDSL broadband downloads information at the same speed as it uploads information. Whereas ADSL broadband downloads the information faster than it uploads it.
    • This type of broadband requires an extra telephone line.
    • SDSL broadband is particularly suitable for businesses that send large volumes of information.

    Local Loop Unbundling

    • Local Loop Unbundling (LLU) is where ADSL or SDSL broadband technologies are provided without using the British Telecom’s exchange system.
    • This means that LLU providers can offer broadband features at a competitive price.
    • LLU is only available in certain parts of UK. Providers include Bulldog and Be.

    Cable Broadband

    • There are several ways in which broadband can be delivered to your PC, this type of broadband is delivered through a cable.
    • Cable companies also offer television and telephone packages as well as broadband Internet services.
    • Cable companies provide broadband, television or phone packages to about 45% of homes and businesses in the UK.
    • You can only get cable broadband if a company has cabled your street.
    • Cable providers include ntl.

    Satellite Broadband

    • There are several ways in which broadband can be delivered to your PC,PC; this type of broadband is delivered through a satellite.
    • To receive satellite broadband you must have a dish antenna, and can be used almost everywhere in the UK.
    • There are 2 types of satellite services:
    • One-way satellite services download information via satellite and upload information via a telephone or IDSN line.
    • Two-way satellite services download and upload information via satellite. This provides an even higher bandwidth and a faster speed.
    • Satellite transmission may be affected by weather conditions.
    • The cost of installing and running satellite broadband can be quite expensive compared with other types of broadband.
    • Satellite broadband generally has quite high latency (ping times) compared to other broadband, and so is unsuitable for certain types of Internet Access such as online gaming.

    Wireless Broadband

    • Wireless broadband is one of the ways in which broadband can be delivered to your PC.
    • This type of broadband requires an antenna to be installed to get connection to the Internet.
    • Wireless broadband is particularly suitable for distributing information between buildings and for homes where access to ADSL or cable broadband is unavailable.