Broadband: This is a slightly misleading term as there is no such thing as “Broadband” versus Narrowband bandwith. xDSL is the technical acronym. X denotes a family of services within the digital subscriber line portolio.
aDSL – This comes in a variety of formats – aDSL1 is much slower speeds of up to 8Mbps download, as distinct from aDSL2+ which can reach speeds of up to 24Mbps. You will often receive less if you are a significant distance from the Openreach local exchange and those buildings at approximately 5 kilometres will receive the slowest speeds.
The letter x denotes a family of different product types term for Digital Subscriber Line equipments and services, including ADSL. HDSL. IDSL, SDSL and VDSL. xDSL technologies provide bandwidth over the twisted-pair that runs from your phone company’s central office to your office or home. Some xDSL lines are symmetrical (the same bandwidth in both directions). Some xDSL lines (for example, ADSL) are asymmetrical — different bandwidth (and thus speed) in both directions. Many xDSL loops are already installed. xDSL technology is being installed in order to provide faster access for their subscribers to the Internet. See ADSL, G.990, G-Lite, HDSL, IDSL, RADSL, SDSL, Splitter, Splitterless and VDSL for more detailed explanations.
xDSL is the more technical where X denotes the family of products and DSL part refers to digital subscriber lines. The principal types are aDSL and vDSL. aDSL is classfied as being asymmetric where the download speeds are higher (receiving files) than the upload speed (sending files to the internet). vDSl means very high bit rate subscriber line. vDSL comes in two flavours, vDSL1 and vDSL2.
The latter has a maximum download speed of vDSL2 is 80Mbps, but the speed that you ultimately receive is a function of geograpahy (i.e. the distance of your building from the local street cabinet where fibre is installed). The ‘last mile’ (into your building) is still copper which may lead to attenuation of signal. It may be possible to get fibre all the way into your premises, at a slightly higher cost. At the time of writing (March 2018) less than 5% of the Uk can get FTTP (Up to 330Mbps). Please call us on 0344 844 4555 and we perform a check for your business.
DSL technology uses modulation to pack data onto copper wires. Commonly referred to as ‘last-mile’ technology because they are used a connection from an Openreach local exchange.
Both xDSL and ISDN operate over existing copper telephone lines and require short runs to a street cabinet.