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VDSL2 (Very High Speed Digital Subscriber Line 2) is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for POTS services. It can be deployed from central offices, from fibre-fed cabinets located near the customer premises, or within buildings. DSL redirects here. ...
The International Telecommunication Union (ITU; French: Union internationale des télécommunications, Spanish: Unión Internacional de Telecomunicaciones) is an international organization established to standardize and regulate international radio and telecommunications. ...
Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. ...
ANSI T1. ...
In telecommunications, ITU G.992. ...
ADSL in Australia started off as ITU G.992. ...
ITU G.992. ...
This is an ITU (International Telecommunication Union) standard, also referred to as, ADSL2. ...
Annex J is an specification in ITU-T recommendations G.992. ...
ITU G.992. ...
ITU G.992. ...
This is an ITU (International Telecommunication Union) standard, also referred to as READSL2+. This extends the capability of basic ADSL by doubling the number of downstream bits. ...
This is an ITU (International Telecommunication Union) standard, also referred to as ADSL2+M. This extends the capability of basic ADSL2 by doubling the number of upstream bits. ...
High bit rate Digital Subscriber Line (HDSL) was the first DSL technology that uses a higher frequency spectrum of copper, twisted pair cables. ...
ITU G.991. ...
HDSL2 is the 2nd generation of HDSL. Categories: | | ...
ISDN Digital Subscriber Line (IDSL) transmits data digitally (rather than analog) on a regular twisted pair copper telephone line, across existing ISDN lines, at a rate of 144 kbit/s, slightly higher than a bonded dual channel ISDN connection at 128kbit/s. ...
There are very few or no other articles that link to this one. ...
Power line communication (PLC), also called Mains Communication or Power Line Telecoms (PLT) or Powerband, is a term describing several different systems for using power distribution wires for simultaneous distribution of data. ...
Rate-adaptive DSL (RADSL) is a variation of ADSL technology. ...
Symmetric Digital Subscriber Line (SDSL) is a Digital Subscriber Line (DSL) variant with E1-like data rates (72 to 2320 kbit/s). ...
Symmetric high-speed digital subscriber line (SHDSL) is a telecommunications technology for Digital Subscriber Line (DSL) subscriber lines. ...
Symmetric high-speed digital subscriber line (SHDSL) is a telecommunications technology for Digital Subscriber Line (DSL) subscriber lines. ...
The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ...
VDSL or VHDSL (Very High Speed DSL) is a DSL technology providing faster data transmission over a single twisted pair of copper wires. ...
ITU G.993. ...
ITU G.993. ...
Plain old telephone service, or POTS, are the services available from analogue telephones prior to the introduction of electronic telephone exchanges into the public switched telephone network. ...
An electrical enclosure is a cabinet for electrical equipment to protect the contents from the environment, mount switches, knobs and displays and to prevent electrical shock. ...
VDSL2 is the newest and most advanced standard of DSL broadband wireline communications. Designed to support the wide deployment of Triple Play services such as voice, video, data, high definition television (HDTV) and interactive gaming, VDSL2 enables operators and carriers to gradually, flexibly, and cost efficiently upgrade existing xDSL-infrastructure. DSL redirects here. ...
In telecommunications, the Triple Play service is a marketing term for the provisioning of the three services: high-speed Internet, television (Video on Demand or regular broadcasts) and telephone service over a single broadband connection. ...
It has been standardized as ITU G.993.2. ITU G.993. ...
ITU-T G.993.2 (VDSL2) is an enhancement to G.993.1 (VDSL) that permits the transmission of asymmetric and symmetric (Full-Duplex) aggregate data rates up to 200 Mbit/s on twisted pairs using a bandwidth up to 30 MHz. It has been suggested that VDSL2 be merged into this article or section. ...
VDSL2 deteriorates quickly from a theoretical maximum of 250 Mbit/s at 'source' to 100 Mbit/s at 0.5 km (1640 ft) and 50 Mbit/s at 1 km (3280 ft), but degrades at a much slower rate from there, and still outperforms VDSL. Starting from 1.6 km (1 mile) its performance is equal to ADSL2+. It has been suggested that VDSL2 be merged into this article or section. ...
TU G.992. ...
ADSL-like long reach performance is one of the key advantages of VDSL2. LR-VDSL2 enabled systems are capable of supporting speeds of around 1-4 Mbit/s (downstream) over distances of 4 to 5 km (2 ½ to 3 miles), gradually increasing the bit rate up to symmetric 100 Mbit/s as loop-length shortens. This means that VDSL2-based systems, unlike VDSL1 systems, are not limited to short local loops or MTU/MDUs only, but can also be used for medium range applications. In telecommunications, the local loop is the wiring between the central office (telephone exchange in British English) and the customers premises demarcation point. ...
Profiles
VDSL2 is quite a complex protocol. The standard defines a wide range of profiles that can be used in different VDSL deployment architectures; in the central office, in the cabinet or in the building for example. | Profil | Bandwidth (MHz) | Number of carriers | Carrier bandwidth (kHz) | Power (dBm) | Max. Throughput (Mbit/s, symmetric) | | 8a | 8,832 | 2048 | 4,3125 | +17,5 | 50 | | 8b | 8,832 | 2048 | 4,3125 | +20,5 | 50 | | 8c | 8,5 | 1972 | 4,3125 | +11,5 | 50 | | 8d | 8,832 | 2048 | 4,3125 | +14,5 | 50 | | 12a | 12 | 2783 | 4,3125 | +14,5 | 68 | | 12b | 12 | 2783 | 4,3125 | +14,5 | 68 | | 17a | 17,664 | 4096 | 4,3125 | +14,5 | 100 | | 30a | 30 | 3479 | 8,625 | +14,5 | 100 | Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. ...
This article is about the SI unit of frequency. ...
For other uses, see Decibel (disambiguation). ...
In communication networks, throughput is the amount of digital data per time unit that is delivered over a physical or logical link, or that is passing through a certain network node. ...
Deployment
Europe In Belgium, Belgacom announced it will provide HDTV services (20Mbps) using VDSL2 to 60% of the households by Spring 2008. Belgacom is rolling out Alcatel-Lucent VDSL2 equipment in over 11,000 street cabinets. The Belgacom Group, composed of Belgacom NV/SA and its subsidiaries, is the leading telecommunications company in Belgium. ...
Alcatel Lucent (or Alcatel-Lucent according to some sources) is the name of the new company formed after the merge agreement signed by Alcatel and Lucent Technologies. ...
In Denmark, Cybercity is planning to provide VDSL2 in spring 2007,[1] and TDC is planning to provide VDSL2 from June 1.st 2007,[2]
In Finland, Saunalahti was to provide VDSL2 in December 2006 to small area as a pilot project, but was delayed until further notice due to low firmware satisfaction. Saunalahti is a Finnish mobile phone operator and an internet service provider. ...
In Finland, Päijät-Hämeen Puhelin started providing 100/64 Mbps VDSL2 subscriptions in 2007 Q1 for €69 to €79 a month.
In Finland, Nebula started providing VDSL2 pilot subscriptions during June 2007. Pilot is currently available for quite limited area, but it's probably expanding soon. €149 a month.
In France:
- Club Internet will probably start commercial services in 2006 if the ARCEP (French regulator) allow its usage, France Telecom in 2007.
- Erenis is deploying VDSL1 & VDSL2 at the basement: FTTB
In Germany, T-Home, the landline division of Deutsche Telekom, offers VDSL2 services with download speeds up to 50 Mbit/s and upload speeds up to 10 Mbit/s based on FTTC. It is used to provide Triple play services. The service started in late 2006 and is offered in 11 cities on a regular basis. There will be a deployment of 15 further cities to the end of 2007. Headquarters in Darmstadt T-Online, a subsidiary of the Deutsche Telekom, is the biggest internet service provider in Germany. ...
France Télécom is the main telecommunication company in France. ...
// Fiber to the premises (FTTP) is a form of fiber-optic communication delivery in which an optical fiber is run directly onto the customers premises. ...
DTAG corporate headquarters, Bonn Deutsche Telekom AG (ISIN: DE0005557508, FWB: DTE, NYSE: DT, LSE: DEU, TYO: 9496) (English translation: German Telecom) (abbreviated DTAG) is a telecommunications company headquartered in Bonn, Germany. ...
Fiber To The Curb (FTTC) refers to a telecomunications system based on fiber-optic cables run to a platform that serves several customers. ...
In telecommunications, the Triple Play service is a marketing term for the provisioning of the three services: high-speed Internet, television (Video on Demand or regular broadcasts) and telephone service over a single broadband connection. ...
In Hungary, T-Online is planning to provide VDSL2 in 2007. Headquarters in Darmstadt T-Online, a subsidiary of the Deutsche Telekom, is the biggest internet service provider in Germany. ...
In Italy, Telecom Italia is planning to provide VDSL2 in Q4 2007. Azienda Sanitaria Locale 3 "Genovese" is doing a trial of Versatek VX-VER160 in campus networks. Telecom Italia is formerly a partially state-owned Italian telco. ...
In Republic of Ireland, eircom announced their plan to start providing VDSL2 within the year 2007. However there is not yet any firm date for any deployment as of November 2007. eircom Group plc is the largest telecommunications operator in the Republic of Ireland. ...
In The Netherlands, KPN is planning VDSL2 test starting in Q4 2006. KPN (in full Koninklijke KPN N.V., Royal KPN NV) (NYSE: KPN) is a Dutch fixed-line and mobile telecommunications company, including both 2G and 3G mobile operations. ...
In Portugal, Clix (ISP) and Portugal Telecom is planning to provide VDSL2 in 2007 end, new technology of PTInovação (PT Labs) called mediaDSLAM can provide 100 Mbit/s in a long range, 4/5 km of main "source", against 0.5 km. Clix is the triple play brand of Portuguese telecommunication operator Sonaecom, majority-owned by the Sonae conglomerate, with a participation of France Télécom. ...
Portugal Telecom (Euronext: PTC, NYSE: PT) is the biggest telecommunications operator in Portugal. ...
In Spain, Jazztel and Telefónica are testing the deployment of VDSL2. They are planning to provide VDSL2 in 2007 or 2008 start. Its a DSL company that operates in Spain offering triple play services (telephone, Internet and television). ...
Telefónica, S.A., (IBEX-35:TEF, Euronext: TEF, NYSE: TEF, LSE: TDE, FWB: TEF, TYO: 9481) is a Spanish telecommunications company. ...
In Slovenia:
- TušTelekom is providing VDSL2 to enterprises.
- Telekom Slovenije is providing VDSL2 since March 5th 2007 to its customers.
- T-2 is providing VDSL2 to customers since May 2007 and it offers speeds up to 60/25 Mbit/s.
In Sweden, Bredbandsbolaget AB are conducting VDSL2 tests as of October, 2005.
In Sweden, Telenor and Telia are negotiating a joint venture to deploy the VDSL2 infrastructure at a cost of 10 billion Swedish kronor. [3]
In Switzerland, Swisscom is deploying VDSL2 and it is now available to customers since July 1st 2007. Since Dec 2006 it is in use for IPTV. Swisscom AG is the leading telephone company in Switzerland. ...
In Turkey, Turkish state-regulated monopoly Turk Telekom is said to begin VDSL2 trials in September 2007 with service planned for 2008 (per article in Turkish daily Hurriyet dated 19 March 2007, p. 10).
In United Kingdom, BT Group trialed VDSL2 during 2006. BT currently plans to launch ADSL2+ from early 2008 as part of its 21CN program to upgrade of its core network. In July 2007, Sir Christopher Bland, the chairman of BT said that BT was considering fibre to the curb and that VDSL2 was a 'likely development going forward' but that no final decisions had yet been taken. BT Group plc (formerly British Telecommunications plc) which trades as BT (pronounced Bee tee) (also previously as British Telecom and is still commonly known as such amongst the general public) is the privatised UK state telecommunications operator. ...
TU G.992. ...
The 21st Century Network (21CN) programme is the network transformation project of the UK telecommunications company BT Group plc. ...
Asia In Malaysia, TM is plan to deploy VDSL2 in mid 2008. Customers will enjoy at lease 50 Mbps speed.
In Singapore, SingTel tied up with Ericsson to deploy a technical trial of VDSL2 starting June 2006. No service plans announced as of yet. SingTel (formerly Singapore Telecoms) is Singapores largest telecommunications company. ...
Ericsson () NASDAQ: ERIC. Founded in 1876, Ericsson is a leading provider of communications networks, related services and handset technology platforms. ...
In Macau, CTM start to test VDSL2 at the 3rd season of 2007. First will be tested in two main buildings in Macau. CTM may mean: Community Trade Mark, the European trademark registration system Computational theory of mind, the view that the human mind is best conceived as a computational system Concepts, Techniques, and Models of Computer Programming, a computer programming textbook Compagnie de Transports au Maroc, a formerly state-owned Moroccan bus...
North America AT&T has deployed Alcatel-Lucent VDSL2 equipment in street cabinets as a part of its U-Verse service and plans to cover nearly 18M homes by the end of 2008. This article is about the current AT&T. For the 1885-2005 company, see American Telephone & Telegraph. ...
Alcatel Lucent (or Alcatel-Lucent according to some sources) is the name of the new company formed after the merge agreement signed by Alcatel and Lucent Technologies. ...
AT&T U-verse is the brand name for a group of services provided over Internet Protocol (IP), including television service, Internet access, and eventually voice telephone service. ...
Sasktel, a crown corporation of the province of Saskatchewan, Canada, has officially announced the deployment of VDSL2. Sasktel is currently testing this technology among 100+ users on a trial basis and hopes to bring it to the mass by the end of 2007. Saskatchewan Telecommunications (SaskTel) is a provincial Crown Corporation operating under the authority of The Saskatchewan Telecommunications Act. ...
This article is about the Canadian province. ...
BellSouth has announced plans to deploy VDSL2 starting in the middle of 2007. In 2008, they plan on having it available to 1.35 million homes. The upgrade will be available to their FTTC based customers. BellSouth Corporation was an American telecommunications holding company based in Atlanta, Georgia. ...
Fiber To The Curb (FTTC) refers to a telecomunications system based on fiber-optic cables run to a platform that serves several customers. ...
Australia EFTel has announced the rollout of VDSL2 hardware to exchanges, to commence early in 2008. EFTel Pty Ltd is a top-10 Internet Service provider of internet related services, in Australia. ...
2008 (MMVIII) will be a leap year starting on Tuesday of the Anno Domini (common) era, in accordance with the Gregorian calendar. ...
New Zealand Orcon has signed a NZ$30 million deal with Siemens to roll out VDSL2 in 2008. Orcon's network will cover Auckland, Christchurch, Wellington, Hastings, Napier, Tauranga, Hamilton, Dunedin, Nelson and New Plymouth with "packages of broadband, video services, internet television and a phone line for $50 to $60 a month[4]". Orcon is the 4th largest ISP in New Zealand. ...
Siemens redirects here. ...
References - ^ Press release
- ^ Press release
- ^ Swedish news article
- ^ NZHerald.co.nz Article
- Ikanos Communications VDSL2 solutions for Central Office, Residential Gateway, CPE Modem, SoHo Gateway
See also A WildBlue Satellite Internet dish. ...
Data Over Cable Service Interface Specifications (DOCSIS) is an international standard developed by cablelabs and contributing companies that include: ARRIS, BigBand Networks, Broadcom, Cisco, Conexant, Correlant, Intel, Motorola, Netgear, Terayon, and Texas Instruments. ...
// Fiber to the premises (FTTP) is a form of fiber-optic communication delivery in which an optical fiber is run directly onto the customers premises. ...
Fiber to the x (FTTX) is a generic term for any network architecture that uses optical fiber to replace all or part of the usual copper loop used for telecommunications. ...
A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32. ...
Uni-DSL (UDSL) is a DSL-technology developed by Texas Instruments which would provide at least 200 Mbit/s[1] in aggregate on the downstream and upstream paths. ...
This is a list of device bandwidths: the channel capacity (or, more informally, bandwidth) of some computer devices employing methods of data transport is listed by bit/s, kilobit/s (kbit/s), megabit/s (Mbit/s), or gigabit/s (Gbit/s) as appropriate and also MB/s or megabytes per...
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