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Encyclopedia results for Digital subscriber line

Digital subscriber line





Encyclopedia results for Digital subscriber line

  1. Symmetric digital subscriber line

    Refimprove date December 2008 DSL technologies Symmetric Digital Subscriber Line SDSL can have two meanings In the wider sense it is a collection of Internet access technologies based on Digital subscriber line DSL that offer symmetric Bandwidth computing bandwidth Upstream networking upstream and downstream computer science downstream . It is considered the opposite of Asymmetric Digital Subscriber Line ADSL technologies where the upstream bandwidth is lower than the downstream bandwidth. In the narrow sense SDSL is a particular DSL variant that supports data only on a single line and does not support analog calls. SDSL technology SDSL is a rate adaptive Digital Subscriber Line DSL variant with T carrier T1 E carrier E1 like data rates T1 1.544 Data rate units Megabit per second Mbit s , E1 2.048 Mbit s . It runs over one pair of copper wires, with a maximum range of convert 10000 ft m . It cannot .... It is the predecessor of Single Pair High speed Digital Subscriber Line G.SHDSL which was standardized .... ref cite web url http www.itu.int rec T REC G.991.2 en title G.991.2 Single pair high speed digital subscriber line SHDSL transceivers publisher ITU T accessdate 2008 12 04 ref SDSL is often confused with G.SHDSL and High bit rate Digital Subscriber Line HDSL ref cite web url http www.blackbox.co.uk ... publisher Cisco Systems, Inc. accessdate 2008 12 03 ref See also Symmetric High speed Digital Subscriber Line G.SHDSL Digital Subscriber Line DSL Asymmetric Digital Subscriber Line ADSL ISDN List of device bandwidths References Reflist DEFAULTSORT Symmetric Digital Subscriber Line Category Digital Subscriber Line Category ITU T recommendations Compu network stub bs SDSL de Symmetric Digital Subscriber Line es SDSL fr Symmetric Digital Subscriber Line ko SDSL it SDSL nl SDSL no SDSL pl Symmetric Digital Subscriber Line pt SDSL ru SDSL tr SDSL ... performance of a leased line . ref cite web url http www.cisco.com en US docs internetworking ...   more details



  1. ISDN digital subscriber line

    DSL technologies ISDN Digital Subscriber Line IDSL uses Integrated Services Digital Network ISDN based technology to provide a data communication channel across existing copper telephone lines at a rate of 144 kbit s, slightly higher than a bonded dual channel ISDN connection at 128kbit s. The digital transmission bypasses the telephone company s central office equipment that handles analogue signals. IDSL uses the ISDN grade loop without Basic Rate Interface in ISDN transmission mode. The benefits of IDSL over ISDN are that IDSL provides always on connections and transmits data via a data network rather than the carrier s voice network. ref cite press release url http www.cisco.com en US tech tk175 tk349 technologies q and a item09186a00800946d3.shtml title IDSL Frequently Asked Questions date February 26, 2008 publisher Cisco ref IDSL also avoids per call fees by being generally billed at a flat rate. IDSL is not available in all countries. ISDN digital subscriber line IDSL is a cross between ISDN and xDSL. It is like ISDN in that it uses a single wire pair to transmit full duplex data at 128 kbit s and at distances of up to RRD range. Like ISDN, IDSL uses a 2B1Q line code to enable transparent operation through the ISDN U interface. Finally, the user continues to use existing CPE ISDN BRI terminal adapters, bridges, and routers to make the CO connections. The big difference is from the carrier s point of view. Unlike ISDN, IDSL does not connect through the voice switch. A new piece of data communications equipment terminates the IDSL connection and shunts it off to a router or data switch. This is a key feature because the overloading of central office voice switches by data ... ISDN users as an initial market. References references DEFAULTSORT Isdn Digital Subscriber Line Category Digital Subscriber Line Category Integrated Services Digital Network telecomm stub de ISDN Digital Subscriber Line es IDSL fr IDSL it IDSL pl IDSL pt IDSL ru IDSL ...   more details



  1. Asymmetric Digital Subscriber Line

    , hence the antenna. Asymmetric Digital Subscriber Line ADSL is one form of the Digital Subscriber Line ... Interfaces Asymmetric Digital Subscriber Line ADSL Metallic Interface. American National Standards ... exchange the line generally terminates at a Digital Subscriber Line Access Multiplexer DSLAM where ... Subscriber Line Access Multiplexer ADSL loop extender can be used to expand the reach and rate of ADSL services. Low pass filter and ADSL splitter . Symmetric Digital Subscriber Line SDSL Rate Adaptive Digital Subscriber Line RADSL Flat rate Attenuation distortion ADSL max List of device bandwidths Single pair high speed digital subscriber line SHDSL References Reflist External links External ... Asymmetric Digital Subscriber Line Category ITU T recommendations Category Digital Subscriber Line Category ... ca Asymmetric Digital Subscriber Line cs Asymmetric Digital Subscriber Line da Asymmetric Digital Subscriber Line de Asymmetric Digital Subscriber Line et As mmeetriline digitaalne abonendiliin el Asymmetric Digital Subscriber Line es Asymmetric Digital Subscriber Line eo ADSL eu ADSL fa fr Asymmetric Digital Subscriber Line gl ADSL ko ADSL hr ADSL id ADSL is Asymmetric Digital Subscriber Line it Asymmetric Digital Subscriber Line he ADSL lv ADSL lb Asymmetric Digital Subscriber Line lmo ADSL hu ADSL mk ... Subscriber Line ja ADSL no Asymmetric Digital Subscriber Line pap ADSL pms ADSL pl Asymmetric Digital Subscriber Line pt Asymmetric Digital Subscriber Line ro ADSL ru ADSL sk Asymmetric Digital Subscriber Line sl ADSL sr sh ADSL su ADSL fi ADSL sv Digital Subscriber Line ADSL tr ADSL uk ADSL ... Subscriber Line Access Multiplexer DSLAM end where the wires from many local loops are close to each ... to purchase higher cost leased line services instead. In this fashion, it segments the digital communications ... line s than a conventional voiceband modem can provide. It does this by utilizing frequencies ...   more details



  1. Rate-Adaptive Digital Subscriber Line

    Unreferenced date December 2008 for RE ADSL2 ITU G.992.3 Annex L DSL technologies Rate Adaptive Digital Subscriber Line RADSL is a variation of Asymmetric Digital Subscriber Line ADSL technology. In RADSL the DSL modem adjusts the upstream networking upstream Bandwidth signal processing bandwidth to create a wider frequency band for the downstream traffic. Using this technique the line is more tolerant of errors caused by Noise physics noise and signal loss. As the frequency is adjusted, the upstream bandwidth may be markedly decreased if there is a large amount of line noise or signal degradation this may reduce the upstream bit rate to as little as 64 kbit s the same speed as a single ISDN B channel . See also Digital subscriber line DSL Single Pair High speed Digital Subscriber Line SHDSL Category Digital Subscriber Line de Asymmetric Digital Subscriber Line Aushandlung fr Rate Adaptive Digital Subscriber Line pl Rate Adaptive Digital Subscriber Line pt RADSL ru RADSL ...   more details



  1. High bit rate digital subscriber line

    Cleanup date August 2010 DSL technologies High bit rate Digital Subscriber Line HDSL was the first DSL technology to use a higher frequency spectrum of copper, twisted pair cables. HDSL was developed in the USA , as a better technology for high speed, synchronous circuits typically used to interconnect local exchange carrier systems, and also to carry high speed corporate data links and voice channels, using Digital Signal 1 T1 lines. HDSL service types include HDSL1, HDSL2 and HDSL4 and are typically ..., called HDSL2 and Symmetric Digital Subscriber Line SDSL . HDSL2 offers the same data rate ... for the entire HDSL family of protocols. See also Asymmetric Digital Subscriber Line Symmetric Digital Subscriber Line Digital Subscriber Line Very high data rate Digital Subscriber Line External links http www.itu.int rec T REC G.991.1 en ITU T Recommendation G.991.1 High bit rate Digital Subscriber Line HDSL transceivers http www.commsdesign.com main 1999 08 9908feat2.htm HDSL Primer http www.thehistoryof.net history of dsl.html History of DSL DEFAULTSORT High Bit Rate Digital Subscriber Line Category Digital Subscriber Line bs HDSL ca High Data Rate Digital Subscriber Line de High Data Rate Digital Subscriber Line es L nea de abonado digital de alta velocidad binaria fr High bit rate Digital Subscriber Line it HDSL he DSL DSL pl High bit rate Digital Subscriber Line pt HDSL ru HDSL sk High Data Rate Digital Subscriber Line ... system. T carrier circuits operate at 1.544 Mbit s . These circuits were originally carried using a line code called Alternate Mark Inversion AMI . Later the line code used was B8ZS . AMI did not have ... the problem were done in the USA, using the line code 2B1Q . This modulation allowed for a 784 ... line code, that reached the maximum bandwidth of 2.0 Mbit s using two pairs of copper. HDSL gave ... slow speed data links to customers. In this case, the line rate is still the full T1 E1 rate, but the customer ...   more details



  1. Multi-rate symmetric digital subscriber line

    Unreferenced stub auto yes date December 2009 DSL technologies MSDSL , or Multi rate Symmetric DSL . is a Digital Subscriber Line technology with a maximum distance of 8,800  m 29,000  ft . It is capable of multiple transfer rates, as set by the Internet service provider , typically based on the service and or price. The maximum speed in both directions is 2 Mbit s. Technology MSDSL is a technology based on 2B1Q transmission with a capacity of 2.32 Mbit s. The bandwidth is split between a full E1 payload 2.048 Mbit s with the remaining bandwidth accommodating up to three voice channels or two ISDN channels. Additional bandwidth is used for management purposes. Transmission over the single pair requires echo cancellation and adaptive equalizers in order to achieve the maximum range at a specific rate. For each user rate, the modem changes the 2B1Q transmission rate, employing different filters and equalizer settings. The modem s adaptive setting is determined during its initial use, and continues constantly during operation. DEFAULTSORT Multi Rate Symmetric Digital Subscriber Line Category Digital Subscriber Line Compu network stub ...   more details



  1. Digital Subscriber Line Access Multiplexer

    service providers, that connects multiple customer Digital Subscriber Line s DSLs to a high speed Internet backbone line using multiplexing techniques. ref citeweb title Digital Subscriber Line Access Multiplexer DSLAM url http www.iec.org online tutorials dslam publisher iec.org accessdate ... Protocol IP DSLAM stands for Internet Protocol Digital Subscriber Line Access Multiplexer . User .... See also commonscat DSLAM Asymmetric Digital Subscriber Line ADSL Broadband Internet access Broadband ... device for CATV ISDN Digital Subscriber Line IDSL Symmetric Digital Subscriber Line SDSL Symmetric High speed Digital Subscriber Line SHDSL Triple play telecommunications References reflist External ... news ?ID 173 Portugal Telecom article in Portuguese Category Multiplexing Category Digital Subscriber Line ca DSLAM cs DSLAM de Digital Subscriber Line Access Multiplexer et DSL p rdusmultiplekser el Digital subscriber line access multiplexer es DSLAM fa fr Digital subscriber line access multiplexer ... pl Digital Subscriber Line Access Multiplexer pt Multiplexador de Acesso a Linha Digital do Assinante ...Diagram was included in the Role section, showing where the DSLAM sits on the path from the DSL subscriber to the Internet. reqdiagram File Outdoor DSLAM.JPG thumb Siemens DSLAM SURPASS hiX 5625 A Digital Subscriber Line Access Multiplexer DSLAM , often pronounced dee slam allows telephone lines to make ... connection rate capability of the subscriber s physical line. This compensation capability also ... Distribution Frame MDF a wiring rack that connects outside subscriber lines with internal lines. It is used ... a device for DSL service. The DSLAM port where the subscriber local loop is connected converts analog ... telephone voice and data line signaling features and the bandwidth monitoring and compensation ... SAI , sometimes in conjunction with a digital loop carrier . DSLAMs are also used by hotels .... Each modem on the aggregation card communicates with a single subscriber s DSL modem . This modem ...   more details



  1. Very-high-bitrate digital subscriber line

    systems very high speed digital subscriber line 2 VDSL2 ITU T G.993.2 approved in February ... digital region RiPWiRE http www.digitalregionbroadband.co.uk DRBSY Ltd http iplan.com.ar IPLAN Networks Argentina DEFAULTSORT Very High Bitrate Digital Subscriber Line Category Digital Subscriber Line cs VDSL de Very High Speed Digital Subscriber Line el Very high bitrate digital subscriber line es VDSL fr Very High Bitrate Digital Subscriber Line ko VDSL id VDSL it VDSL he DSL VDSL hu VDSL nl VDSL ja VDSL pl VDSL pt VDSL ru VDSL simple Very High Bitrate Digital Subscriber Line sk Very High Speed Digital Subscriber Line sl VDSL sr VDSL sv Digital Subscriber Line VDSL tr VDSL zh ... External links http www.itu.int rec T REC G.993.1 en ITU T Recommendation G.993.1 Very high speed digital subscriber line transceivers http www.uk bug.net UK Broadband Usergroup http thinkbroadband.com ... VDSL for Digital TV, Internet and WAN applications over their FTTC Fibre To The Curb network. EFTel .... The theoretical bandwidth right now is 100 100  Mbit s synchronous line downstream upstream ... offerings use an FTTx access line network architecture. Malaysia Alcatel Lucent is also a provider of VDSL .... With speeds of up to 30  Mbit s symmetrical. From March 2009, VDSL2 line cards will be progressively ... marketed as such, a final link between the telephone line and their fiber to the building building ... in the area Sheffield, Rotherham, Doncaster and Barnsley collectively known as Digital Region ...   more details



  1. High bit rate digital subscriber line 2

    DSL technologies Refimprove date July 2007 HDSL2 is the 2nd generation of HDSL with a 6dB Noise Margin, put simply it is another way to provision a T 1 line, only this technology relies on fewer wires two instead of four and therefore costs less to set up. http findarticles.com p articles mi qa3649 is 199910 ai n8856852 Source Category Digital Subscriber Line Internet stub ...   more details



  1. Single-pair high-speed digital subscriber line

    DSL technologies Single Pair High speed Digital Subscriber Line SHDSL is a form of Digital Subscriber Line DSL , a data communications technology that enables faster data transmission over copper telephone line s than a conventional voiceband modem can provide. Compared to ADSL , SHDSL employs frequencies that include those used by traditional Plain old telephone service POTS to provide equal transmit and receive i.e. symmetric data rates. As such, a frequency splitter, or DSL filter microfilter , cannot be used to allow a telephone line to be shared by both an SHDSL service and a POTS service at the same time. Support of symmetric data rates has made SHDSL a popular choice by businesses for PBX , VPN , web hosting and other data services. SHDSL features symmetrical data rates from 192 kbit s to 2,304 kbit s of Payload software payload in 64 kbit s increments for one pair and 384 kbit s to 4,608 kbit s in 128 kbit s increments for two pair applications. The reach varies according to the local loop loop line rate rate and noise conditions more noise or higher rate means decreased reach and may be up to 3,000 meters. The two pair feature may alternatively be used for increased reach applications by keeping the data rate low. Halving the data rate per pair will provide similar speeds ... SDSL in North America. See also Digital Subscriber Line DSL Asymmetric Digital Subscriber Line ADSL Symmetric digital subscriber line External links http www.itu.int rec T REC G.991.2 en ITU T Recommendation G.991.2 Single pair high speed digital subscriber line SHDSL transceivers Category Digital Subscriber Line Category ITU T recommendations http www.proscend.com Proscend SHDSL Total Solution ... fr SHDSL id G.SHDSL it Single Pair High speed Digital Subscriber Line pl Symmetric High speed Digital Subscriber Line pt G.SHDSL ru Single pair High speed Digital Subscriber Line fi SHDSL sv Single Pair High speed Digital Subscriber Line tr SHDSL ...   more details



  1. Very high speed digital subscriber line 2

    DSL technologies Very high speed digital subscriber line 2 VDSL2 is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for plain old telephone service POTS . It can be deployed from central offices, from fibre fed Enclosure electrical cabinet s located near the customer premises, or within buildings. VDSL2 is the newest and most advanced standard of Digital subscriber line DSL broadband wireline communications. Designed to support the wide deployment of triple play telecommunications triple play services such as voice, video, data, high definition television HDTV and interactive gaming, VDSL2 is purported to enable operators and carriers to gradually, flexibly, and cost efficiently upgrade existing xDSL infrastructure. The protocol was standardized as ITU G.993.2 on February 17, 2006. ITU T G.993.2 VDSL2 is an enhancement to G.993.1 VDSL that permits the transmission of asymmetric and symmetric aggregate data rates up to 200  ... to augment its current Asymmetric Digital Subscriber Line 2 Plus ADSL2 capabilities over time ... Very High Speed Digital Subscriber Line 2 Category ITU T recommendations Category Digital Subscriber Line de Very High Speed Digital Subscriber Line VDSL2 et VDSL2 el Very High Speed Digital Subscriber Line 2 es VDSL2 fr VDSL2 it VDSL2 nl VDSL2 pl Very High Speed Digital Subscriber Line 2 pt VDSL2 ru VDSL2 sk Very High Speed Digital Subscriber Line 2 tr VDSL2 ... in Sept 2010. ref http www.telecomwholesale.co.nz maps ref See also Very High Speed Digital Subscriber Line Broadband Internet access DOCSIS Fiber to the x Passive optical network PON List of device ... line to a roadside cabinet. The cabinets will be linked to Virgin Media backhaul via new fibre laid ... are collectively known as Digital Region Ltd an EU government backed project. The network will offer ... of broadband, video services, internet television and a phone line for 50 to 60 a month. ref http ...   more details



  1. Digital Subscriber System No. 2

    Unreferenced stub auto yes date December 2009 Orphan date December 2009 Digital Subscriber Signalling System No.  2 DSS2 , as the successor to DSS1 , is also a digital signalling protocol D channel protocol used for the Broadband Integrated Services Digital Network B ISDN . Category Integrated Services Digital Network Telecomm stub de Digital Subscriber System No. 2 ...   more details



  1. Digital Subscriber System No. 1

    Unreferenced date December 2009 Digital Subscriber Signalling System No.  1 DSS1 , also known as Euro ISDN or E DSS1 European DSS1 , is a digital signalling protocol D channel protocol used for the Integrated Services Digital Network ISDN . The interface is also called NET3 for Basic rate interface BRI and NET5 for Primary rate interface PRI lines. Can also be called CTR4 . It is defined by ITU T I.411 ETS 300 102 . It supports Bearer Capability, Low Level Compatibility and High Level Compatibility, ANI, DNIS and redirected number signaling in both directions. DSS1 is a pan Europe an standard developed by ETSI . In 1989 , 26 network operators from 20 European countries decided to develop this standard to replace earlier national protocols such as FTZ 1 TR 6 or VN3 . DSS1 has been one of the keys to the success of the Integrated Services Digital Network ISDN within European countries as compared to, for example, the United States U.S. . Non European countries using DSS1 include Australia , Brazil , Iran , India , Israel , New Zealand , Pakistan , Peru , Singapore , South Africa , Sri Lanka , Taiwan , Palestine and the United Arab Emirates . The DSS1 protocol knows four different codesets for information elements. Codeset 0 regards to Q.931 , Codeset 5 to the ETSI standard, Codeset 6 for national applications and Codeset 7 for PBX applications. The most common Codeset is 0 Q.931. Category Integrated Services Digital Network de Digital Subscriber System No. 1 ...   more details



  1. Digital delay line

    A digital delay line is a discrete element in digital filter theory, which allows a signal to be delayed by a number of samples. If the delay is an integer multiple of samples digital delay lines are often implemented as circular buffer s. This means that integer delays can be computed very efficiently. The delay by one sample is notated math mathrm z 1 math and delays of math N math samples is notated as math mathrm z N math motivated by the role the z transform plays in describing digital filter structures. If a delay is not an integer of a sample additional filters are applied to account for the fraction of delay different from an integer. Hence delay lines with non integer delay are called fractional delay lines . ref Citation last Laakso first Timo I. author link last2 V lim ki first2 Vesa author2 link last3 Karjalainen first3 Matti last4 Laine first4 Unto K. publication date January 1996 date January 1996 title Splitting the unit delay tools for fractional delay filter design periodical IEEE Signal Processing Magazine edition volume 13 issue 1 pages 30 60 publication place place publisher id isbn doi 10.1109 79.482137 oclc url accessdate 2007 08 22 ref Digital delay lines are widely used building blocks in methods to simulate room acoustics , musical instruments and digital audio effects . ref Citation last Smith first Julius O. author link last2 Lee first2 Nelson author2 link publication date August 12 2007 date August 2007 title Computational Acoustic Modeling with Digital Delay url http ccrma.stanford.edu realsimple Delay Delay lines.html accessdate 2007 08 21 ref Digital waveguide synthesis shows how digital delay lines can be used as sound synthesis methods for various musical instruments such as string instruments and wind instruments . Sources reflist Category Digital signal processing electronics stub es L nea de retardo digital ru ...   more details



  1. Digital line graph

    File USGS logo.png thumb USGS Logo A Digital Line Graph DLG is a Cartography cartographic map feature represented in digital Vector graphics vector form that is distributed by the U.S. Geological Survey USGS . DLGs are collected from USGS maps and are distributed in large , intermediate and small scale with up to nine different categories of features, depending on the scale. They come in optional and Spatial Data Transfer Standard SDTS format and are topological structure topologically structured for use in mapping and geographic information system GIS applications Description File Susq sub.png thumb Map produced with DLG data DLGs are normally derived from USGS maps or USGS map related sources. DLGs are distributed at three different scales large scale, which normally correspond to the USGS 7.5 by 7.5 minute, 1 24,000 and 1 25,000 scale topographic quadrangle map series, 1 63,360 scale for Alaska and 1 30,000 scale for Puerto Rico intermediate scale, which are derived from the USGS 30 by 60 minute, 1 100,000 scale map series and small scale, which are derived from the USGS 1 2,000,000 scale sectional maps of the National Atlas of the United States . Large scale DLGs are usually cast on the Universal Transverse Mercator coordinate system UTM , but are sometimes cast on the State Plane rectangular coordinate system. Intermediate scale DLGs are sold in 30 by 30 minute sections that correspond to the east or west half of the 100K quadrangle map, and each of the 30 minute sections is distributed in four 15 by 15 minute cells and is cast on the UTM coordinate system. Small scale ... factsheets fs07896t.pdf USGS Fact Sheet, Digital Line Graphs ref Sources references External links http eros.usgs.gov products map dlg.php USGS Digital Line Graphs http eros.usgs.gov guides dlg.html ..., are available in DLGs Public Land Survey System PLSS , Boundary line Boundaries BD , Transportation ..., the UTM ground coordinate system, and topological topology linkages contained in line, node and area ...   more details



  1. Multiple Subscriber Number

    Unreferenced stub auto yes date December 2009 Orphan date December 2009 Multiple Subscriber Number a telephone number associated with an ETS 300 Basic rate interface BRI line. Providers of ETS 300 often give you three MSNs with a BRI, although additional MSNs can be purchased. An ISDN terminal will ring provide an alerting signal only when calls are made to the MSN or MSNs entered in that terminal. If a terminal has no MSNs entered it will ring whenever there is a call to any of the MSNs on that BRI. Category Integrated Services Digital Network Telecomm stub nl Multiple Subscriber Number pl MSN ...   more details



  1. Subscriber Loop Carrier

    Subscriber Loop Carrier SLC commonly pronounced slick refers to equipment providing central office like telephone interface functionality. The SLC Remote Terminal RT is typically located in a remote from the telephone company central office area with a high density of telephone service such as a residential neighborhood. Two or four Digital Signal 1 T1 circuits depending on the configuration connect the SLC RT back to the Central Office Terminal COT in the case of a Universal Subscriber Loop Carrier USLC . An Integrated Subscriber Loop Carrier ISLC has its T span s terminating directly in time division switching equipment in the telephone exchange . One system serves up to 96 customers. This configuration is more efficient than the alternative of having separate copper pairs between each service termination point house and the central office . The term comes from the SLC 96 trademark of Western Electric . A Subscriber Loop Carrier Circuit system manufactured by AT&T now Lucent . SLC 96 has its own version of T1 frame synchronization between it and the CO. This interface is the Telcordia Technologies formerly Bellcore Generic Requirements documents http telecom info.telcordia.com site cgi ido docs.cgi?ID SEARCH&DOCUMENT GR 8& GR 8 CORE or http telecom info.telcordia.com site cgi ido docs.cgi?ID SEARCH&DOCUMENT GR 303& GR 303 CORE interface which are specialized versions of T1 intended to allow transparent transport of analog features such as Caller ID , Call Waiting , etc. See also Pair gain Distributed switching Digital loop carrier Telephone line Remote concentrator References http telecom info.telcordia.com site cgi ido docs.cgi?ID SEARCH&DOCUMENT GR 303& Telcordia GR 303 CORE, Integrated Digital Loop Carrier System Generic Requirements, Objectives, and Interface http telecom info.telcordia.com site cgi ido docs.cgi?ID SEARCH&DOCUMENT GR 8& Telcordia GR 8 CORE, Digital Interface between the SLC R 96 Digital Loop Carrier System and a Local Digital Switch references ...   more details



  1. Digital

    other uses A digital system ref Tocci, R. 2006. Digital Systems Principles and Applications 10th Edition .... By contrast, non digital or Analog signal analog systems use a continuum theory continuous range of values to represent information. Although digital representations are discrete, the information represented ..., such as sounds, images, and other measurements of continuous systems. The word digital comes from ... information is converted to a digital media digital format as in digital audio and digital photography . Digital noise When data is transmitted, or indeed handled at all, a certain amount of noise enters ... or inductance. Temperature variations can increase or reduce these effects. While digital transmissions ... a kind of distortion. In a digital signal, similar variances will not matter, as any signal close ... and distortion when connecting digital and analog systems, but more when using analog systems. Symbol to digital conversion Since symbols for example, alphanumeric Character computing characters are not continuous ... information to digital. Instead of sampling signal processing sampling and quantization signal processing quantization as in analog to digital conversion , such techniques as polling computer science ... each x line in sequence and detecting which y lines then have a signal, thus which keys are pressed ... but is not in the standard. Properties of digital information All digital information possesses common properties that distinguish it from analog communications methods Synchronization Since digital information is conveyed by the sequence in which symbols are ordered, all digital schemes have some method ... typically use special synchronization sequences. Language All digital communications require a language , which in this context consists of all the information that the sender and receiver of the digital ... and actual communication. Disturbances in a digital communication do not result in errors ... digital communication. Further, techniques such as check codes may be used to detect errors and guarantee ...   more details



  1. Subscriber trunk dialling

    Subscriber trunk dialling STD , also known as subscriber toll dialing is a term for a telephone system allowing subscribers to dial trunking trunk calls without telephone operator operator assistance. Terminology As well as the UK, the term subscriber trunk dialling is used in other countries such as the Republic of Ireland , Australia and India . The corresponding term in the North American Numbering Plan USA and Canada is direct distance dialing . The term was extended when, on 8 March 1963, subscribers in London were able to directly dial Paris using International Direct Dialing international subscriber trunk dialing . Explanation The introduction in the UK of subscriber dialling of long distance calls removed the distinction that had existed between Trunk vs Toll Trunk and Toll calls. This term however, is still widely prevalent in India to describe any national call made other than one s local unit. A subscriber is someone who subscribes to, i.e. rents, a telephone line and a trunk call is one made over a Trunking trunk line , i.e. a telephone line connecting two exchanges a long distance apart. Now that all calls may be dialled direct, the term has fallen into disuse. History In the UK, STD started on 5 December 1958 when the Elizabeth II of the United Kingdom Queen , who was in Bristol , dialled a phone call to Edinburgh &ndash the furthest distance a call could be directly dialled. The STD system was completed in 1979, though most of the country was covered well before then. The system required that each area have its own STD code which could be dialled by subscribers, and although they are now officially called UK area codes area code s, it is still common to see and hear the old term in everyday use. See also List of country calling codes Telephone numbers in India Trunk prefix UK telephone numbering plan References reflist External links http www.bsnl.co.in ... article from the BBC on the introduction of Subscriber Trunk Dialing. http news.bbc.co.uk 1 hi uk 7766631.stm ...   more details



  1. Digital+

    infobox company name CanalSat lite Digital, S.L. logo File DIGITAL .svg 200px caption type Limited liability company Sociedad Limitada genre fate predecessor successor foundation 21 July 2003 founder defunct location city Tres Cantos location country Spain location locations area served Spain key people industry Satellite television products Pay television services revenue operating income 80.2 million 2009 net income aum assets equity owner num employees parent Sogecable divisions subsid homepage http www.plus.es www.plus.es footnotes intl CanalSat lite Digital, S.L. is a Spain Spanish satellite broadcasting company that operates Digital , a subscription television service in Spain . The company is a subdivision of Sogecable 56 , Gestevisi n Telecinco and Telefonica 20 . The company was founded on July 23, 2003 as a result of the merger of Via Digital owned by Telef nica and Canal Sat lite Digital owned by Canal Sociedad de Television Canal Plus, S.A. . Digital offers its services through SES Astra Astra satellites at Astra 19.2 E 19.2 east and Hispasat 30 west . See also List of channels on Digital External links http www.plus.es Official Website es icon Mediaset Spanish television stations Channels on Digital CATV Europe Category Sogecable Category Direct broadcast satellite services Category Telecommunications companies of Spain Category Companies established in 2003 Category Spanish television networks ca Digital de Digital es Digital fr Digital it Digital pl Digital tr Digital ...   more details



  1. Digital Be-In

    Refimprove date October 2007 The Digital Be In is an ongoing San Francisco based event that began with a mission to carry forth the ethos and values expressed at the 1960s Human Be In , and bring them into the world of multimedia and Internet technology. It served a role through the 1990s as a venue for the San Francisco Bay Area s community of new media pioneers to socialize and exchange ideas. Cyberculture became the focal point of the gatherings. However, producer Michael Gosney also brought in key figures from the Human Be In such as Allen Cohen poet Allen Cohen , Chet Helms and Timothy Leary ... Be In, the first Digital Be In was held on January 21, 1989 in San Francisco, as a party for Verbum magazine, an early digital art magazine. Verbum president, Michael Gosney, promoted digital media ... of cyberculture. Computer industry people and underground artists came together at the first Digital ... gathered in person. In 1995, the official name was shortened from Digital Art Be In simply to Digital Be In. Additionally that year, Verbum organized a Be In in Tokyo . There they had a video ... Area and the personal computer revolution, a Digital Art Gallery, and the Digital Frontier included ... the development of new technology and digital art alongside immersive light shows. Projections combined original 1960s artists analog work with video effects and 3D digital animation. In 1996, the 8th Be In took its next step and started netcasting . Themes In 1997, Digital Be In 9 matured with the introduction ... out. Rewired online journal. http www.theatlantic.com unbound citation wc990120.htm Be In Digital. Atlantic ... Digital Be In History http intrepidtrips.com roadtrips be in Live from the Digital Be In . A report .... http www.futuresalon.org 2004 05 from you to i n.html Notes from the Digital Be In. Futuresalon blog entry. http blog.onevillage.tv ?p 111 Planet Code Digital Be In. Onevillage blog entry. http ericmagnuson.com 2006 04 back from digital be in.html Back from the Digital Be In. Technologist Eric ...   more details



  1. NOT digital

    Orphan date February 2009 DISPLAYTITLE NOT digital Infobox musical artist Name NOT digital Img Img capt Background group or band Origin Windsor, Ontario Windsor , Ontario , Canada Genre Electronic music Electronic , Experimental rock Experimental Industrial music Industrial Art rock Art Rock Years active 2004 present URL Current members Erik Ingalls, Stephen Hargreaves Notable instruments Custom guitars involving built in effects & midi connections to synths. Vintage analogue synths. NOT digital sometimes NOT digital are a Canadian Electronic music electronic band formed in 2005 consisting of Erik Ingalls Vocals, Guitars, modified & Midi Guitars, Keyboards and Stephen Hargreaves Vocals, Bass, Analogue Synths, and sounds . NOT digital have masterfully managed to combine electronic, trip hop and industrial sounds into a gorgeous collage of music. Almost conjuring of another world, NOT digital forces the listener to drift off with the music & escape for a time. The music s strength lies in building an environment. A marriage of Romantic and early 20th century composers and modern electronic and ambient music. Ingalls and Hargreaves are often accompanied live by others most recently including Bradford Helner drums and Stephen s sister Kate Hargreaves keys . Discography In Dreams of Something New I Have Not Been Well 2005 in music 2005 External links MySpace music notdigital NOT digital Category Canadian industrial music groups Category Canadian electronic music groups Category Musical groups from Windsor, Ontario Category Musical groups established in 2004 Category 2000s music groups Canada band stub ...   more details



  1. Digital-S

    than that of Betacam SP and comparable to Digital Betacam. ref http www.jvc victor.co.jp english pro ... with pre read and is provided with 4 channel audio like digital betacam. SDI interfaces are also ... s japanese D 9 product page See also Betacam Digital Betacam HDCAM Homevid High definition High definition media Category Video storage Category 1995 introductions de D9 Videoformat es Digital S fr Digital S it D9 standard di videoregistrazione ja D9 VTR ru Digital S ...   more details



  1. D.I.G.I.T.A.L.

    Unreferenced date April 2008 Infobox Album See Wikipedia WikiProject Albums Name D.I.G.I.T.A.L. Type Album Artist KRS One Cover KRS One Digital.jpg Released November 25, 2003 Genre Hip hop music Hip hop Label Cleopatra Records Producer KRS One, Simone Parker , DJ Premier , Kid Capri Reviews Allmusic Rating 2.5 5 Allmusic class album id r667665 pure url yes link RapReviews Rating 8 10 http www.rapreviews.com archive 2004 05 digital.html link Last album Kristyles br 2003 This album D.I.G.I.T.A.L. br 2003 Next album Keep Right br 2004 D.I.G.I.T.A.L. is a compilation album by American MC KRS One . It was released in November 2003 via Front Page Entertainment and is compromised by a number of songs previously only released on white label 12 singles and B sides with a few remixes and KRS One cameos on other artist records. Many of the tracks have here been given different titles from their original releases. For example, As You Already Know was originally released as a single by Truck Turner under the name Symphony 2000 while When The Moon was called Aquarius when it first was released as a limited KRS One 12 single around 1999. Track listing Intro You Know What s Up For Example Tell the Devil Ha When the Moon Featuring Courtney Terry Free Mumia Featuring Channel Live Contains a sample from Hard to Handle by Otis Redding Ah Yeah Bring It to the Cypher Featuring Truck Turner artist Truck Turner Produced by DJ Premier As You Already Know Featuring Truck Turner artist Truck Turner , Big Punisher , Kool G Rap Contains a sample from The Symphony by Juice Crew A Freestyle Song Featuring Common rapper Common Article Remix Featuring Mad Lion , Shelly Thunder , Whitey Don Music for the 90s Featuring G. Simone Produced by Kid Capri Contains a sample from Why Is That? by Boogie Down Productions BDP Let It Flow Get You in the Mood Featuring Courtney Terry Remember No Wack DJ s We Don t Care ... produced by Showbiz Category Albums produced by DJ Premier 2000s eastcoast hiphop album stub pl D.I.G.I.T.A.L. ...   more details



  1. Transmitting subscriber identification

    unreferenced date June 2009 A transmitting subscriber identification abbreviated TSID is a string that identifies a specific fax machine as the sender of a fax transmission. The transmitting machine sends its TSID to the receiving machine. The receiving machine typically prints the TSID at the top or bottom of the received fax to help the recipient determine the fax s origin. See Called subscriber identification for further information. See also Caller ID DEFAULTSORT Transmitting Subscriber Identification Category Telecommunications terms Category Data transmission ...   more details




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