We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byClarence Scruton
Modified over 2 years ago
ADSL Technology Evolution ADSL2/ADSL2plus/ADSL-RE Peter LeBlanc 2005
©DSL Forum 2005 2 Today there are various DSL Technology Options FamilyITUNameRatifiedMaximum Speed capabilities ADSLG.992.1G.dmt19997 Mbps down 800 kbps up ADSL2G.992.3G.dmt.bis20028 Mb/s down 1 Mbps up ADSL2plusG.992.5ADSL2plus200324 Mbps down 1 Mbps up ADSL2-REG.992.3Reach Extended20038 Mbps down 1 Mbps up SHDSL (updated 2003) G.991.2G.SHDSL20035.6 Mbps up/down VDSLG.993.1Very-high-data-rate DSL 200455 Mbps down 15 Mbps up VDSL2 -12 MHz long reach G.993.2Very-high-data-rate DSL 2 200555 Mbps down 30 Mbps up VDSL2 - 30 MHz Short reach G.993.2Very-high-data-rate DSL 2 2005100 Mbps up/down
©DSL Forum 2005 3 A Brief Examination… ADSL2 –Approved by ITU-T as G.992.3 July 2002 –Features Improved rate – up to 12Mbps by 1Mbps Improved reach – around 600ft / 180m –Power cutback capability –Reduced framing overhead –Better modulation efficiency –Channelisation capability –Bonding of lines
©DSL Forum 2005 4 A Brief Examination… ADSL2+ (or ADSL2plus) –Approved by ITU-T as G.992.5 January 2003 –Features Much increased rates – up to 20Mbps by 1Mbps –Doubled downstream frequency band to 2.2Mhz Reduced cross talk Allows provision of advanced services Builds on all ADSL2 features Legacy interoperable
©DSL Forum 2005 5 Timing and Implementation ADSL2-now ADSL2+-now VDSL (1)-now VDSL2-late 2005 –Chipsets being released in quantity –Manufacturers assume ratification by end September 2005
©DSL Forum 2005 6 Service Migration Issues ADSL2+ –Backward interoperable Services now available Being installed as the “standard” modem chip set Interoperability problems effectively overcome VDSL2 –ADSL, ADSL2 and ADSL2+ interoperable Chip sets coming available very fast Modems will be in mass supply in early 2006
©DSL Forum 2005 7 Increasing Revenue Triple / Quad play is becoming a reality! –ADSL2+ and VDSL2 both offer wide area 20+Mbps multi-channel speeds Allows FTTC and direct from exchange service Full service residential 50Mbps by 10Mbps – max Wide area business Ethernet Feeder transport to remote nodes – using bonding 3 x HDTV (VDSL2), Internet, voice, gaming etc
©DSL Forum 2005 8 Network Scalability ADSL2+ and VDSL2 –With VDSL2 now approved: Backward compatible with ADSL2+ etc Offers highly scalable networks Creates new flexibility for service providers Steadily take fibre closer to the subscriber –Migrate ADSL → ADSL2+ → VDSL2 Easily implemented service expansion and upgrade
©DSL Forum 2005 9 Standards evolution empower Video delivery at higher speeds ADSL2plus (G.992.5) >downstream bandwidth boost up to 24.5 Mb/s Reach Extended ADSL: RE-ADSL2 (G.992.3 annex L) >loop reach increase of 600 to 900 m at low rates (192 kb/s DS + 96 kb/s US) Next Generation ADSL: ADSL2 (G.992.3) performance improvement (+100 kb/s on average) improved interop, loop diagnostics, robustness > improved initialization & fast start-up > power management ADSL Double upstream (G.992.3/5 annex M) >double upstream bandwidth Very high speed DSL bandwidths up to 100 Mb/s on short loops different band plans Plan 997: compromise band plan for symmetric and asymmetric traffic Plan 998: optimized for asymmetry Plan Fx: flexible band plan VDSL2 Most service providers are updating with a triple pack: ADSL2, ADSL2plus and RE-ADSL at the same time
©DSL Forum 2005 10 Summary ADSL2+ and VDSL2 offer triple play at last –Reach allows wider serving areas –Rates allow triple play and enhanced services –Ethernet rapidly taking over from ATM Offers LAN extension type services – no signal conversion –Network architecture evolving faster than ever before – DSL Forum driven
1 xDSL Technical Overview Oct DSL Market Drivers & Enablers Service Provider Drivers Telco's desire to compete with Cable companies Additional.
“Infrastructure for Transport of Multimedia Applications to the End User” Access Network Architectures and High Speed Access Technologies.
1 UDSL UDSL Uni-DSL - One DSL for Universal Service.
Computer Networks Digital Access Technologies. Spring 2006Computer Networks2 How Computer Networks are Built? LANs (Local Area Networks) are relatively.
DIGITAL SUBSCRIBER LINE
TEL 355: Communication and Information Systems in Organizations Asymmetric Digital Subscriber Line (ADSL) Professor John F. Clark.
WAN Technologies Lecture 9 Paul Flynn.
New ADSL2 Standards Which delivers improved rate and reach performance, advanced diagnostics capabilities, standby modes, and more to broadband designers.
TYPES; 1. Analog Analog 2. ISDN ISDN 3. B-ISDN B-ISDN 4. DSL DSL 5. ADSL ADSL 6. SDSL SDSL 7. VDSL VDSL 8. CABLE CABLE 9. Wireless Wireless 10. T-1 lines.
PREPARED BY :- HIMANSHU MINZ VIKAS UPADHYAY VOCATIONAL TRAINING AT BSNL,DURG BATCH 4 SESSION 2014.
Asymmetric Digital Subscriber Line Tutorial Slide Show.
DSL technology and deployment
Presented by: Eng. Karam Al-sofy
A Seminar Topic on ADSL Asymmetric digital subscriber line.
Telecommunications systems (Part 1) School of Business Eastern Illinois University © Abdou Illia, Spring 2007 (Week 12, Tuesday 3/27/2007)
Sistem Broadband Pertemuan 13 Matakuliah: H0122 / Dasar Telekomunikasi Tahun: 2008.
Unleashing Next-Generation Cable Puma5 and the gateway to DOCSIS ® 3.0.
Chapter 9 Using Telephone and Cable Networks for Data Transmission.
14 March 2002 SG 15 activity on Broadband Delivery and In-Home Networking Andrew Nunn (BT, UK) Chairman ITU-T WP1/15.
1 Lec # 19 Data Communication Muhammad Waseem Iqbal.
ADSL Raghunath M D BSNL Mobile Services, Ernakulam, Ph:
Using Telephone and Cable Networks for Data Transmissions
Networks and Protocols CE Week 5b. WAN’s, Frame Relay, DSL, Cable.
Spring 2006Data Communications, Kwangwoon University9-1 Chapter 9. High-Speed Digital Access 1.DSL Technology 2.Cable Modem 3.SONET.
Asymmetric Digital Subscriber Line (ADSL)
DSL and Cable Modems Broadband Communication Technology Murdoch, Tyler Nguyen, Hien Piltzer, Gabriel.
3.7 DIGITAL SUBSCRIBER LINE After traditional modems reached their peak data rate, telephone companies developed another technology, DSL, to provide higher-speed.
9.1 Chapter 9 Using Telephone and Cable Networks for Data Transmission Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction.
Types of Internet Connections
Chador Wangdi Page 1of15. Analog (up to 56k/ dial up access) Using a modem connected to your PC, users connect to the internet when the computer dials.
Broadband local access technology
Using Telephone and Cable Networks for Data Transmission
1. DSL(Digital Subscriber Line) DSL technology provides high-speed, broadband network connections to homes and small businesses. DSL utilizes the same.
Chapter 9 High-Speed Digital Access: DSL, Cable Modem, and SONET.
1 Back to Slide 7. 2 Also called dial-up access, it is both economical and slow. Using a modem connected to your PC, users can connect to the Internet.
IT in Business Enterprise and Personal Communications Networks Lecture – 07.
DOCSIS Young-Tae Han 배경 HD video service 수요 증가 100+ HD channel SD video serivcie 위성과의 경쟁 Personalized Video Serivces
TMitTI 1 © Sakari Luukkainen Content Previous technology cycle Analog Modems ISDN Technology cycle of fixed broadband Case ADSL Case DOCSIS Conclusion.
The role of wireline access technologies to bridge the digital divide BB for All Cluster workshop “How to bridge the digital divide ?”
X.25 Packet switched Network consisting of X.25 switches. X.25 is a connection oriented protocol (Virtual Circuits). End nodes are identified by an X.25.
ONE PLANET ONE NETWORK A MILLION POSSIBILITIES Barry Joseph Director, Offer and Product Management.
Using Telephone and Cable Networks
ADSL Asymmetric Digital Subscriber Line. What are the benefits of ADSL? You can talk on the phone and use the Internet at the same time on a single phone.
The Physical Layer "You can never be too rich, too thin, or have too much bandwidth" Our goals: understand characteristics of various transmission media.
Analog to Digital (digital telephony) Given an analog function (voice?) we wish to represent it as a sequence of digital values Pulse Amplitude Modulation.
Recap: Last Class Introduction to computer networks Definition of a computer network Circuit switching versus packet switching Elements of a computer.
1 Kyung Hee University Chapter 9 Using Telephone and Cable Networks for Data Transmission.
Power point presentation on internet Presentation by: Tenzin wangda.
Ethernet Over VDSL Ethernet over VDSL Solution Concepts Concepts Opportunities.
© 2017 SlidePlayer.com Inc. All rights reserved.