Characterization of a new copper cable for next generation DSL systems

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Characterization of a new copper cable for next generation DSL systems"

Transcription

1 la The Tour Marine Tanguy, Drive,, Brest Mumbai. (FR). Characterization of a new copper cable for next generation DSL systems Project Co-ordinates ordinates Kalpesh PATEL TELECOM ParisTech Paris, France. Maurice GAGNAIRE TELECOM ParisTech Paris, France. Sandrine FRANCOIS Nexans Research Center Lyon, France. Kalpesh PATEL Telecom-Bretagne (Brest) February 14,

2 Presentation Outline Agenda 1. ADSL Standards. 2. Physical layer (Copper cable technology). 3. Numerical applications. 4. and perspectives. 2

3 ADSL2+ Standard (1/4) TELECOM INFRASTRUCTURE (CABLES) DEMAND DRIVERS STANDARD Evolution of Broadband ASSOCIATED FREQUENCY PLAN ITU-T Central Office SERVICES APPLICATION BANDWIDTH /TRAFFIC SPEED REQUIRED 200 Ko word document 1.5 Mo Powerpoint 10 Mo Audio File 700 Mo Video file VDSL ADSL2+/ Remote adsl POTS/ adsl 34 KHz 0 to 1.1 MHz 25s 3 min 12 s 21 min 20 s ~1 day Fiber Optic cable infrastructure Fiber Optic cable infrastructure <1s 6 s 40 s 46 min 40 s Copper cable infrastructure max up to 2.5km Copper cable infrastructure to deliver POTS & adsl up to 5.5km ANALOGUE VOICE POTS 64 KBits/s G : ADSL VOICE + FAST INTERNET ADSL/ ISDN 128 KBits/s ADSL 512 KBits/s G : ADSL 2 VOICE +DATA + VIDEO (MPEG2) ADSL 1 MBits/s ADSL2 2 MBits/s 0 to 2.2 MHz <1s ~1 s 8 s 9 min 20 s Copper cable infrastructure max up to 300m G : ADSL 2+ VOICE +DATA + VIDEO & HDTV(MPEG4) ADSL2+ 8 MBits/s 0 to 12 MHz VDSL 22 MBits/s G 998 : VDSL FULL TRIPPLE PLAY Subscriber Premises 0 to 30 MHz VDSL 2 >MBits/ s

4 ADSL2+ Standard (2/4) ADSL2+, is most popular in all DSL flavour. ADSL stands for Asymmetric Digital Subscriber Line. ADSL2+ Covering 2.2 MHz bandwidth using 512 sub channel. Asymmetrical service, separate Upstream and Downstream bandwidth (for data), including POTS (voice service). Implemented using Fast Fourier Transform (FFT). POTS : Plain Old Telephone Service.. 4

5 ADSL2+ Standard (3/4) ADSL2+ (DMT) Transmission / Receiver System DMT = Discrete MultiTone 5

6 ADSL2+ Standard (4/4) ADSL2+ Bandwidth Allocation 6

7 Basic Infrastructure Basic hierarchy of xdsl. POTS : Plain Old Telephone Service.. DSLAM : DSL Access Multiplexer MDF = Master Distributer Frame. PBX = Private Branch exchange. OSP = Out Side Plant. STB = Set Top Box. 7

8 Basic noises for ADSL (1/3) Attenuation : is the function of frequency and its given by the following equation, 8

9 Basic noises for ADSL (2/3) Crosstalk Near End Cross Talk (NEXT) Far End Cross Talk (FEXT) PSELFEXT is the equal level Power sum FEXT, and its derived by subtracting attenuation from PSFEXT. 9

10 ADSL2+ Standard (3/3) CO OSP MDF CPE CO = Central Office OSP = Outside Plant (Cable) MDF = Master Distribution Frame. CPE = Customer Premise Equipment For Shorter distance, crosstalk is the predominant factor For Higher distance, attenuation is the predominant factor In real networks, 200 meters is roughly the limit separating the crosstalk-predominant region from the attenuation-predominant region Attenuation mainly depends on copper cable diameter Crosstalk mainly depends on cable design (Geometry of Cable) Key approach: improving cable design 10

11 Classical Telecom Cable Cross section of 52 pairs Classical Indoor wiring / OSP copper cable. Core (Copper). Insulation : 2 Insulated conductors twisted together. Wrapping tape Polypropylene. Screen Foil ALU/PET, ALU inside. Tin copper drains wire. RIP Cord. OSP = Out Side Plant. Jacket : PVC Grey. 11

12 Enhanced Telecom Cable by Nexans (1/2) Cross section of 32 pairs Enhanced Indoor wiring copper cable. Core (Copper). Insulation : 2 Insulated conductors twisted together. Sub-bundle of 8 Pairs. Wrapping tape Polypropylene. Screen Foil ALU/PET, ALU inside. Tin copper drains wire. RIP Cord. Jacket : PVC Grey. Given Name LAGXT = Low Attenuation Good XTalk. 12

13 Enhanced Telecom Cable by Nexans (2/2) Cross section of 32 pairs Enhanced OSP copper cable. Core (Copper). Insulation : 2 Insulated conductors twisted together. Sub-bundle of 4 Pairs. Wrapping tape Polypropylene. Screen Foil ALU/PET, ALU inside. Tin copper drains wire. Rip cord. Given Name OSP 54. Jacket : PVC Grey. 13

14 Performance of Nexans Enhanced Cable Nexans s Enhanced cable perform 40% better than classical cables at 2000 m distance from CO (Central Office). Enhanced OSP by 2000 m 40 % Standard OSP cable Analytical model results are shown in the above figure using continuous line for ADSL2+. Error margin around ±10 % between real measurement and analytical modeling 14

15 Investigation using Math Model (1/2) Nexans s investigate that improvement on PSACR factor can impact on cable performance. PSACR = Power Sum Attenuation to Crosstalk Ratio. Nexans s found economical solution to improve this parameter. We tried math model using different level of PSACR in order to get idea of theoretical limits of copper cables. 15

16 Investigation using Math Model (2/2) Following figure shows performance of cables having different PSACR level i.e. 20, 30, 40 & 80 db. PSACR 30 db PSACR = 20 db The higher PASCR, the better Crosstalk (Better Design) Above figure reveals that PSACR above 40 db, no further improvement is obtained. Above 2500 m, enhanced manufacturing is useless. 16

17 Summary at a glance (1/2) s behaves differently, below and above 200 meters Nexans cable reduces the impact of crosstalk compared to existing copper wired thanks to a new cable manufacturing This improvement is mainly advantageous under 500 meters Such a distance corresponds to FTTC Two usage of Nexans cable: New copper terminations for FTTC New private cabling systems for FTTH Meanwhile, improving crosstalk by better manufacturing has its limits 17

18 Summary at a glance (2/2) Perspectives Using advanced line codes and modulation techniques to exploit the extended Shannon s capacity, Optimizing in Cable design. Non-binary LDPC codes. Iterative water-filling. Vectored transmission. 18

19 Acknowledgement Thanks a lot! The Champs-Élysées,, Paris (FR). 19

Black Box Explains: DSL

Black Box Explains: DSL Black Box Explains: DSL History It was realized as early as the late eighties, early nineties, that conventional data transmission systems did not meet the requirements of the growing internet community

More information

Public Switched Telephone System

Public Switched Telephone System Public Switched Telephone System Structure of the Telephone System The Local Loop: Modems, ADSL Structure of the Telephone System (a) Fully-interconnected network. (b) Centralized switch. (c) Two-level

More information

HIGH CAPACITY DSL-SYSTEMS

HIGH CAPACITY DSL-SYSTEMS Electronic Communications Committee (ECC) within the European Conference of Postal and Telecommunications Administrations (CEPT) HIGH CAPACITY DSL-SYSTEMS Oulu, March 2006 Page 2 EXECUTIVE SUMMARY In this

More information

Broadband 101: Installation and Testing

Broadband 101: Installation and Testing Broadband 101: Installation and Testing Fanny Mlinarsky Introduction Today the Internet is an information superhighway with bottlenecks at every exit. These congested exits call for the deployment of broadband

More information

What are the Requirements for an Accurate DSL Line Simulator? Paradyne International, France

What are the Requirements for an Accurate DSL Line Simulator? Paradyne International, France Title: Source: Author: Contact: What are the Requirements for an Accurate DSL Line Simulator? Paradyne International, France Jack Douglass Jack Douglass Paradyne Networks, Inc. Voice: 949-233-3558 Email:

More information

Enhanced xdsl solutions Deploy faster and lower your costs

Enhanced xdsl solutions Deploy faster and lower your costs Enhanced xdsl solutions Deploy faster and lower your costs Extending the performance of your copper infrastructure Digital Subscriber Line (DSL) technologies use sophisticated modulation schemes to bring

More information

Analysis of xdsl Technologies

Analysis of xdsl Technologies International Journal of Electronics and Computer Science Engineering 897 Available Online at www.ijecse.org ISSN- 2277-1956 Analysis of xdsl Technologies Dimple Saproo 1, Megha Goyal 2, Asha Bhagashra

More information

XDSL and DSLAM Access Technologies

XDSL and DSLAM Access Technologies XDSL and DSLAM Access Technologies Abstract What are the differences between the different forms of xdsl technology, such as ADSL and HDSL? How are they implemented. What are the limitations? What are

More information

Broadband access. Nils Holte, NTNU. NTNU Department of Telecommunications Kursdagene ved NTNU, Digitale telenett, 9. januar 2002 1.

Broadband access. Nils Holte, NTNU. NTNU Department of Telecommunications Kursdagene ved NTNU, Digitale telenett, 9. januar 2002 1. Broadband access - properties of the copper network Nils Holte, Kursdagene ved, Digitale telenett, 9. januar 2002 1 Definition of broadband Overview Alternatives for fixed broadband access pair cable,

More information

V-DSL technology in the NBN

V-DSL technology in the NBN CommsDay Melbourne Congress 2013 V-DSL technology in the NBN Wednesday 9 th October 2013 Cliff Gibson Outline VDSL2 technologies which extend the capability of existing copper are expected to be included

More information

Network Requirements for DSL systems, (ADSL through G.Fast) (A summarized view)

Network Requirements for DSL systems, (ADSL through G.Fast) (A summarized view) Network Requirements for DSL systems, (ADSL through G.Fast) (A summarized view) Gilberto GG Guitarte, BB Connectivity Director TE Connectivity FTTH LATAM Chapter CHAIRMAN 2/24/2014 G.A.Guitarte 1 Executive

More information

(Refer Slide Time: 2:10)

(Refer Slide Time: 2:10) Data Communications Prof. A. Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture-12 Multiplexer Applications-1 Hello and welcome to today s lecture on multiplexer

More information

How Enhanced DSL Technologies Optimize the Last Copper Mile By John Williams

How Enhanced DSL Technologies Optimize the Last Copper Mile By John Williams White Paper How Enhanced DSL Technologies Optimize the Last Copper Mile By John Williams As broadband speeds increase to support the connected home, a debate continues over which type of network architecture

More information

Intel System Engineers Documents. DSL General Overview

Intel System Engineers Documents. DSL General Overview Intel System Engineers Documents DSL General Overview Alex Lattanzi SC LAR Whatt IIs Brroadband? Broadband describes a number of different technologies that deliver digital data to homes and businesses

More information

V101. VDSL LAN Extender

V101. VDSL LAN Extender V101 VDSL LAN Extender User Manual Ver 1.01 1 Table of Content 1. Introductions... 3 2. Application Notes... 3 3. Features... 4 4. Packing Contents... 4 5. LED Indicators... 5 6. Dip Switches Settings...

More information

How DSL Works. by Curt Franklin

How DSL Works. by Curt Franklin by Curt Franklin How DSL Works When you connect to the Internet, you might connect through a regular modem, through a localarea network connection in your office, through a cable modem or through a digital

More information

VDSL2 LAN Extender User Manual

VDSL2 LAN Extender User Manual VDSL2 LAN Extender User Manual Ver 1.02 Table of Content 1. Introductions... 3 2. Application Notes... 3 3. Features... 4 4. Packing Contents... 4 5. LED Indicators... 5 6. Dip Switches Settings... 5 7.

More information

Digital Subscriber Line (DSL) Transmission Methods

Digital Subscriber Line (DSL) Transmission Methods Digital Subscriber Line (DSL) Transmission Methods 1. Overview... 1 2. SHDSL Transmission Methods... 1 SHDSL Transmission System Versions... 1 SHDSL Transmission Subsystem Structure... 1 SHDSL Modulation

More information

TELECOMMUNICATIONS STANDARDS ADVISORY COMMITTEE WORKING GROUP ON COMMON CONNECTION STANDARDS (CCS)

TELECOMMUNICATIONS STANDARDS ADVISORY COMMITTEE WORKING GROUP ON COMMON CONNECTION STANDARDS (CCS) TELECOMMUNICATIONS STANDARDS ADVISORY COMMITTEE WORKING GROUP ON COMMON CONNECTION STANDARDS (CCS) Overview of Very High Speed Digital Subscriber Line 2 (VDSL2) 甚 高 速 數 碼 用 戶 線 路 2 的 概 覽 Introduction ADSL

More information

DSL: An Overview. By M. V. Ramana Murthy. All Rights Reserved

DSL: An Overview. By M. V. Ramana Murthy. All Rights Reserved By M. V. Ramana Murthy All Rights Reserved COPYRIGHT: This document is a property of MultiTech Software Systems India Pvt. Ltd. No part of this document may be copied or reproduced in any form or by any

More information

TELECOMMUNICATIONS STANDARDS ADVISORY COMMITTEE TSAC WORKING GROUP ON NEW STANDARDS AND POLICY (NSP)

TELECOMMUNICATIONS STANDARDS ADVISORY COMMITTEE TSAC WORKING GROUP ON NEW STANDARDS AND POLICY (NSP) TELECOMMUNICATIONS STANDARDS ADVISORY COMMITTEE TSAC WORKING GROUP ON NEW STANDARDS AND POLICY (NSP) Introduction Development of Digital Subscriber Line (DSL) Technology This paper introduces the development

More information

Chapter 1. Introduction. 1.1 Research Motivation and Objective

Chapter 1. Introduction. 1.1 Research Motivation and Objective Chapter 1 Introduction 1.1 Research Motivation and Objective With the recent rapid growth of high-speed Digital Subscriber Line (DSL) access subscriptions, there is a high demand in the telecommunication

More information

:-------------------------------------------------------Instructor---------------------

:-------------------------------------------------------Instructor--------------------- Yarmouk University Hijjawi Faculty for Engineering Technology Computer Engineering Department CPE-462 Digital Data Communications Final Exam: A Date: 20/05/09 Student Name :-------------------------------------------------------Instructor---------------------

More information

Introduction to ADSL. NEXTEP Broadband White Paper. Broadband Networks Group. A primer on Asymmetric Digital Subscriber Line transmission technology.

Introduction to ADSL. NEXTEP Broadband White Paper. Broadband Networks Group. A primer on Asymmetric Digital Subscriber Line transmission technology. NEXTEP Broadband White Paper Introduction to ADSL A primer on Asymmetric Digital Subscriber Line transmission technology. A NEXTEP Broadband White Paper May 2001 Broadband Networks Group Introduction to

More information

Digital Subscriber Line (DSL)

Digital Subscriber Line (DSL) CHAPTER 9 This chapter describes the level of support that Cisco ANA provides for DSL, as follows: Technology Description, page 9-1 Inventory and Information Model Objects (IMOs), page 9-2 Vendor-Specific

More information

Detecting Bridged Tap and Noise Interference in VDSL2 Access Networks using the JDSU SmartClass TPS

Detecting Bridged Tap and Noise Interference in VDSL2 Access Networks using the JDSU SmartClass TPS Application Note Detecting Bridged Tap and Noise Interference in VDSL2 Access Networks using the JDSU SmartClass TPS The JDSU SmartClass TPS tester is the ideal tool for technicians who install, troubleshoot,

More information

Current access technologies overview

Current access technologies overview White Paper Current access technologies overview In this paper, we explore six basic technology choices for deploying broadband services to the end customer xdsl, DOCSIS, G.fast, satellite, wireless and

More information

Future Proof Telecommunications Networks with VDSL2

Future Proof Telecommunications Networks with VDSL2 Future Proof Telecommunications Networks with VDSL2 By: Stephan Wimoesterer Product Marketing Manager, VDSL2 Stephan. Wimoesterer@infineon.com V1.1 July, 2005 Future Proof Telecommunications Networks With

More information

Ethernet over VDSL2 PoE PD Converter

Ethernet over VDSL2 PoE PD Converter Ethernet over VDSL2 PoE PD Converter UVE7312-MSPD User Manual Ver 1.02 Copyright EUSSO Technologies, Inc. All rights reserve 1 Table of Content 1. Introductions... 2 2. Application Notes... 2 3. Features...

More information

www.zte.com.cn VDSL2 A feasible Solution for Last Mile

www.zte.com.cn VDSL2 A feasible Solution for Last Mile www.zte.com.cn VDSL2 A feasible Solution for Last Mile Version Date Author Approved By Remarks V1.00 009-08-8 MichaelSong Not open to the Third Party 009 ZTE Corporation. All rights reserved. ZTE CONFIDENTIAL:

More information

Chapter 9 Using Telephone and Cable Networks for Data Transmission

Chapter 9 Using Telephone and Cable Networks for Data Transmission 9-11 TELEPHONE NETWORK Chapter 9 Using Telephone and Cable Networks for Data Transmission 1 McGraw-Hill Copyright The McGraw-Hill Companies, Inc. Permission required The for reproduction McGraw-Hill or

More information

Exam questions. 1. Which of the following are true regarding xdsl? Choose three. It uses a portion of the existing phone line.

Exam questions. 1. Which of the following are true regarding xdsl? Choose three. It uses a portion of the existing phone line. Nguyen Khac Quyet - Take Exam Exam questions Time remaining: 00: 08: 31 1. Which of the following are true regarding xdsl? Choose three. It uses a portion of the existing phone line It is symmetrical It

More information

Innovative Synergies

Innovative Synergies 20030323 Digital CAN Innovative Synergies (2003, 2005, 2007, August 2012) Malcolm Moore 32-Mar-2003 Positioning ADSL (Asymmetric Digital Subscribers Line) In the picture below of the stylised network infrastructures

More information

Evolution from Voiceband to Broadband Internet Access

Evolution from Voiceband to Broadband Internet Access Evolution from Voiceband to Broadband Internet Access Murtaza Ali DSPS R&D Center Texas Instruments Abstract With the growth of Internet, demand for high bit rate Internet access is growing. Even though

More information

Data Transmission via Modem. The Last Mile Problem. Modulation of Digital Signals. Modem Standards (CCITT)

Data Transmission via Modem. The Last Mile Problem. Modulation of Digital Signals. Modem Standards (CCITT) The Last Mile Problem LN, MN, WN how to connect private users at home to such networks? Problem of the last mile: somehow connect private homes to the public Internet without laying many new cables By

More information

LevelOne User Manual VDS-0120 Ethernet over VDSL2 Converter (PSE)

LevelOne User Manual VDS-0120 Ethernet over VDSL2 Converter (PSE) LevelOne User Manual VDS-0120 Ethernet over VDSL2 Converter (PSE) V1.0 1 Table of Content 1. Introductions... 3 2. Application Notes... 3 3. Features... 4 4. Packing Contents... 4 5. LED Indicators...

More information

VDSL (VERY HIGH DATA BIT RATE DIGITAL SUBSCRIBER LINE)

VDSL (VERY HIGH DATA BIT RATE DIGITAL SUBSCRIBER LINE) 1 VDSL (VERY HIGH DATA BIT RATE DIGITAL SUBSCRIBER LINE) INTRODUCTION 1. Recent events in the telecommunications environment are giving rise to a new class of service providers, setting the stage for how

More information

Performance and Limitations of VDSL2-based Next Generation Access Networks

Performance and Limitations of VDSL2-based Next Generation Access Networks Paper Performance and Limitations of VDSL2-based Next Generation Access Networks George Heliotis, Lowell-Panayotis Dimos, Ioannis Kordoulis, and George Agapiou,, Athens, Greece Abstract In this paper,

More information

DSL Variations. NEXTEP Broadband White Paper. Broadband Networks Group. Definitions and differences of Digital Subscriber Line variations.

DSL Variations. NEXTEP Broadband White Paper. Broadband Networks Group. Definitions and differences of Digital Subscriber Line variations. NEXTEP Broadband White Paper DSL Variations Definitions and differences of Digital Subscriber Line variations. A NEXTEP Broadband White Paper May 2001 Broadband Networks Group DSL Variations EXECUTIVE

More information

CONTRIBUTION. +1-650-723-2150 cioffi@stanford.edu ABSTRACT

CONTRIBUTION. +1-650-723-2150 cioffi@stanford.edu ABSTRACT COMMITTEE T1 TELECOMMUNICATIONS Working Group T1E1. (DSL Access) Washington, DC: August 9, 200 T1E1./2003-87R1 CONTRIBUTION TITLE: SOURCE: J. Cioffi,B. Lee, M. Mohseni A. Leshem Li Youming GDSL (Gigabit

More information

APPLICATION NOTE 182 WIDEBAND TESTING. www.exfo.com Telecom Test and Measurement. The Need for Speed

APPLICATION NOTE 182 WIDEBAND TESTING. www.exfo.com Telecom Test and Measurement. The Need for Speed WIDEBAND TESTING By Florin Hodis, Member of Technical Staff The evolution of digital subscriber line (DSL) technologies and the increase of the bandwidth used present new testing challenges to service

More information

The Evolution of the U.S. Telecommunications Infrastructure Over the Next Decade

The Evolution of the U.S. Telecommunications Infrastructure Over the Next Decade The Evolution of the U.S. Telecommunications Infrastructure Over the Next Decade BROAD BANDWIDTH THROUGH DSL TTG4: McAdams, Cioffi, Bloom, Hargadon Digital Subscriber Line (DSL) telecommunication service

More information

Get to Fast, Faster Accelerate the Existing

Get to Fast, Faster Accelerate the Existing Get to Fast, Faster Accelerate the Existing Copper Plant with VDSL2 Vectoring and Bonding Strategic White Paper As service providers face rapidly increasing bandwidth demand from consumers, businesses

More information

WHITE PAPER December, 2001

WHITE PAPER December, 2001 Is Superior Essex Outside Plant Copper Cable Rated Category 3? The applicability of the Category 3 specification to outside plant cables is sometimes misunderstood. This white paper examines that issue,

More information

BROADBAND DSL ACHIEVING HEALTHY GROWTH

BROADBAND DSL ACHIEVING HEALTHY GROWTH MEDEA+ News 28 October 2003 BROADBAND DSL ACHIEVING HEALTHY GROWTH There were more than 10 million new subscribers to broadband digital subscriber line (DSL) connections in the first half of 2003, according

More information

Residential Broadband: Technologies for High-Speed Access To Homes

Residential Broadband: Technologies for High-Speed Access To Homes Residential Broadband: Technologies for High-Speed Access To Homes The Ohio State University Columbus, OH 43210-1277 1277 http://www.cse.ohio-state.edu/~jain/ 1 Overview 56 kbps Modems, ISDN ADSL, VDSL

More information

Introduction to Digital Subscriber s Line (DSL)

Introduction to Digital Subscriber s Line (DSL) Introduction to Digital Subscriber s Line (DSL) Professor Fu Li, Ph.D., P.E. Chapter 3 DSL Fundementals BASIC CONCEPTS maximizes the transmission distance by use of modulation techniques but generally

More information

Residential Broadband: Technologies for High-Speed Access To Homes

Residential Broadband: Technologies for High-Speed Access To Homes Residential Broadband: Technologies for High-Speed Access To Homes Columbus, OH 43210 Jain@CIS.Ohio-State.Edu http://www.cis.ohio-state.edu/~jain/cis788-97/ Email questions to mbone@netlab.ohio-state.edu

More information

Nexus Technology Review -- Exhibit A

Nexus Technology Review -- Exhibit A Nexus Technology Review -- Exhibit A Background A. Types of DSL Lines DSL comes in many flavors: ADSL, ADSL2, ADSL2+, VDSL and VDSL2. Each DSL variant respectively operates up a higher frequency level.

More information

1.264 Lecture 21. Telecom network technology: Fiber, satellite, cellular telephony, cable modems, DSL

1.264 Lecture 21. Telecom network technology: Fiber, satellite, cellular telephony, cable modems, DSL 1.264 Lecture 21 Telecom network technology: Fiber, satellite, cellular telephony, cable modems, DSL Network technology We ve just covered the basic components of transmission, switching/ routing and physical

More information

Telephone Systems. Home Telephones. Central Office. Local Loop. Wired Telephony

Telephone Systems. Home Telephones. Central Office. Local Loop. Wired Telephony Telephone Systems COMP476 Home Telephones Plain Old Telephone Service (POTS) provides a twisted pair connection from your phone to the central office. You own your home wiring and the telephone company

More information

Connection Services. Hakim S. ADICHE, MSc

Connection Services. Hakim S. ADICHE, MSc Connection Services Hakim S. ADICHE, MSc adiche@ccse.kfupm.edu.sa Department of Computer Engineering King Fahd University of Petroleum and Minerals Dhahran, Saudi Arabia Connection Services Different connectivity

More information

Technical Paper. Digital Subscriber Line (DSL): Using Next Generation Technologies to Expand Traditional Infrastructures

Technical Paper. Digital Subscriber Line (DSL): Using Next Generation Technologies to Expand Traditional Infrastructures Technical Paper Digital Subscriber Line (DSL): Using Next Generation Technologies to Expand Traditional Infrastructures USB ADSL Modem Contents Digital Subscriber Line (DSL): Using Next Generation Technologies

More information

Breathing New Life into Copper: The Long Awaited Arrival of VDSL2

Breathing New Life into Copper: The Long Awaited Arrival of VDSL2 Breathing New Life into Copper: The Long Awaited Arrival of VDSL2 Agenda Introduction Access Network Evolution VDSL2 Technology History of DSL ADSL2+ and VDSL2 comparison VDSL2 Nuts and Bolts PTM and Profiles

More information

TELECOMMUNICATION SYSTEMS

TELECOMMUNICATION SYSTEMS TELECOMMUNICATION SYSTEMS IP Networking Through Telecommunication System System Engineering BSc Full-time Overview Phone Line Modems Accoustic modem PSTN modem ISDN modem ADSL XDSL Acoustic modems Connection

More information

FWA - technology and benefit

FWA - technology and benefit FWA - technology and benefit Professor Torleiv Maseng adj. Professor radio communications Department of Electroscience ( Inst. för Elektrovetenskap), Lund University, LTH FWA: Point to multipoint systems

More information

An Analysis of Speed Drop in ADSL Lines in Sri Lanka

An Analysis of Speed Drop in ADSL Lines in Sri Lanka An Analysis of Speed Drop in ADSL Lines in Sri Lanka CPSY Dalpathadu # and PN Karunanayaka General Sir John Kotelawala Defence University, Ratmalana, Sri Lanka # sach.yamani@gmail.com Abstract: This paper

More information

INTRODUCTION TO DSL CHAPTER 1 1.1 THE TELEPHONE LOOP PLANT. 1.1 The Telephone Loop Plant. 1.2 DSL Reference Model. 1.3 The Family of DSL Technologies

INTRODUCTION TO DSL CHAPTER 1 1.1 THE TELEPHONE LOOP PLANT. 1.1 The Telephone Loop Plant. 1.2 DSL Reference Model. 1.3 The Family of DSL Technologies CHAPTER 1 INTRODUCTION TO DSL 1.1 The Telephone Loop Plant 1.2 DSL Reference Model 1.3 The Family of DSL Technologies 1.4 DSL Protocol Reference Model Digital subscriber line (DSL) technology transforms

More information

Appendix A: Basic network architecture

Appendix A: Basic network architecture Appendix A: Basic network architecture TELECOMMUNICATIONS LOCAL ACCESS NETWORKS Traditionally, telecommunications networks are classified as either fixed or mobile, based on the degree of mobility afforded

More information

ADSL / VDSL Technologies

ADSL / VDSL Technologies Chapter 3 ADSL / VDSL Technologies Both ADSL and VDSL are designed to operate on a subscriber s existing twisted copper access pair terminating at a Local Exchange Building (LEX) in conjunction with the

More information

Original Lecture Notes developed by

Original Lecture Notes developed by Introduction to ADSL Modems Original Lecture Notes developed by Prof. Brian L. Evans Dept. of Electrical and Comp. Eng. The University of Texas at Austin http://signal.ece.utexas.edu Outline Broadband

More information

ITU-T xdsl Standards Study Group 15 Question 4

ITU-T xdsl Standards Study Group 15 Question 4 International Telecommunication Union ITU-T xdsl Standards Study Group 15 Question 4 Stephen Palm Ph.D. Principal Engineer Broadcom palm @ broadcom. com ITU-T Workshop All Star Network Access Geneva, 2-4

More information

Broadband Access Technologies

Broadband Access Technologies Broadband Access Technologies Chris Wong Communications Engineering Sector Analysis & Reporting Branch International Training Program 23 October 2007 Presentation Outline What is broadband? What are the

More information

Data Transmission. Data Communications Model. CSE 3461 / 5461: Computer Networking & Internet Technologies. Presentation B

Data Transmission. Data Communications Model. CSE 3461 / 5461: Computer Networking & Internet Technologies. Presentation B CSE 3461 / 5461: Computer Networking & Internet Technologies Data Transmission Presentation B Kannan Srinivasan 08/30/2012 Data Communications Model Figure 1.2 Studying Assignment: 3.1-3.4, 4.1 Presentation

More information

SERIES L: CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT

SERIES L: CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT International Telecommunication Union ITU-T L.19 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2010) SERIES L: CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT

More information

DSL - Digital Subscriber Line Installation, Maintenance & Troubleshooting

DSL - Digital Subscriber Line Installation, Maintenance & Troubleshooting Hands-On DSL - Digital Subscriber Line Installation, Maintenance & Troubleshooting including: CAT5 & CAT6 Preparation, Installation & Testing BICSI CECs This course has been approved for CEC credits by

More information

EFM Copper (EFMC) Tutorial. June 2004

EFM Copper (EFMC) Tutorial. June 2004 EFM Copper (EFMC) Tutorial June 2004 2004 Ethernet in the First Mile Alliance. All Rights Reserved. 1 EFM Copper (EFMC) Tutorial INTRODUCTION... 2 EFMC: BASED ON DSL... 3 BACKGROUND ON DSL... 3 DSL ENHANCEMENTS

More information

FROM POTS TO VDSL - TECHNICAL ASPECTS OF A REASONABLE MIGRATION STRATEGY

FROM POTS TO VDSL - TECHNICAL ASPECTS OF A REASONABLE MIGRATION STRATEGY FROM POTS TO VDSL - TECHNICAL ASPECTS OF A REASONABLE MIGRATION STRATEGY Günther Komp, Thomas Kessler, Mathias Friese, Werner Henkel Deutsche Telekom AG, Am Kavalleriesand 3, D-64295 Darmstadt Abstract.

More information

By: Mohsen Aminifar Fall 2014

By: Mohsen Aminifar Fall 2014 By: Mohsen Aminifar Fall 2014 Contact Information: E-Mail: m.aminifar@modares.ac.ir admin@parsenet.ir Phone : 021-22919726 09128442885 Website : http://parsenet.ir http://aminifar.ir SMS Center : 5000262175

More information

Copyright. Transport networks. Physical layer Transport and access networks. Pag. 1

Copyright. Transport networks. Physical layer Transport and access networks. Pag. 1 Physical layer Transport and access networks Gruppo Reti TLC nome.cognome@polito.it http://www.telematica.polito.it/ COMPUTER NETWORK DESIGN Physical layer review - 1 Copyright Quest opera è protetta dalla

More information

1.264 Lecture 34. Telecom: Connecting wired LAN, WAN. Next class: Green chapter 17. Exercise due before class

1.264 Lecture 34. Telecom: Connecting wired LAN, WAN. Next class: Green chapter 17. Exercise due before class 1.264 Lecture 34 Telecom: Connecting wired LAN, WAN Next class: Green chapter 17. Exercise due before class 1 Exercise Your transportation brokerage company also handles billing for freight shipments,

More information

Chapter 2 from Tanenbaum - modified. The Physical Layer. Ref: A.S. Tanenbaum, Computer Networks, 4 th Ed., Prentice-Hall, 2003, ISBN: 0-13-038488-7.

Chapter 2 from Tanenbaum - modified. The Physical Layer. Ref: A.S. Tanenbaum, Computer Networks, 4 th Ed., Prentice-Hall, 2003, ISBN: 0-13-038488-7. Chapter 2 from Tanenbaum - modified The Physical Layer Ref: A.S. Tanenbaum, Computer Networks, 4 th Ed., Prentice-Hall, 2003, ISBN: 0-13-038488-7. Data Communications over Wireless and Digital Wired Systems

More information

Application Note 52. ADSL line qualification tests Author: Peter Ziemann (e-mail: peter.ziemann@wago.de)

Application Note 52. ADSL line qualification tests Author: Peter Ziemann (e-mail: peter.ziemann@wago.de) Alication Note 52 ADSL line qualification tests Auth: Peter Ziemann (e-mail: eter.ziemann@wago.de) Asymmetric Digital Subscriber Line (ADSL), a modem technology, converts existing twisted-air telehone

More information

Public Network. 1. Relatively long physical distance 2. Requiring a service provider (carrier) Branch Office. Home. Private Network.

Public Network. 1. Relatively long physical distance 2. Requiring a service provider (carrier) Branch Office. Home. Private Network. Introduction to LAN TDC 363 Week 4 Connecting LAN to WAN Book: Chapter 7 1 Outline Wide Area Network (WAN): definition WAN Topologies Choices of WAN technologies Dial-up ISDN T1 Frame Relay DSL Remote

More information

Telecommunications systems (Part 2)

Telecommunications systems (Part 2) School of Business Eastern Illinois University Telecommunications systems (Part 2) Abdou Illia, Spring 2007 (Week 12, Thursday 3/29/2007) T-1 Digital Subscriber Line (DSL) Cellular Telephone System Integrated

More information

White Paper: Broadband Access Technologies A White Paper by the Deployment & Operations Committee

White Paper: Broadband Access Technologies A White Paper by the Deployment & Operations Committee White Paper: Broadband Access Technologies A White Paper by the Deployment & Operations Committee Contributors: Rong Zhao (Detecon International) Wolfgang Fischer (Cisco) Edgar Aker (Prysmian Group) Pauline

More information

EECC694 - Shaaban. Transmission Channel

EECC694 - Shaaban. Transmission Channel The Physical Layer: Data Transmission Basics Encode data as energy at the data (information) source and transmit the encoded energy using transmitter hardware: Possible Energy Forms: Electrical, light,

More information

G.fast Shifting the limits of copper

G.fast Shifting the limits of copper G.fast Shifting the limits of copper Bell Labs, Alcatel-Lucent - Jochen Maes 19 January, 2012 @ UKNOF FTTH - the next big thing for decades 1988 1988 1988 1988 1989 2 Reality gradual deployment of fiber

More information

Chapter 11: WAN. Abdullah Konak School of Information Sciences and Technology Penn State Berks. Wide Area Networks (WAN)

Chapter 11: WAN. Abdullah Konak School of Information Sciences and Technology Penn State Berks. Wide Area Networks (WAN) Chapter 11: WAN Abdullah Konak School of Information Sciences and Technology Penn State Berks Wide Area Networks (WAN) The scope of a WAN covers large geographic areas including national and international

More information

The Evolution of Copper Cabling Systems from Cat5 to Cat5e to Cat6 Copper Cabling Standards and Technical Aspects

The Evolution of Copper Cabling Systems from Cat5 to Cat5e to Cat6 Copper Cabling Standards and Technical Aspects The Evolution of Copper Cabling Systems from Cat5 to Cat5e to Cat6 Copper Cabling Standards and Technical Aspects White Paper /7/0 Executive Summary Now that the TIA/EIA-568-B.- Category 6 Copper Cabling

More information

FiberHome s XGPON Solution

FiberHome s XGPON Solution FiberHome s X Solution 1 X Application Scenarios The application of digital FTTH family Due to the service development, bandwidth requirements are raised. will be replaced by X technology which provides

More information

Next Generation Access Glossary. 21CN: BT s upgrade of their core network (the backbone of the network).

Next Generation Access Glossary. 21CN: BT s upgrade of their core network (the backbone of the network). Next Generation Access Glossary 21CN: BT s upgrade of their core network (the backbone of the network). Access network: The part of the network that connects directly to customers from the local telephone

More information

ECE 510 -- Chapter 1

ECE 510 -- Chapter 1 ECE 510 -- Chapter 1 Definition: Digital Subscriber Line (DSL) Public network technology that delivers high bandwidth over conventional copper wiring at limited distances. There are four major types of

More information

ADSL BROADBAND BASICS FOR THE DOMESTIC USER. The Main Limitations of ADSL Broadband are as follows.

ADSL BROADBAND BASICS FOR THE DOMESTIC USER. The Main Limitations of ADSL Broadband are as follows. ADSL BROADBAND BASICS FOR THE DOMESTIC USER AS NOTHING MAN MADE IS PERFECT, ADSL IS NOT AN EXCEPTION. The Main Limitations of ADSL Broadband are as follows. 1. ADSL is not a Guaranteed Bandwidth Service.

More information

Broadcast digital subscriber lines using discrete multitone for broadband access

Broadcast digital subscriber lines using discrete multitone for broadband access Microprocessors and Microsystems 22 (1999) 605 610 Broadcast digital subscriber lines using discrete multitone for broadband access K.-P. Ho* Department of Informational Engineering, The Chinese University

More information

Introduction to Digital Subscriber Line Technology

Introduction to Digital Subscriber Line Technology An Overview of Digital Subscriber Line Technology Technology basics, DSL equipment, types of DSL, comparison with cable, use by customers and ehealth support Introduction to Digital Subscriber Line Technology

More information

Broadband Technology Clinic. Burlington Telecom Advisory Board

Broadband Technology Clinic. Burlington Telecom Advisory Board Broadband Technology Clinic Burlington Telecom Advisory Board 1 What are the Defining Characteristics of a Broadband Service? Speed - Throughput capability both down and upstream Performance - Latency

More information

Access to Data & Computer Networks Physical Level

Access to Data & Computer Networks Physical Level Lecture 7 Access to Data & Computer Networks Physical Level Serial Interface RS232C, RS232D RS449, X21 Modem Traditional Modem Intelligent modem Wireless Modem Digital Telephony T1 & E1 Systems SONET/SDH

More information

THE BCS PROFESSIONAL EXAMINATIONS BCS Level 5 Diploma in IT. October 2009 EXAMINERS' REPORT. Computer Networks

THE BCS PROFESSIONAL EXAMINATIONS BCS Level 5 Diploma in IT. October 2009 EXAMINERS' REPORT. Computer Networks THE BCS PROFESSIONAL EXAMINATIONS BCS Level 5 Diploma in IT October 2009 EXAMINERS' REPORT Computer Networks General Comments The responses to questions were of marginally better quality than April 2009

More information

Alcatel-Lucent : Customer Focussed Testing (CFT)

Alcatel-Lucent : Customer Focussed Testing (CFT) Alcatel-Lucent : Customer Focussed Testing (CFT) 1 Intro ivo.neyens@alcatel-lucent.com Intro Alcatel-Lucent claims industry-first 200 milion DSL line shipments Paris, March 4, 2010 Alcatel-Lucent (Euronext

More information

FAST TUTORIALS FOR TIME-CHALLENGED TECHNICIANS

FAST TUTORIALS FOR TIME-CHALLENGED TECHNICIANS Tech Notes from a Telephone Engineer FAST TUTORIALS FOR TIME-CHALLENGED TECHNICIANS POTS Dialtone Description: POTS Plain Old Telephone Service Long held industry acronym for standard dialtone service

More information

Next Generation of High Speed. Modems8

Next Generation of High Speed. Modems8 Next Generation of High Speed Modems High Speed Modems. 1 Traditional Modems Assume both ends have Analog connection Analog signals are converted to Digital and back again. Limits transmission speed to

More information

Radio/satellite HFC. FTTCab. FTTB/Curb. Local Exchange / HUB / POP P2MP MMDS LMDS. Radio base. Optical fiber. or copper pair

Radio/satellite HFC. FTTCab. FTTB/Curb. Local Exchange / HUB / POP P2MP MMDS LMDS. Radio base. Optical fiber. or copper pair Tutorial on Access Technologies Giancarlo De Marchis TelCon srl http://www.tel-con.com gdemarchis@tel-con.com ITU-T workshop Outside plant for the Access Network Hanoi 24 November 2003 Tutorial on Access

More information

Copper and Fiber Optic Cables

Copper and Fiber Optic Cables Copper and Fiber Optic Cables Pietro Nicoletti piero[at]studioreti.it Cables-Engl - 1 P. Nicoletti: see note pag. 2 Copyright note These slides are protected by copyright and international treaties. The

More information

Service description 1.12.2013

Service description 1.12.2013 1 (11) Sonera ODSL Ethernet Service description Company information TeliaSonera Finland Ltd. Teollisuuskatu 15, 00510 Helsinki Registered office: Helsinki Business ID 1475607-9, VAT No. FI14756079 Contact

More information

COMMITTEE T1 TELECOMMUNICATIONS Working Group T1E1.4 (DSL Access) Costa Mesa, California, March 8 12, 1999

COMMITTEE T1 TELECOMMUNICATIONS Working Group T1E1.4 (DSL Access) Costa Mesa, California, March 8 12, 1999 COMMITTEE T1 TELECOMMUNICATIONS Working Group T1E1.4 (DSL Access) Costa Mesa, California, March 8 1, 1999 T1E1.4/99-16 CONTRIBUTION TITLE: SOURCE*: PROJECT: Proposal for an Improved Upstream FEXT Model

More information

The effect of temperature on the bandwidth of telecommunications cabling in commercial buildings. Focus on the IBDN System 4800LX from NORDX/CDT

The effect of temperature on the bandwidth of telecommunications cabling in commercial buildings. Focus on the IBDN System 4800LX from NORDX/CDT The effect of temperature on the bandwidth of telecommunications cabling in commercial buildings Focus on the IBDN System 4800LX from NORDX/CDT Table of Contents Introduction... 3 Bandwidth and Information

More information

The art of deploying DSL, Broadband via noisy telephony wiring

The art of deploying DSL, Broadband via noisy telephony wiring The art of deploying DSL, Broadband via noisy telephony wiring Whitepaper on DSL Rob F.M. van den Brink, TNO, The Netherlands, Oct 29 Abstract 1 : The huge spread in crosstalk coupling between the individual

More information

ZHONE VDSL2 TECHNOLOGY. Access Technology for the Future. November 2009 CONTENTS

ZHONE VDSL2 TECHNOLOGY. Access Technology for the Future. November 2009 CONTENTS ZHONE VDSL2 TECHNOLOGY Access Technology for the Future November 2009 CONTENTS Introduction 2 VDSL2 technology 2 VDSL2 Deployments: Zhone findings 4 Zhone s VDSL2 solutions 6 Conclusion 8 Access for a

More information

Simulation Study on Internet Applications over DSL Access Network: KFUPM Campus as an Example

Simulation Study on Internet Applications over DSL Access Network: KFUPM Campus as an Example Simulation Study on Internet Applications over DSL Access Network: KFUPM Campus as an Example Uthman Baroudi, Saeed Bawazir and Wael Hamri Computer Engineering Department KFUPM, Dhahran Saudi Arabia Email:

More information