Table of Contents

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 General
   4.1 Background
   4.2 DSL system types
5 Technical issues
   5.1 Interaction of POTS terminal equipment on xDSL
       systems
   5.2 Interaction of xDSL systems on POTS
   5.3 Impact of "home LANS" on POTS and xDSL
   5.4 Impact of EMC induced signals
   5.5 Use of filters
6 Cost implications
7 Regulatory issues
   7.1 General
   7.2 EU legislation in place
   7.3 EU legislation addressing compatibility of POTS
       terminal equipment with xDSL systems
8 Spectrum management
   8.1 Spectrum management of the access network
   8.2 Spectrum management of the user network
9 Standards
   9.1 Requirements for xDSL compatible POTS terminals
   9.2 POTS/ADSL splitter filter requirements
   9.3 Requirements for distributed filters
   9.4 Requirements for homeLAN filters
   9.5 Spectrum management of user installations
10 Conclusions and recommendations
   10.1 Conclusions
   10.2 Recommendations
Annex A (informative): Crosstalk
Annex B (informative): Out-of-band sending limits for
        POTS terminals
Annex C (informative): The effect of Splitters on
        Sidetone and Echo Loss
    C.1 Impedance Transparency
    C.2 The influence of inserting splitters on the
        STMR
    C.3 The influence of splitters on the "echo loss"
        of the local exchange hybrid
    C.4 The effect of splitters on older equipment
    C.5 Conclusions
Annex D (informative): Reference impedances for
        POTS Splitters
History

Abstract

Reviews technical issues on the mutual compatibility of current and future POTS terminal equipment with xDSL systems operating at frequencies up to 30 MHz. The report will consider both TE intended to support simultaneous operation with xDSL on the same cable pair and TE co-existing with xDSL systems in the same access cables.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	ATA C