1 Scope
2 References
3 Definitions
4 Abbreviations
5 Conventions
6 General considerations
6.1 Objectives
6.2 ISDN/xDSL technologies
6.3 ISDN/xDSL: Technical problems
6.4 Transmission medium
7 Recommended DLL requirements for ISDN/xDSL
7.1 Minimum digital local line requirements for ISDN/xDSL
7.2 Digital local line physical characteristics
7.3 Principal electrical and transmission characteristics for ISDN/xDSL
services and systems
7.4 Use of a multi-pair copper network cable supporting shared
multiple services such as POTS, ISDN and xDSL
Appendix I – Bridge taps: Effect of the loss due to the length of a bridge
tap
I.1 Effect of BT loss in ISDN
I.2 Effect of BT loss in HDSL systems
I.3 Effect of BT loss in ADSL and UADSL
Appendix II – France Telecom experience
II.1 Mass deployment of ADSL: Loop qualification
process
II.2 Maximum reach of ADSL systems
II.3 Field quality tests of the copper pair
Appendix III – India experience
Appendix IV – Brazil experience
IV.1 Introduction
IV.2 Local loop requirements