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ETSI TS 101 388
M00000129
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ETSI TS 101 388 Access Terminals Transmission and Multiplexing (ATTM); Access transmission systems on metallic access cables; Asymmetric Digital Subscriber Line (ADSL) - European specific requirements [ITU-T Recommendation G.992.1 modified]
standard by European Telecommunications Standards Institute, 08/01/2007
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The present document specifies European requirements for ADSL.The definition of new line codes and/or transmission systems is outside the scope of the present document.
The present document endorses ITU-T Recommendation G.992.1 [2], the contents of which apply together with the addition of the modifications being covered herein. In particular the aspects covered by the present document are related to: Methods to allow the simultaneous delivery of ADSL and ISDN-BA services [1] on the single pair. Forexample the techniques and redefinition of the ADSL signals/parameters as defined inITU-T Recommendation G.992.1 [2] to allow ISDN-BA base band signals to occupy frequencies below ADSL(from here onwards referred as out-of-band transport). Performance Objectives and Test methods for ADSL over POTS/ISDN-BA. TS 102 080 [1] backward compatibility. Power feeding for the transported ISDN-BA. Latency. ISDN-BA splitter characteristics.