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ETSI TS 101 135

ETSI TS 101 135
ETSI TS 101 135 English PDF Transmission and Multiplexing (TM); High bit-rate Digital Subscriber Line (HDSL) transmission systems on metallic local lines; HDSL core specification and applications for combined ISDN-BA and 2 048 kbit/s transmission

standard published 11/01/1998 by European Telecommunications Standards Institute

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This work item studies the problems involved in combining the transmission of ISDN-BA (or POTS) and 2048kbit/s data transmission over HDSL transmission systems. The output of the work item shall be the addition of a new sub-clause 7.7 for insertion in a version 1.5.1 of TS 101 135 V1.4.1. The purpose of this work item is to allow the problems involved in combining 2048kbit/s and ISDN-BA (or POTS) to be solved separately from the work being carried out under TS 101 135 V1.4.1, and if necessary to find a solution that would not be permitted within the scope of ETR152, for example a modification of the basic HDSL core frame structure. This allows TS 101 135 V1.4.1 to be completed according to schedule, and allows sufficient time to find an optimum solution for embedding ISDN-BA in HDSL systems.

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Edition: 1.5.1 Published: 11/01/1998 Number of Pages: 173

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