SIST ETS 300 147 E3:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prenos in multipleksiranje (TM) – Sinhrona digitalna hierarhija (SDH) – Struktura multipleksiranjaTransmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); Multiplexing structure33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:ETS 300 147 Edition 3SIST ETS 300 147 E3:2003en01-december-2003SIST ETS 300 147 E3:2003SLOVENSKI
STANDARD



SIST ETS 300 147 E3:2003



EUROPEANETS 300 147TELECOMMUNICATIONApril 1997STANDARDThird EditionSource: ETSI TC-TMReference: RE/TM-03045ICS:33.020Key words:Transmission, mux, SDHTransmission and Multiplexing (TM);Synchronous Digital Hierarchy (SDH);Multiplexing structureETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.frTel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1997. All rights reserved.SIST ETS 300 147 E3:2003



Page 2ETS 300 147: April 1997Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Editing and Committee Support Dept." at the address shown on the title page.SIST ETS 300 147 E3:2003



Page 3ETS 300 147: April 1997ContentsForeword.51Scope.72Normative references.73Definitions, abbreviations and conventions.73.1Definitions.73.2Abbreviations.73.3Conventions.74Basic multiplexing principles.95Multiplexing method.106Pointers.117Overhead bytes description.128Mapping of tributaries into VC-n.139Conformance testing.14Annex A (informative):Bibliography.16History.17SIST ETS 300 147 E3:2003



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Page 5ETS 300 147: April 1997ForewordThis European Telecommunication Standard (ETS) has been produced by the Transmission andMultiplexing (TM) Technical Committee of the European Telecommunications Standards Institute (ETSI).This third edition of ETS 300 147 supersedes the second edition of ETS 300 147 (1995).This ETS provides inter-vendor and inter-operator compatibility and is based on ITU-T RecommendationG.707 [1].Transposition datesDate of adoption:7 March 1997Date of latest announcement of this ETS (doa):31 July 1997Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 January 1998Date of withdrawal of any conflicting National Standard (dow):31 January 1998SIST ETS 300 147 E3:2003



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Page 7ETS 300 147: April 19971ScopeThis European Telecommunication Standard (ETS) specifies the hierarchical bit rates, the multiplexingstructure and the mapping schemes to be used in the transmission networks based on the SynchronousDigital Hierarchy (SDH).2Normative referencesThis ETS incorporates by dated and undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references the latestedition of the publication referred to applies.[1]ITU-T Recommendation G.707 (1996): "Network node interface for thesynchronous digital hierarchy".[2]ITU-T Recommendation G.702: "Digital hierarchy bit rates".3Definitions, abbreviations and conventions3.1DefinitionsFor the purposes of this ETS, the definitions given in section 3 of the ITU-T Recommendation G.707 [1]apply.3.2AbbreviationsFor the purposes of this ETS the following abbreviations apply:AISAlarm Indication SignalAPSAutomatic Protection SwitchingATMAsynchronous Transfer ModeAU-nAdministrative Unit-nAUGAdministrative Unit GroupBIP-XBit Interleaved Parity-XDCCData Communication ChannelMS-RDIMultiplex Section Remote Defect IndicationMS-REIMultiplex Section Remote Error IndicationNNINetwork Node InterfacePOHPath OverHeadSDHSynchronous Digital HierarchySOHSection OverHeadSTM(-N)Synchronous Transport Module (-N)TU-nTributary Unit-nTUG(-n)Tributary Unit Group (-n)VC-nVirtual Container-n3.3ConventionsThe order of transmission of information in all diagrams in the ITU-T Recommendation G.707 [1] is firstfrom left to right and then from top to bottom. Within each byte, the most significant bit is transmitted first.The most significant bit (bit 1) is illustrated at the left in all diagrams.SIST ETS 300 147 E3:2003



Page 8ETS 300 147: April 1997In clauses 4 to 8, the status of each requirement is given with reference to the ITU-T RecommendationG.707 [1] with the following conventions:Normative (N): Requirements with which it is necessary to comply in order to be able to claim compliancewith this ETS.Not Relevant (N/R): Section/subsection (of ITU-T Recommendation G.707 [1]) is not relevant to this ETS.This ETS is not an equipment specification. The fact that a requirement is defined as normative does notimply that the associated function has to be implemented but means that, if implemented, the functionshall be implemented in accordance with this requirement.SIST ETS 300 147 E3:2003



Page 9ETS 300 147: April 19974Basic multiplexing principlesThe basic multiplexing principles are as given in section 6 of ITU-T Recommendation G.707 [1] togetherwith the following statements and modifications:Table 1: Modifications and statements to section 6 of ITU-T Recommendation G.707 [1]SectionTitleRequirement6Basic Multiplexing Principle6.1Multiplexing StructureN/RThe basic SDH multiplexing structure shall be as described in figure 1. ThisSDH multiplexing structure is a subset of the SDH multiplexing structuredefined in the section 6.1 of ITU-T Recommendation G.707 [1].6.2Basic Frame Structure6.2.1Section overheadN6.2.2Administrative Unit PointersN6.2.3Administrative Units in the STM-NNIn this subsection, reference to AU-3 is N/R6.2.4Maintenance SignalsN6.2.4.1Alarm indication signals6.2.4.1.1MS-AISN6.2.4.1.2AU-TU-AISN6.2.4.1.3VC-AISN6.2.4.2Unequipped VC-n signal6.2.4.2.1Case of network supporting the transport of Tandem Connection SignalsN6.2.4.2.2Case of network not supporting the transport of Tandem Connection SignalsN/R6.2.4.3Supervisory-unequipped VC-n signal6.2.4.3.1Case of network supporting the transport of Tandem Co
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