SIST EN 300 462-4-2 V1.1.1:2003
(Main)Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 4-2: Timing characteristics of slave clocks suitable for synchronization supply to Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment; Implementation Conformance Statement (ICS) proforma specification
General Information
- Abstract
Stadardises SDH timing distribution architectures, synchronisation network level jitter and wander requirements, slave clock timing specifications and primary reference clock specifications.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
Overview
SIST EN 300 462-4-2 V1.1.1:2003 defines the Implementation Conformance Statement (ICS) proforma for synchronization networks within digital transmission systems. This European standard, adopted by SIST and developed by ETSI, specifically focuses on timing characteristics of slave clocks used as synchronization supply units (SSUs) for Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment. It provides a standardized template for suppliers to indicate how their implementations comply with the synchronization requirements as outlined in EN 300 462-4-1.
Ensuring precise synchronization is critical for telecommunications networks where consistent timing is essential for error-free data transmission, interoperability, and network stability. This standard supports equipment manufacturers, network operators, and testing laboratories in confirming and documenting that SSUs meet rigorous performance and reliability criteria.
Key Topics
- Synchronization Networks: Defines generic requirements and conformance for synchronization supply in transmission systems using SDH and PDH technologies.
- Timing Characteristics of Slave Clocks: Outlines requirements for performance attributes such as jitter, wander, output noise, input tolerance, and holdover capabilities of SSUs.
- Implementation Conformance Statement (ICS): Offers a structured proforma for suppliers to state which synchronization features and options have been realised within a given product or system.
- Testing Methodology: Specifies the way to validate conformance, referencing international best practices and supporting the use of standardized test equipment and procedures.
- Interoperability Assurance: Promotes compatibility between vendors and systems by standardizing which features are mandatory, optional, or not applicable in SSUs.
- Documentation Consistency: Ensures that implementation details, supplier information, and compliance statements are reported in a clear, repeatable format for regulatory and contractual verification.
Applications
SIST EN 300 462-4-2 V1.1.1:2003 is widely used across the telecommunications sector for the following purposes:
- Telecom Equipment Manufacturing: Suppliers of SDH and PDH equipment use this standard to document and prove that their SSU timing devices conform to European requirements.
- Network Integration: Supports network operators in evaluating synchronization-capable equipment for deployment in core and access network environments, improving network timing consistency.
- Testing and Certification: Provides testing laboratories and certifiers with a standardized checklist for verifying equipment conformity, streamlining the assessment process.
- Procurement and Compliance: Assists service providers and system integrators in selecting compliant equipment, ensuring end-to-end network synchronization and minimizing interoperability risks.
- Quality Assurance: Enhances internal development processes by giving manufacturers a reference to verify that slave clocks in their products meet specified jitter, wander, and holdover performance metrics.
Practical examples include the use of the ICS proforma during network rollouts, system upgrades, or when certifying new telecommunications equipment for SDH or PDH networks.
Related Standards
For a comprehensive approach to synchronization network requirements and testing, consider these related standards:
- EN 300 462-1-1: Transmission and Multiplexing - Definitions and terminology for synchronization networks.
- EN 300 462-2-1: Synchronization network architecture.
- EN 300 462-3-1: Control of jitter and wander within synchronization networks.
- EN 300 462-4-1: Timing characteristics of slave clocks suitable for synchronization supply to SDH and PDH equipment (technical requirements referenced by the ICS).
- EN 300 462-5-1: Timing characteristics of slave clocks for operation in SDH equipment.
- EN 300 462-6-1: Timing characteristics of primary reference clocks.
- ETS 300 406 / ISO/IEC 9646-7: Protocol and profile conformance testing specifications, providing methodology for completing ICS statements.
- ITU-T Recommendation O.172: Guidelines for jitter and wander measurement of SDH-based digital systems.
By adhering to SIST EN 300 462-4-2 V1.1.1:2003, organizations can ensure robust network synchronization, facilitate interoperability, and streamline the compliance assessment of slave clock implementations in digital hierarchy environments.
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Frequently Asked Questions
SIST EN 300 462-4-2 V1.1.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 4-2: Timing characteristics of slave clocks suitable for synchronization supply to Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment; Implementation Conformance Statement (ICS) proforma specification". This standard covers: Stadardises SDH timing distribution architectures, synchronisation network level jitter and wander requirements, slave clock timing specifications and primary reference clock specifications.
Stadardises SDH timing distribution architectures, synchronisation network level jitter and wander requirements, slave clock timing specifications and primary reference clock specifications.
SIST EN 300 462-4-2 V1.1.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.040.20 - Transmission systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 462-4-2 V1.1.1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 4-2: Timing characteristics of slave clocks suitable for synchronization supply to Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment; Implementation Conformance Statement (ICS) proforma specification33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 300 462-4-2 Version 1.1.1SIST EN 300 462-4-2 V1.1.1:2003en01-december-2003SIST EN 300 462-4-2 V1.1.1:2003SLOVENSKI
STANDARD
ETSIEN300462-4-2V1.1.1(1999-12)EuropeanStandard(Telecommunicationsseries)TransmissionandMultiplexing(TM);Genericrequirementsforsynchronizationnetworks;Part4-2:TimingcharacterizticsofslaveclockssuitableforsynchronizationsupplytoSynchronousDigitalHierarchy(SDH)andPlesiochronousDigitalHierarchy(PDH)equipment;ImplementationConformanceStatement(ICS)proformaspecificationSIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)2ReferenceDEN/TM-01057-4-2KeywordsICS,synchronization,transmission,SDH,PDH,testingETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute1999.Allrightsreserved.SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)3ContentsIntellectualPropertyRights.4Foreword.4Introduction.51Scope.62References.63Definitions,symbolsandabbreviations.73.1Definitions.73.2Symbols.73.3Abbreviations.74ConformancetothisICSproformaspecification.8AnnexA(normative):ICSproformaguidance.9A.1GuidanceforcompletingtheICSproforma.9A.1.1Purposesandstructure.9A.1.2Abbreviationsandconventions.9A.1.3InstructionsforcompletingtheICSproforma.11AnnexB(normative):ICSproformaforEN300462-4-1,TimingcharacteristicsofslaveclocksforsynchronizationsupplytoSDHandPDHequipment.12B.1Identificationoftheimplementation.12B.1.1Dateofthestatement.12B.1.2ImplementationUnderTest(IUT)identification.12B.1.3SystemUnderTest(SUT)identification(ifappropriate).12B.1.4Productsupplier.13B.2IdentificationoftheEN.13B.3Globalstatementofconformance.13B.4SSUICSproforma.14B.4.1SSUdescription.14B.4.1.1SSUinterfacedescription.14B.4.2SSUinputtolerance.14B.4.3SSUoutputnoisegenerationinlockedmode.16B.4.4SSUtransfercharacteristic.16B.4.5SSUtransientresponseandholdoverperformance.17History.18SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeTransmissionandMultiplexing(TM).Part1-1:"Definitionsandterminologyforsynchronizationnetworks";Part2-1:"Synchronizationnetworkarchitecture";Part3-1:"Thecontrolofjitterandwanderwithinsynchronizationnetworks";Part4-1:"TimingcharacteristicsofslaveclockssuitableforsynchronizationsupplytoSynchronousDigitalHierarchy(SDH)andPlesiochronousDigitalHierarchy(PDH)equipment";Part4-2:"TimingcharacteristicsofslaveclockssuitableforsynchronizationsupplytoSynchronousDigitalHierarchy(SDH)andPlesiochronousDigitalHierarchy(PDH)equipment;ImplementationConformanceStatement(ICS)proformaspecification";Part5-1:"TimingcharacteristicsofslaveclockssuitableforoperationinSynchronousDigitalHierarchy(SDH)equipment";Part6-1:"Timingcharacteristicsofprimaryreferenceclocks";Part6-2:"Timingcharacteristicsofprimaryreferenceclocks;ImplementationConformanceStatement(ICS)proformaspecification";Part7-1:"Timingcharacteristicsofslaveclockssuitableforsynchronizationsupplytoequipmentinlocalnodeapplications".Parts1-1,2-1,3-1,4-1,5-1and6-1havebeenpublishedasEN300462Parts1-1,2-1,3-1,4-1,5-1and6-1,respectively.AllpreviousETSshavebeenwithdrawn.NationaltranspositiondatesDateofadoptionofthisEN:10December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)5IntroductionToevaluateconformanceofaparticularimplementation,itisnecessarytohaveastatementofwhichcapabilitiesandoptionshavebeenimplementedforatelecommunicationspecification.SuchastatementiscalledanImplementationConformanceStatement(ICS).TheICSproformaisnotanothercompletedescriptionoftherelatedspecification,butratheracompactformofitsstaticconformancerequirements,tobeusedbythetestlaboratorytoidentifywhichtestshallbeperformedonagivenimplementation.NoteveryfeatureofaprofilespecificationiscontainedintherelatedICSproforma.ForparticularcasesrequiringspecificinformationtheICScanrefertotheappropriateclauseoftherelatedspecificationbymeansofreferences,notesandorcomments.SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)61ScopeThepresentdocumentprovidestheImplementationConformanceStatement(ICS)proformaspecificationforthesynchronizationnetworkgenericrequirementsdefinedinEN300462-4-1[4]incompliancewiththerelevantrequirements,andinaccordancewiththerelevantguidancegiveninISO/IEC9646-7[9]andETS300406[7].2ReferencesThefollowingdocumentscontainprovisions,whichthroughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,thelatestversionapplies.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]EN300462-1-1:"TransmissionandMultiplexing(TM);Genericrequirementsforsynchronisationnetworks;Part1:Definitionsandterminologyforsynchronisationnetworks".[2]EN300462-2-1:"TransmissionandMultiplexing(TM);Genericrequirementsforsynchronizationnetworks;Part2-1:Synchronizationnetworkarchitecture".[3]EN300462-3-1:"TransmissionandMultiplexing(TM);Genericrequirementsforsynchronizationnetworks;Part3-1:Thecontrolofjitterandwanderwithinsynchronizationnetworks".[4]EN300462-4-1:"TransmissionandMultiplexing(TM);Genericrequirementsforsynchronizationnetworks;Part4-1:TimingcharacteristicsofslaveclockssuitableforsynchronizationsupplytoSynchronousDigitalHierarchy(SDH)andPlesiochronousDigitalHierarchy(PDH)equipment".[5]EN300462-5-1:"TransmissionandMultiplexing(TM);Genericrequirementsforsynchronizationnetworks;Part5-1:TimingcharacteristicsofslaveclockssuitableforoperationinSynchronousDigitalHierarchy(SDH)equipment".[6]EN300462-6-1:"TransmissionandMultiplexing(TM);Genericrequirementsforsynchronizationnetworks;Part6-1:Timingcharacteristicsofprimaryreferenceclocks".[7]ETS300406(1995):"MethodsfortestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;Standardizationmethodology".[8]ISO/IEC9646-1(1994):"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part1:Generalconcepts".[9]ISO/IEC9646-7(1995):"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part7:ImplementationConformanceStatements".[10]ITU-TRecommendationO.172:"Jitterandwandermeasuringequipmentfordigitalsystemswhicharebasedonthesynchronousdigitalhierarchy(SDH)".SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)73Definitions,symbolsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:-termsdefinedinEN300462[1]to[6];-termsdefinedinISO/IEC9646-1[8]andinISO/IEC9646-7[9].Inparticular,thefollowingtermsdefinedinISO/IEC9646-1[8]apply:ImplementationConformanceStatement(ICS):statementmadebythesupplierofanimplementationorsystemclaimedtoconformtoagivenspecification,statingwhichcapabilitieshavebeenimplemented.TheICScantakeseveralforms:protocolICS,profileICS,profilespecificICS,informationobjectICS,etcICSproforma:document,intheformofaquestionnaire,whichwhencompletedforanimplementationorsystembecomesanICS3.2SymbolsForthepurposesofthepresentdocument,thefollowingsymbolsapply:KKelvinτTau3.3AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ICSImplementationConformanceStatementIUTImplementationUnderTestMTIEMaximumTimeIntervalErrorPDHPlesiochronousDigitalHierarchyppmpartspermillionSASEStandAloneSynchronizationEquipmentSCSSystemConformanceStatementSDHSynchronousDigitalHierarchySSUSynchronizationSupplyUnitSTM-NSynchronousTransportModule-NSUTSystemUnderTestTDEVTimeDEViationUIUnitIntervalUIppUnitIntervalpeaktopeakAfulllistofabbreviationsusedintimingandsynchronizationislistedinEN300462-1-1[1].SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)84ConformancetothisICSproformaspecificationIfitclaimstoconformtothepresentdocument,theactualICSproformatobefilledinbyasuppliershallbetechnicallyequivalenttothetextoftheICSproformagiveninannexA,andshallpreservethenumbering/namingandorderingoftheproformaitems.AnICS,whichconformstothepresentdocumentshallbeaconformingICSproformacompletedinaccordancewiththeguidanceforcompletiongiveninclauseA.1.InstrumentationinaccordancewithITU-TRecommendationO.172[10]isappropriateforverifyingconformancetothesespecifications.SIST EN 300 462-4-2 V1.1.1:2003
ETSIETSIEN300462-4-2V1.1.1(1999-12)9AnnexA(normative):ICSproformaguidanceNotwithstandingtheprovisionsofthecopyrightclauserelatedtothetextofthepresentdocument,ETSIgrantsthatusersofthepresentdocumentmayfreelyreproducetheICSproformainthisannexsothatitcanbeusedforitsintendedpurposesandmayfurtherpublishthecompletedICS.A.1GuidanceforcompletingtheICSproformaA.1.1PurposesandstructureThepurposeofthisICSproformaistoprovideamechanismwherebyasupplierofanimplementationoftherequirementsdefinedinEN300462-4-1mayprovideinformationabouttheimplementationinastandardizedmanner.TheICSproformaissubdividedintosubclausesforthefollowingcategoriesofinformation:-guidanceforcompletingtheICSproforma;-identificationoftheimplementation;-identificationoftheEN;-globalstatementofconformance.A.1.2AbbreviationsandconventionsTheICSproformacontainedinannexesofthepresentdocumentiscomprisedofinformationintabularforminaccordancewiththeguidelinespresentedinISO/IEC9646-7.ItemcolumnTheitemcolumncontainsanumberwhichidentifiestheiteminthetable.ItemdescriptioncolumnTheitemdescriptioncolumndescribesinfreetexteachrespectiveitem(e.g.parameters,timers,etc.).Itimplicitlymeans"issupportedbytheimplementation?".StatuscolumnThefollowingnotations,definedinISO/IEC9646-7,areusedforthestatuscolumn:mmandatory-thecapabilityisrequiredtobesupported.ooptional-thecapabilitymaybesupportedornot.n/anotapplicable-inthegivencontext,itisimpossibletousethecapability.xprohibited(excluded)-thereisarequirementnottousethiscapabilityinthegivencontext.o.iqualifiedoptional-formutuallyexclusiveorselectableoptionsfromaset."i"isanintegerwhichidentifiesanuniquegroupofrelatedoptionalitemsandthelogicoftheirselectionwhichisdefinedimmediatelyfollowingthetable.ciconditional-therequirementonthecapability("m","o","x"or"n/a")dependsonthesupportofother
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