ETSI EN 300 462-6-1 V1.1.1 (1998-05)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 6-1: Timing characteristics of primary reference clocks33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 300 462-6-1 Version 1.1.1SIST EN 300 462-6-1 V1.1.1:2003en01-december-2003SIST EN 300 462-6-1 V1.1.1:2003SLOVENSKI
STANDARD



SIST EN 300 462-6-1 V1.1.1:2003



EN 300 462-6-1 V1.1.1 (1998-05)European Standard (Telecommunications series)Transmission and Multiplexing (TM);Generic requirements for synchronization networks;Part 6-1: Timing characteristics of primary reference clocksSIST EN 300 462-6-1 V1.1.1:2003



ETSIEN 300 462-6-1 V1.1.1 (1998-05)2ReferenceDE/TM-03017-6-1 (4a1i9ico.PDF)KeywordsSynchronization, transmission, SDHETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@etsi.frhttp://www.etsi.frhttp://www.etsi.orgCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998.All rights reserved.SIST EN 300 462-6-1 V1.1.1:2003



ETSIEN 300 462-6-1 V1.1.1 (1998-05)3ContentsIntellectual Property Rights.4Foreword.41Scope.62References.63Definitions and abbreviations.74Frequency accuracy.75Noise generation.75.1Wander.75.2Jitter.86Phase discontinuity.87Degradation of the performance of a PRC.98Interfaces.9Bibliography.10History.11SIST EN 300 462-6-1 V1.1.1:2003



ETSIEN 300 462-6-1 V1.1.1 (1998-05)4Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect ofETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSIWeb server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. Noguarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates on the ETSI Webserver) which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by the Transmission and Multiplexing (TM)Technical Committee.The present document has been produced to provide requirements for synchronization networks that are compatible withthe performance requirements of digital networks. It is one of a family of documents covering various aspects ofsynchronization networks:Part 1-1:"Definitions and terminology for synchronization networks";Part 2-1:"Synchronization network architecture";Part 3-1:"The control of jitter and wander within synchronization networks";Part 4-1:"Timing characteristics of slave clocks suitable for synchronization supply to Synchronous DigitalHierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment";Part 4-2:"Timing characteristics of slave clocks suitable for synchronization supply to Synchronous DigitalHierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment ImplementationConformance (ICS) Statement";Part 5-1:"Timing characteristics of slave clocks suitable for operation in Synchronous Digital Hierarchy(SDH) equipment";Part 6-1:"Timing characteristics of primary reference clocks";Part 6-2:"Timing characteristics of primary reference clocks Implementation Conformance (ICS)Statement";Part 7-1:"Timing characteristics of slave clocks suitable for synchronization supply to equipment in localnode applications".Parts 1-1, 2-1, 3-1 and 5-1 have previously been published as ETS 300 462 Parts 1, 2, 3 and 5, respectively.Additionally, parts 4-1 and 6-1 completed the Voting phase of the Two Step Approval procedure as ETS 300 462 Parts4 and 6, respectively.It was decided to prepare ICS proformas for several of the parts and this necessitated a re-numbering of the individualdocument parts. It was also decided to create a new part 7-1.This in turn led to a need to re-publish new versions of all six parts of the original ETS. At the same time, theopportunity was taken to convert the document type to EN.This has involved no technical change to any of the documents. However part 5-1 has been modified, due to editorialerrors which appeared in ETS 300 462-5.SIST EN 300 462-6-1 V1.1.1:2003



ETSIEN 300 462-6-1 V1.1.1 (1998-05)5National transposition datesDate of adoption of this EN:22 May 1998Date of latest announcement of this EN (doa):31 August 1998Date of latest publication of new National Standardor endorsement of this EN (dop/e):28 February 1998Date of withdrawal of any conflicting National Standard (dow):28 February 1998SIST EN 300 462-6-1 V1.1.1:2003



ETSIEN 300 462-6-1 V1.1.1 (1998-05)61ScopeThis European Standard (Telecommunications series) outlines requirements for Primary Reference Clocks (PRCs)suitable for synchronization supply to digital networks.NOTE:The requirements in the present document apply under environmental conditions according to one of theenvironmental classes defined in ETS 300 019 [1], unless stated otherwise. The manufacturer will need tospecify to which specific environmental class an equipment belongs.A typical PRC provides the reference signal for the timing or synchronization of other clocks within a network orsection of a network. The long-term accuracy of the PRC should be maintained at
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