IEC ISO ISO/IECTR14165-117 Edition 1.02007-09 TECHNICAL REPORT Information technology - Fibre channel - Part 117: Methodologies for jitter and signal quality (MJSQ) ISO/IEC TR 14165-117:2007(E) THISPUBLICATIONIS COPYRIGHTPROTECTED Copyright @ 2007 ISO/lEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about ISO/lEc copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office 3, rue de Varembé CH-1211 Geneva 20 Switzerland Email: [email protected] Web:www.iec.ch About the IEC International Standards for all electrical, electronic and related technologies. About IEC publications latest edition, a corrigenda or an amendment might have been published. - Catalogue of IEC publications: www.iec.ch/searchpub The IEc on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee...). It also gives information on projects, withdrawn and replaced publications. - IEC Just Published: www.iec.ch/online news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by email. - Electropedia: www.electropedia.org The world's leading online dictionary of electronic and electrical terms containing more than 2o ooo terms and definitions Vocabulary online. CustomerServiceCentre:www.iec.ch/webstore/custsery Centre FAQ or contact us: Email: [email protected] Tel.: +4122 919 02 11 Fax:+41229190300 TEC ISO ISO/IECTR 14165-117 Edition 1.0 2007-09 TECHNICAL REPORT Information technology-Fibre channel - Part 117: Methodologies for jitter and signal quality (MJSQ) INTERNATIONAL ELECTROTECHNICAL COMMISSION PRICE CODE XE ICS 35.000 ISBN 2-8318-9290-2 TR 14165-117@ISO/EC:2007(E) - 4- Contents Foreword 14 1 Scope . . 17 2 Normative references 18 2.1 Approved references 2.2 Other references 18 3 Definitions and conventions 18 3.1 Overview 18 3.2 Conventions 3.3 Keywords 19 3.4 Acronyms 19 3.5 Terms and definitions 4 Background for MJSQ 27 4.1 Overview .. 27 4.2 Relationship to SONET and receiver tolerance requirements 27 4.3 Relationship to earlier FC standards . : : 4.4 Traditional measurement methodology risks 29 5 Jitter overview ... 30 5.1 Serial transmissions 5.2 Jitter output context . 31 5.3 Jitter tolerance context 5.4 Jitter assumptions summary 32 5.5 FC-0 and MJS(-1) interface overview 5.6 Fibre channel physical architecture . 6 Jitter fundamentals . . 37 6.1 Purpose of addressing all important signal levels 6.2 Essential properties of signals 6.2.1 Introduction 6.2.2 Signal amplitude versus signal level 37 6.2.3 Time, timing reference and jitter timing reference . . . . 6.2.4 Considerations when using hardware based jitter timing references 6.2.5 Jitter and noise relationship 38 6.2.6 Rising edges and falling edges .39 6.3 Number of events per bit-period 39 6.4 Statistical distribution at a specific signal level 6.5 Basic relationships within statistical jitter distributions 41 6.5.1 Overview .... 41 6.5.2 Description of mathematical model 6.5.3 Relationship between jitter and BER for random jitter distributions 44 6.5.4 Effects of changing the standard deviation for Gaussian PDF's . 6.5.5 Common mistakes relating to statistical properties of measurements. 46 6.5.6 Addition of deterministic jitter . .46 6.6 Jitter eye mask methodology for signal quality specification . 6.7 Signal measurements versus jitter eye mask signal quality specifications . 51 6.8 Jitter timing reference at different signal levels during data acquisition . 6.9 Example of a 2-dimensional jitter measu