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1、IEEE Std C37.94-2002 IEEE Standards C37.94 TM IEEE Standard for N Times 64 Kilobit Per Second Optical Fiber Interfaces Between Teleprotection and Multiplexer Equipment Published by The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA 31 March 2003 I
2、EEE Power Engineering Society Sponsored by the Power System Relaying Committee and Power System Communications Committee IEEE Standards Print: SH95027 PDF: SS95027 Authorized licensed use limited to: Tsinghua University Library. Downloaded on December 25,2010 at 12:49:40 UTC from IEEE Xplore. Restri
3、ctions apply. Recognized as an American National Standard (ANSI) The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2003 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 31 March 2003. Printed
4、 in the United States of America. Print: ISBN 0-7381-3375-6 SH95027 PDF: ISBN 0-7381-3376-0 SS95027 No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. IEEE Std C37.94 -2002 IEEE Standard fo
5、r N Times 64 Kilobit Per Second Optical Fiber Interfaces Between Teleprotection and Multiplexer Equipment Sponsor Power System Relaying Committee and Power System Communications Committee of the IEEE Power Engineering Society Approved 21 January 2003 American National Standards Institute Approved 12
6、 September 2002 IEEE-SA Standards Board Abstract: An optical interface for use between teleprotection and digital multiplexer equipment that can operate at a data rate of N times 64 kilobit per second where N = 1, 212 is described. Requirements for both physical connection and the communications tim
7、ing are also included. Keywords: alarm indication signal, bit error rate, cyclic redundancy check, loss of frame, loss of signal, multimode optical fiber, multiplexer,remote defect indication, teleprotection, unit interval Authorized licensed use limited to: Tsinghua University Library. Downloaded o
8、n December 25,2010 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of the IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through a consensus develop
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25、0 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. Copyright 2003 IEEE. All rights reserved. iii Introduction (This introduction is not part of IEEE C37.94-2002, IEEE Standard for N times 64 Kilobit per Second Optical Fiber Interfaces between Teleprotection and Multiplexer Equipment.) Existing
26、interface standards between teleprotection equipment and multiplexers are electrical only. These low-energy signal interfaces are susceptible to intra-substation electromagnetic interference (EMI). The use of dedicated optical fi bers for the intra-substation communication links between teleprotecti
27、on equipment and multiplexers eliminates the data corruption common to electrical connections. Participants At the time this standard was completed, the Working Group of the Power System Relaying Committee (PSRC) had the following membership: Gary Michel, Chair At the time this standard was complete
28、d, the Digital Teleprotection Working Group of the Power System Communications Committee (PSCC) had the following membership: Gary Michel, Chair Mark Adamiak Ken Behrendt John Burger Ken Fodero Jeffrey Gilbert William Higinbotham Kevin Hill Chris Huntley Tim Phillippe Roger Ray Carlos Samitier Mark
29、Simon Veselin Skendzic Robert Bratton Terence Burns Tom Dahlin Chris Huntley Roger Ray Miriam Sanders Authorized licensed use limited to: Tsinghua University Library. Downloaded on December 25,2010 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. iv Copyright 2003 IEEE. All rights reserved. The
30、 following members of the balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. When the IEEE-SA Standards Board approved this standard on 12 September 2002, it had the following membership: James T. Carlo, Chair James H. Gurney, Vice Chair Ju
31、dith Gorman, Secretary *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Alan Cookson, NIST Representative Satish K. Aggarwal, NRC Representative Michelle D. Turner IEEE Standards Project Editor William Ackerman Mark Adamiak Kenneth Behrendt Robert Bratton
32、Gustavo Brunello John F. Burger Terrence Burns Guru Duttdhingra Thomas Dahlin Michael Dood Paul Drum Kenneth Fodero Jeffrey Gilbert Tony Giuliante William Higinbotham Jerry Hohn Dennis Holstein James D. Huddleston, III Chris Huntley Terry Krummrey Robert Landman Gregory Luri Kenneth Martin Jesus Mar
33、tinez Jeff McElray Gary Michel John Newbury Gary L Nissen Daniel Nordell Paul Pillitteri Roger Ray James Ruggieri Carlos Samitier Miriam Sanders Holger Schubert Mark S. Simon H. Lee Smith John Tengdin John Thorson, Jr. Demetrios Tziouvaras Eric Udren John Viaplana Philip Winston Sid Bennett H. Steph
34、en Berger Clyde R. Camp Richard DeBlasio Harold E. Epstein Julian Forster* Howard M. Frazier Toshio Fukuda Arnold M. Greenspan Raymond Hapeman Donald M. Heirman Richard H. Hulett Lowell G. Johnson Joseph L. Koepfi nger* Peter H. Lips Nader Mehravari Daleep C. Mohla William J. Moylan Malcolm V. Thade
35、n Geoffrey O. Thompson Howard L. Wolfman Don Wright Authorized licensed use limited to: Tsinghua University Library. Downloaded on December 25,2010 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. Copyright 2003 IEEE. All rights reserved. v Contents 1.Overview1 1.1 Scope 1 1.2 Purpose. 1 2.Refe
36、rences 1 3.Definitions and abbreviations 2 3.1 Definitions 2 3.2 Acronyms. 2 4.Frame structure 2 4.1 Header 3 4.2 Overhead data 4 4.3 Channel data. 4 4.4 Path frame alignment. 4 5.Communication failure scenarios 4 5.1 Loss of signal (LOS) 4 5.2 Signal failure actions 4 5.3 Path “yellow” detection. 5
37、 5.4 Link failure response 5 6.Clock timing. 6 6.1 Frequency. 6 6.2 Jitter 6 6.3 Wander. 7 7.Optical transmitter output 7 7.1 Level 7 7.2 Wavelength 7 8.Optical receiver sensitivity 7 8.1 Operating range 7 9.Optical connectors . 7 Annex A (informative) Fiber optics. 8 Annex B (informative) Harmoniza
38、tion with other standards 10 Annex C (informative) Bibliography. 12 Authorized licensed use limited to: Tsinghua University Library. Downloaded on December 25,2010 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. Authorized licensed use limited to: Tsinghua University Library. Downloaded on Dec
39、ember 25,2010 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. Copyright 2003 IEEE. All rights reserved. 1 IEEE Standard for N Times 64 Kilobit Per Second Optical Fiber Interfaces Between Teleprotection and Multiplexer Equipment 1. Overview 1.1 Scope This standard describes the interconnection
40、details for N, where N = 1, 212, times 64 kilobit per second connections of teleprotection equipment to digital multiplexers using optical fi ber. Requirements for both physical connection and the communications timing are also included. 1.2 Purpose The purpose of this standard is to allow the inter
41、connection of different vendors teleprotection equipment with different vendors multiplexer equipment, without any restriction on the content of the N times 64 kilobit per second data using up to 2 km of 50 or 62.5 micrometer multimode optical fi ber. 2. References The following standard contains pr
42、ovisions, which through reference in this text constitute provisions of this standard. At the time of this publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this stardard are encouraged to investigate the possibility of applying
43、 the most recent editions of the standards indicated below. Members of the IEC and ISO maintain registers of currently valid International Standards. IEC-60874-10-1 (1997-06) Connectors for optical fi bres and cables Part 10-1: Detail specifi cation for fi bre optic connector type BFOC/2.5 terminate
44、d to multimode fi bre type A1. 1 1 IEC publications are available from the Sales Department of the International Electrotechnical Commission, Case Postale 131, 3, rue de Varemb, CH-1211, Genve 20, Switzerland/Suisse (http:/www.iec.ch/). IEC publications are also available in the United States from t
45、he Sales Department, American National Standards Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036, USA. Authorized licensed use limited to: Tsinghua University Library. Downloaded on December 25,2010 at 12:49:40 UTC from IEEE Xplore. Restrictions apply. IEEE Std C37.94-2002IEEE STANDAR
46、D FOR N TIMES 64 KILOBIT PER SECOND OPTICAL FIBER 2 Copyright 2003 IEEE. All rights reserved. 3. Defi nitions and acronyms 3.1 Defi nitions For the purposes of this standard, the following terms and defi nitions apply. The IEEE Authoritative Dictionary of IEEE Standards Terms , Seventh Edition B2 2
47、, should be used for terms not defi ned in this clause. 3.1.1 jitter: A term used to describe perturbations in the timing of data bit transitions when the frequency of the perturbations is greater than 10 Hz. 3.1.2 multimode optical fi ber: An optical fi ber that has a relatively large core, in whic
48、h light bounces off the walls of the core. This results in multiple signal paths through the fi ber, which limits the maximum signaling rate more and more as the fi ber length increases. 3.1.3 multiplexer equipment: A device that allows the transmission of a number of different signals simultaneousl
49、y over a single channel or transmission facility. 3.1.4 teleprotection equipment : Equipment that provides the interface between the protective relay and a communications circuit. 3.1.5 unit interval (UI): Time duration equal to the reciprocal of the bit rate. 3.1.6 wander: A term used to describe perturbations in the timing of data bit transitions when the frequency of the perturbations is less than 10 Hz. 3.2 Acronyms BERbit error rate CRC cyclic redundancy check LOSloss of signal LOFloss of frame ppmparts per million RDIremote defect indication 4. Frame structure Th