IEC_61603-6-2001.pdf

INTERNATIONALSTANDARDIEC61603-6First edition2001-10Transmission of audio and/or video andrelated signals using infra-red radiation Part 6:Video and audio-visual signalsReference numberIEC 61603-6:2001(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,thebase publication incorporating amendment 1 and the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating tothis publication,including its validity,is available in the IEC Catalogue ofpublications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(www.iec.ch/catlg-e.htm)enablesyou to search by a variety of criteria including text searches,technicalcommittees and date of publication.On-line information is also available onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just PublishedThis summary of recently issued publications(www.iec.ch/JP.htm)is alsoavailable by email.Please contact the Customer Service Centre(see below)forfurther information.Customer Service CentreIf you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALSTANDARDIEC61603-6First edition2001-10Transmission of audio and/or video andrelated signals using infra-red radiation Part 6:Video and audio-visual signalsPRICE CODE IEC 2001 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:inmailiec.ch IEC web site http:/www.iec.chPFor price,see current catalogue Commission Electrotechnique Internationale International Electrotechnical CommissionLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61603-6 IEC:2001(E)CONTENTSFOREWORD.31Scope.42Normative references.43Definitions.44Abbreviations.45Explanation of terms.56System considerations.57General conditions for measurements.68Characteristics to be specified and their methods of measurement.69Interface values,performance requirements and recommendations.810Marking and contents of specifications.10Figure 1 Transmission chain.10Figure 2 Location for measuring.11Figure 3 Transmitting distance.11Figure 4 Angle of maximum divergence at half optical radiant intensity.11Figure 5 Radiant intensity of transmitter or radiator.11Figure 6 Irradiance of receiver.12Figure 7 Characteristics of the transmitter.12Figure 8 Directivity characteristics of the transmitter.12Figure 9 Characteristics of the receiver.13Figure 10 Directivity characteristics of the receiver.13Figure 11 Measuring system for spurious emission.14Figure 12 Transmission format(composite video signal).16Figure 13 Transmission format(Y/C separation video signal).15Figure 14 Pre-emphasis circuit(example).15Table 1 Marking and contents of specifications.10LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61603-6 IEC:2001(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_TRANSMISSION OF AUDIO AND/OR VIDEO AND RELATED SIGNALSUSING INFRA-RED RADIATION Part 6:Video and audio-visual signalsFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in addition to other activities,the IEC publishes International Standards.Their preparation isentrusted to technical committees;any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work.International,governmental and non-governmental organizat