1、BRITISH STANDARD BS EN 61603-1:1997 IEC 61603-1: 1997 Transmission of audio and/or video and related signals using infra-red radiation Part 1: General The European Standard EN 61603-1:1997 has the status of a British Standard ICS 33.160.99BSEN61603-1:1997 This British Standard, having been prepared
2、under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes into effect on 15 September 1997 BSI 09-1999 ISBN 0 580 27761 5 Amendments issued since publication Amd. No. Date CommentsBSEN61603-1:1997 BSI 09-1999 i Contents Page National f
3、oreword ii Foreword 2 Text of EN 61603-1 5BSEN61603-1:1997 ii BSI 09-1999 National foreword This British Standard is the English language version of EN61603-1:1997. It is identical with IEC 61603-1:1997 including corrigendum May1997. It supersedes BS6418:1983 which will be withdrawn on1997-12-01. Th
4、e UK participation in its preparation was entrusted by Technical CommitteeEPL/100, Audio, video and multimedia systems and equipment, to SubcommitteeEPL/100/3, Equipment and systems in the field of audio, video and audiovisual engineering, which has the responsibility to: aid enquirers to understand
5、 the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. This standard should be read in conjunction
6、with BS7693:1993 Guide to uses of infra-red transmission and the prevention or control of interference between systems. BS EN 61603 will consist of six parts: Part 1: General; Part 2: Transmission systems for audio wideband and related signals; Part 3: Transmission systems for audio signals for conf
7、erence and similar applications; Part 4: Transmission systems for low-speed remote control; Part 5: Transmission systems for high-speed data and remote control; Part 6: Transmission systems for video and audiovisual signals of high quality. A list of organizations represented on this subcommittee ca
8、n be obtained on request to its secretary. From 1 January1997, all IEC publications have the number60000 added to the old number. For instance,IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications may contain ident
9、ifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international
10、or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a con
11、tract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 1
12、8 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61603-1 May 1997 ICS 33.160.99 Supersedes HD 455 S1:1985 Desc
13、riptors: Sound transmission, electroacoustic equipment, infrared radiation, general, measurements, characteristics, performance evaluation, classifications, marking English version Transmission of audio and/or video and related signals using infra-red radiation Part 1: General (IEC 61603-1:1997 + co
14、rrigendum 1997) Transmission de signaux audio et/ou vidoetdesignaux similaires au moyen durayonnement infrarouge Partie1:Gnralits (CEI 61603-1:1997 + corrigendum1997) bertragung von Ton- und/oder Bildsignalenund verwandten Signalen mitInfrarot-Strahlung Teil 1: Allgemeines (IEC 61603-1:1997 + Corrig
15、endum 1997) This European Standard was approved by CENELEC on 1997-03-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibl
16、iographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibili
17、ty of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherl
18、ands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELE
19、C All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61603-1:1997 EEN61603-1:1997 BSI 09-1999 2 Foreword The text of document100C/31/FDIS, future edition1 of IEC61603-1, prepared by SC100C, Audio, video and multimedia subsystems and equipment,
20、 of IEC TC100, Audio, video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN61603-1 on 1997-03-11. This European Standard supersedes HD455S1:1985. This standard is to be used in conjunction with ENV50185-1:1995. The following date
21、s were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex A is informative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International
22、 Standard IEC61603-1:1997 and its corrigendum May1997 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 Introduction 5 Section 1. General 1.1 Scope 5 1.2 Normative references 5 1.3 Definitions 6 1.4 Abbreviations 6 Section 2. Explanation of terms and g
23、eneralinformation 2.1 General 6 2.2 Operating environment 6 2.3 IR source 6 2.4 IR propagation medium and receiver 7 2.5 Modulation 8 2.6 IR interference 9 2.7 Electromagnetic compatibility 9 2.8 Safety aspects 9 Section 3. General conditions for measurements 3.1 Operating environment and measuremen
24、t conditions 9 3.2 Pre-conditioning 9 3.3 Interface (matching) values 9 3.4 Presentation of results in specifications 10 Section 4. Characteristics to be specified andtheirmethods of measurement 4.1 Characteristics of IR sources 10 4.2 Characteristics of the IR propagation medium and receiver 11 4.3
25、 Characteristics of modulation 12 Section 5. Performance requirements andrecommendations 5.1 Maximum power density of the irradiation 12 5.2 Spurious IR emission 13 5.3 Polarity 13 5.4 Electrical interfaces 13 5.5 Spurious modulation signals 13 5.6 IR emissions from other devices and equipment 13 Se
26、ction 6. Classification or systems and equipment 6.1 General 13 6.2 Classification criteria and coding 13 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1997-12-01 latest date by which the national standard
27、s conflicting with the EN have to be withdrawn (dow) 1997-12-01EN61603-1:1997 BSI 09-1999 3 Page Section 7. Marking and contents of specifications 7.1 Marking 13 7.2 Contents of specifications 14 Annex A (informative) Details of the applicationsofparts2to6ofIEC 1603 17 Annex ZA (normative) Normative
28、 references tointernational publications with their corresponding European publications 18 Figure 1 Signal chain and related IECstandards 14 Figure 2 Presentation of channel grids 15 Figure 3 Preferred electrical spectrum allocationfor IR modulation, and the relevantpartsof this standard 15 Table 1
29、Interference between IR sources andsystems 14 Table 2 Channel allocation scheme 14 Table 3 Marking and contents of specifications 164 blankEN61603-1:1997 BSI 09-1999 5 Introduction This part of IEC 1603 covers the transmission of audio, video, data and control signals which use free radiation of inf
30、ra-red (IR). Transmission using infra-red radiation is in growing use for many different applications. This standard gives guidance for the generic usage of infra-red. It provides information for designers and users of infra-red systems which allow the evaluation of the operation of different system
31、s. IEC 764 specifies requirements for audio transmission with high quality audio transfer via two infra-red channels and for conference systems with up to nine audio channels and using frequency modulation on subcarriers which amplitude modulate the IR intensity. However, this number of channels set
32、s limits on technical evolution. The growing use of IR transmission, such as for remote control or data transmission, and the increasing number of cases, where modulated IR is emitted as a side-effect, reveals the need for a more general concept. Infra-red systems typically use radiation in the rang
33、e of wavelengths from830nm to 950nm. To take into account possible future development, this standard covers wavelengths from700nm to1600nm. A direct modulation of the frequency of the infra-red radiation is possible, but is not yet used for transmission through air. It should not be excluded in the
34、long term. The prevention of interference between different applications by the use of different wavelengths is not yet economically feasible, but the situation may soon change; therefore this possibility is allowed for in this standard. Most of the applications in the complete standard (six parts)
35、already exist as wired systems. In extending to wireless links using infra-red, the aim is to retain the transmission properties of the wired versions. This standard is therefore as consistent as possible with existing standards for wired systems. This standard gives guidance only on avoiding interf
36、erence from light sources. For a fully compatible system, it is necessary to set limits both for the emission from light sources and for the immunity of the infra-red transmission systems. For ease of reference, the applications covered in the different parts of this standard are explained in more d
37、etail inAnnex A. Section 1. General 1.1 Scope This part of IEC 1603 gives methods of measuring and specifying the common technical features of the parts of systems which use diffusely radiated or wide beams of infra-red radiation as carriers of information, mainly representing audio and/or video sig
38、nals but also control data related to audio and video apparatus. This standard applies to signal transmission by use of freely radiated infra-red, normally used indoors in rooms and for groups of varying sizes. It does not cover security systems or other industrial applications, such as measurement
39、and automation equipment. It also does not cover traffic systems or systems for the help of handicapped people. Narrow-beam and cable-like infra-red applications are excluded, although the former could interfere with the systems covered. 1.2 Normative references The following normative documents con
40、tain provisions which, through reference in this text, constitute provisions of this part of IEC1603. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC1603 are encouraged to investigate
41、the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 50(845):1987, International Electrotechnical Vocabulary Lighting. IEC 65:1985, Safety requirements for mains oper
42、ated electronic and related apparatus for household and similar general use. IEC 68, Environmental testing. IEC 268-1:1985, Sound system equipment Part1:General. IEC 268-15:1996, Sound system equipment Part15: Preferred matching values for the interconnection of sound system components. IEC 417, Gra
43、phical symbols for use on equipment. IEC 574-3:1983, Audiovisual, video and television equipment and systems Part 3: Connectors for the interconnection of equipment in audiovisual systems. IEC 574-4:1982, Audiovisual, video and television equipment and systems Part 4: Preferred matching values for t
44、he interconnection of equipment in a system. EN61603-1:1997 6 BSI 09-1999 IEC 825-1:1993, Safety of laser products Part1:Equipment classification, requirements and users guide. IEC 1147:1993, Uses of infra-red transmission and the prevention or control of interference between systems. ISO 7000:1989,
45、 Graphical symbols for use on equipment Index and synopsis. 1.3 Definitions For the purpose of this part of IEC1603, the following definitions apply. 1.3.1 channel identification number in a multichannel system, the number given to a specific single channel for identification purposes 1.3.2 detector
46、; IR detector front end of an IR receiver, such as photodiode, phototransistor 1.3.3 number of channels the total number of information channels offered by a system, as specified by the manufacturer 1.3.4 power density 1) In general, the quotient of the IR power and a specified unit area. 2) For dif
47、fuse IR radiation in a room, the total installed IR power divided by the floor area of the room. NOTEThis special definition has proved to be helpful for planning purposes. 1.3.5 radiator; IR radiator device for converting the electrical input supplied by a separate transmitter into IR 1.3.6 receive
48、r; IR receiver device with IR detector and signal processing which reconstructs the original message or transcodes it for special use, such as remote control 1.3.7 source; IR source any device supplying IR for transmitting signals 1.3.8 transmitter; IR transmitter device containing an electronic cir
49、cuitry which processes a message into a signal suitable for the modulation of an IR source in the same or in a separate unit 1.3.9 ulbricht sphere device, in the shape of a sphere with its inner surface coated with scattering material, for making source power measurements NOTEThe scattering material generates a uniform diffuse IR field inside the sphere. 1.4 Abbreviations 1.4.1 IR: Infra-red, infra-red radiation. NOTEThe depreoated term “infra-red light” is in use instead of the correct term “infra-red radiation”,
