1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 50157-1:1999 The Eu
2、ropean Standard EN 50157-1:1998 has the status of a British Standard ICS 33.160.30; 33.160.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Domestic and similar electronic equipment interconnection requirements: AV.link Part 1: GeneralBS EN 50157-1:1999 This British Standard
3、, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February 1999 BSI 02-1999 ISBN 0 580 30835 9 Amendments issued since publication Amd. No. Date Text affected National foreword
4、 This British Standard is the English language version of EN 50157-1:1998. The UK participation in its preparation was entrusted by Technical Committee EPL/100, Audio, video and multimedia systems and equipment, to Subcommittee EPL/100/3, Equipment and systems in the field of audio, video and audiov
5、isual engineering, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promul
6、gate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the
7、section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applicat
8、ion. 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, the EN title page, pages 2 to 10, an inside back cover and a back cover.CENELEC European Committee for Electrotechnical St
9、andardization Comite Europe en de Normalisation Electrotechnique Europa isches Komitee fu r Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 5015
10、7-1:1998 E EUROPEAN STANDARD EN 50157-1 NORME EUROPE ENNE EUROPA ISCHE NORM July 1998 ICS 33.160.30; 33.160.40 Descriptors: television systems, peritelevision devices, appliance interconnections, audiovisual materials, characteristics, electrical properties, mechanical properties, signals, inspectio
11、n, measurements English version Domestic and similar electronic equipment interconnection requirements: AV.link Part 1: General Spe cification des interconnexions des e quipements e lectroniques domestiques et a usage analogue: AV.link Partie 1: Ge ne ralite s Kennwerte fu r die Kleinsignalverbindun
12、g zwischen elektronischen Gera ten fu r den Heimgebrauch und a hnliche Anwendungen: AV.link Teil 1: Allgemeines This European Standard was approved by CENELEC on 1996-07-02. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this E
13、uropean Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical 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 (
14、English, French, German). A version in any other language made by translation under the responsibility 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 Austr
15、ia, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 50157-1:1998 BSI 02-1999 Foreword This European Standard was prepared by Technical Committee CENELEC TC
16、203, Electronic entertainment and educational systems for household and similar use. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50157-1 on 1996-07-02. The following dates were fixed: latest date by which the EN has to be implemented at national level by
17、publication of an identical national standard or by endorsement (dop) 1999-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1999-01-01 This part 1 of EN 50157 includes: the general standardization document structure of the AV.link chain concept; th
18、e way of introduction new socket and plug connectors and new cord-sets; the use of the logo; and the recommended application information and corresponding chain and device requirements. Philips Electronics N.V. is willing to grant non-exclusive, non-transferable licenses on fair, reasonable and non-
19、discriminatory terms and conditions under its registered trademark AV.link and under any of its patent rights, under which it has the free right to grant licences and to the extent necessary to comply with this standard, for use in devices that fully perform in accordance with this standard to any t
20、hird party which has or will submit an equivalent undertaking with respect to this standard. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 4 3 Characteristics of the interconnections 4 4 Description of the socket and plug connector 4 5 Cord-sets 5 6 Instructions for use of
21、 the AV.link logo 7 7 Application information 8 8 Recommended system (chain) and device requirements 9 9 Methods of measurement 10Page 3 EN 50157-1:1998 BSI 02-1999 Table 1 Structure of the standard Mode “Start sequence” bit structure Related standardization document Description of the document Impl
22、ementation validity EN 50157-1 AV.link Part 1, “General” 1 “0” EN 50157-2-1 AV.link Part 2-1, “Signal quality matching and automatic selection of source devices” Mandatory 2 “10” EN 50157-2-2 AV.link Part 2-2, “Basic system oriented commands” Optional 3 “110” EN 50157-2-3 AV.link Part 2-3, “System o
23、riented application” Optional 4 “1110” EN 50157-2-4 AV.link Part 2-4, For future extension To be definedetc.8 “11111110” EN 50157-2-8 AV.link Part 2-8, For future extension To be defined NOTE The bit-format is fixed, but the number of bits depends on the “mode”. Introduction Reasons for the establis
24、hment of this standard Customer behaviour with respect to buying Audio Video (AV) equipment is such that devices are purchased from different manufacturers, in different combinations, at different moments within a long time period. This requires an interconnection system that is extendable and suite
25、d for the interconnection of existing types as well as new types of equipment (device). The present interconnection system according to EN 50049-1 specifies possible point-to-point connections between two AV (audio video) devices or between an AV device and the display unit (TV receiver or monitor).
26、 When more than two types of equipment had to be connected, a star interconnection configuration had to be created by means of a switch-box with as many connectors as the number of devices to be connected. The switch-box can be a separate unit or a built-in function in one of the devices of the star
27、 configuration. In practice this switch-box is mostly part of the TV receiver. However, to keep the cost-price of the TV receiver at an affordable level, the number of peritel connectors is restricted and not all of the extra connectors are completely wired. This makes the existing applied star conf
28、iguration conflicting with the requirement of extendibility and flexibility. To provide better means for the customer to add AV devices to an audiovisual system and to be more user-friendly with respect to the control of the system, a chain configuration with simple automatic control is specified an
29、d described in this standard. The AV.link logo identifies the type of devices and cord-sets fulfilling this standard. This standard is complementary to EN 50049-1. Products complying with this standard are backwards compatible with products that comply with EN 50049-1. The compatibility with respect
30、 to the devices in accordance with EN 50049-1 is based on the use of the cord-set defined in this standard and the matching values based on the signals described in EN 50049-1. The main difference of the signals is the use of Y“/C“ signals in a bi-directional way and the possibility to control the s
31、ignal quality in a bi-directional way also. To overcome interconnection problems and to guarantee a minimum signal quality if more devices are interconnected, system and device requirements are recommended as well as a new cord-set and corresponding connectors. 1 Scope 1.1 Standardization structure
32、of the AV.link Within the AV.link chain concept (see EN 50157-2-1) a control signal line at contact 10 of the PERITELEVISION connector is defined. Within this control signal line a bit-structure is defined introducing different modes of operation which introduces the following operation capabilities
33、: basic capability for automatic selection of devices and automatic signal quality matching with respect to the delivered and received signals (such as e.g. R, G, B, Y“/C“ and CVBS whereby R, G, B has the highest picture quality, Y“/C“ is the next one and CVBS is the lowest); this part, described in
34、 EN 50157-2-1, is the base for the interconnection principle (chain concept) and is mandatory for all products implementing the parts of this standard; basic AV-system oriented commands which are meant for easy use of an AV-system with respect to the interconnection and inter-operability (EN 50157-2
35、-2); system applications (EN 50157-2-3); future extensions. Depending on the “start sequence” bit structure the following related standards are defined or under consideration:Page 4 EN 50157-1:1998 BSI 02-1999 1) In preparation. 1.2 Rules for the implementation of the parts of EN 50157 with respect
36、to the use of: a) connectors; b) cord-sets; c) recommended requirements; d) methods of measurement. This part 1 of EN 50157 includes the clauses with respect to: the new socket and plug connectors and new cord-sets; the use of the logo; and the recommended application information and corresponding c
37、hain and device requirements. Introduction of products based on the implementation of the related parts of EN 50157 in the market needs a realistic and fare solution towards the use and introduction of the new proposed, socket, plug connectors, cord-sets, recommended requirements and methods of meas
38、urements. The situation today within Consumer Electronic manufacturing does not allow investments based on new proposed standards which introduces higher performances, none backwards compatible connectors and their related cord-sets. Therefore a certain introduction period is needed to establish whe
39、ther these proposed standards will be generally accepted by the market and manufacturers. Although standards EN 50157-2-X are based on the new proposed socket and plug connectors, cord-sets and recommended requirements, a transition period is allowed whereby products implementing part(s) of EN 50157
40、 may start with the use of existing: socket and plug connectors in accordance with EN 50049-1; cord-sets marked type U as described in EN 50049-1; devices which, in the loop-through situation, introduce as low as possible performance degradation if products are connected in accordance with EN 50157-
41、1 and EN 50157-2-X. (This loop-through facility is only needed within “in between” products which need two connectors Type I and Type II as explained in EN 50157-2-1, 5.1.) 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. T
42、hese normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For und
43、ated references the latest edition of the publication referred to applies. EN 50049-1, Domestic and similar electronic equipment interconnection requirements: Peritelevision connector. EN 50157-2-1, Domestic and similar electronic equipment interconnection requirements: AV.link Part 2-1: Signal qual
44、ity matching and automatic selection of source devices. EN 50157-2-2 1) , Domestic and similar electronic equipment interconnection requirements: AV.link Part 2-2: Basic system oriented commands. EN 50157-2-3 1) , Domestic and similar electronic equipment interconnection requirements: AV.link Part 2
45、-3: System oriented application. IEC 60268-1, Sound system equipment Part 1: General. (HD 483.1 S2:1989 = IEC 602681:1985 + A1:1988) IEC 60268-3, Sound system equipment Part 3: Amplifiers. (HD 483.3 S2:1992 = IEC 60268-3:1988 + A1:1990 + A2:1991) IEC 60807-9, Rectangular connectors for frequencies b
46、elow 3 MHz Part 9: Detail specification for a range of peritelevision connectors. 3 Characteristics of the interconnections See Table 1 of EN 50049-1 and clause 6 of EN 50157-2-1. 4 Description of the socket and plug connector 4.1 Basic description See EN 50049-1. 4.2 Mechanical characteristics See
47、EN 50049-1, except as follows. 4.2.1 Socket The socket is basically described in EN 50049-1. The AV.link socket is provided with a locking element which together with the mechanical locking mechanism of the plug forms a closed locking of both plug and socket. The AV.link socket is also provided with
48、 a blocking element which together with the slot arrangement in the shield of the plug forms a special solution to fulfil this standard. 4.2.2 Plug The plug is basically described in EN 50049-1. The shield of the AV.link plug is provided with a slot arrangement which fits onto the blocking element o
49、f the socket to be exclusive for this standard. The AV.link plug is provided with a mechanical locking mechanism to prevent the plug from being loosened from the socket. Having the slot shield of the plug and fulfilling this standard allows manufacturers to make use of a logo which has to be requested by the EACEM or representative organization within their country.Page 5 EN 50157-1:1998 BSI 02-1999 Table 2 Connector compatibility Connector (female) EN 50049-1 (non AV.link) AV.link connect
