BS-EN-62365-2005.pdf
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1、BRITISH STANDARD BS EN 62365:2005 Digital audio Digital input-output interfacing Transmission of digital audio over asynchronous transfer mode (ATM) networks The European Standard EN 62365:2005 has the status of a British Standard ICS 35.200; 33.160 ? Licensed Copy: sheffieldun sheffieldun, na, Mon
2、Nov 13 12:51:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 62365:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 24 January 2006 BSI 24 January 2006 ISBN 0 580 47522 0 National foreword This British Standard is the official English
3、 language version of EN 62365:2005. It is identical with IEC 62365:2004. The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio, video and multimedia systems and equipment, which has the responsibility to: A list of organizations represented on this committee can
4、 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 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” f
5、acility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligat
6、ions. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of page
7、s This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 29 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun she
8、ffieldun, na, Mon Nov 13 12:51:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 62365 NORME EUROPENNE EUROPISCHE NORM September 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnis
9、che Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62365:2005 E ICS 35.200; 33.160 English version Digital audio Digital input-output interfacing Transmissio
10、n of digital audio over asynchronous transfer mode (ATM) networks (IEC 62365:2004) Audionumrique Interface numrique dentre-sortie Transmission de laudionumrique sur les rseaux mode de transfert asynchrone (ATM) (CEI 62365:2004) Digitalton Digitale Ein-/Ausgangsschnittstellen bertragung von Digitalto
11、n ber ATM-Netzwerke (IEC 62365:2004) This European Standard was approved by CENELEC on 2005-08-01. 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.
12、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 (English, French, German). A version in any other language made by translati
13、on 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 Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ger
14、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 12:51:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2
15、 Foreword The text of the International Standard IEC 62365:2004, prepared by IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC as EN 62365 on 2005-08-01 without any modification. The following dates were fixed: latest date by
16、which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2006-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-08-01 Annex ZA has been added by CENELEC. _ Endorsement notice
17、The text of the International Standard IEC 62365:2004 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60027-2 NOTE Harmonized as HD 60027-2:2003 (not modified). _ EN
18、 62365:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 12:51:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 EN 62365:2005 CONTENTS INTRODUCTION.4 1 Scope 6 2 Normative references .6 3 Terms and definitions .6 4 Format of audio data in ATM cells.7 4.1 Format of audio samples7 4.2 Packing
19、 of sample data into cells .10 4.3 Formats.11 4.4 ATM adaptation layer.11 4.5 ATM-user-to-ATM-user indication.12 5 Switched virtual circuits 12 5.1 Addresses .12 5.2 Audio call connection: SETUP and ADD PARTY messages.12 5.3 Call disconnection .14 6 Coding of audio formats15 6.1 Qualifying informati
20、on15 6.2 Subframe format15 6.3 Packing of subframes into cells16 6.4 Sampling frequency.16 7 Permanent virtual circuits .17 8 Management interface 17 8.1 Call connection: SETUP messages .17 8.2 Message encapsulation .19 8.3 Message format and action to be taken by recipient .19 8.4 Message types 19
21、Annex A (informative) Data protection 25 Annex B (informative) Application identifier values27 Annex ZA (normative) Normative references to international publications with their corresponding European publications29 Bibliography .28 Table 1 Fields contained in a subframe 8 Table 2 Combinations of su
22、bframe format and packing scheme 11 Table 3 Default port number and packing for certain VCIs.17 Table 4 Status enquiry message 20 Table 5 Audio connection request message20 Table 6 Audio disconnection request message .21 Table 7 Input port status message 22 Table 8 Output port status message 23 Tabl
23、e 9 Other status messages24 Table 10 Vendor-specific messages .24 Table A.1 Sequence number protection field values25 Table B.1 Application identifier (octets 9 to 12) values in the BHLI IE. .27 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 12:51:34 GMT+00:00 2006, Uncontrolled Copy, (c) BS
24、I EN 62365:2005 4 INTRODUCTION This International Standard describes means for the transmission of professional audio across digital networks, including metropolitan- and wide-area networks, to provide the best performance with regard to latency, jitter, and other relevant factors. Current-generatio
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