IEC INTERNATIONAL STANDARD 61603-7 First edition 2003-05 HIFENSE TAMESENI THISLOCANTONVBAYASUOPELIED BY BOO SPLY BUREAU. Transmissionsystemsofaudioand/orvideoand relatedsignals usinginfra-redradiation Part 7: Digital audio signals for conference and similar applications IEC Reference number IEC 61603-7:2003(E) Publication numbering 60000 series.For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidatededitions The 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, the base publication incorporating amendment 1 and the base publication incorporating amendments 1and 2. FurtherinformationonIEC publications The technical content of IEC publications is kept under constant review by the IEC, HOENSERNAMUSENI THIS LOCANIONBANYASORLED Y BOO SPPLY BUREAU. this publication, including its validity, is available in the IEC Catalogue of publications (see below) in addition to new editions, amendments and corrigenda. information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is also available from the following: IEc Web Site (www.iec.ch) CatalogueofIEcpublications The on-line catalogue on the IEC web site (http://www.iec.ch/searchpub/cur fut.htm) committees and date of publication. On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda IEC Just Published This summaryof recently issued publications (http://www.iec.ch/online news/ justpublip entry.htm) is also available by email. Please contact the Customer Service Centre (see below) for further information. Customer Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: [email protected] Tel: +4122 919 02 11 Fax: +4122 919 03 00 IEC INTERNATIONAL STANDARD 61603-7 First edition 2003-05 HOENSERTAMUSENI THISLOCANIONVBANYASUOPELIED BY BOOK SUPPLY BUREAU. Transmissionsystemsofaudioand/orvideoand related signals using infra-red radiation Part 7: Digital audio signals for conference and ite similarapplications ?IEC2003— Copyright - all rights reserved mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varembe, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00E-mail: [email protected] Web: www.iec.ch U IEC PRICECODE Commission Electrotechnique Internationale InternationalElectrotechnicalCommission MexAyHapoAHanneKTpoTexHMyeCKanKoMACChg For price, see current cafalogue