1、 IEC 62365Edition 2.0 2009-05INTERNATIONAL STANDARD Digital audio Digital input-output interfacing Transmission of digital audio over asynchronous transfer mode(ATM)networks IEC 62365:2009(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUR
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9、 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 62365Edition 2.0 2009-05INTERNATIONAL STANDARD Digital audio Digital input-output interfacing Transmission of digital audio over asynchronous transfer mode(ATM)networks
10、INTERNATIONAL ELECTROTECHNICAL COMMISSION UICS 35.200,33.160 PRICE CODEISBN 2-8318-1040-8 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62365 IEC:2009(E)CONTENTS
11、 FOREWORD.4 INTRODUCTION.6 1 Scope.8 2 Normative references.8 3 Terms and definitions.8 4 Format of audio data in ATM cells.10 4.1 Format of audio samples.10 4.1.1 Subframes.10 4.1.2 Audio sample word.10 4.1.3 Ancillary data.10 4.1.4 Protocol overhead.10 4.2 Packing of sample data into cells.12 4.2.
12、1 Packing schemes.12 4.2.2 Temporal grouping.12 4.2.3 Multi-channel.12 4.2.4 Grouping by channel.13 4.3 Formats.13 4.4 ATM adaptation layer.13 4.5 ATM-user-to-ATM-user indication.13 5 Switched virtual circuits.14 5.1 Addresses.14 5.2 Audio call connection:SETUP and ADD PARTY messages.14 5.2.1 Restri
13、ctions on connection requests.14 5.2.2 Information elements in the SETUP and ADD PARTY messages.14 5.2.3 Destination response to SETUP and ADD PARTY messages.15 5.3 Call disconnection.16 6 Coding of audio formats.16 6.1 Qualifying information.16 6.2 Subframe format.17 6.3 Packing of subframes into c
14、ells.17 6.4 Sampling frequency.18 7 Permanent virtual circuits.18 8 Management interface.19 8.1 Call connection:SETUP messages.19 8.1.1 Restrictions on connection requests.19 8.1.2 Information elements in the SETUP message.19 8.1.3 Destination response to SETUP message.20 8.2 Message encapsulation.2
15、0 8.3 Message format and action to be taken by recipient.20 8.4 Message types.21 8.4.1 Messages sent from the controlling entity.21 8.4.2 Messages sent to the controlling entity.23 8.4.3 Vendor-specific messages.25 Annex A(informative)Data protection.26 Annex B(informative)Application identifier val
16、ues.28 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62365 IEC:2009(E)3 Bibliography.29 Table 1 Fields contained in a subframe.10 Table 2 Default port number and packing for certain VCIs.19 Table 3 Status enquiry message.21 Table 4 Audio connection request message.22 Table 5 Audio disconnection request message.22 Table 6 Input port status message.23 Table 7 Output port status message.24 Table 8 Other status messages.25 Table 9 Ve
