1、 IEC 62379-1 Edition 1.0 2007-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Common control interface for networked digital audio and video products Part 1: General Interface de commande commune pour produits audio et vido numriques connects en rseaux Partie 1: Gnralits IEC 62379-1:2007 colour insid
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16、 NORME INTERNATIONALE Common control interface for networked digital audio and video products Part 1: General Interface de commande commune pour produits audio et vido numriques connects en rseaux Partie 1: Gnralits INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
17、 XB ICS 33.160; 35.100 PRICE CODE CODE PRIX ISBN 978-2-83220-239-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veui
18、llez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 62379-1 IEC:2007 CONTENTS FOREWORD . 4 0 Introduction 6 0.1 Overview . 6 0.2 Structure of the family of standards . 6 0.3 Model of the equipment being controlled . 7 0.3.1 Blocks . 7 0.3.2 Control frame
19、work . 8 0.3.3 How the framework helps when designing units . 9 0.3.4 How the framework enables “plug and play“ 9 0.3.5 Defining a new type of block 9 0.4 Management information base (MIB) . 10 0.4.1 Objects 10 0.4.2 Other uses of OIDs 10 0.4.3 Migration to XML . 10 0.5 Status broadcasts . 11 0.5.1
20、Introduction . 11 0.5.2 Status page information sources 11 0.5.3 Status page general format 11 0.6 Calls 11 0.7 Privilege levels 12 0.8 Automation 13 0.9 Uploading software 13 0.10 Encapsulation of messages . 14 0.11 Further information 14 1 Scope . 15 2 Normative references . 15 3 Terms and definit
21、ions . 15 4 Unit management . 18 4.1 Protocol . 18 4.2 MIB definitions 19 4.2.1 General . 19 4.2.2 Application-wide type definitions 20 4.2.3 Conceptual row type definitions . 24 4.2.4 MIB objects for basic unit identity and status information . 25 4.2.5 MIB objects for the block framework 28 4.2.6
22、MIB objects for real time clock information. 30 4.2.7 MIB objects for reference clock information . 31 4.2.8 MIB objects for software upload . 32 4.2.9 MIB objects for scheduled operations 34 5 Procedures . 36 5.1 Real-time clocks 36 5.2 Procedures for uploading software 36 5.2.1 Areas. 36 5.2.2 Con
23、tents 37 5.2.3 Procedure for updating a software component . 37 62379-1 IEC:2007 3 5.2.4 File format for a software component . 38 5.2.5 Format for product files . 39 5.2.6 Software distribution 40 5.3 Scheduled operations 40 5.3.1 Requesting a scheduled operation . 40 5.3.2 Executing a scheduled op
24、eration . 42 5.3.3 Delaying a scheduled operation . 42 5.3.4 Aborting a scheduled operation . 42 5.3.5 State of relative operations 42 6 Status broadcasts . 42 6.1 General . 42 6.2 Page formats . 44 6.2.1 Basic unit identity page . 44 6.2.2 Time-of-day page 44 6.2.3 Scheduled operations page . 45 6.
25、3 Page groups 45 6.3.1 basicUnitStatus . 45 6.3.2 timeOfDay . 45 6.3.3 scheduledOps . 45 Annex A (informative) Background information . 47 Annex B (informative) Machine-readable MIB definitions 50 Annex C (informative) Machine-readable status page-group definitions . 68 Bibliography 69 Figure 1 A bl
26、ock . 7 Figure 2 Ports 7 Figure 3 Example of a “unit“ . 8 Table 1 Managed objects conveying information about the unit 25 Table 2 Managed objects for block and connector configuration . 28 Table 3 Managed objects for real-time clock information 30 Table 4 Managed objects for reference clock informat
27、ion . 31 Table 5 Managed objects for software upload 32 Table 6 Managed objects for scheduled operations 34 4 62379-1 IEC:2007 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ COMMON CONTROL INTERFACE FOR NETWORKED DIGITAL AUDIO AND VIDEO PRODUCTS Part 1: General FOREWORD 1) The International Electrotech
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38、ll such patent rights. International Standard IEC 62379-1 has been prepared by IEC technical committee 100: Audio, video and multimedia systems and equipment. This bilingual version (2012-08) corresponds to the monolingual English version, published in 2007-08. The text of this standard is based on
39、the following documents: FDIS Report on voting 100/1248/FDIS 100/1281/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of this standard has not been voted upon. This publication has been drafted
40、 in accordance with the ISO/IEC Directives, Part 2. 62379-1 IEC:2007 5 The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication.
41、At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users sh
42、ould therefore print this document using a colour printer. 6 62379-1 IEC:2007 0 Introduction 0.1 Overview This family of standards specifies a control framework for networked audiovisual equipment. It provides a means for management entities to control not only transmission across the network but al
43、so other functions within interface equipment. Although it was originally developed for audio over asynchronous transfer mode (ATM) in radio broadcasting, the control framework has been extended to encompass video and other time-critical media, as well as other networking technologies and other appl
44、ications in both professional and consumer environments. The control framework provides a number of key features: it provides a consistent interface to the functionality in an audiovisual unit; it enables systems to be built that are truly “plug and play“, by providing the means for equipment to dis
45、cover what units are connected to the network and what their capabilities are; it links discrete areas or blocks of functionality together in a consistent and structured way; it allows us to define small focused building blocks from which more complex functionality can be built; it ensures new funct
46、ionality can be developed and integrated consistently and easily into the framework. The functionality provided by an audiovisual unit is represented using one or more “blocks“ (such as a cross-point switch or a gain control), structured and connected together using the control framework. As a furth
47、er aid to the “plug-and-play“ functionality, a common format for audio and video being conveyed across the network is also specified, to avoid situations in which two pieces of equipment fail to communicate because there is no format which both support. Equipment may, of course, also support other f
48、ormats appropriate to particular applications, and the standard mechanisms for initiating and terminating communication will work for those formats in the same way as for the standard formats. 0.2 Structure of the family of standards IEC 62379 is intended to include the following parts: Part 1: Gene
49、ral Part 2: Audio Part 3: Video Part 4: Data Part 5: Transmission over networks Part 6: Packet transfer service Part 1 specifies aspects which are common to all equipment. Parts 2 to 4 specify control of internal functions specific to equipment carrying particular types of media; in the case of Part 4, this would be time-critical media other than audio and video, for instance, RS232 and RS422 data for applicati
