DMX512-A Lighting Control Data Transfer Protocol (Attachment)


This standard is equivalent to the US National Standard E1.11-2004 "USITT DMX512-A Asynchronous Serial Data Digital Transmission Standard for Lighting and Auxiliary Equipment Control", English Name: American National Standard E1.11-2004 Entertainment Technology -USITT DMX512-A Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories.

For the translation of E1.11-2004, the standard entertainment unit and the American Association of Entertainment Services and Technology (ESTA) agree that the standard is responsible for drafting the unit of the China Performing Arts Equipment Technology Association, the venue equipment professional committee, and will separately make mistakes in the document and Responsible for contradictions and differences between the original English version.

Appendix A, Appendix B, Appendix C, Appendix D and Appendix E of this standard are normative appendices. Appendix F is an informative annex.

This standard was proposed by the Ministry of Culture of the People's Republic of China, and the Professional Performance Committee of the China Performing Arts Equipment Technology Association is under the jurisdiction.

This standard is drafted by: China Performing Arts Equipment Technology Association Performance Venue Equipment Professional Committee.

Participated in the drafting of this standard: Shanghai Theatre Academy, Guangzhou Hedong Electronics Co., Ltd., Panyu Zhujiang Lighting & Audio Industry Co., Ltd., Zhuhai Taili Lighting & Audio Design & Installation Co., Ltd., Zhejiang Stage Design & Research Institute Co., Ltd., Guangzhou University Audiovisual and Lighting Technology Research All.

The main drafters of this standard: Liu Dean, Liang Guoqin, Zeng Yi, Wang Zhusheng, Liao Weimin, Pan Yunhui, Hong Meifang.

Content

Foreword................................................. ............................. IV

1 Overview................................................. .............................. 1

1.1 Scope................................................ ........................... 1

1.2 Overview................................................ ........................... 1

1.3 Correct use of standards................................................ .................... 1

1.4 Control data that can be sent............................................ ................... 1

1.5 Control data that cannot be sent........................................... ................. 1

1.6 Implementation of the standard .............................................. ....................... 1

2 Normative references............................................. ...................... 1

3 Terms and Definitions.............................................. ......................... 2

4 Electrical characteristics and physical layer............................................ ..................... 5

4.1 Overview................................................ ........................... 5

4.2 Electrical isolation ............................................ ........................ 5

4.3 Topology ............................................... ........................ 5

4.4 DMX512 Port............................................ ...................... 5

4.5 Data Link Common and Grounding Topologies...................................... .............. 5

4.6 Recommended Ground Connections................................................ .................... 5

4.7 Primary Data Link................................................ ........................ 5

4.8 Auxiliary Data Link................................................ ...................... 5

4.9 Data Link Termination Method............................................ ................... 6

4.10 Unpowered equipment................................................ ...................... 6

5 Nominal working characteristics............................................ ....................... 6

5.1 Overview................................................ ...........................6

5.2 Case of power-isolated equipment.......................................... ................. 6

5.3 Grounding of the public end of the transmitter data link........................................... ............ 6

5.4 Transmitter using reference ground.......................................... .................. 6

5.5 Transmitter grounding method not allowed........................................... ............ 7


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