GB/T 34993-2017Technical requirements and measurement methods for ASI/DS3 adapter and de-adapter used in program distribution network (English PDF)
节目分配网络ASI/DS3适配器及解适配器技术要求和测量方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 1, 2017
Implementation date
February 1, 2018
Scope
GB/T 34993-2017 is the English-translated version of 节目分配网络ASI/DS3适配器及解适配器技术要求和测量方法.
GB/T 34993-2017 is the Chinese standard "Technical requirements and measurement methods for ASI/DS3 adapter and de-adapter used in program distribution network".
Its scope clause reads: This standard specifies the main technical requirements and measurement methods used to transport streaming ASI/DS3 adapter and solution adapter. for Equivalent measurement methods that ensure the same measurement uncertainty can also be used.
In case of dispute, this standard shall prevail. This standard applies to program distribution network ASI/DS3 adapter and solution for the development, production, use, measurement and operation and maintenance. Its clauses include terms and definitions.
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Document preview — GB/T 34993-2017
National Standard of the People's Republic of China
- ICS
- 33.160
- Classification
- M 63
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Abbreviations
- 5 General technical requirements
- 6 adapter technical requirements
- 7 solution adapter technical requirements
- 8 General technical requirements Measurement methods
- 9 adapter measurement method
- 10 solution adapter measurement method
1 Scope
This standard specifies the main technical requirements and measurement methods used to transport streaming ASI/DS3 adapter and solution adapter. for
Equivalent measurement methods that ensure the same measurement uncertainty can also be used. In case of dispute, this standard shall prevail.
This standard applies to program distribution network ASI/DS3 adapter and solution for the development, production, use, measurement and operation and maintenance.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 7611-2016 Digital network series bit rate electrical interface features
GB/T 17975.1-2010 Information technology - General coding of moving pictures and their accompanying audio signals - Part 1. System
Technical specification of MPEG-2 signal transmission in SDH network
GB/T 28434-2012 Terrestrial digital television broadcasting single frequency network adapter technical requirements and measurement methods
Digital Television Broadcasting Channel Coding and Modulation Specifications
RFC1321 MD5 information digest algorithm (TheMD5message-digestalgorithm)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 ASI packet transport format ASItransmissionformatwithdatapackets
A special character K28.5 is padded between TS packets, but a special character K28.5 is not padded between valid data in TS packets format.
Note For the definition of the special character K28.5, refer to A4 in Appendix A of GY/T 170-2001.
3.2 ASI burst data transmission format ASItransmissionformatwithdatabursts
A transport format that fills the special character K28.5 between valid data in TS packets.
3.3 DS3 digitalsignallevel3T-carrier
A synchronous digital sequence interface at 44736 kbps.
3.4 Transport Stream; TS
A digital television transmission data structure, in the MPEG-2 system, using a packet-based approach, to have one or more independent
One or more digital video and audio streams of the base are multiplexed into one stream.
[GB/T 7400-2011, Definition 3.99] […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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