NEWS

• 2020/9/29 13:32:32

Overview of the development of generic cabling system standards in China

The foreign wiring standards are basically ISO / IEC international standard, European EN standard series and North American TIA standard series. In addition to a relatively complete system of standards, it will continue to formulate relevant technical drafts at any time according to the development and needs of technology, products and market applications, so the content of standards is quite rich. Most of the members of foreign standardization organizations are representatives of manufacturers, who have the right to vote on the technical terms of standards. And from the perspective of standard system, it is more standardized and serialized. However, the technical requirements of foreign standards are often high. If they are directly applied in wiring engineering, it will become difficult to operate and the project investment will increase. Therefore, China should quote foreign standards in principle, and formulate technical requirements according to the requirements of relevant national standards and the actual situation of the project, which is more in line with the national conditions. At present, the domestic wiring standards are basically digesting, absorbing and judging the contents of foreign standards, and the contents of technical clauses formulated in the standards are in principle. If from the engineering point of view, combined with the actual situation in China, it will focus on the application of technology.



(1) China Data Center cabling standards



In China, at present, the data center wiring engineering construction mainly refers to the North American tia942 standard content. The technical requirements of the relevant clauses introduced are mainly reflected in the relevant chapters of code for design of electronic information system room (GB 50174). The specification is based on the design and technical requirements of computer room construction, structure, decoration, electrical, air conditioning, environment, etc. the content of wiring can not occupy too much space in the whole standard text. Therefore, the standard can not be a systematic computer room wiring as a more complete, operational content of the preparation, this is one of the deficiencies of the standard. In the computer room wiring engineering, due to the lack of understanding of the computer room wiring standards, we often still plan and design according to the wiring ideas of buildings. The wiring engineering of the computer room is nondescript, not to mention the test of the index parameters of the wiring engineering, which can not guarantee the quality of the project and meet the needs of long-term business development.



In terms of data center generic cabling standards, most domestic manufacturers adopt foreign standard TIA-942. Compared with domestic industry standards, in code for design of electronic information system room (GB 50174), data center wiring content is relatively simple, which only represents the composition of cabling system in computer room. The configuration requirements of the main distribution equipment in the machine room, the cross wiring equipment in the horizontal distribution area, the information socket in the distribution area or the assembly point distribution equipment in the regional distribution area are put forward. According to the standard of GB 50174, the number of information points in the host room shall be determined according to the data center of class A, B and C. the number of information sockets in each area of the supporting space can be determined according to the function and application characteristics of each space. The contents of these clauses are too general and simple to support the planning and design of data center cabling system. It is the revision of the standard of GB 50174, but the content of wiring is so few that it can not form a complete whole content, which is a defect of the industry.



Facing the cabling standard of data center, domestic technical experts in generic cabling and data center always pay close attention to the specification progress and technical direction of major international standardization organizations, and provide strong technical and application support for the rapid development of data center construction combined with China's reality. The "white paper on design and construction technology of data center cabling system", "white paper on engineering design, construction and detection technology of 10 Gigabit twisted pair cable system", "white paper on design and installation technology of intelligent cabling system" and "white paper on application technology of optical fiber cabling system in data center" launched in the field of generic cabling are the standardized development and technical innovation of China's data center cabling market New offers timely guidance. The white paper cites the relevant data center standards at home and abroad. Starting from the needs of engineering construction, the white paper focuses on the composition and topology of data center cabling system, product selection, system configuration, design steps, construction procedures, installation technology and transmission performance test.





The national beacon Commission has carried out the project establishment and compilation of the technical standard for generic cabling system of data center. This specification should be the equivalent introduction and adoption of ISO / IEC 24764 "data center Cabling Standard". It can not fully meet the needs of domestic data center cabling system engineering construction. The introduction of its new content into the wiring industry can provide a new design concept for the preparation of relevant national standards. If it is combined with the white paper of data center cabling system engineering application technology, it will play a positive role in the field of wiring. It can fill in the deficiencies of existing standards and guide the planning, design and construction of data center wiring engineering construction The acceptance work is carried out smoothly.



Foreign standards TIA-942-1-2008 "data center telecommunication facilities standard", ISO / IEC 24764 After the promulgation of the standards for telecommunication facilities in Data Center (Draft), ansi-bicsi-2002 information technology generic cabling standard data center, and ISO / iec11801:2008 generic cabling for user buildings, China should introduce, digest, absorb, transform and compile national standards with the same contents as references. And strive for our wiring enterprises to participate in the activities and conferences of foreign standardization organizations. At the same time, the national standard code for design of generic cabling system (GB 50311) and generic cabling system engineering