(In the preparation of this white paper, a large number of domestic and foreign standards are referenced, and many explanations with pictures and texts are cited, and many examples are given. Including the latest products used in the data core, the general structure and scope of application of these products, etc.; these products are used in the data core, how to configure, how to install, and also have corresponding picture descriptions. In addition, we also put some cases in the white paper, which are generally difficult to see in the standard. This white paper is equivalent to a technical guide for the design and construction of the data core wiring system. It has a very positive technical guiding role in engineering design and construction, and can help users, design and construction units to effectively improve the design level and project quality.)