1、常見機柜的型號

　　1. Common cabinet models

　　規定的尺寸是服務器的寬（48.26cm＝19 英寸）與高（4.445cm 的倍數）。 由于寬為 19 英寸，所以有時也將滿足這一規定的機架稱為“19 英寸機架”。厚度以 4.445cm 為基本單位，1U 就是4.445cm。

　　The specified dimensions are the width (48.26cm=19 inches) and height (multiples of 4.445cm) of the server. Due to its width of 19 inches, racks that meet this requirement are sometimes referred to as "19 inch racks". The basic unit of thickness is 4.445cm, and 1U is 4.445cm.

　　機柜內排序布局

　　Sorting layout inside the cabinet

　　機柜通常分為四個區域：

　　Cabinets are usually divided into four areas:

　　 1、交流配電單元?：位于機柜非常上端，負責電力分配，需符合安全規范。  

　　What? 1. Communication distribution unit? Located at the top of the cabinet, responsible for power distribution and must comply with safety regulations.  

　　2、配線架區?：用于網絡、電話等線纜管理，建議放置在中部易操作區域。 

　　2. Distribution frame area? Used for network, telephone and other cable management, it is recommended to place it in the central easy to operate area.   

　　3、有源設備區?：包括交換機、路由器等需散熱的設備，通常按功能順序排列（服務器-路由器-交換機），大件設備放底部以方便維護。  

　　3. Active equipment area? Including devices that require heat dissipation such as switches and routers, they are usually arranged in functional order (server router switch), with large equipment placed at the bottom for easy maintenance.  ?

　　4、光纜終端盒?：放置在底層托盤上，與光纜集中管理。 ?

　　4. Fiber optic cable terminal box? Placed on the bottom tray and centrally managed with optical cables.   

　　排列順序

　　Arrange order

　　?線纜管理?：采用固線器固定線纜，自上而下排列，左右均勻分布，避免交叉。  

　　What? Cable management? Use a cable stabilizer to fix the cables, arrange them from top to bottom, evenly distribute them left and right, and avoid crossing.   

　　設備安裝?：大功率設備（如服務器）需預留散熱空間，前后間距≥300mm。

　　Equipment installation? High power devices (such as servers) need to reserve heat dissipation space with a front to back distance of ≥ 300mm.

　　擴展性?：預留擴展空間，機柜間面板需保持平行，縫隙≤3mm。 

　　Scalability? Reserve expansion space, and the panels between cabinets should be kept parallel with a gap of ≤ 3mm?

　　典型布局示例

　　Typical Layout Example

　　 22U機柜?：頂部4U用于光纖配線架，中部8U為24口模塊配線架，底部8U為交換機或路由器。  

　　What? 22U cabinet? The top 4U is used for fiber optic distribution frames, the middle 8U is for 24 port module distribution frames, and the bottom 8U is for switches or routers.  

　 42U機柜?：通常上部4U光纖配線架，中部24U交換機/路由器/理線器，底部8U為光纜終端盒或托盤。 

　　What? 42U cabinet? Usually, the upper 4U fiber optic distribution frame, the middle 24U switch/router/cable organizer, and the bottom 8U are fiber optic cable terminal boxes or trays.  

　　需注意：機柜安裝需垂直偏差≤3mm，水平誤差≤2mm，確保穩固性和散熱需求。

　　Attention: The installation of the cabinet should have a vertical deviation of ≤ 3mm and a horizontal error of ≤ 2mm to ensure stability and heat dissipation requirements.

　　3、機柜內走線要求：（重要內容）

　　3. Requirements for wiring inside the cabinet: (Important content)

　　多次有朋友問到關于機柜內走線的內容，這次弱電行業網在這里一起來談下。

　　Many friends have asked about the wiring inside the cabinet, and this time the weak current industry network is here to discuss it together.

　　1、 線纜的布放應自然平直，不得產生扭絞、打圈接頭等現象，不應受外力的擠壓和損傷。

　　1. The laying of cables should be natural and straight, without twisting, looping joints or other phenomena, and should not be compressed or damaged by external forces.

　　2、 纜線兩端應貼有標簽，應標明編號，標簽書寫應清晰，端正和正確。標簽應選用不易損壞的材料。

　　2. Both ends of the cable should be labeled with numbers, and the label writing should be clear, upright, and correct. Labels should be made of materials that are not easily damaged.

　　3、 在線纜預留方面，對于固定安裝的機柜，在機柜內不應有預留線長，預留線應預留在可以隱蔽的地方，長度在1m-1.5m之間。對于可移動的機柜，聯入機柜的全部線纜在聯入機柜的入口處，應至少預留1m，同時各種線纜的預留長度相互之間的差別應不超過0.5m。

　　3. In terms of cable reservation, for fixed installation cabinets, there should be no reserved wire length inside the cabinet. The reserved wire should be reserved in a concealed place with a length between 1m-1.5m. For movable cabinets, all cables connected to the cabinet should be reserved at least 1m at the entrance of the cabinet, and the difference in reserved length between various cables should not exceed 0.5m.

　　4、 纜線終接后，應有余量。

　　4. After the cable is terminated, there should be a margin.

　　5、 光纜布放宜盤留，預留長度宜為3~5m，有特殊要求的應按設計要求預留長度。

　　5. The optical cable layout should be coiled and reserved with a length of 3-5m. If there are special requirements, the reserved length should be according to the design requirements.

　　6、 不同電壓等級，不同電源類別的線路應分開布置，分隔敷設。

　　6. Lines of different voltage levels and power supply categories should be arranged and laid separately.

　　7、 引入機柜內的纜線應從機柜的下方進入機柜，沿機柜后方兩側立桿向上引入配線架，卡入跳線架連接快內的單根線纜色標應和跳線架的色標相一致，大對數線纜按標準色譜的組合規定進行排序。

　　7. The cables introduced into the cabinet should enter from the bottom of the cabinet, and be led upwards along the vertical poles on both sides of the cabinet to the distribution frame. The single cable connected to the jumper frame should have the same color code as the jumper frame, and the large number of cables should be sorted according to the combination regulations of the standard color spectrum.

　　8、 接線端子各種標志應齊全，數據配線架及交換機設備安裝完成后，標貼機打標簽，注明對應房間號以及端口號。

　　8. The various markings of the wiring terminals should be complete. After the installation of the data distribution frame and switch equipment, the labeling machine should label them with the corresponding room number and port number.

　　9、 纜線在接終端錢，建議核對纜線標識內容是否正確。、

　　9. When connecting the cable to the terminal, it is necessary to check whether the cable identification content is correct. 、

　　10、 纜線中間不允許有接頭。

　　10. No joints are allowed in the middle of the cable.

　　11、 纜線終接處建議牢固、接觸良好。

　　11. The cable termination must be firm and in good contact.

　　12、 纜線終接應符合設計和施工操作規程。

　　12. Cable termination should comply with the design and construction operating procedures.

　　13、 對絞電纜與插接件連接應認準線號、線位色標，不得顛倒和錯接。

　　13. The connection between twisted pair cables and connectors should identify the wire number, wire position color code, and should not be reversed or misconnected.

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