Organization Cabling in Data Center

Cable Equipment Data Center is the horizontal cabling, backbone wiring and switching equipment in the relevant fields. Backbone wiring connects the Entrance Room, MDA and HDA. The horizontal wiring – is part of the SCS from the point of termination to the EDA to the horizontal distribution point in one area of HDA.

As the backbone wiring actually aggregated traffic coming from the horizontal lines, it must have the appropriate bandwidth. The implementation of horizontal and backbone postings, according to the standards implemented for the data center on a constant basis for SCS hierarchical star. It allows only one level of hierarchy for backbone wiring, which implies that one distribution point.

However, the standards provide redundant wiring. For this purpose we introduce the region of secondary wiring, switching point which is connected to the distribution points of the horizontal wiring, duplicating compounds with the basic wiring.

Standard EN 50173-5 includes the use of cable equipment to twisted pair and optical fiber. The minimum capacity of copper systems is determined by the class E. The minimum capacity for optics – Class OF-300, implemented fiber OM-2 or OM-3. The standard provides the length of optical fiber cable channels in the OM-1, OM-2 and OM-3.

TIA/EIA-942 Standard provides for the application of cable equipment, switching equipment and wiring cables in accordance with AN-SI/TIA/EIA-568-B.2 and VZ. This is a transmission medium of a twisted pair to the characteristic impedance of 100 ohms, a multimode fiber (62,5 / 125 or 50/125) and single-mode fiber.

In addition, a number of applications allow the use of coaxial cable with impedance of 75 ohms. Process Longevity for the solutions that are implemented in the newly developed projects, provide some types of cable. In TIA/EIA-942 recommended twisted pair is sixth category and optimized for laser fiber.

Given that at the time of TIA/EIA-942 absent standard twisted-pair sixth category is possibly an indication of the type of cable that is preferred for use in data centers. The length of the cable channels (with patch cords) in the horizontal wiring for cable of any type should not exceed more than 100 m. For the solutions with a singular line, in which HDA is integrated with MDA, the length of optical cable ducts can reach 300 m.

Standard TIA/EIA-942 puts forward a number of requirements and recommendations concerning the organization of cabling. All computer and switching equipment is housed in enclosures and racks.

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