Structured cabling (or universal building cabling) creates a future-proof basis for networks regardless of applications, because it enables simple installation of network components and can be flexibly expanded at any time.
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Over 20 years ago, the first version of the "application-neutral communication cable system" was specified in EN 50173. Despite many initial optimization aspects, the standard has prevailed over the last few years. The usability and acceptance of its first version led to the gradual standardization of IT cabling in buildings without office workstations. Whether data centers or industrial buildings, there is a European or national cabling standard for everything.
Manufacturer-neutral cabling standards have existed since 1995, as globally valid standards (ISO/IEC 11801 plus others), as European standards (EN 50173) and as German standards (DIN/EN 50173), which largely represent a translation of EN 50173 with minor national changes. In addition to the central series of standards EN 50173, there are other important standards such as:
At the beginning of 2016, the first European series of standards for "Data centre facilities and infrastructures" consisting of EN 50600-1, EN 50600-3-1 and EN 50600-2-1 to -2-5 was completed. The series of standards contains the latest definitions for the construction of facilities and infrastructures for data centers. As the focus is on growth and migration of new applications, the standard recommends structured cabling as the best choice for data centers.
Requirements and recommendations for cabinets, cable routing systems and cable management have been partially removed from EN-50174-2 and further developed or additionally defined. These specifications serve to sharpen the planner's view of growth and migration and thus avoid chaos in the expansion and reconfiguration of cabling.
As of availability class 2, the new EN 50600-2-4 standard makes the use of a central patch location in the main distribution frame mandatory. This so-called Cross Connect is connected to all cabinets in the data center and ensures that all cabinets can be connected to each other. A cross connect in the main distribution area can be planned and dimensioned according to the planned growth through a maximum consideration.
In EN 50173-5 and the globally valid ISO standard (ISO/IEC 11801), cabling is structured on the basis of hierarchy levels. These levels are formed by groups that belong together topologically or administratively.
Structured network cabling is based on star-shaped structures on which other topologies such as ring, tree or bus topologies can be easily mapped. The requirements of a modern switched network are optimally supported by the star-shaped cabling.
The individual cabling areas are divided into terrain cabling (primary cabling), building cabling (secondary cabling) and floor cabling (tertiary cabling). Maximum permissible cable lengths and other quality requirements are defined for each cabling area.
The network`s direct interface for the user are the network sockets, which can be installed in different ways. Network sockets on cable ducts, in walls and in bandwidths are common. Similar to copper cables, a standard exists for optical fiber that defines the properties and type of plug connections.
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