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horizontal wiring

The floor cabling is to be carried out as part of an area-wide planning and installation for all office rooms, taking into account reserve connections. The floor cabling, which is also referred to as horizontal cabling, includes the tertiary area from the floor distributor( EV) to the telecommunications outlets( TA).

The floor area should be a maximum of 1000 square meters, with a maximum distance of 100 meters from the floor distributor to a terminal. In this context, 90 m is defined for the fixed cabling up to the junction box, and the remaining 10 m is accounted for by the patch cable and the connecting cable. In the revision of the standard, the workstation cabling is specified as a channel, with the connecting cable being taken into account with a length of 5 m, and a patch cable also being taken into account with a length of 5 m.

Concept for tertiary cabling

Floor cabling with floor distributors and connected terminal equipment

Floor cabling with floor distributors and connected terminal equipment

The tertiary area starts at the floor distributor and ends at the respective end device. The floor distributors are usually designed as distribution cabinets or wall distributors. The cross-floor data cables are laid on patch panels. The cables to the junction boxes are distributed via consolidation points( CP). The cabling standards provide for star-shaped cabling. Since each cable is thus set up as a point-to-point connection, these connections can be designed individually and flexibly

For increased security requirements or very high data rates, multimode and monomode fibers can be used for fiber-to-the-desk applications, and of course UTP cables ofcategories 3, 4 and 5 (cat 5).

Structure of a tiered cabling system

Structure of a tiered cabling system

Tertiary cabling should be based on future communications needs and take into account broadband communications( FDDI, ATM, TP-PMD) in addition to the connection of standard networks( Ethernet, Token Ring, ISDN). For these services, cabling in accordance with category 5 or higher is required for cables and connection components, which means that link classes D, E and F are realized.

Requirements for tertiary cabling

The following requirements are placed on the floor cabling:

Connection of wall outlets in the offices or work areas to the floor distributor; universal outlet and plug technology, if necessary divided according to voice and data transmission; use of suitable cable route systems, such as raised floors, suspended ceilings, underfloor systems, walkable cable ducts; network-independent cabling; any relocatability of workstations; expandability; flexibility.

Englisch: horizontal wiring
Updated at: 28.01.2017
#Words: 386
Links: cabling, area, account, horizontal cabling, electric vehicle (EV)
Translations: DE

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