Structured building cabling

Structured building cabling

High-performance, end-to-end LAN cabling system

Cabling designed by experts, operational flexibility, modularity as well as fast and easy installation with guaranteed performance characteristics: that is our high-performance, end-to-end, harmonized cabling system for structured building cabling.
Copper and fiber-optic cabling technology are combined in an optimum cabling concept – simple, flexible, cost-efficient.

Turnkey solution for building cabling

  • Cost and time savings thanks to cables pre-assembled on one side.
  • The innovative focus of the solution lies in the forward-looking glass fiber technology which covers most possibilities in terms of bandwidth.
  • Prospective network planning and on-site installation by experts from Rosenberger OSI or our qualified partners within the framework of our single-source solution.

Do you have any questions about planning, installing or maintaining your building cabling? We would be delighted to help. 
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High-performance components for structured building cabling

  • Components for the primary and secondary sectors (data distribution racks, fiber-optic distributors and splice boxes, fiber-optic cables)
  • Components for the tertiary sector (copper connection panels, copper cables)
  • Connecting components (fiber-optic pigtails and patchcords, copper patchcords and keystone modules)

More information on pre-assembled LAN cabling solutions

Structured building cabling with a pre-assembled solution – how you benefit

Pre-assembled cables such as PerCONNECT® and well-trained personnel bring "clout" to the construction site. The cable length is already determined during preliminary planning, which eliminates cut waste and cable waste on the construction site, as well as unnecessary measurements. The cables only have to be laid and connected on site. The result is a time saving of between 40 and 60% during installation. You can rely on an optimised solution for cabling in buildings – one that meets the criteria of the EN 50173 series of standards. 


Time and cost savings
of up to 20% at the installation site


Minimum 15% reduction
in the fire load


Highest currently available
fire protection class

Rosenberger OSI - Your expert partner for LAN cabling

You buy more than just a cabling system from us – at your request, we can also support you in planning your network, coordinating the project and installing it on site. If you want, we will also provide you with the support you need and supply everything from a single source. Planning, production, installation and commissioning of the active and passive technology. We analyse existing building infrastructures and develop revitalization concepts. Do you have any questions about our products and services for LAN cabling? We would be delighted to help. Contact us

News & Media

Press Releases

Awarded as Digital Innovation Leader

Award as "Digital Innovation Leader 2020" (F.A.Z. Institute) for the patents submitted in the field of FO infrastructure.

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Splice solution vs. pre-assembly

Prefabrication saves time and money
High quality ex works

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Office network

How can a network be made flexible and scalable?

How can a network be made flexible and scalable?
Networks growing with the company.

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Singlemode or multimode glass fiber?

How can performance and costs be meaningfully evaluated against each other? A comprehensive need analysis is the key to success.

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Any other questions?

Here you will find answers to various questions on the topic of structured cabling. 

What does structured cabling mean?

Conventional structured cabling represents a concept that permits service-independent, universally applicable pre-cabling in order to support network-based information and communications applications operating between buildings. This means that the type of cable and the employed structure guarantee the use of all known protocols, the use of all technologies (Ethernet, Fast Ethernet, Gigabit Ethernet, Token Ring, FDDI, ATM), as well as the use of a range of services (ISDN, SNA). This is intended to prevent incorrect installation and expensive extensions and simplify the installation of new network components. Structured cabling is subdivided into the primary, secondary and tertiary cabling sectors.

What is important in terms of structured cabling?

The generally applicable structure of the cabling is essentially defined by the corresponding standards. However, the standardized scope provides very little flexibility. The challenge therefore lies in taking account of terminal device connections that will be required in the future within the broadest possible planning horizon. This is because the architecture of a conventional structured cabling solution generally makes integrations and extensions very expensive – typically costing 2 to 3 times more than an initial installation. In most cases, this is the key problem, because the requirements placed on the cabling infrastructure often change due to spatial reorganizations or restructuring work. Although “watertight” future planning that caters for numerous different eventualities is possible, such an approach vastly increases the overall project costs (Capex).

What is referred to as primary or campus cabling?

The primary cabling is the connection between the buildings at a site and is also referred to as campus or site cabling. This extends from the site distributor through to the connected building distributors. The primary cabling often requires long cable lengths of several hundred metres. Fiber-optic cables are particularly well suited for cabling between buildings thanks to their low attenuation, coupled with a particularly high data transmission rate. Another argument in their favour lies in their insensitivity to electromagnetic interference and the galvanic isolation of buildings they produce.

What is referred to as secondary or story cabling?

The secondary cabling extends from the building distributor through to the connected downstream distributors, which are also known as floor or story distributors. Here again, cable lengths of over 100 meters are often required, thus making the use of copper cables impossible. In addition, fiber-optic cables also permit the galvanic isolation of individual stories or building sections at the level of the data cabling.

What is referred to as tertiary or floor cabling?

The tertiary sector provides for the cabling of floor or story distributors through to the connecting sockets and is therefore often referred to as floor cabling. In conventional structured cabling, the floor distributor is connected to the connecting sockets for the terminal devices in a radial configuration. In the cabling standard, the length of the path between the distributor and the connecting sockets is limited to max. 90 m plus 2 times 5 m. Twisted-pair copper cables are used for these relatively short paths.

What are the advantages of pre-assembly compared to a splice solution?

In principle, the costs are similar because the use of materials is the same. However, manpower is becoming an ever rarer and more expensive commodity at the installation site. The great advantage of pre-assembled cables lies in their fast, simple installation. Thanks to the time saved, it takes fewer people to implement a project. Alternatively, multiple projects can be realized with the same personnel level. Pre-assembled cables are also factory-measured. By contrast, splice solutions or on-site installations always have to be checked using measurement technology prior to acceptance and this operation consumes additional time. As the last link in the implementation chain, the “data systems engineering” sector often has to work under considerable time pressure. The use of pre-assembled cables saves time during the project and may even help make up any time that has already been lost.