Structured Cabling

Structured cabling design and installation is governed by a set of standards that specify wiring data centers, offices, and apartment buildings for data or voice communications using various kinds of cable and fiber optic cabling and modular connectors. These standards define how to lay the cabling in various topologies in order to meet the needs of the customer, typically using a central patch panel (which is normally 19 inch rack-mounted), from where each modular connection can be used as needed. Each outlet is then patched into a network switch for network use or into an IP or PBX (private branch exchange) telephone system patch panel.

Lines patched as data ports into a network switch require simple straight-through patch cables at each end to connect a computer. Voice patches to PBXs in most countries require an adapter at the remote end to translate the configuration on 8P8C modular connectors into the local standard telephone wall socket.

It is common to color code patch panel cables to identify the type of connection, though structured cabling standards do not require it except in the demarcation wall field.

Cabling standards demand that all eight conductors in Cat5/5e/6 cable are connected, resisting the temptation to 'double-up' or use one cable for both voice and data. IP phone systems, however, can run the telephone and the computer on the same wires.

Network cabling standards are used internationally and are published by ISO/IEC, CENELEC and the Telecommunications Industry Association. Building Industry Consulting Service International is a recognized independent trainer of structured cabling installers with manufacturer independent design and installation best practice documents, it also plays a major role in developing and designing.