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1. ndcupgrades November 10, 2010 at 3:52 pm

   I install both CAT5e/6e UTP/STP cabling for a living, would be happy to share any information that you require.

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2. Shaba! November 10, 2010 at 4:36 pm

   Structured Cabling is a set of standards that determine how to wire a data center, office or building for data or voice communications, using Category 5 or Category 6 cable and RJ45 sockets. These standards define how to lay the cabling in a star formation, such that all outlets terminate at a central patch panel (which is normally 19 inch rack-mounted), from where it can be determined exactly how these connections will be used. Each outlet can be ‘patched’ into a data network switch (normally also rack mounted alongside), or patched into a ‘telecoms patch panel’ which forms a bridge into a private branch exchange (PABX) telephone system, thus making the connection a voice port.

   Lines patched as data ports into a network switch require simple straight-through patch cables at the other end to connect a computer, whereas voice patches to PABXs require an adaptor at the remote end to translate the RJ45 pin config into a 6-pin BT socket. Depending on the type of PABX, these may need to be ‘master’ or ‘secondary’ adaptors.

   It is normal to see different colour patch cables used in the patch panel to help identify which type of connection is being carried, though the structured cabling standards do not require this.

   The standards demand that all eight connectors in the Cat6 cable are connected, resisting the tempation to ‘double-up’ or use one cable for both voice and data. This is generally a good thing as it means that they fully support features such as Power over Ethernet which require the so-far unused brown cables.

   Structured cabling falls into the following six sub-systems:

   Entrance Facilities is where the building interfaces with the outside world.
   Equipment Rooms host equipment which serves the users inside the building.
   Telecommunications Rooms are where various telecommunications and data equipment resides, connecting the backbone and horizontal cabling sub-systems.
   Backbone Cabling as the name suggests carries the signals between the entrance facilities, equipment rooms and telecommunications rooms.
   Horizontal Cabling is the wiring from telecommunications rooms to the individual outlets on the floor.
   Work-Area Components connect end-user equipment to the outlets of the horizontal cabling sub-system

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