These wires are twisted into 4 pairs of wires, each pair has a common color theme. For example, above a false ceiling or below a raised floor. Plenum rated cable should/must be used whenever the cable travels through an air circulation space. Solid cable is meant for longer runs in a fixed position. It is more flexible and resilient than solid cable and easier to work with, but really meant for shorter lengths. Braided cable tends to work better in 'patch' applications for desktop use.

Bulk cable comes in many types, there are 2 basic categories, solid and braided cable. Shielded cable works also, but isn't necessary. Use quality grade UTP Category 5/ 5e/ 6 networking cable, don't skimp on this. Some of this information was derived from Steven Nikkel's Web site.

This section describes the network cable configuration associated with the following Ethernet LAN (Local Area Network) standards over copper UTP (Unshielded Twisted Pair): Ethernet (10BaseT), Fast Ethernet (100BaseTX), and Gigabit Ethernet (1000BaseT/1000BaseTx).

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