Multimode fibres provide a number of paths for light pulses to follow as they traverse a cable. Single-mode has only one path. The wavelength of the light source and size of the core determine the number of modes. Single-mode fibre has an 8.3 um core. By comparison, the average human hair is 80 um thick.
Structured wiring is a new technology created for the home automation and home networking markets.
The term structured is derived from the construction of a cable assembly of several cable types. The bundle is wrapped with a spiral nylon rope or encased in a material such as polypropylene. The assembly is comprised of two RG-6 and two CAT5 cables. Some companies also incorporate two 62-um fibre cables. A uniquely different colour sheaving identifies each cable.