Data Communications

[Almanac]

As I could see that most of our newbie members are interested in Data Communications, I might as well start off discussing Data Communications and Computer Networks. So, for a start, I would want to discuss Communications Cable.

Communications Cable - a cable that transmits information signals between geographically separated points. The heart of a communications cable is the transmission medium, which may be optical fibers, coaxial conductors, or twisted wire pairs. A mechanical structure protects the heart of the cable against handling forces and the external environment. The structure of a cable depends on the application.

Optical communications cables are used in both terrestrial and undersea systems. Optical communications cables for terrestrial use may be installed aerially, by direct burial, or in protective ducts. The terrestrial cable requires only enough longitudinal strength to support its own weight over relatively short pole-to-pole spans, or to allow installers to pull the cable into ducts or lay it in a trench. For the undersea cable, the high-strength steel strand allows it to be laid and recovered in ocean depths up to 4.5 mi (7315 m).

There you have it. Should there are things that you want to add, feel free to reply on this thread. Otherwise, if you feel like the topic which you may want to discuss isn't related to this thread, better start on a new thread.

Almanac for you!