The Fiber Optics Illustrated Dictionary - Part 17 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary of cables leading into a building or distribution frame. Cable vaults are usually used in situations where the type or number of cables pose extra fire or electrocution risks and where it is desirable to restrict access to qualified personnel only. cablehead The point at which a land cable and marine cable are joined. It may be indicated with a sign as are seen on ocean beaches . cableway A hole slot or other opening in a component unit or work surface that allows cables to be fed into the fixture from behind or beneath. Most computer desks now include slots and holes for cables. Some even put slots into the drawers so a printer can be installed in a drawer and pulled out as needed. Cabling Standards Update A quarterly newsletter describing high-speed network trends technologies standards activities and economic indicators for a range of transmission media including copper wire glass and plastic optical fiber coaxial cable and wireless published by Information Gatekeepers Inc. CAC 1. Customer Administration Center. A phone console used for maintenance and diagnosis of a multiline phone system. 2. See call admission control connection admission control. cache v. In the traditional sense to cache something is to put it away or hide it in a secure place for later use. In computer terminology the sense of putting it away for later retrieval is retained but ease of access is also implied. Thus to cache is to store information in an accessible location as in RAM on a computer so it can be retrieved quickly when needed. Many systems are specifically configured with cache memory while others may use the hard drive as a cache location which is not as fast but still may be effective in certain circumstances. Information is cached by an applications program for items that are often consulted or executed. This speeds up operations for priority activities. See cache cache memory RAM disk. cache cache memory A high-speed electronic memory .
