| 词条 | TAT-9 |
| 释义 | TAT-9 was the 9th transatlantic telephone cable system, in operation from 1992 to 2004, operating at 560Mbits/sec (80,000 telephone circuits) between Europe (Goonhilly, United Kingdom ; Saint-Hilaire-de-Riez, France ; Conil de la Frontera, Spain) and North America (Manahawkin, United States ; Pennant Point, Nova Scotia, Canada). [1] It was built by an international consortium of co-owners and suppliers. Co-owners included AT&T Corporation, British Telecom and France Telecom. TAT-9 was the first fiber optic system to operate at 565 Mbit/s, twice the speed of the first transatlantic fiber optic system, TAT-8. It was also the first system to have the ability to switch traffic on demand between the five landing points: Canada, the United States, France, Spain and the United Kingdom. This enabled the smaller countries in the network to afford their own landing points, and also allowed the network to accommodate for large changes in traffic demands at any individual station, such as the dramatic increase during the 1992 Olympic Games in Barcelona. The first-ever fiber optic switching devices that allowed for switching were called Undersea Branching Multiplexers (UBMs). 1. ^{{Cite web|url=http://atlantic-cable.com//Cables/CableTimeLine/index1951.htm|title=History of the Atlantic Cable & Submarine Telegraphy - Cable Timeline|website=atlantic-cable.com|access-date=2018-08-05}} {{Transatlantic telephone cables}}{{DEFAULTSORT:Tat-09}} 5 : Transatlantic communications cables|British Telecom buildings and structures|AT&T buildings|Orange S.A.|Infrastructure completed in 1992 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。