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在21世纪的信息社会,电缆电视将成为美国人生活和工作的重要媒介工具。美国在发展电缆电视网过程中采用高新科技,运用经营管理手段,开展多种服务项目来扩大其影响,使美国电缆电视技术和服务项目都居国际领先水平。 目前,美国最先进的玻璃纤维光缆大量用于电缆电视及其他通信网。 美国的普通电缆电视网中,A和B干线电缆均采用了玻璃纤维光缆技术,人称为“纤维主干线”。在新建造的电缆电视网中,线路及支线电缆的所有连接
In the 21st century information society, cable television will become an important media tool for Americans to live and work. In the process of developing the cable television network, the United States adopted high-tech technology, used operational management tools, and launched a variety of service projects to expand its influence, so that the United States cable television technology and service projects are at the international advanced level. At present, the most advanced fiberglass cable in the United States is used in cable television and other communication networks. In the ordinary cable television network in the United States, A and B trunk cables are all made of glass fiber optic cable technology, which is known as the “fiber trunk line.” In the newly constructed cable television network, all connections of the line and branch cable