摘要
广电双向接入网建设经过过去10年的发展,经历了从早期少量广电采用传统的"CMTS、LAN接入"到"基带Eo C、窄带Eo C、高频/低频Eo C"等多种Eo C接入技术百花齐放的尝试和探讨,逐步到今天形成同轴电缆接入以CMTS接入技术和Eo C接入技术平分秋色的局面。随着"光进铜退"的发展,光节点覆盖范围进一步缩小,光纤逐步到楼,到楼栋,广电也开始逐步试点和发展FTTH光纤到户。
Through past ten years of development, the construction of two-way access network in TV broadcasting industry has experienced a journey from the traditional ＂CMTS and LAN access＂ as adopted by TV broadcasting in the early time through trial and exploration of flourishing EoC access technologies such as ＂Base band EoC, narrow band EoC, high and low-frequency EoC＂ to neck and neck of CMTS access technology and EoC access technology of coaxial cable at present. Along with the evolution of ＂optical access for replacing copper access＂ , the coverage area of optical node is further narrowed. The fiber gradually expands its presence to each building and even each floor. TV broadcasting also starts to gradually pilot and develop fiber to the home （FTTH）.
出处
《广播电视信息》
2015年第10期82-85,共4页
Radio & Television Information
