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我国ＳＤＨ研制工作又获新突破由邮电部武汉邮电科学研究院承担的国家“８６３”项目２．４８８Ｇｂ／ｓＳＤＨ高速光纤传输系统日前通过技术鉴定。这是我国首次自行研制成功的最高速率的光纤传输系统。同步数字系列（ＳＤＨ）是一种新型传输系统，是当前世界关注的焦点之...
China SDH Development Has Made New Breakthrough The 2.488Gb / s SDH high-speed optical fiber transmission system under the state “863” project undertaken by the Wuhan Posts and Telecommunications Scientific Research Institute of the Ministry of Posts and Telecommunications passed the technical appraisal. This is the first time our country developed the highest-speed optical fiber transmission system. Synchronous Digital Hierarchy (SDH) is a new transmission system that is the focus of the current world ...