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日前,山东省邮电管理局召开新闻发布会,向社会宣布山东省引进美国AT8LT公司2.5Gb/s光同步传输系统(SDH)工程马上开工。陈建国副省长、省直有关委办厅局领导、AT&T中国公司代表及近20家新闻单位记者出席了新闻发布会。 SDH是当今世界上最先进的传输技术手段,与目前普遍采用的PDH(同步传输系统)相比,具有技术新、容量大、可靠性强等优点。山东省本次引
Recently, the Shandong Provincial Posts and Telecommunications Administration held a press conference to announce to the public that Shandong Province will immediately start the project of introducing 2.5Gb / s optical synchronous transmission system (SDH) from the United States AT8LT Company. Chen Jianguo, vice governor, provincial directly under the leadership of the Commission Office, AT & T China company representatives and nearly 20 news units attended a news conference. SDH is the most advanced transmission technology in the world. Compared with the currently used PDH (Synchronous Transmission System), SDH has the advantages of new technology, large capacity and high reliability. Shandong Province this lead