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“七五”国家重点科技攻关项目——合肥至芜湖140Mbit/s单模直埋光缆通信系统试验工程于1991年5月24～26日通过国家验收。合肥——芜湖光缆工程是我国自行研制、建设的具有先进水平的直埋光缆通信干线。该工程北起安徽省合肥市、南至芜湖市,途径肥东、巢湖、含山、和县、无为五县,全长146km,内分两个数字段,合肥、巢湖、芜湖为三个端站,另设有人中继站1个,无人中继站两个。通信系统使用1.3μm波长,传输140Mbit/s数字信号,近期运行方式一主一备,今后为三主一备。
“Seventh Five-Year” national key scientific and technological project - Hefei to Wuhu 140Mbit / s single-mode optical fiber buried cable communication system test project in May 1991 May 24 to 26 through the national acceptance. Hefei - Wuhu optical cable project is China’s own research and construction with the advanced level of buried optical fiber communication trunk. The project starts from Hefei in Anhui Province and goes to Wuhu in the south in the direction of Feidong, Chaohu, Hanshan, Hexian and Wuwei counties, with a total length of 146km and two digital sections in it. Hefei, Chaohu and Wuhu are three terminal stations There is also a human relay station 1, no two relay stations. Communication system uses 1.3μm wavelength, transmitting 140Mbit / s digital signal, the recent mode of operation of a master and a backup, the future for the three master a backup.