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Last updated at: (Beijing Time) Thursday, December 18, 2003

China has put up globe-covering seabed optical cable network

China by now has built 16 seabed optical cables in seven systems, reaching landing stations of over 30 countries and regions and forming a high-speed digital and optical communication network covering the whole world.


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China by now has built 16 seabed optical cables in seven systems, reaching landing stations of over 30 countries and regions and forming a high-speed digital and optical communication network covering the whole world.

The international cable system of China Telecom is a complete network boasting adequate communication capacity, advanced technological performance and safe, steady operation. The nation's seabed optical cable technology has evolved from PDII series to SDII series, then to the most internationally advanced DWDM system. The carrying capacity of optical cable has expanded from the first 560Mb/s to the present 7.2T (or million Mb/s), increased by ten thousand times and able to serve hundred million users simultaneously without interfering with each other.

By People's Daily Online


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