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日本KDD最近成功地完成一次新的大容量海底光缆的试验工作。这种系统的传输速率为10Gb/s,相当于120 000条64kb/s话路。最近的这次试验使用了4500公里长的海底光缆,中间约有140个中继器,原计划传输速率为5Gb/s,实际试验使用的速率则是计划的两倍。
KDD of Japan recently successfully completed the trial of a new high-capacity submarine cable. The transmission rate of this system is 10Gb / s, equivalent to 120,000 64kb / s speech path. The most recent test used a 4500 kilometer undersea fiber optic cable with about 140 repeaters in the middle, originally planned for a transmission rate of 5Gb / s and actually used twice as fast as planned.