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The TPC-5 Cable Network (TPC-5 CN) is the first self-healing trans-Pacific undersea optic fiber ring network. The TPC-5 CN consists two optic fiber pairs, stretching 22560 km, linking six cable landing stations in Japan, Guam, Hawaii and the US mainland. The TPC-5 CN forms a four-fiber-ring automatic protection switching network among the six cable landing stations, each fiber pair capable of 5 Gbps transmission.

The southern route of the TPC-5 CN was put into service in 1995, while its northern route was ready for service on December 31, 1996. The consortium member invested totally US$1.24 billion in the TPC-5 cable network.