UNISUR is an optical submarine telecommunications cable system in the South Atlantic Ocean linking Argentina, Uruguay, and Brazil.
It has landing points in: Florianópolis, Santa Catarina State, Brazil Maldonado, Maldonado Department, Uruguay Las Toninas, Buenos Aires Province, Argentina
It has a design transmission capacity of 560 Mbit/s and a total cable length of 1,720 km. It started operation on 16 November 1994.
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