Alcatel Cable SA reports that a consortium led by its Alcatel Submarcom venture, in which AT&T Co and Pirelli SpA are the other members, has signed a $53m contract to install a submarine cable between Argentina, Brazil and Uruguay: the team will run 1,071 miles of optical fibre cable in two pairs from Florianpolis in Brazil to Las Tolinas in Argentina and Maldonado in Uruguay to create the Unisur system, which will have capacity of 560Mbps and will link South America to the global optical fibre network via the existing Americas I and Colombus II systems; the new system is due to be completed next year.