RICHARDSON, Texas, July 6 -- Fujitsu Network Communications Inc. said that Centennial de Puerto Rico is expanding its agreement to incorporate two of Fujitsu's Flash high-capacity metro SONET transport systems into their network. The agreement calls for Fujitsu to deploy its Flash600 ADX and Flash2400 ADX next generation metro SONET platforms to build new networks and provide incremental network coverage. The equipment will be used in point-to-point and ring configurations with full add/drop capabilities for Centennial customer networks. Centennial will also use and benefit from these platforms on their own backbone network. Fujitsu will deploy the equipment first in San Juan, and eventually in Puerto Rico's major island rings covering such cities as Mayaguez, Ponce, Aguadilla and San German.