R&D at Telebras-CPqD: the TROPICO RA project

A summary is presented of Telebras R&D activities, highlighting the TROPICO system, which is an integrated family of digital switching equipment. The first two elements of the TROPICO family (TROPICO C AND TROPICO R) have already been completely industrialized and installed in the Brazilian network. The first commercial exchanges for TROPICO RA were installed in 1990. Efforts to attain a high degree of technological independence in telecommunications has proven to be very successful.<
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