Redes de acesso: o futuro do cabo de cobre e a era da fibra óptica

Abstract

This research presents an approach about the means of transmission: metallic pair copper and optical fiber used in access networks with their physical and technological characteristics and their capabilities in operators of fixed telephony. The paper presents the concepts of telecommunications networks and equipment involved from the switching network to the end user. To understand the need for improvements in access networks describe the technological innovations that require a higher bandwidth consumption as well as a comparative of the technologies used by telephone companies in Brazil. The results show how the alternative fixed operators deploying new networks using fiber optic networks and the gradual migration of metallic pair.