Implementação de uma solução modular e escalável das funções DAED para o nível 2 do sistema de sinalização por canal comum número 7 usando dispositivos de lógica programável

Abstract

This dissertation presents an implementation in VHDL of the MTP-2 layer of SS7, Low part, together with a Programmable Switching Matrix, to reach, as more generic as possible, a modular, portable (reusable) and scalable solution to be used in various technologies and telecommunications equipments with different architectures and capabilities. As parallel contributions, this work includes: the development of a methodology for implementing digital circuits in VHDL based on a visual description using flowcharts; the proposing of a technique for generating random vectors using the MATLAB software for simulation and validation of digital circuits using hardware description language, allowing the detection of fault conditions that would hardly be evaluated with manually generated vectors. As a result, this work generated practical use artifact, presenting a substantial increase capacity on treatment of SS7 links in telecommunications equipments, when compared with previous related works.