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Design and Implementation of B-ISDN User Part Signal Generator and Analyzer

A B-ISDN (Broadband Integrated Service Digital Network) User Part signal generator and analyzer has been developed as the result of this M.Sc. thesis. The purpose of this project is to design a tool for testing the ATM (Asynchronous transfer mode) switch.A literature survey had been done before the design and implementation started. Both B-ISDN and ATM broadband technology have been studied with special attention paid on the B-ISDN user part protocol according to ITU-T (the former CCITT) recommendations.An user friendly graphical interface has been developed in order to allow the user to constructing the B-ISUP messages in a easy way. A signal analyzer has also been developed in order to present the B-ISDN message in a hierarchical structure, which greatly reduced the difficulty of reading the B-ISDN message in the binary level. Furthermore, the user is given such a possibility of building own signal sequences and associating the outgoing and incoming message in a logical way, it is easy to study each response message with its initial message. Both outgoing and incoming messages/sequences can be saved in secondary memory in form of an ASCII file and can be reloaded later for analyzing the signals.This thesis describes the background of this project and the design and implementation process of the signal generator.