CONTENTS

Annex D  SDL definition of the AAL type 2 signalling protocol CS-2
        D.1     Introduction
        D.2     The SDL system diagram
        D.3     The SDL block structure diagram
        D.4     SDL specification for the nodal function
                  D.4.1     Introduction
                  D.4.2     SDL diagrams for the nodal function 1
                  D.4.3     Procedures in the nodal function
                  D.4.4     Data structures of AAL type 2 signalling messages and parameters
        D.5     SDL diagrams for the protocol entities
                  D.5.1     Introduction
                  D.5.2     SDL diagrams for the outgoing, incoming, and maintenance protocol procedures