CONTENTS

 1     Scope
 2     Normative references
 3     Definitions
 4     Abbreviations
 5     General description
 6     Functions of the DL-FRAME SSCS
 7     Specification of the DL-FRAME SSCS
        7.1     The service of the DL-FRAME SSCS
        7.2     The CPCS service of the AAL type 5
        7.3     PDU format
        7.4     Mapping the DL-FRAME-primitive into the AAL type 5 CPCS signal (transmitter)
        7.5     Mapping the AAL type 5 CPCS signal into the DL-FRAME-primitive (receiver)
        7.6     Layer management