IEC 62056-42:2002

FOREWORD
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Overview
5 Service specification
   5.1 List of services
        5.1.1 Connection establishment/release related
              services
        5.1.2 Data communication services
        5.1.3 Layer management services
   5.2 Use of the physical layer services
   5.3 Service definitions
        5.3.1 PH-CONNECT.request
        5.3.2 PH-CONNECT.indication
        5.3.3 PH-CONNECT.confirm
        5.3.4 PH-ABORT.request
        5.3.5 PH-ABORT.confirm
        5.3.6 PH-ABORT.indication
        5.3.7 PH-DATA.request
        5.3.8 PH-DATA.indication
6 Protocol specification
   6.1 Physical layer protocol data unit
   6.2 Transmission order and characteristics
   6.3 Physical layer operation - description of the
        procedures
        6.3.1 General
        6.3.2 Setting up a physical connection
        6.3.3 The identification service
        6.3.4 Data communications
        6.3.5 Disconnection of an existing physical
              connection
Annex A (informative) An example: PH service primitives
        and Hayes commands
Annex B (informative) Data model and protocol
Bibliography
Figures

IEC 62056-42:2002 specifies the physical layer services and protocols within the Companion Specification for Energy Metering (COSEM) three-layer connection oriented profile for asynchronous data communication. In annex A, an example of how this physical layer can be used for data exchange through the Public Switched Telephone Network (PSTN) using intelligent Hayes modems is given. Annex B gives an explanation of the role of data models and protocols in electricity meter data exchange. This bilingual version (2013-05) corresponds to the monolingual English version, published in 2002-02.