EN 60870-5-103:1998

Foreword
1 Scope and object
2 Normative references
3 Definitions
4 General rules
  4.1 Protocol structure
  4.2 Physical layer
  4.3 Link layer
  4.4 Application layer
  4.5 User process
  4.6 Compatibility with companion standards of the IEC
      60870-5 series
5 Physical layer
  5.1 Fibre optic transmission
  5.2 EIA RS-485 interface
6 Link layer
  6.1 Selections from IEC 60870-5-1 (transmission frame
      formats)
  6.2 Selections from IEC 60870-5-2 (link transmission
      procedures)
  6.3 Additional specifications to IEC 60870-5-2
7 Application layer
  7.1 Selections from IEC 60870-5-3 (general structure
      of application data)
  7.2 Selections from IEC 60870-5-4 (definition and
      coding of application information elements)
  7.3 Definition and presentation of ASDUs
  7.4 Application functions
8 Interoperability
  8.1 Physical layer
  8.2 Link layer
  8.3 Application layer
Annex A (informative) Generic functions - Examples of
         constructing a directory
Annex B (informative) Generic functions - Examples of ASDUs
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Applies to protection equipment with coded bit serial data transmission for exchanging information with control systems. Defines a companion standard that enables interoperability between protection equipment and devices of a control system in a substation.