NBN EN 61334-6 : 2001

Introduction
Clause
1 Scope and object
2 Normative references
3 General characteristics of A-XDR
4 Structure of an encoding
5 Rules for encoding
  5.1 The Identifier field
  5.2 The Length field
  5.3 The Contents field
6 Encoding procedures
  6.1 Encoding of an INTEGER value
  6.2 Encoding of an BOOLEAN value
  6.3 Encoding of an ENUMERATED value
  6.4 Encoding of an BIT STRING value
  6.5 Encoding of an BYTE STRING value
  6.6 Encoding of an CHOICE value
  6.7 Tagged types (implicit, explicit and ASN.1
       explicit tagging)
  6.8 OPTIONAL and DEFAULT components
  6.9 Encoding of a SEQUENCE value
  6.10 Encoding of the VisibleString type
  6.11 Encoding of the GeneralizedTime type
  6.12 Encoding of the ASN.1 NULL type/value
Annex A (informative) Extensibility
Annex B (informative) ASN.1 types and keywords used
         in DLMS
Annex C (informative) Examples of A-XDR encoding for
         DLMS PDUs
Annex ZA (normative) Normative references to
         international publications with their
         corresponding European publications

States a set of encoding rules, the A-XDR3 encoding rules, that may be used to derive the specification of a transfer syntax for values of types defined in the DLMS core standard using the ASN.1 notation.