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Standard ECMA-285
ASN.1 for Computer Supported Telecommunications Applications (CSTA) Phase III

4th edition (December 2011)

This Standard specifies application protocol data units (APDUs) for the services described in ECMA-269.

Clause 5 to clause 7 inclusive describes the concepts underlying the Remote Operations model, notation and service.
Clause 8 to clause 27 inclusive contains CSTA-specific protocol details and forms the main part of this Standard.

The protocol in this Standard operates in the context of an application association.

This Standard inherits LocationInfo from ECMA-269. Since most of the ASN.1 compilers cannot resolve the type “any”, as used in ECMA-323 for LocationInfo, a distinct implementation from the required RFC 4119 has been made.

Further information on the CSTA topic is also available.

The following files can be freely downloaded:

File name Size (Bytes) Content
ECMA-285.pdf 1 623 633 Acrobat (r) PDF file 1 181 783 See below

The file contains the following files:

  • folder asn1-source – contains the ASN.1 source files derived from ECMA-285, 4th edition, that can be used with many industry compilers.
  • acse_user_info_csta.asn1 - This file specifies the "CSTAFunctionality" parameter type that is defined in ECMA-218 (CSTA Phase II Protocol). It needs be compiled with the above file (see 8.2.2 in ECMA-285).
  • rose94.asn1 - This file specifies the Remote Operations ASN.1 definitions. It may be required by come compilers that do not provide the Remote Operations definitions automatically.
  • readme.txt - This file contains the above description.

Note: depending upon the compiler used, two duplicate tags can be expected (Reject, ACSEUserInformationForCSTA). These are normal and should not affect the compiled output.

This Ecma publication has been fast-tracked to ISO/IEC JTC 1 to be approved as ISO/IEC 18052 3rd edition.

The previous replaced "historical" edition of this Ecma Standard is available here.


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