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Homepage>BS Standards>03 SOCIOLOGY. SERVICES. COMPANY ORGANIZATION AND MANAGEMENT. ADMINISTRATION. TRANSPORT>03.060 Finances. Banking. Monetary systems. Insurance>20/30424838 DC BS ISO 3531-1. Financial services. Financial information eXchange session layer Part 1. FIX TagValue encoding
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immediate downloadReleased: 2020-10-07
20/30424838 DC BS ISO 3531-1. Financial services. Financial information eXchange session layer Part 1. FIX TagValue encoding

20/30424838 DC

BS ISO 3531-1. Financial services. Financial information eXchange session layer Part 1. FIX TagValue encoding

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Standard number:20/30424838 DC
Pages:24
Released:2020-10-07
Status:Draft for Comment
DESCRIPTION

20/30424838 DC


This standard 20/30424838 DC BS ISO 3531-1. Financial services. Financial information eXchange session layer is classified in these ICS categories:
  • 03.060 Finances. Banking. Monetary systems. Insurance

The Financial Information eXchange tagvalue encoding is the original encoding used for FIX messages. The tagvalue encoding is the encoding used by the FIX session layer; it corresponds to the Presentation Layer of the ISO Open Systems Interconnection model. The encoding uses an integer number known as a tag to identify the field, followed by the “=” character (hexadecimal 0x3D), then the value of that field encoded in the ISO 8859-1 character set. Each tagvalue pair is separated by the Start of Heading control character (hexadecimal value 0x01), which is defined by ISO 6429:1992. The tagvalue encoding also supports the encoding of binary and multibyte character data in certain encoded data fields that are preceded by a Length field.