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DENM and IVIM Message Trees
The structure of DENM 1.3.1 and IVIM 1.2.1 as Mobilidata publishes them, generated from the ASN.1 definitions of the standards: every field with its type, whether it is mandatory or optional, its value range (with the unit where the CDD defines one) and its definition. Pick a message and click a field to see the details.
For CAM, SRM, SSM, SPaT, MAP and TLCConf, see the Dutch Profile Message Trees .
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Sources: DENM according to ETSI EN 302 637-3 v1.3.1 (ASN.1 in Annex A, descriptions and data setting requirements in Annex B) with the common data dictionary ETSI TS 102 894-2 v1.3.1. IVIM according to the ASN.1 published on the Mobilidata documentation (IVIM-PDU-Descriptions with ISO/TS 19321:2015 and its dependencies), with the IVI service rules of ETSI TS 103 301 clause 7.
The trees are generated from the ASN.1: Mandatory and Optional follow the OPTIONAL keyword, Default marks an optional field with a DEFAULT value and Choice marks one alternative of a CHOICE. Definitions come from the CDD and EN 302 637-3 Annex B, or else from the comments in the ASN.1. ISO/TS 19321 itself is not included here, so most IVI-specific fields show their type and value range without a definition. In case of doubt, the standard prevails.