IEEE 1473-1999 pdf download IEEE Standard for Communications Protocol Aboard Trains
1.Overview
This standard is divided into eight clauses and an informative annex. Clause 1 through Clause 3 define thescope, purpose, references, and terminology associated with this standard. Clause 4 defines the composition.relationship, and uses of the two network technologies covered by this standard. The Type L protocol and itsphysical layer specifications, based upon EIA 709.1-1998′ and EIA 709.3-1998 is defined in Clause 5. TheIype T protocol, based upon IEC 61375-1: 1999, is defined in Clause 6. Clause 7 defines the networkingaspects between the two networks. Clause 8 defines the common application components. Annex A providesa bibliography.
1.1 Scope
This standard defines the protocol for intercar and intracar serial data communications between subsystemsaboard passenger trains. lt sets forth the minimum acceptable parameters for a network that cansimultaneously handle monitoring and control traffic from multiple systems. While the network itself is noivital, it is intended to be capable of carrying vital messages. This standard will be structured with respect tothe OSI seven-layer model.
1.2 Purpose
A standard protocol will permit systems provided by a variety of suppliers performing different on-boardfunctions to share a common communications facility. Car wiring and weight will be reduced while systemsintegrationreliability. and maintainability will be improved.
2.References
This standard shall be used in conjunction with the following publications. When the following publicationsare superseded by an approved revision, the revision shall apply. In case of a conflict between this standardand the referenced document, this standard shall take precedence. Those provisions of the referenceddocuments, which are not in conflict with this standard, shall apply as referenced.
EIA 709.1-1998, Control Network Protocol Specification. 2
EIA 709.3-1998, Free-Topology Twisted-Pair Channel Specification.
IEC 61375-1: 1999, Electric railways equipment—Train bus—Part 1: Train communication network. 3
IEEE Std 100-1996, The IEEE Standard Dictionary of Electrical and Electronics Terms, Sixth Edition. 4
ROSIN, Railways Data Types, INT48/ABBCRC/WP04/V1.0/Non. 97. 5
ST-ITS-TCIP-OB, October 1, 1998, ITE Transit Communications Interface Profiles Standard on On-Board Objects, Version 1.0. 6
3. Definitions, abbreviations, and acronyms
3.1 Definitions
For the purposes of this standard, the following terms and definitions apply. IEEE Std 100-1996 should beconsulted for terms not defined in this clause. Because the rail transit industry possesses a significant amountof unique terminology, the Urban Public Transportation Glossary (B17) has been utilized as a source formany of the following definitions. Webster’s New Collegiate Dictionary (B18] shall otherwise apply.
3.1.1 apparatus: A device or system of devices that performs a distinct function within a basic operatingunit, including a device or system of devices whose principal function is data communications.
3.1.2 apparatus interoperability: The ability of any specific apparatus to communicate with otherapparatuses in such a way that it can successfully replace another apparatus of the same type without anyrequiremment for manual configuration other than the address or unique identifier of the replacementapparatus.
3.1.3 apparatus type: A predefined configuration that, when adhered to by a given apparatus, makes itpossible for that apparatus to achieve apparatus interoperability, without restriction on the internal construc-tional details of the apparatus concerned.
3.1.4 authority having jurisdiction: That entity that defines the contractual (including specification)requirements for the procurement.
3.1.5 basic operating unit: (A) A single vehicle designed for independent operation. (B) A permanent orsemipermanent combination, designed for independent operation, consisting of two or more vehicles of one
or more types.
IEEE 1473-1999 pdf download
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