SIST EN 13149-2:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Öffentlicher Verkehr - Planungs- und Steuerungssysteme für Straßenfahrzeuge - Teil 2: WORLDFIP LeitungsspezifikationTransport public - Systemes de planification et de contrôle des véhicules routiers - Partie 2: Spécifications de câblage WORLDFIPPublic transport - Road vehicle scheduling and control systems - Part 2: WORLDFIP cabling specifications43.040.15Car informatics. On board computer systems35.240.60Uporabniške rešitve IT v transportu in trgoviniIT applications in transport and trade03.220.20Cestni transportRoad transportICS:Ta slovenski standard je istoveten z:EN 13149-2:2004SIST EN 13149-2:2005en01-januar-2005SIST EN 13149-2:2005SLOVENSKI
STANDARDSIST ENV 13149-2:20031DGRPHãþD



SIST EN 13149-2:2005



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13149-2July 2004ICS 35.240.60; 43.080.20; 45.060.01Supersedes ENV 13149-2:2000
English versionPublic transport - Road vehicle scheduling and control systems -Part 2: WORLDFIP cabling specificationsÖffentlicher Verkehr - Planungs- und Steuerungssystemefür Straßenfahrzeuge - Teil 2: WORLDFIP Spezifikation fürdie VernetzungThis European Standard was approved by CEN on 1 April 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13149-2:2004: ESIST EN 13149-2:2005



EN 13149-2:2004 (E) 2 Contents page Foreword.3 1 Scope.4 2 Normative references.4 3 Cabling specifications.4 3.1 General remarks.4 3.2 Characteristic impedance.5 3.3 Polarity.5 3.4 Signal conductors.5 3.5 Connections between devices.5 3.6 Connection/disconnection of a device.5 3.7 Spur length.6 3.8 Connectors.7 3.9 Branch cable polarity:.7 3.10 Cable jointing.8 3.11 Clustered connections to the bus.8 3.12 Multiple clusters.9 3.13 Shield ground connection.10 3.14 Shield connections at a device.10 3.15 Noise from additional circuits.11 3.16 Trunk terminating load resistance.11 3.17 Test tap connection.12 3.18 Test device.13 3.19 Power circuit initialisation.13 3.20 Continuous power conditions.13 3.21 Power circuit distribution and protection.13 3.22 Cabling inside a vehicle.13 3.22.1 General.13 3.22.2 Electrical isolation.13 3.22.3 Vehicle cable ducts.13 Annex A
(informative)
Cable specifications.14 Annex B
(informative)
Data transmission trunk cable installation guidelines.15 Bibliography.17
SIST EN 13149-2:2005



EN 13149-2:2004 (E) 3 Foreword This document (EN 13149-2:2004) has been prepared by Technical Committee CEN/TC 278, "Road Transport and Traffic Telematics", the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. This document supersedes ENV 13149-2:2000 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 13149-2:2005



EN 13149-2:2004 (E) 4
1 Scope This document defines the cabling specifications for an onboard data transmission bus between the different parts of equipment for service operations and monitoring of the fleet. This document is applicable to equipment installed onboard buses, trolley buses and tramways only as part of a bus fleet operation. This equipment include operations aid systems, automatic passenger information systems, fare collection systems, etc. Equipment directly related to the functioning of the vehicle (e.g. driver dashboard, engine management, brake systems, door opening systems) are excluded from the scope of this document and are dealt with in other standardisation bodies. This document is not applicable to tramways operated as part of a train, subway or metro operation. Two alternative transmission buses will be accepted. This document refers to one of them (known as WORLFIP and specified in EN 50170). A second set of standards will be published for the other solution (so called CAN). The selected bus system, between the two standardised alternatives, shall be subject to an agreement between each transport operating organisation and its equipment providers. This document covers the link between equipment inside a single vehicle. Although it could be applied to multiple vehicles, this application is not explicitly covered by this document. This document is the second part of a set of standards related to the onboard transmission bus, which will define the following aspects for each allowed transmission bus: — choice of the bus and general application’s rules (EN 13149-1) — cabling specifications (EN 13149-2, this document) — message content specifications (prCEN TS 13149-3, under development) 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50170
General purpose field communication system EN 61158-2:1994
Fieldbus standard for use in industrial control systems; part 2: physical layer specification and service definition (IEC 61158-2:1993)
3 Cabling specifications 3.1 General remarks The principles for the coupling of devices to the data transmission bus focus upon the longer term objectives which are to achieve the least necessary number of variants, rather than to allow for the profusion of interim and migratory solutions which may occur initially. This is especially important for public transport road vehicles, which are generally equipped in different non-correlated stages (for example, first the fare collection system, then the radio and automatic location system some months or years later, etc.) SIST EN 13149-2:2005



EN 13149-2:2004 (E) 5 It is important to understand that electrical connections onto the bus have some impact upon the network performance, and that the practice is dependant upon the principles relevant to transmission lines rather than simple electrical power circuits. Since one of the main objectives is to provide the minimum amount of cabling on vehicles the basic power concepts are also covered with flexibility to suit different circumstances. 3.2 Characteristic impedance The main trunk circuit shall be a single pair twisted and shielded cable of nominal characteristic impedance of 150 Ohms at 1Mhz with overall braided shie
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