SIST EN 61375-3-1:2012
(Main)Electronic railway equipment - Train communication network - Part 3-1: MVB - Multipurpose Vehicle Bus (IEC 61375-3-1:2012)
Electronic railway equipment - Train communication network - Part 3-1: MVB - Multipurpose Vehicle Bus (IEC 61375-3-1:2012)
IEC 61375-3-1:2012 applies where MVB is required.
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk - Teil 3-1: Multipurpose Vehicle Bus (MVB) (IEC 61375-3-1:2012)
Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 3-1: Bus de véhicule multifonctions (MVB) (CEI 61375-3-1:2012)
La CEI 61375-3-1:2012 s'applique lorsque le MVB est exigé.
Železniške elektronske naprave - Komunikacijsko omrežje vlaka - 3-1. del: MVB - Večnamensko podatkovno vodilo vozila (IEC 61375-3-1:2012)
Ta del standarda IEC 61375 velja za vso opremo in naprave, ki se uporabljajo v skladu s standardom IEC 61375-3-1, tj. zajema postopke, ki jih je treba uporabljati za tako opremo in naprave v primeru dokazovanja skladnosti. Uporaba tega standarda za izvedbo komunikacijskega omrežja vlaka (TCN) omogoča posamezno preverjanje skladnosti same izvedbe in je pogoj za nadaljnje preverjanje interoperabilnosti med različnimi izvedbami komunikacijskega omrežja vlaka.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk - Teil 3-1: Multipurpose Vehicle Bus (MVB) (IEC 61375-3-1:2012)Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 3-1: Bus de véhicule multifonctions (MVB) (CEI 61375-3-1:2012)Electronic railway equipment - Train communication network - Part 3-1: MVB - Multipurpose Vehicle Bus (IEC 61375-3-1:2012)45.020Železniška tehnika na splošnoRailway engineering in generalICS:Ta slovenski standard je istoveten z:EN 61375-3-1:2012SIST EN 61375-3-1:2012en01-oktober-2012SIST EN 61375-3-1:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 61375-3-1 NORME EUROPÉENNE
EUROPÄISCHE NORM August 2012
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61375-3-1:2012 E
ICS 45.060
English version
Electronic railway equipment -
Train communication network (TCN) -
Part 3-1: Multifunction Vehicle Bus (MVB) (IEC 61375-3-1:2012)
Matériel électronique ferroviaire -
Réseau embarqué de train (TCN) -
Partie 3-1: Bus de Véhicule Multifonctions (MVB) (CEI 61375-3-1:2012)
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk -
Teil 3-1: Multipurpose Vehicle Bus (MVB) (IEC 61375-3-1:2012)
This European Standard was approved by CENELEC on 2012-07-26. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Foreword The text of document 9/1644/FDIS, future edition 1 of IEC 61375-3-1, prepared by IEC/TC 9 "Electrical equipment and systems for railways" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61375-3-1:2012.
The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-04-26 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2015-07-26
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this document.
Endorsement notice The text of the International Standard IEC 61375-3-1:2012 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60332-1-2 NOTE
Harmonized as EN 60332-1-2. IEC 60870 series NOTE
Harmonized in EN 60870 series. IEC 61158-2 NOTE
Harmonized as EN 61158-2.
- 3 - EN 61375-3-1:2012 Annex ZA (normative)
Normative references to international publications with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
IEC 60245-1 - Rubber insulated cables - Rated voltages up to and including 450/750 V -
Part 1: General requirements - -
IEC 60304 - Standard colours for insulation for low-frequency cables and wires HD 402 S2 -
IEC 60332-1-1 - Tests on electric and optical fibre cables under fire conditions -
Part 1-1: Test for vertical flame propagation for a single insulated wire or cable - ApparatusEN 60332-1-1 -
IEC 60571 - Electronic equipment used on rail vehicles - -
IEC 60794-1-1
- Optical fibre cables -
Part 1-1: Generic specification - General EN 60794-1-1 -
IEC 60807 Series Rectangular connectors for frequencies below 3 MHz
- -
IEC 60870-5-1 - Telecontrol equipment and systems -
Part 5: Transmission protocols - Section 1: Transmission frame formats EN 60870-5-1 -
IEC 61375-2-1 - Electronic railway equipment - Train communication network (TCN) -
Part 2-1: Wire Train Bus (WTB) EN 61375-2-1 -
ISO/IEC 8482 - Information technology - Telecommunications and information exchange between systems - Twisted pair multipoint interconnections - -
ISO/IEC 8802-2
- Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements -
Part 2: Logical link control - -
ISO/IEC 8824 Series Information technology - Abstract Syntax Notation One (ASN.1) - -
ISO/IEC 8825 Series Information technology - ASN.1 encoding rules - -
ISO/IEC 9646 Series Information technology - Open Systems Interconnection - Conformance testing methodology and framework
- -
ISO/IEC 13239 - Information technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures - -
Publication Year Title EN/HD Year
ITU-T Recommendation Z.100 - Specification and Description Language (SDL)- -
- 5 - EN 61375-3-1:2012 Annex ZZ (informative)
Coverage of Essential Requirements of EU Directives
This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its scope the standard covers all relevant essential requirements as given in Annex III of the EU Directive 2008/57/EC.
Compliance with this standard provides one means of conformity with the specified essential requirements of the Directive concerned.
WARNING: Other requirements and other EU Directives may be applicable to the products falling within the scope of this standard.
IEC 61375-3-1 Edition 1.0 2012-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Electronic railway equipment – Train communication network (TCN) –
Part 3-1: Multifunction Vehicle Bus (MVB)
Matériel électronique ferroviaire – Réseau embarqué de train (TCN) –
Partie 3-1: Bus de Véhicule Multifonctions (MVB)
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XF ICS 45.060 PRICE CODE CODE PRIX ISBN 978-2-88912-070-3
– 2 – 61375-3-1 ¤ IEC:2012 CONTENTS FOREWORD . 8 INTRODUCTION . 10 1 Scope . 12 2 Normative references. 12 3 Terms and definitions, abbreviations and conventions . 13 3.1 Terms and definitions . 13 3.2 Abbreviations . 30 3.3 Conventions . 31 3.3.1 Base of numeric values . 31 3.3.2 Naming conventions. 32 3.3.3 Time naming conventions . 32 3.3.4 Procedural interface conventions . 32 3.3.5 Specification of transmitted data . 35 3.3.6 State diagram conventions . 37 4 Physical Layer . 38 4.1 Topology . 38 4.1.1 Segments . 38 4.1.2 Couplers . 38 4.1.3 Double-line segments . 39 4.2 Device classes . 39 4.2.1 Capabilities . 39 4.2.2 Class 0 devices . 40 4.2.3 Class 1 devices . 40 4.2.4 Class 2 devices . 40 4.2.5 Class 3 devices . 40 4.2.6 Class 4 devices . 40 4.2.7 Class 5 devices . 40 4.2.8 Device Attachment . 41 4.3 Specifications common to all media . 41 4.3.1 Signalling speed . 41 4.3.2 Propagation delays . 41 4.3.3 Transceiver interface . 41 4.3.4 Redundant medium (option) . 42 4.4 Electrical Short Distance medium (choice) . 43 4.4.1 ESD topology . 43 4.4.2 ESD configuration rules . 44 4.4.3 ESD section specifications . 45 4.4.4 ESD shielding . 45 4.4.5 ESD medium-dependent interface . 46 4.4.6 ESD Line_Unit specifications . 48 4.4.7 ESD signal wave form . 48 4.4.8 ESD transmitter . 49 4.4.9 ESD receiver . 50 4.5 Electrical Middle Distance medium (choice) . 51 4.5.1 EMD topology . 51 4.5.2 EMD configuration rules . 51 SIST EN 61375-3-1:2012
61375-3-1 ¤ IEC:2012 – 3 – 4.5.3 EMD terminator. 52 4.5.4 Cable section . 52 4.5.5 EMD shielding. 53 4.5.6 EMD medium-dependent interface . 54 4.5.7 EMD Line_Unit specifications . 57 4.5.8 EMD signal waveform . 58 4.5.9 EMD transmitter specifications . 58 4.5.10 EMD receiver specifications . 62 4.6 Optical Glass Fibre medium (choice). 63 4.6.1 OGF topology . 64 4.6.2 OGF optical cable and fibre . 64 4.6.3 OGF medium-dependent interface . 64 4.6.4 OGF test signal (guideline) . 65 4.6.5 OGF transmitter specifications . 66 4.6.6 OGF receiver specifications . 66 4.6.7 OGF active star coupler . 67 4.6.8 OGF double-line layout (option) . 68 5 Medium-dependent signalling . 68 5.1 Frame encoding and decoding . 68 5.1.1 Conventions . 68 5.1.2 Bit encoding . 69 5.1.3 Non-data symbols . 69 5.1.4 Start Bit . 69 5.1.5 Start Delimiter . 69 5.1.6 End Delimiter . 70 5.1.7 Valid frame (definition) . 71 5.1.8 Detection of line idle . 71 5.1.9 Detection of collision . 71 5.1.10 Receiver behaviour in case of error . 71 5.1.11 Jabber halt . 71 5.2 Line redundancy (option) . 72 5.2.1 Principle . 72 5.2.2 Redundant transmission. 72 5.2.3 Redundant reception . 72 5.2.4 Switchover . 72 5.2.5 Redundancy status report . 73 5.3 Repeater . 73 5.3.1 Repeater between single-line segments . 74 5.3.2 Repeater for redundant medium (option) . 74 6 Frames and telegrams . 75 6.1 Frame format . 75 6.1.1 Master Frame format . 75 6.1.2 Slave Frame format . 75 6.1.3 Check Sequence . 76 6.2 Telegram timing . 77 6.2.1 Conventions . 77 6.2.2 Reply delay (definition) . 77 6.2.3 Frame spacing at the source . 79 6.2.4 Frame spacing at the destination. 79 SIST EN 61375-3-1:2012
– 4 – 61375-3-1 ¤ IEC:2012 6.2.5 Frame spacing at the master . 80 6.3 Detection of correct frames, collision and silence by the master . 81 6.3.1 Correct frame (definition) . 81 6.3.2 Detection of collision by the master . 81 6.3.3 Detection of silence by the master . 81 7 Link Layer Control . 81 7.1 Addressing . 81 7.1.1 Device Address . 81 7.1.2 Logical_Address . 81 7.1.3 Group_Address . 82 7.2 Master Frames contents . 82 7.2.1 Master Frame format . 82 7.2.2 F_code encoding . 82 7.3 Slave Frame contents . 83 7.3.1 Slave Frame format . 83 7.3.2 Size error . 84 7.4 Telegram types . 84 7.4.1 Process Data telegram . 84 7.4.2 Message Data . 85 7.4.3 Supervisory Data telegrams . 86 8 Medium allocation . 87 8.1 Organisation . 87 8.1.1 Turn . 87 8.1.2 Basic Period . 87 8.1.3 Padding . 88 8.2 Periodic Polling . 88 8.2.1 Periodic List . 88 8.2.2 Individual Period . 88 8.2.3 Periodic Phase construction . 89 8.3 Event Polling . 90 8.3.1 Group_Address . 90 8.3.2 Event_Round . 91 8.3.3 Recommended event search algorithm . 93 8.3.4 Supervisory Data frames for Event_Arbitration . 94 8.4 Devices_Scan . 96 8.4.1 Device_Status . 96 8.4.2 Device_Status protocol . 98 8.4.3 Devices_Scan protocol . 99 9 Mastership transfer . 99 9.1 Mastership transfer operation . 99 9.1.1 Bus administrator configuration . 99 9.2 Mastership transfer specifications . 100 9.2.1 States . 100 9.2.2 Time-outs for mastership transfer . 103 9.3 Supervisory data frames for mastership transfer . 103 9.3.1 Device_Status telegram . 103 9.3.2 Mastership transfer telegram . 104 10 Link Layer Interface . 104 10.1 Link Layer layering . 104 SIST EN 61375-3-1:2012
61375-3-1 ¤ IEC:2012 – 5 – 10.2 Link Process Data interface . 105 10.3 Link Message Data interface . 105 10.3.1 General . 105 10.3.2 Priority . 106 10.3.3 Packet size . 106 10.3.4 Protocol_Type. 106 10.3.5 Message Transport Protocol . 106 10.4 Link Supervision Interface . 106 10.4.1 General . 106 10.4.2 Link Supervision Interface procedures . 106 10.4.3 MVB_Status . 107 10.4.4 MVB_Control . 107 10.4.5 MVB_Devices . 108 10.4.6 MVB_Administrator . 108 10.4.7 MVB_Report . 110 11 Real-Time Protocols . 111 12 Gateway Function . 111 13 Network Management . 111 13.1 Contents of this clause . 111 13.2 MVB Managed objects . 111 13.2.1 MVB link objects . 111 13.3 MVB Services and management messages . 112 13.3.1 MVB link services . 112 Bibliography . 126
Figure 1 – Reference device and structure of the document . 11 Figure 2 – State transition example . 37 Figure 3 – MVB configuration . 39 Figure 4 – Transceiver interface . 42 Figure 5 – Example of ESD segment . 43 Figure 6 – Example of terminator. 44 Figure 7 – ESD backplane section (double-line) . 46 Figure 8 – ESD connector arrangement . 47 Figure 9 – ESD terminator connector arrangement . 48 Figure 10 – Example of start of frame (ESD) . 49 Figure 11 – End of an ESD frame (both cases) . 50 Figure 12 – EMD medium . 51 Figure 13 – Shielding (single-line segment) . 53 Figure 14 – Single-line device attachment . 54 Figure 15 – Double-line device attachment to EMD . 55 Figure 16 – EMD connectors arrangement . 56 Figure 17 – EMD terminator strapping . 57 Figure 18 – Example of start of an EMD frame . 58 Figure 19 – Example of pulse waveform at EMD transmitter . 60 Figure 20 – Example of end of EMD frame . 61 Figure 21 – EMD receiver test signal . 62 SIST EN 61375-3-1:2012
– 6 – 61375-3-1 ¤ IEC:2012 Figure 22 – Optical link . 64 Figure 23 – Optical connector (dimensions in millimeters) . 65 Figure 24 – Example of start of OGF frame . 66 Figure 25 – Edge jitter . 67 Figure 26 – Example of active star coupler . 67 Figure 27 – Example of a duplicated star coupler . 68 Figure 28 – "0" and "1" data encoding . 69 Figure 29 – Non_Data symbols encoding . 69 Figure 30 – Master Start Delimiter . 70 Figure 31 – Slave Start Delimiter . 70 Figure 32 – Example of End Delimiter for EMD medium . 70 Figure 33 – Example of a valid frame (OGF medium) . 71 Figure 34 – Signal skew . 72 Figure 35 – Example of repeater for single-line attachment . 74 Figure 36 – Example of repeater connecting a double-line to a single line segment . 75 Figure 37 – Master Frame Format . 75 Figure 38 – Slave Frames . 76 Figure 39 – Telegram timing . 77 Figure 40 – Example of Reply delay. 78 Figure 41 – Frame spacing at the source side . 79 Figure 42 – Frame spacing at the destination(s) . 79 Figure 43 – Frame spacing at the master side . 80 Figure 44 – Master Frame contents . 82 Figure 45 – Word ordering in a Slave Frame . 84 Figure 46 – Process Data telegram . 84 Figure 47 – Message Data telegram . 85 Figure 48 – Supervisory Data telegram . 86 Figure 49 – Basic Periods . 87 Figure 50 – Example of construction of the Macro_Cycle . 90 Figure 51 – General_Event_Request frame format . 94 Figure 52 – Group_Event_Request frame (M = 6, C = ABCDEF) . 94 Figure 53 – Single_Event_Request frame . 95 Figure 54 – Event_Identifier_Response frame . 95 Figure 55 – Device_Status_Request . 96 Figure 56 – Device_Status_Response . 96 Figure 57 – Device_Status of Class 1 device . 97 Figure 58 – Device_Status of Class 2/3/4/5 device . 97 Figure 59 – Device_Status of a device with Bus Administrator capability . 97 Figure 60 – Device_Status of a device with Gateway capability . 98 Figure 61 – Mastership Transfer states . 102 Figure 62 – Device_Status_Request (sent by current master) . 103 Figure 63 – Device_Status_Response (sent by proposed master) . 103 Figure 64 – Mastership_Transfer_Request (sent by current master) . 104 SIST EN 61375-3-1:2012
61375-3-1 ¤ IEC:2012 – 7 – Figure 65 – Mastership_Transfer_Response (sent by proposed next master) . 104 Figure 66 – Link Layer Layering . 105
Table 1 – Template for the specification of an interface procedure . 34 Table 2 – Example of message structure . 35 Table 3 – Example of textual message form (corresponding to Table 2) . 36 Table 4 – State transitions table . 37 Table 5 – MVB devices capabilities . 40 Table 6 – Pin assignment for the ESD connector . 47 Table 7 – Pin assignment for the EMD connector . 56 Table 8 – Master Frame types and F_code . 83 Table 9 – LS_RESULT encoding . 107 Table 10 – MVB_Status object . 107 Table 11 – MVB_Control object . 108 Table 12 – MVB_Devices object . 108 Table 13 – MVB_Administrator object . 109 Table 14 – LS_V_REPORT encoding . 111 Table 15 – Example of mvb_administrator_list . 123
– 8 – 61375-3-1 ¤ IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
ELECTRONIC RAILWAY EQUIPMENT –
TRAIN COMMUNICATION NETWORK (TCN) –
Part 3-1: Multifunction Vehicle Bus (MVB)
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61375-3-1 has been prepared by IEC technical committee 9: Electrical equipment and systems for railways. This first edition cancels
and replaces the clauses of IEC 61375-1, second edition, published in 2007, relevant to the specification of MVB and constitutes a technical revision. It was prepared taking into account IEC 61375-1 third edition. The text of this standard is based on the following documents: FDIS Report on voting 9/1644/FDIS 9/1668/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. SIST EN 61375-3-1:2012
61375-3-1 ¤ IEC:2012 – 9 – This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of IEC 61375 series, under the general title Electronic railway equipment – Train communication network (TCN), can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be
‡ reconfirmed, ‡ withdrawn, ‡ replaced by a revised edition, or ‡ amended.
– 10 – 61375-3-1 ¤ IEC:2012 INTRODUCTION This part of IEC 61375
specifies one component of the Train Communication Network, the Multifunction Vehicle Bus (MVB), a serial data communication bus designed primarily, but not exclusively, for interconnecting equipment where interoperability and interchangeability are needed. This part specifies: a) the physical media in single-line and double-line configurations; b) the signalling and the redundancy handling; c) the format and timing of the transmitted frame and telegrams; d) the organisation of the bus traffic; e) the allocation of Mastership; f) the management of the bus; g) the Link Layer interface and the layer management interface. This part is structured following the OSI layers of a reference MVB device as shown in Figure 1: Caluse 4
Physical Layer
x Electrical medium for short distance (RS-485, 20,0 m) x Electrical medium for middle distance (transformer-coupled, 200,0 m) x Optical fibre for long distances (glass fibres, 2,0 km) Clause 5 Medium-dependent signalling x Frame encoding and decoding
x Line Unit interface x Physical redundancy handling Clause 6 Frames and telegrams x Master Frame and Slave Frame encoding, Telegram timing Clause 7 Link Layer Control x Addressing x Master Frame and Slave Frame format Clause 8 Medium allocation x Periodic Polling
x Event Polling x Devices Scan Clause 9 Mastership transfer x Regular and exceptional mastership transfer Clause 10 Link Layer Interface x Link Process Data Interface (LPI), x Link Message Data Interface (LMI), x Link Supervision Interface (LSI). Clause 11 Real-Time Protocols Clause 12 Gateway Function Clause 13 Network Management
61375-3-1 ¤ IEC:2012 – 11 –
Figure 1 – Reference device and structure of the document redundant line (optional)frame encoder / decoder link control frame formats and content redundancy handling link layer adapter 4 5 8 10 medium attachment unit interface transceiver interface link layer interface Clause mastership transfer line unit interface 9 6 7medium allocation periodic, event, supervisory scan frames and telegramscoding, timing and synchronisation layer
management LPI LMI Protocolsmanagement signalling signalling LSI Electrical_Short_ Distance (ESD) Electrical_Middle_ Distance (EMD) Optical_Glass_ Fibre (OGF) Physical Layer
frame encoder / decoder Station Real-Time SIST EN 61375-3-1:2012
– 12 – 61375-3-1 ¤ IEC:2012 ELECTRONIC RAILWAY EQUIPMENT –
TRAIN COMMUNICATION NETWORK (TCN) –
Part 3-1: Multifunction Vehicle Bus (MVB)
1 Scope This part of IEC 61375 applies where MVB is required.
2 Normati
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...