IEC 61375-1:2007

Electric railway equipment - Train bus - Part 1: Train communication network

Applies to data communication in open trains, that is covers data communication between vehicles of the said open trains and data communication within the vehicles of the said open trains. Allows for interoperability of individual vehicles within open trains in international traffic. May also be applicable to closed trains and multiple unit trains when so agreed between purchaser and supplier. This edition includes the following significant technical changes with respect to the previous edition: technical amendments in clauses 2, 3 and 4 where some inconsistencies were removed.

General Information

• Status: Replaced
• Publication Date: 10-Apr-2007
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: MT 43 - TC 17/SC 17C/MT 43
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 21-Jun-2012

Relations

• Replaced By: IEC 61375-3-1:2012 - Electronic railway equipment - Train communication network (TCN) - Part 3-1: Multifunction Vehicle Bus (MVB)
• Effective Date: 05-Sep-2023
• Replaced By: IEC 61375-2-1:2012 - Electronic railway equipment - Train communication network (TCN) - Part 2-1: Wire Train Bus (WTB)
• Effective Date: 05-Sep-2023
• Revises: IEC 61375-1:1999 - Electric railway equipment - Train bus - Part 1: Train Communication network
• Effective Date: 05-Sep-2023
• Revised: IEC 61375-1:2012 - Electronic railway equipment - Train communication network (TCN) - Part 1: General architecture
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 61375-1
Second edition
2007-04
Electric railway equipment –
Train bus –
Part 1:
Train communication network
Reference number
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INTERNATIONAL IEC
STANDARD 61375-1
Second edition
2007-04
Electric railway equipment –
Train bus –
Part 1:
Train communication network
PRICE CODE
Commission Electrotechnique Internationale
XH
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 61375-1 © IEC:2007(E)
CONTENTS
FOREWORD.13
INTRODUCTION.15

1 General .17
1.1 Scope.17
1.2 Normative references .17
1.3 Terms and definitions .18
1.4 Abbreviations.35
1.5 Conventions .37
1.6 General considerations .43
1.7 Conformance Test .48
2 Real-Time protocols.49
2.1 General .49
2.2 Variables – Services and Protocols .51
2.3 Messages Services and Protocols.72
2.4 Presentation and encoding of transmitted and stored data. 173
3 Multifunction Vehicle Bus .193
3.1 General . 193
3.2 Physical Layer . 195
3.3 Medium-dependent signalling. 229
3.4 Frames and telegrams . 236
3.5 Link Layer Control .242
3.6 Medium allocation. 248
3.7 Mastership transfer.260
3.8 Link Layer Interface . 265
4 Wire Train Bus (WTB) .273
4.1 General . 273
4.2 Physical layer . 275
4.3 Medium-dependent signalling. 296
4.4 Frames and telegrams . 304
4.5 Link Layer Control .308
4.6 Medium allocation. 329
4.7 Inauguration .331
4.8 Link layer interface .380
5 Train Network Management . 393
5.1 General . 393
5.2 Manager, Agents and interfaces. 394
5.3 Managed objects .397
5.4 Services and management messages . 407
5.5 Interface Procedures . 469

Annex A (informative) Tutorial on the TCN architecture . 473
Annex B (normative) Guidelines for conformance testing . 599

Bibliography . 600

61375-1 © IEC:2007(E) – 3 –
Figure 1 – Layering of the TCN.16
Figure 2 – State transition example .42
Figure 3 – Interfaces between equipment .43
Figure 4 – Interfaces between vehicles.43
Figure 5 – Train Bus and Vehicle Bus.44
Figure 6 – TCN configurations.45
Figure 7 – TCN device configuration options.46
Figure 8 – Structure of the Train Communication Network .49
Figure 9 – Real-Time Protocols layering .50
Figure 10 – LPI primitives exchange.54
Figure 11 – Check_Variable .59
Figure 12 – Individual access .63
Figure 13 – Set access.67
Figure 14 – Cluster access.70
Figure 15 – Terminal station.72
Figure 16 – Router station between WTB and MVB.73
Figure 17 – Packet format .75
Figure 18 – Link layer data transmission.77
Figure 19 – Link_Message_Data_Interface (LMI) .78
Figure 20 – Example of MVB Message_Data frame .79
Figure 21 – Example of WTB Message_Data frame.80
Figure 22 – LMI primitives .81
Figure 23 – Network layer on a Node.88
Figure 24 – Encoding of the Network_Address.91
Figure 25 – Building of the addresses in an outbound packet.93
Figure 26 – Network address encoding on the vehicle bus (example MVB).95
Figure 27 – Network address encoding on the train bus (example with WTB) .96
Figure 28 – Transport packet exchange. 102
Figure 29 – Packet formats (transport layer body). 105
Figure 30 – State transition diagram of the MTP . 114
Figure 31 – Time-out SEND_TMO . 118
Figure 32 – Time-out ALIVE_TMO. 118
Figure 33 – Transport interface . 127
Figure 34 – Multicast message with no retransmission. 134
Figure 35 – Short multicast message with no BD packets and no loss. 135
Figure 36 – Exchange with lost packets .136
Figure 37 – Packet formats . 138
Figure 38 – Protocol machine states.139
Figure 39 – Session layer transfer .150
Figure 40 – Session_Header in Call_Message (of type Am_Result). 151
Figure 41 – Application_Messages_Interface. 152
Figure 42 – Encoding of AM_ADDRESS. . 156

– 4 – 61375-1 © IEC:2007(E)
Figure 43 – Reference device and structure of the document. 195
Figure 44 – MVB configuration . 196
Figure 45 – Transceiver interface .199
Figure 46 – Example of ESD segment . 201
Figure 47 – Example of terminator.202
Figure 48 – ESD backplane section (double-line). 204
Figure 49 – ESD connector arrangement . 205
Figure 50 – ESD terminator connector arrangement . 206
Figure 51 – Example of start of frame (ESD) . 207
Figure 52 – End of an ESD frame (both cases) . 208
Figure 53 – EMD medium. 209
Figure 54 – Shielding (single-line segment) . 211
Figure 55 – Single-line device attachment . 212
Figure 56 – Double-line device attachment to EMD. 213
Figure 57 – EMD connectors arrangement. 214
Figure 58 – EMD terminator strapping .
...