IEC 62280:2014

Railway applications - Communication, signalling and processing systems - Safety related communication in transmission systems

IEC 62280:2014 gives the basic requirements needed to achieve safety related communication between safety related equipment connected to the transmission system. This International Standard is applicable to the safety requirement specification of the safety related equipment connected to the transmission system, in order to obtain the allocated safety integrity requirements.

Applications ferroviaires - Systèmes de signalisation, de télécommunication et de traitement - Communication de sécurité dans les systèmes de transmission

IEC 62280:2014 donne les exigences de base nécessaires pour réaliser une communication relative à la sécurité entre des équipements relatifs à la sécurité connectés au système de transmission. La présente norme internationale est applicable à la spécification des exigences de sécurité des équipements relatifs à la sécurité connectés au système de transmission, en vue d'obtenir les exigences d'intégrité de sécurité affectées.

General Information

• Status: Published
• Publication Date: 05-Feb-2014
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: MT 62280 - TC 9/MT 62280
• Current Stage: PPUB - Publication issued
• Start Date: 15-Feb-2014
• Completion Date: 06-Feb-2014

Relations

• Replaces: IEC 62280-1:2002 - Railway applications - Communication, signalling and processing systems - Part 1: Safety-related communication in closed transmission systems
• Effective Date: 05-Sep-2023
• Replaces: IEC 62280-2:2002 - Railway applications - Communication, signalling and processing systems - Part 2: Safety-related communication in open transmission systems
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62280 ®
Edition 1.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Communication, signalling and processing systems –
Safety related communication in transmission systems

Applications ferroviaires – Systèmes de signalisation, de télécommunication et
de traitement – Communication de sécurité dans les systèmes de transmission

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IEC 62280 ®
Edition 1.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Communication, signalling and processing systems –

Safety related communication in transmission systems

Applications ferroviaires – Systèmes de signalisation, de télécommunication et

de traitement – Communication de sécurité dans les systèmes de transmission

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 45.060 ISBN 978-2-8322-1383-4

– 2 – 62280 © IEC:2014
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions . 9
3.2 Abbreviations . 14
4 Reference architecture . 15
5 Threats to the transmission system . 18
6 Classification of transmission systems . 19
6.1 General . 19
6.2 General aspects of classification . 19
6.3 Criteria for the classification of transmission systems . 19
6.3.1 Criteria for Category 1 transmission systems . 19
6.3.2 Criteria for Category 2 transmission systems . 20
6.3.3 Criteria for Category 3 transmission systems . 20
6.4 Relationship between transmission systems and threats . 20
7 Requirements for defences . 20
7.1 General . 20
7.2 General requirements . 21
7.3 Specific defences . 22
7.3.1 General . 22
7.3.2 Sequence number . 23
7.3.3 Time stamp . 23
7.3.4 Time-out . 23
7.3.5 Source and destination identifiers . 24
7.3.6 Feedback message . 25
7.3.7 Identification procedure . 25
7.3.8 Safety code . 26
7.3.9 Cryptographic techniques . 27
7.4 Applicability of defences . 28
7.4.1 General . 28
7.4.2 Threats/defences matrix . 29
7.4.3 Choice and use of safety code and cryptographic techniques . 29
Annex A (informative) Threats on open transmission systems . 30
A.1 System view . 30
A.2 Derivation of the basic message errors . 31
A.3 Threats . 32
A.3.1 General . 32
A.3.2 Repetition . 33
A.3.3 Deletion . 33
A.3.4 Insertion . 33
A.3.5 Re-sequencing . 33
A.3.6 Corruption . 33
A.3.7 Delay . 33
A.3.8 Masquerade . 33

62280 © IEC:2014
– 3 –
A.4 Possible approach for building a safety case . 33
A.4.1 General . 33
A.4.2 Structured methods for hazardous events identification . 34
A.4.3 Relationship hazardous events – threats . 36
A.5 Summary . 37
Annex B (informative) Categories of transmission systems . 39
B.1 Categories of transmission systems . 39
B.2 Relationship between the category of transmission systems and threats . 40
Annex C (informative) Guideline for defences . 42
C.1 Applications of time stamps . 42
C.2 Choice and use of safety codes and cryptographic techniques . 43
C.3 Safety code . 48
C.3.1 General . 48
C.3.2 Main block codes . 48
C.3.3 Recommendations for the application of safety codes . 50
C.3.4 Cryptographic techniques . 50
C.4 Length of safety code . 51
C.5 Communication between safety related and non-safety related
applications . 54
Annex D (informative) Guidelines for use of the standard . 55
D.1 Procedure . 55
D.1.1 General . 55
D.1.2 Application . 55
D.1.3 Hazard analysis . 55
D.1.4 Risk reduction . 55
D.1.5 Allocation of SIL and quantitative targets . 55
D.
...