IEC 62280-2014 PDF

Full title and description

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 a transmission system and is applicable to the safety requirement specification of such equipment to obtain the allocated safety integrity requirements.

Abstract

This international standard defines a reference architecture, threat analysis, classification criteria for transmission systems (Categories 1–3) and the defensive measures required so that safety‑related messages exchanged over transmission systems meet allocated safety integrity requirements. It consolidates requirements previously split between closed and open transmission system parts into a single document.

General information

• Status: Published.
• Publication date: 05 February 2014.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 01 (Generalities) and 45.060.01 (Railway rolling stock in general); Technical Committee: TC 9 (Electrical equipment and systems for railways).
• Edition / version: Edition 1.0 (2014-02).
• Number of pages: 132 pages.

Scope

IEC 62280:2014 applies to the specification of safety requirements for equipment connected to transmission systems used in railway signalling and communication, in order to reach the allocated safety integrity. The standard addresses both closed and open transmission environments by defining a reference architecture, identifying threats to transmission, classifying transmission system types by risk (Category 1–3) and prescribing defensive measures and tests to ensure safe communication. It is intended to support the safety‑requirement specification element of the safety case for signalling systems.

Key topics and requirements

• Reference architecture for safety‑related communication between safety and non‑safety equipment.
• Threat analysis for transmission systems (intentional and accidental faults, interference, loss of service, message corruption, replay, delay, etc.).
• Classification criteria for transmission systems into Category 1, 2 and 3 according to threat exposure and safety impact.
• Requirements for defensive measures including sequence numbers, time stamps, time‑outs, source and destination identifiers, feedback/acknowledgement messages and checks to detect tampering or corruption.
• Allocation of safety integrity requirements and guidance for the safety‑requirement specification of connected equipment.
• Verification and validation guidance for communication defences and evidence expected in the safety case (testing, monitoring and evidence of conformity with safety allocation).
• Guidance bridging closed and open transmission system considerations (consolidation of earlier part‑based requirements).

Typical use and users

Used by railway signalling and communication system designers, equipment manufacturers, system integrators, safety engineers, certification bodies and project safety managers to define, allocate and verify safety‑related communication requirements in rolling stock and trackside systems. It is referenced during hazard analysis, safety‑requirements specification, design of communication protocols and during safety assessment and certification activities.

Related standards

Key related standards include IEC 62278 (RAMS and lifecycle for railway systems), IEC 62279 (software requirements for railway signalling), IEC 62425 (safety‑related electronic systems for signalling) and the European standard EN 50159 (safety‑related communication in transmission systems), as well as the earlier separate parts IEC 62280‑1:2002 and IEC 62280‑2:2002 which IEC 62280:2014 replaces.

Keywords

railway, signalling, transmission system, safety‑related communication, safety integrity, defences, sequence number, time stamp, timeout, source identifier, feedback, IEC TC9, Category 1, Category 2, Category 3

FAQ

Q: What is this standard?

A: IEC 62280:2014 is an IEC international standard that establishes requirements and guidance for achieving safety‑related communication in railway transmission systems.

Q: What does it cover?

A: It covers reference architecture, threat analysis, classification of transmission systems (Categories 1–3), required defensive measures (e.g., sequence numbers, time stamps, time‑outs, identifiers, feedback) and guidance for allocating and verifying safety integrity for equipment connected to transmission systems.

Q: Who typically uses it?

A: Railway signalling engineers, system designers and integrators, equipment manufacturers, safety managers, independent assessors and certification bodies use it to define and verify communication‑related safety requirements.

Q: Is it current or superseded?

A: IEC 62280:2014 was published on 5 February 2014 and is the consolidated document replacing the earlier IEC 62280‑1:2002 and IEC 62280‑2:2002 (the parts for closed and open transmission systems). The 2014 edition remains the published edition; the earlier part‑based documents are listed as replaced.

Q: Is it part of a series?

A: Yes — it is part of the IEC railway application standards family (work of IEC TC 9) and is used alongside related lifecycle and safety standards such as IEC 62278, IEC 62279 and IEC 62425 and by national/European adoptions such as EN 50159.

Q: What are the key keywords?

A: railway, safety‑related communication, transmission systems, signalling, safety integrity, threat analysis, sequence number, time stamp, timeout, source/destination identifier.