Overview
IEC 60839-5-1:2014 - "Alarm and electronic security systems - Part 5-1: Alarm transmission systems - General requirements" - defines general requirements for the performance, reliability, resilience and security of alarm transmission systems (ATS). It covers ATS that transmit alarm messages between supervised premises and annunciation equipment at an alarm receiving centre (ARC) and applies to all alarm message types (fire, intrusion, access control, social alarm, etc.). This second edition (2014) is a technical revision of the 1991 edition and aligns with modern network and cybersecurity constraints; it is based on EN 50136-1:2012.
Key topics and technical requirements
- Scope and applicability: Requirements apply when ATS functions are integrated into alarm systems or annunciation equipment and when ATS uses any transmission network.
- ATS configuration and categories: Classification of ATS types and custom category options to match risk and service needs.
- Transmission link requirements: Rules for links shared with other applications, network equipment, capacity planning and Denial-of-Service considerations.
- Performance metrics: Transmission time, reporting time and maximum reporting delays; monitoring of interconnections and acknowledgement mechanisms.
- Availability and resilience: Redundancy/duplication, fault duration handling, ATS and ATSN (alarm transmission system network) availability recording and calculation.
- Security requirements:
- Information security: Confidentiality, integrity and availability measures for alarm messages.
- Substitution security: Protection against spoofing or substitution of alarm sources.
- Denial-of-service mitigation and secure message acknowledgement.
- Verification and documentation: Procedures for performance verification, verification intervals, records, inspection, and required system documentation.
- Operational alarms: ATS-generated alarms and how these are reported and handled.
Practical applications and who uses it
IEC 60839-5-1:2014 is essential for organizations that design, deploy, operate or certify alarm transmission infrastructures:
- Alarm transmission service providers and telecom/ISP operators
- Alarm receiving centre (ARC) operators and annunciation equipment vendors
- Alarm system manufacturers and integrators
- Fire departments, emergency services and building security teams
- Insurance companies and compliance auditors
- End users and facility managers specifying ATS performance, resilience and security
This standard helps stakeholders ensure alarm messages are transmitted reliably and securely, that transmission delays and outages are managed, and that systems meet verifiable availability and security criteria.
Related standards
- IEC 60839-5-2: Requirements for supervised premises transceiver (SPT)
- IEC 60839-5-3: Requirements for receiving centre transceiver (RCT)
- EN 50136-1:2012 (basis for this edition)
Keywords: IEC 60839-5-1:2014, alarm transmission systems, ATS, alarm receiving centre, transmission time, availability, redundancy, information security, supervised premises transceiver, receiving centre transceiver.
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