Overview
EN IEC 62820-1-1:2026 defines the general system requirements for building intercom systems and associated equipment used for building entry. Developed by CLC and based on foundational standards like the IEC 62820 series, this part addresses essential functional, performance, safety, and testing criteria for residential and commercial intercom systems. The standard is applicable to both simple door entry systems (DES) focused on user convenience, and more advanced building intercom systems (BIS) where robust security and communication are priorities.
Key Topics
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General System Requirements
The standard sets out the core requirements for the composition, basic and optional functions, and performance of building intercom systems. This includes two-way speech, call alerts, unlocking mechanisms, and optional video functionality.
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System Components
Building intercom systems may include:
- Visitor Call Units (VCU)
- User Receiver Units (URU)
- Security Management Units (SMU)
- Power supplies and auxiliary devices
- Interface units for integration with other security systems
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Functional Requirements
- Addressing and call functions between entry and user units
- 2-way audio communication (simultaneous or non-simultaneous)
- Electronic or electric unlocking of entrances
- Operational indicators, such as audiovisual prompts for visitors
- Video support (optional), including image display and storage
- Added features for grade 2 systems, like anti-listen-in for privacy and nighttime visibility
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Performance Requirements
- Audio characteristics: acoustic pressure levels, loudness, sensitivity, distortion, channel S/N ratio, and noise
- Video characteristics: image resolution, grey scale, focus, color reproduction, and adaptability to various lighting conditions
- Mechanical and environmental durability, protection against vandalism, and marking requirements
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Grades of Intercom Systems
- Grade 1: Basic requirements for systems not intended for high-security applications
- Grade 2: Enhanced requirements for systems supporting security applications (e.g., anti-eavesdropping, tamper alerts)
Applications
EN IEC 62820-1-1:2026 supports a wide range of practical uses in both residential and commercial buildings, including:
- Access control at building entrances, apartments, offices, and restricted areas
- Visitor management by allowing occupants to communicate with, verify, and grant access to visitors
- Integration with security management, where intercom systems connect with alarm systems, CCTV, and other electronic security solutions
- Improved safety and convenience for tenants, facility managers, and security staff
- Support for remote and hands-free operation, enhancing accessibility and reducing the need for physical keys
Systems compliant with this standard are suited for new building projects and modernization of existing installations, improving both security and user convenience.
Related Standards
For comprehensive deployment and compatibility, EN IEC 62820-1-1:2026 should be considered alongside other international standards, including:
- IEC 62820 Series:
- IEC 62820-1-2: System requirements for intercom systems using Internet Protocol (IP)
- IEC 62820-2: Requirements for advanced security intercom systems
- IEC 62820-3-1 / 3-2: Application guidelines for general and advanced security systems
- IEC 60065, IEC 60950-1, IEC 62368-1: Safety requirements for audio/video and information technology equipment
- IEC 60529 and IEC 62262: Protection against enclosure ingress and mechanical impacts
- IEC 61000-6 Series: Electromagnetic compatibility standards
- IEC 62599: Alarm systems environmental and EMC testing
Adherence to EN IEC 62820-1-1:2026 ensures building intercom systems meet essential quality, safety, and performance benchmarks, promoting interoperability and reliability in modern building security and communication infrastructures.