Overview
ISO/IEC 14543-3-7:2007 specifies the physical and data link layer requirements for radio-frequency (RF) media used in Home Electronic System (HES) architecture - specifically for network-based control of HES Class 1 devices. It defines mandatory and optional characteristics for RF transmission (centered on 868.3 MHz), frame structure, medium access, retransmitters and media couplers to enable interoperable, decentralized home and building control systems.
Keywords: ISO/IEC 14543-3-7, HES, Home Electronic System, RF, radio frequency, physical layer, data link layer, 868.3 MHz, FSK, ERP, retransmitter, media coupler, interoperability
Key Topics
- Physical layer requirements
- Target center frequency 868.300 MHz (national variations possible)
- Modulation: FSK with typical deviation ~±50 kHz
- Chip rate: 32 768 cps with tolerance and jitter limits
- Transmit power (ERP) and duty cycle limits: minimum 0 dBm, maximum 25 mW (or national limit), duty cycle 1%
- Receiver sensitivity and performance requirements; link budget guidance (minimum −80 dB, typical −95 dB, recommended −100 dB)
- Data Link Layer (RF)
- RF-specific frame structures and bit/octet ordering
- Medium access timing and procedures
- Mechanisms for duplication prevention, RF repeat counters, and retransmission behavior
- Addressing: Extended Group Address, RF Domain Address, predefined addresses for transmit‑only devices, RF broadcast semantics
- Retransmitters and Media Couplers
- Layer‑2 behavior for RF retransmitters (history lists, filtering, repeat counters)
- Automatic translation principles between RF frames and other media (e.g., twisted pair), including address translation rules
- Conformance & Interoperability
- Devices must support the specified RF physical medium and the defined transmission capabilities; specific clauses apply for retransmitters and couplers
- Standards references & IP note
- Normative references include IEC 60870‑5‑1/2 and EN 300 220‑1 testing. The foreword notes a potential patent claim related to clause 6.6.2.
Applications
- Device manufacturers designing wireless HES Class 1 sensors, actuators, gateways and retransmitters
- System integrators implementing interoperable smart‑home and building automation networks
- Test labs and certification bodies validating RF performance, link budgets and protocol conformance
- Product designers ensuring compliance with regional RF regulations while meeting HES interoperability requirements
Related Standards
- ISO/IEC 14543 family (Parts 2-1, 3-1, 3-2, 3-3, 3-4, 3-5, 3-6)
- IEC 60870-5-1, IEC 60870-5-2 (transmission frame and link procedures)
- EN 300 220-1 (receiver tests and RF regulatory testing)
This standard is essential for achieving reliable, interoperable RF communication in HES Class 1 network-based control systems.
Open preview (PDF)Information technology — Home electronic system (HES) architecture — Part 3-7: Media and media dependent layers — Radio frequency for network based control of HES Class 1
