Overview
IEC 60864-2:1997 is an International Electrotechnical Commission (IEC) standard dedicated to the standardization of interconnections between broadcasting transmitters (or transmitter systems) and supervisory equipment, specifically focusing on interface standards for systems utilizing data bus type interconnections. This part of IEC 60864 serves to ensure seamless compatibility and interoperability between diverse makes and models of transmitters and supervisory units deployed for the remote monitoring and control of broadcast transmission infrastructure.
The standard provides guidelines applicable to a wide range of broadcasting transmitters used in both radio and television. However, it may not be suitable for low-power equipment or simple transmitter systems comprising only a few controlled devices, nor for certain transmission scenarios with specialized requirements. Facilities or interconnections unrelated directly to the transmitter, such as intrusion detection or mast lighting, are outside its scope.
Key Topics
- Interconnection Standards: Focus on data bus type interconnections facilitating communication between transmitters and supervisory systems.
- Compatibility: Details requirements for achieving hardware and protocol compatibility across different manufacturers and transmitter types.
- General System Requirements: Outlines common system needs for proper, reliable function in unattended transmitter sites.
- Command and Indication Sets: Specifies standardized sets of controls and status indications for various transmitter system configurations:
- Single transmitters
- Passive/active reserve systems
- Dual drive systems
- (N + 1) and multiplex reserve systems
- Interface Definitions: Provides unambiguous definitions of boundary points for data exchange between broadcasting equipment and remote monitoring units.
- Terminology and Symbols: Relies on established IEC terminologies (ref. IEC 60050) and symbols for clarity and global consistency.
Applications
IEC 60864-2:1997 is invaluable in modern broadcast operations where supervisory equipment is used to remotely supervise, control, and automate transmitter sites. Its frameworks and definitions support several use cases:
- Unattended Transmitter Sites: Allows for remote diagnostics, command execution, and real-time status updates without requiring on-site staff, reducing operational costs and enhancing response times to faults.
- Integration of Equipment from Multiple Vendors: Enables interoperability in environments where transmitters and supervisory systems may originate from different manufacturers, easing upgrades and system expansions.
- Improved System Reliability: Standardized command and status interfaces help ensure reliable switching, failover, and monitoring in complex transmitter networks, including those using reserve (redundant) transmitters.
- Migration to Digital and Microprocessor-Based Controls: Supports broadcast facilities transitioning from traditional wired setups to advanced data bus interconnections, fostering future-readiness and scalability.
Related Standards
To further encourage harmonization and integration, IEC 60864-2 references several key international standards relevant to broadcasting and data communication, including:
- IEC 60559: Binary floating-point arithmetic for microprocessor systems, supporting high-reliability digital calculations.
- IEC 60625-2: Programmable measuring instruments - interface system, crucial for consistent communication protocols.
- ISO/IEC 8482: Information technology - twisted pair multipoint interconnections, widely used for physical network connectivity.
- IEEE 1118: Microcontroller-system serial control bus, providing additional guidance on serial bus architectures in microcontroller-based systems.
Additional References
- IEC 60027, IEC 60417, IEC 60617, IEC 60878: For standardized graphical and letter symbols, ensuring consistent documentation and interfaces.
- IEC 60864-1: The counterpart standard focusing on systems with dedicated (wired) interconnections.
Summary
By adhering to IEC 60864-2:1997, broadcast system designers, integrators, and operators can achieve reliable, scalable, and interoperable transmitter control and monitoring, leveraging data bus interconnections for enhanced efficiency and operational resilience in both radio and TV broadcasting infrastructures.