Overview
SIST EN 301 545-2 V1.5.1:2026 is a Slovenian adoption of the European standard for Digital Video Broadcasting (DVB), specifically addressing the Second Generation DVB Interactive Satellite System (DVB-RCS2). Published by SIST in alignment with ETSI EN 301 545-2 V1.5.1 (2026-04), this standard focuses on the lower layers and associated signalling required for efficient and robust two-way satellite networking. It provides a comprehensive specification for the lower layers in various DVB-RCS2 satellite network topologies, including transparent star networks, transparent mesh overlays, and regenerative re-multiplexing satellite architectures. The document is essential for designers, engineers, and operators aiming to implement advanced interactive satellite services using DVB-RCS2.
Key Topics
This DVB standard covers several critical areas related to the lower layers and signalling for interactive satellite communication:
- Lower Layer Specifications: Complete definition of lower layer protocols and interfaces for two-way satellite networks.
- Satellite Network Variants: Normative details for three primary network models:
- Transparent star network
- Transparent mesh overlay
- Regenerative re-multiplexing satellite network
- Signalling Systems: Guidelines on lower layer signalling essential for clear communication between network components.
- Terminal Profiles: Requirements specific to consumer terminals and other profiles as defined in ETSI TS 101 545-3.
- TRANSEC Components: Inclusion of necessary elements for implementing Transmission Security (TRANSEC) in satellite networks to meet advanced security needs.
- Forward and Return Links: Detailed coverage of both uplink (return) and downlink (forward) transmission mechanisms, including data encapsulation, addressing, and error correction mechanisms.
Applications
The scopes and requirements detailed in SIST EN 301 545-2 V1.5.1:2026 unlock a wide array of practical applications for the broadcast and communication sectors:
- Broadband Internet Access: Enabling reliable two-way broadband communication for remote locations using interactive satellite systems.
- Television and Radio Broadcasting: Supporting advanced interactive services and efficient content delivery for DVB-based DTH and broadcast operators.
- Enterprise & Government Networks: Secure and resilient connectivity for large enterprises or governmental bodies, especially where traditional infrastructure is unavailable.
- Mobile and Maritime Communications: Facilitating always-on communications for moving platforms, utilizing mesh and regenerative satellite architectures.
- Disaster Recovery & Emergency Communications: Providing robust communication links during infrastructure outages or in areas vulnerable to natural disasters through fast-deployable satellite networks.
Related Standards
To ensure interoperability and future-proof designs, compliance with related and supporting standards is vital:
- ETSI TS 101 545-3: Reference specification detailing network variants and terminal profiles for DVB-RCS2.
- ETSI EN 301 545-1: Covers higher layers and additional protocol requirements for DVB-RCS2.
- ETSI EN 302 307: Specifies DVB-S2 and S2X physical layer modulation and channel coding.
- DVB Standards Series: Broader DVB specifications offering complementary guidelines for digital broadcasting and interactive services.
- ISO/IEC 13818-1 (MPEG-2 Systems): For transport stream specification and interoperability.
Conclusion
Implementing SIST EN 301 545-2 V1.5.1:2026 strengthens satellite network design by defining clear specifications for lower layer protocols and signalling. This enables seamless, secure, and efficient deployment of interactive DVB satellite services across consumer, commercial, and mission-critical applications, while ensuring compliance and optimal performance within the international DVB and ETSI standards ecosystem.