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How important are TSN quality assurance tests?
Correct implementation of the Physical Layer is essential to reliable data transmission in accordance with predefined compliance requirements. Once electrical and mechanical specifications of the Physical Media Attachment (PMA) sublayer are met, attention can be shifted to the Data Link Layer (Layer 2), where TSN functionality resides to enable the following capabilities:
- Precise time synchronization
- Enhanced reliability
- Bandwidth allocation and prioritization
Because TSN enables machinery to make safety-critical decisions based on real-time data, its accuracy is pivotal across applications such as autonomous driving, robotic surgery, as well as high-precision communication in production and manufacturing environments.
Who develops the standards for TSN?
TSN is built on a set of standards developed by different industry groups, each addressing critical aspects of the technology:
- IEEE 802.1: Defines the core TSN protocols at the Data Link Layer (Layer 2), including time synchronization, traffic scheduling, frame pre-emption, and traffic shaping.
- AVNU Alliance: Develops certification programs to ensure interoperability, particularly in the Pro AV, Automotive, and industrial sectors.
- OPEN Alliance: Promotes TSN conformance in Automotive Ethernet, supporting in-vehicle network reliability and consistency.