IEC 63455:2025 pdf download,Multimedia systems and equipment – Multimedia signal transmission – Dependable line code with error correction.
IEC 63455:2025 outlines the 4b/10b line code, which incorporates error correction to ensure reliable multimedia data transmission, particularly for real-time communications in challenging environments, such as those encountered in IoT devices, wearables, sensor networks, robotics, and spacecraft. This standard aligns with the functionalities defined in layers 1 and 2 of the OSI reference model (ISO/IEC 7498).
The primary objective of this document is to enhance the implementation of the 4b/10b line code within intricate systems by detailing the associated protocol. It specifies the 4b/10b line code protocol for interconnections in complex systems, particularly in distributed real-time applications like embedded systems, control systems, IoT devices, wearables, sensor networks, entertainment systems, robotic systems, and spacecraft.
The 4b/10b line code is designed to provide embedded clocking, DC balance, error detection, and error correction simultaneously, addressing limitations found in traditional single line codes. This capability enables the 4b/10b line code to facilitate highly reliable digital communications. A key advantage of the 4b/10b line code is its inherent error correction functionality, which eliminates the need for additional error correction mechanisms in higher layers, allowing for effective communication even in noisy conditions using solely the 4b/10b line code.