What is ISO 21806‑8 about?
ISO 21806‑8 is part eight of the multi-series standard that specifies the 150-Mbit/s optical physical layer for MOST (MOST150 oPHY), a synchronous time-division-multiplexing network.
ISO 21806‑8 specifies the applicable constraints and defines interfaces and parameters, suitable for the development of products based on MOST150 oPHY. Such products include fibre optical links and connectors, fibre optic receivers, fibre optic transmitters, electrical to optical converters, and optical to electrical converters.
ISO 21806‑8 also establishes basic measurement techniques and actual parameter values for MOST150 oPHY.
Who is ISO 21806‑8 for?
ISO 21806‑8 on Media Oriented Systems Transport (MOST) 150-Mbit/s optical physical layer is useful for:
- Vehicle manufacturers
- Car infotainment manufacturers and developers
- Vehicle data services providers
- Developers of multimedia and infotainment systems
- Fiber optic cable manufacturers
Why should you use ISO 21806‑8?
MOST enable the transport of high-quality service (QoS) audio and video together with packet data and real-time control to support modern automotive multimedia and similar applications. MOST is a function-oriented communication technology to network a variety of multimedia devices comprising one or more MOST nodes.
ISO 21806 series helps you implement the MOST communication technology into multimedia devices and to provide conformance test plans for implementing related test tools and test procedures.
ISO 21806‑8 provides the physical layer (PHY) service interface that specifies the abstract interface to the OSI data link layer (DLL).
A physical connection of two MOST devices is called a link. Measurements are taken at specific locations along a link. These locations are called SPs. The location of the SPs is shown in ISO 21806‑8.
ISO 21806‑8 gives link quality that describes the minimum performance of MOST components along a single link.
ISO 21806‑8 describes a technique of encoding digital data called DCA coding, which shall be used in MOST150 oPHY.