What is ISO 21806‑9 about?
ISO 21806‑9 is part nine of the multi-series standard that specifies the conformance test plan for the 150-Mbit/s optical physical layer for MOST (MOST150 oPHY), a synchronous time-division-multiplexing network.
ISO 21806‑9 specifies the basic conformance test measurement methods, relevant for verifying compatibility of networks, nodes, and MOST components with the requirements specified in ISO 21806-8.
Who is ISO 21806‑9 for?
ISO 21806‑9 on Media Oriented Systems Transport (MOST) 150-Mbit/s optical physical layer conformance test plan 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 21806‑9?
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 21806‑9 specifies the conformance procedures for the parameters of ISO 21806-8 that are relevant for 150-Mbit/s optical physical layer conformance test plan. For each parameter, it indicates how conformance can be achieved, depending on the type: MOST component (EOC/OEC), MOST module, or MOST device.
ISO 21806‑9 specifies a procedure for detecting AJ in a data stream. Oscilloscopes, appropriate for the jitter measurements, are digital sampling oscilloscopes (DSO) with deep sampling memory and special software modules for serial data analysis.
ISO 21806-9 provides you with test setups for all conformance test cases that will help you carry out tests effectively.
In serial digital communication systems, electromagnetic and/or optical crosstalk can cause a reduction in receiver sensitivity. ISO 21806-9 outlines a way to determine and quantify the crosstalk induced penalty with measurement equipment used for MOST optical physical layer measurements.