ISO 21806-7:2020 PDF

Name: ISO 21806-7:2020 — Road vehicles — Media Oriented Systems Transport (MOST) — Part 7: Data link layer conformance test plan
SKU: ISO 21806-7:2020
Price: 25 EUR
Availability: InStock

Road vehicles — Media Oriented Systems Transport (MOST) — Part 7: Data link layer conformance test plan

Название (английский):

ISO 21806-7:2020

Road vehicles — Media Oriented Systems Transport (MOST) — Part 7: Data link layer conformance test plan

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 23
Дата публикации:: 18 сентября 2020 г.
Издание:: ISO IS 21806 edition 1 version 1
ICS:: 43.040.15

Тип поставки:

Full version345 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:4 раб. дн. (перевод)

Цена:345 €

Описание (английский):

This document specifies the conformance test plan (CTP) for the data link layer for MOST, a synchronous time-division-multiplexing network, as specified in ISO 21806-6. This document specifies conformance test cases (CTCs) in the following categories: — network frames; — allocation channel; — protected system channel; — timestamp channel; — flow control; — cyclic redundancy check; — arbitration; — default packet channel. Interoperability testing is not in the scope of this document.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 21806-7:2020 - "Road vehicles - Media Oriented Systems Transport (MOST) - Part 7: Data link layer conformance test plan" specifies a structured conformance test plan (CTP) for the data link layer of MOST networks. MOST is a synchronous time-division-multiplexing (TDM) communication technology widely used in automotive multimedia and infotainment systems. This part of the ISO 21806 series defines the conformance test cases (CTCs) and the test set‑up required to verify that an implementation conforms to the data link layer requirements in ISO 21806-6. Interoperability testing is explicitly out of scope.

Key topics and technical requirements

Conformance test plan (CTP): Defines test architecture, roles and procedures for executing CTCs. Test set‑up uses an Upper Tester (UT) and a Lower Tester (LT) split into LT pre‑IUT and LT post‑IUT with a clear description of IUT (implementation under test) roles.

CTC categories: The document specifies CTCs covering:

Network frames (preamble, bit order, node counters)
Allocation channel (allocation words, SOAF, reporting, TimingMaster/TimingSlave behaviors)
Protected system channel (size/location, CRC reaction, node counters, system flags)
Timestamp channel
Flow control (target addressing, PACK byte behavior)
Cyclic redundancy check (CRC) (CRC handling and acknowledge)
Arbitration (participation rules, WAIT/Arb handling)
Default packet channel

Test set‑up and execution: Includes UT/LT roles, power monitoring (to detect node sleep states), and environmental considerations (avoid over‑temperature per manufacturer guidance).

Normative references: Integrates conformance testing methodology from ISO/IEC 9646‑1 and links to ISO 21806‑1 and ISO 21806‑6 for layer definitions and normative requirements.

Practical applications

Use ISO 21806-7:2020 to develop and validate test suites, test tools, and lab procedures that verify MOST data link layer conformance.

Integrate CTCs into supplier validation plans to ensure device compliance before vehicle integration.

Apply in certification and quality assurance workflows to reduce integration defects for infotainment, audio/video streaming, and packet-data components on MOST networks.

Related standards

ISO 21806-6 - MOST data link layer (normative reference)

ISO 21806-1 - MOST general information and definitions

ISO/IEC 9646-1 - OSI conformance testing methodology

Keywords: ISO 21806-7:2020, MOST, data link layer, conformance test plan, CTC, TDM network, automotive infotainment, CRC, flow control, arbitration.

ISO 21806-7:2020 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Технические детали

BS ISO 21806-6:2020

Road vehicles. Media Oriented Systems Transport (MOST). Data link layer.

ISO/IEC 9646-1:1991

Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part…

BS ISO 21806-14:2021

Road vehicles. Media Oriented Systems Transport (MOST). Lean application layer.