ISO 21111-3:2020 PDF

Road vehicles — In-vehicle Ethernet — Part 3: Optical 1-Gbit/s physical entity requirements and conformance test plan

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Title (English):

ISO 21111-3:2020

Road vehicles — In-vehicle Ethernet — Part 3: Optical 1-Gbit/s physical entity requirements and conformance test plan

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 186
Publication date:: June 29, 2020
Edition:: ISO IS 21111 edition 1 version 1
ICS:: 43.040.10

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Description (English):

This document provides supplemental specifications to a physical layer capable of transmitting 1 Gbit/s over plastic optical fibre compliant with ISO/IEC/IEEE 8802-3:2017/Amd 9:2018, with specific application to communications inside road vehicles. Additionally, there is a test plan specified for conformance testing. The test plan includes test cases to assure compliance of an IUT with the functionality specified in this document. ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 is considered indispensable for the application of this document. The supplemental specifications include wake-up and synchronised link sleep functionality. The specification includes the sublayers, service interfaces, and state diagrams that support the functionality. The supplemental specifications are collected in protocol implementation conformance statement (PICS). The requirements specified in ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 and in this document constitute the complete PICS that specifies the GEPOF physical entity functionality. The optical component requirements and test methods for optical 1-Gbit/s transmission of in-vehicle Ethernet are not within the scope of this document.

Technical details

Technical committee: ISO/TC 22/SC 31 - Data communication
SKU: ISO 21111-3:2020

Abstract

Overview

ISO 21111-3:2020 specifies supplemental physical-layer requirements and a conformance test plan for optical 1‑Gbit/s in-vehicle Ethernet over plastic optical fibre (GEPOF). It is intended specifically for communications inside road vehicles and supplements ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 (considered indispensable). The document defines wake-up and synchronised link sleep functionality, sublayers, service interfaces, state diagrams and a Protocol Implementation Conformance Statement (PICS) proforma. Note: optical component requirements and optical test methods for 1‑Gbit/s transmission are outside the scope.

Key Topics and Requirements

Physical entity (PHY) supplemental specifications for 1 Gbit/s transmission over plastic optical fibre (GEPOF).
Power management features: wake-up and synchronised link sleep behaviors to support vehicle low-power operation.
Sublayers and service interfaces: PHY service, neighbour PHY, conciliation, FFME and WUSME interfaces are defined with signals and events.
State diagrams and variables to specify state transitions (power states, link monitor, TX/RX control).
Protocol Implementation Conformance Statement (PICS): complete PICS combining ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 and this part to describe GEPOF physical entity functionality.
Conformance test plan: structured test architecture including:
- Block 1: test modes and loopback tests (e.g., loopback control, GMII, PMD).
- Block 2: PCS, PMA, PMD and MDI mandatory functionality tests (alignment, payload, power scaling, state-diagram validation).
- Block 3: EEE, OAM and wake-up/synchronised link sleep tests.
Test setups and cases: multiple test setups (TS_BASE, TS_EXTEND, TS_SIGPOW, etc.) and detailed test cases to validate compliance.

Practical Applications and Users

Who uses ISO 21111-3:

Automotive OEMs and system architects designing in-vehicle Ethernet topologies over plastic optical fibre.
PHY and transceiver designers implementing GEPOF physical entities.
Tier‑1 suppliers integrating optical cabling and network devices.
Test houses and certification labs performing conformance testing and PICS validation.
Software/firmware engineers implementing power-management features (wake-up/sync sleep) and link-state handling.

Why it matters:

Ensures interoperability and predictable behavior of in-vehicle optical Ethernet components.
Provides a testable conformance path to validate PHY functionality, link management and power-saving features critical for vehicle networks.
Supports safety- and power-sensitive automotive applications that require robust, low-latency 1‑Gbit/s links.

Related Standards

ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 (indispensable normative reference)
ISO 21111 series (other parts of the in-vehicle Ethernet family)
IEEE 802.3 (Ethernet physical-layer framework)

Keywords: in-vehicle Ethernet, GEPOF, optical 1-Gbit/s, plastic optical fibre, conformance test plan, wake-up, synchronised link sleep, PHY, PICS.

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key Topics and Requirements

Physical entity (PHY) supplemental specifications for 1 Gbit/s transmission over plastic optical fibre (GEPOF).
Power management features: wake-up and synchronised link sleep behaviors to support vehicle low-power operation.
Sublayers and service interfaces: PHY service, neighbour PHY, conciliation, FFME and WUSME interfaces are defined with signals and events.
State diagrams and variables to specify state transitions (power states, link monitor, TX/RX control).
Protocol Implementation Conformance Statement (PICS): complete PICS combining ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 and this part to describe GEPOF physical entity functionality.
Conformance test plan: structured test architecture including:
- Block 1: test modes and loopback tests (e.g., loopback control, GMII, PMD).
- Block 2: PCS, PMA, PMD and MDI mandatory functionality tests (alignment, payload, power scaling, state-diagram validation).
- Block 3: EEE, OAM and wake-up/synchronised link sleep tests.
Test setups and cases: multiple test setups (TS_BASE, TS_EXTEND, TS_SIGPOW, etc.) and detailed test cases to validate compliance.

Practical Applications and Users

Who uses ISO 21111-3:

Automotive OEMs and system architects designing in-vehicle Ethernet topologies over plastic optical fibre.
PHY and transceiver designers implementing GEPOF physical entities.
Tier‑1 suppliers integrating optical cabling and network devices.
Test houses and certification labs performing conformance testing and PICS validation.
Software/firmware engineers implementing power-management features (wake-up/sync sleep) and link-state handling.

Why it matters:

Ensures interoperability and predictable behavior of in-vehicle optical Ethernet components.
Provides a testable conformance path to validate PHY functionality, link management and power-saving features critical for vehicle networks.
Supports safety- and power-sensitive automotive applications that require robust, low-latency 1‑Gbit/s links.

Related Standards

ISO/IEC/IEEE 8802-3:2017/Amd 9:2018 (indispensable normative reference)
ISO 21111 series (other parts of the in-vehicle Ethernet family)
IEEE 802.3 (Ethernet physical-layer framework)

Keywords: in-vehicle Ethernet, GEPOF, optical 1-Gbit/s, plastic optical fibre, conformance test plan, wake-up, synchronised link sleep, PHY, PICS.

ISO 21111-3:2020 PDF

Technical details

Abstract

Overview

Key Topics and Requirements

Practical Applications and Users

Related Standards

Related standards

Abstract

Overview

Key Topics and Requirements

Practical Applications and Users

Related Standards

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