ISO 16845-2-2018 PDF

Full title and description

Road vehicles — Controller area network (CAN) conformance test plan — Part 2: High‑speed medium access unit — Conformance test plan. This ISO standard defines the conformance test plan and associated test cases for high‑speed CAN physical layer implementations (medium access units).

Abstract

This document specifies the conformance test plan for the CAN physical layer as standardized in ISO 11898‑2:2016. It defines both static tests (data to be supplied in datasheets) and dynamic tests (including test cases for partially implemented Classical CAN and CAN FD implementations as specified in ISO 11898‑1:2015).

General information

• Status: Published.
• Publication date: 17 July 2018 (Edition 2).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.15 (Automotive informatics / on‑board computer systems).
• Edition / version: Edition 2 (2018).
• Number of pages: 87 pages (ISO publication).

Scope

ISO 16845‑2:2018 defines a conformance test plan for the high‑speed medium access unit (MAU) portion of Controller Area Network (CAN) physical layer implementations. The scope covers static tests (information required in datasheets) and dynamic tests that exercise signalling and timing behavior; dynamic tests include cases relevant to partly implemented Classical CAN and CAN FD functionality as referenced in ISO 11898‑1:2015. The standard is specifically aligned with the high‑speed physical layer specified by ISO 11898‑2.

Key topics and requirements

• Conformance test plan structure for high‑speed CAN medium access units (MAUs), including test objectives and organization.
• Static tests specifying mandatory datasheet information and parameters to be declared by suppliers.
• Dynamic tests covering timing, signalling, error handling and bus arbitration behavior for Classical CAN and CAN FD modes (including partly implemented options).
• Reference to electrical and signalling requirements of ISO 11898‑2 (high‑speed physical attachment) that the MAU tests exercise.
• Test equipment, test environment descriptions and pass/fail criteria to validate conformance.
• Requirements and test considerations for low‑power modes and selective wake‑up where applicable (historic feature focus in earlier editions).

Typical use and users

Used by automotive OEMs, semiconductor and transceiver manufacturers, independent test laboratories and certification bodies to verify compliance of CAN high‑speed MAU implementations. Typical users include hardware test engineers, quality assurance teams, and systems integrators responsible for CAN physical‑layer interoperability and supplier datasheet validation.

Related standards

Key related standards include ISO 11898‑2 (High‑speed physical medium attachment — physical layer) and ISO 11898‑1 (Data link layer and physical signalling, Classical CAN and CAN FD). ISO 16845‑1 (Part 1: Data link layer and physical signalling) provides the complementary conformance test plan for the DLL/PCS layers. ISO 16845‑2:2018 supersedes the earlier ISO 16845‑2:2014 edition.

Keywords

CAN, Controller Area Network, conformance test, high‑speed MAU, physical layer, ISO 16845, ISO 11898, CAN FD, Classical CAN, test plan, datasheet, electrical signalling.

FAQ

Q: What is this standard?

A: ISO 16845‑2:2018 is the ISO conformance test plan for high‑speed CAN medium access units (MAUs). It defines the tests and requirements used to verify that a CAN physical‑layer implementation meets the relevant signalling and timing specifications.

Q: What does it cover?

A: It covers static and dynamic conformance tests for the CAN physical layer (high‑speed MAU). Static tests specify datasheet information; dynamic tests exercise timing, signalling and behaviour for Classical CAN and CAN FD related implementations, aligned with ISO 11898‑2:2016 and ISO 11898‑1:2015.

Q: Who typically uses it?

A: Automotive OEM test teams, semiconductor/transceiver vendors, independent test labs, and certification bodies use this standard to validate CAN physical‑layer conformance and to define supplier datasheet requirements.

Q: Is it current or superseded?

A: ISO 16845‑2:2018 is a published (Edition 2) standard from July 2018. It replaced ISO 16845‑2:2014 (withdrawn). Users should check ISO/TC 22/SC 31 publications for any later revisions or work items (AWIs) that may update parts of the 16845 series.

Q: Is it part of a series?

A: Yes — ISO 16845 is a multi‑part conformance test plan series. Part 1 covers the data link layer and physical signalling (ISO 16845‑1:2016) and Part 2 covers the high‑speed MAU (this document). There are work items for updated/replacement parts under ISO/TC 22/SC 31.

Q: What are the key keywords?

A: CAN, conformance test plan, high‑speed medium access unit, MAU, ISO 11898, CAN FD, Classical CAN, datasheet, physical layer.