ISO 17987-7-2016 PDF

Full title and description

Road vehicles — Local Interconnect Network (LIN) — Part 7: Electrical physical layer (EPL) conformance test specification. This document defines the conformance tests and test methods used to verify that LIN electrical physical layer implementations (bus drivers) conform to the electrical physical layer specification and achieve interoperable behaviour in vehicle networks.

Abstract

ISO 17987-7:2016 specifies a standardized conformance test suite for the LIN electrical physical layer (EPL). Its purpose is to provide repeatable test procedures and pass/fail criteria to determine whether a LIN bus driver implementation meets the requirements of the corresponding EPL specification (ISO 17987-4) and related test methodology (ISO 9646), enabling interoperability of LIN nodes from different suppliers.

General information

• Status: Withdrawn (superseded by a later edition).
• Publication date: December 2016.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.15 (On-board vehicle information systems).
• Edition / version: Edition 1 (2016).
• Number of pages: 172.

Key bibliographic and lifecycle details are drawn from the ISO registry for this document and its revised edition.

Scope

This part of ISO 17987 establishes the conformance test specification for the electrical physical layer (EPL) used by LIN networks in road vehicles. It defines test configurations, electrical and timing test cases, measurement and observation points, and pass/fail criteria intended to verify conformance to the EPL specification (ISO 17987-4). The scope includes tests necessary to check bus driver behaviour, signal levels, timing, and fault responses that affect interoperability in 12 V and 24 V vehicle systems.

Key topics and requirements

• Conformance test structure and methodology for the LIN electrical physical layer (EPL).
• Electrical test procedures for driver output levels, rise/fall times, and bus idle behaviour.
• Timing and signalling tests (baud/timing verification, wake-up behaviour, and timing margins).
• Fault and robustness tests (short-circuit, open-wire, and transient response checks).
• Reference to ISO 9646 test methodology and alignment with the EPL specification (ISO 17987-4).
• Test environment, instrumentation requirements, and pass/fail decision rules to ensure reproducible results across test labs.

These topics reflect the standard’s focus on electrical-level conformance and interoperability testing for LIN bus drivers.

Typical use and users

Engineers and technicians at automotive OEMs, tier-1 and tier-2 suppliers, independent test laboratories and certification bodies use this standard to validate and document conformance of LIN transceivers and node implementations. It is used during component development, supplier acceptance testing, pre-production verification, and by test houses offering conformance certification for LIN EPL implementations.

Related standards

ISO 17987-7:2016 is part of the ISO 17987 LIN series. Closely related documents include ISO 17987-1 (general information and use cases), ISO 17987-3 (protocol specification), ISO 17987-4 (EPL specification), ISO 17987-6 (protocol conformance tests) and other parts in the series. The LIN industry specifications and guidance from the LIN Consortium / LIN-CIA and complementary SAE J2602 documents are also commonly referenced when implementing or testing LIN systems.

Keywords

LIN, Local Interconnect Network, electrical physical layer, EPL, conformance test, LIN bus driver, ISO 17987, interoperability, automotive networks.

FAQ

Q: What is this standard?

A: ISO 17987-7:2016 is the part of the ISO 17987 series that defines the conformance test specification for the LIN electrical physical layer (EPL). It specifies how to test LIN bus drivers for electrical and timing compliance.

Q: What does it cover?

A: It covers test procedures, measurement points, expected electrical and timing behaviour, fault and robustness tests, test setup and instrumentation, and pass/fail criteria needed to demonstrate conformance to the LIN EPL specification (ISO 17987-4).

Q: Who typically uses it?

A: Automotive OEMs, electronics and component suppliers, independent test laboratories, and certification bodies use the standard for development verification, supplier qualification, and formal conformance testing of LIN node hardware.

Q: Is it current or superseded?

A: ISO 17987-7:2016 has been withdrawn and replaced by a later edition (ISO 17987-7:2025). Users who need the current conformance test specification should refer to the 2025 edition.

Q: Is it part of a series?

A: Yes — it is Part 7 of the ISO 17987 series (LIN). The series covers general information, transport and network services, protocol specification, EPL specification, API, protocol conformance and related parts that together define LIN behaviour and conformance testing.

Q: What are the key keywords?

A: LIN, Local Interconnect Network, EPL, conformance test, LIN bus driver, ISO 17987, interoperability, electrical physical layer.