ISO 16844-1:2022
(Main)Road vehicles - Tachograph systems - Part 1: Electromechanical components
Road vehicles - Tachograph systems - Part 1: Electromechanical components
This document specifies the mechanical dimensions of mandatory connectors and optional connectors used by the recording equipment for the data and the service interfaces. This includes, in particular, the connection to the CAN-based in-vehicle networks.
Véhicules routiers — Systèmes tachygraphes — Partie 1: Composants électromécaniques
General Information
- Status
- Published
- Publication Date
- 24-Feb-2022
- Technical Committee
- ISO/TC 22/SC 31 - Data communication
- Drafting Committee
- ISO/TC 22/SC 31/WG 4 - Network applications
- Current Stage
- 6060 - International Standard published
- Start Date
- 25-Feb-2022
- Due Date
- 15-Oct-2021
- Completion Date
- 25-Feb-2022
Relations
- Consolidated By
ISO 16923:2026 - Natural gas fuelling stations — Compressed natural gas (CNG) stations for fuelling vehicles - Effective Date
- 12-Nov-2022
- Effective Date
- 23-Apr-2020
Overview
ISO 16844-1:2022 is an international standard established by the International Organization for Standardization (ISO) that defines the mechanical dimensions and electromechanical components of tachograph connector systems in road vehicles. This standard focuses on specifying the mandatory and optional connectors used by recording equipment interfaces, including their connections to CAN (Controller Area Network)-based in-vehicle networks.
Tachographs are critical devices installed in road vehicles to record driver activities, vehicle speed, and movement parameters automatically or semi-automatically. This standard ensures uniformity and interoperability of connectors used in tachographs, facilitating reliable communication between electronic control units (ECUs) and the digital tachograph systems.
Key Topics
Mechanical Dimensions of Connectors
ISO 16844-1:2022 specifies precise mechanical dimensions for connectors involved in tachograph recording equipment. These connectors include modules A, B, C, and D, designed for data and service interfaces.Connector Parts and Contact Allocation
The document details contact assignments for the connectors, including power supply, CAN bus signals (CAN1 and CAN2 lines), ignition, speed signals, and manufacturer-specific functions.- Parts A and B cover primary power and data lines.
- Parts C and D are optional connectors serving extended functionalities.
Performance and Testing Requirements
The standard enforces robust performance testing, including:- Temperature and humidity cycling to withstand harsh environments.
- Combined temperature and vibration testing to endure vehicle conditions.
- Dielectric strength testing with a DC voltage of 500 V to ensure electrical safety.
- Certain mechanical shock and chemical fluid tests are excluded from the scope, distinguishing this standard from related ones.
CAN-Based In-Vehicle Network Integration
Connections to CAN bus networks are crucial for data communication in tachograph systems. ISO 16844-1 ensures compatibility with CAN-based in-vehicle interfaces, supporting efficient vehicle data exchange.
Applications
Vehicle Manufacturers and Suppliers
This standard helps automotive manufacturers and electronics suppliers design and implement tachograph equipment connectors that comply with global requirements, ensuring system compatibility and safety.Fleet and Transport Operators
Tachographs adhering to ISO 16844-1 facilitate accurate and standardized recording of driver and vehicle activity, which is essential for transport regulation compliance, driver safety monitoring, and operational efficiency.Regulatory Authorities
Standardized connectors allow authorities to access tachograph data reliably, supporting enforcement of road transport legislation such as driver working hours and vehicle usage.Aftermarket and Maintenance Services
Maintenance centers and workshops benefit from uniform connector specifications for diagnostics, data retrieval, and servicing of tachograph systems installed in commercial vehicles.
Related Standards
ISO 16844 Series
ISO 16844-1 is part of a comprehensive series addressing various aspects of tachograph systems:- ISO 16844-2 covers electrical requirements for data and service interfaces.
- ISO 16844-3 focuses on communication interfaces between sensors and recording equipment.
- ISO 16844-4 defines CAN-based data interface parameters.
- ISO 16844-6 specifies optional CAN-based service interfaces.
- ISO 16844-7 details data identifiers for optional service interfaces.
ISO 8092 Series
Provides foundational standards on road vehicle electrical connector dimensions, test methods, and performance, which ISO 16844-1 references and builds upon for tachograph connector specifics.EU Regulations on Tachographs
Related legal frameworks such as Regulation (EU) No 165/2014 govern tachograph usage and technical compliance within road transport operations, aligning with standards like ISO 16844-1.
By standardizing electromechanical connector components in tachograph systems, ISO 16844-1:2022 plays a pivotal role in enhancing interoperability, reliability, and safety of driver and vehicle data recording in road freight transport. Manufacturers, operators, and regulators rely on this standard to ensure conformity with international technical requirements and road transport regulations.
Frequently Asked Questions
ISO 16844-1:2022 is a standard published by the International Organization for Standardization (ISO). Its full title is "Road vehicles - Tachograph systems - Part 1: Electromechanical components". This standard covers: This document specifies the mechanical dimensions of mandatory connectors and optional connectors used by the recording equipment for the data and the service interfaces. This includes, in particular, the connection to the CAN-based in-vehicle networks.
This document specifies the mechanical dimensions of mandatory connectors and optional connectors used by the recording equipment for the data and the service interfaces. This includes, in particular, the connection to the CAN-based in-vehicle networks.
ISO 16844-1:2022 is classified under the following ICS (International Classification for Standards) categories: 43.040.10 - Electrical and electronic equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 16844-1:2022 has the following relationships with other standards: It is inter standard links to ISO 16923:2026, ISO 16844-1:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 16844-1:2022 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 16844-1
Third edition
2022-02
Road vehicles — Tachograph
systems —
Part 1:
Electromechanical components
Véhicules routiers — Systèmes tachygraphes —
Partie 1: Composants électromécaniques
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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Email: copyright@iso.org
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 1
5 Connector dimensions .1
6 Contact allocation . 3
6.1 Connector parts A and B . 3
6.2 Connector parts C and D . 4
7 Performance — Tests and requirements . 4
7.1 General . 4
7.2 Temperature/humidity cycling . 5
7.3 Combined temperature/vibration . 5
7.4 Dielectric strength . 5
7.5 Mechanical shock and chemical fluids . 5
Bibliography . 6
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 31,
Data communication.
This third edition cancels and replaces the second edition (ISO 16844-1:2013), which has been
technically revised.
The main changes are as follows:
— part 5 of this series (ISO 16844-5) has been removed due to its technical irrelevance,
— correction of the typos and mistakes in the text,
— adoption of the content according to the new version of the ISO guidelines,
— adoption of the content according to the new technical requirements,
— alignment of the content regarding to the referred standards.
A list of all parts in the ISO 16844 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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