Road vehicles — Tachograph systems — Part 2: Recording unit communication interface

This document specifies the electrical interfaces of the data and the service interfaces. The electrical interfaces to the CAN-based in-vehicle networks are not in the scope of this document.

Véhicules routiers — Systèmes tachygraphes — Partie 2: Interface de communication de l'unité d'enregistrement

General Information

Status
Published
Publication Date
10-Apr-2022
Current Stage
6060 - International Standard published
Start Date
11-Apr-2022
Due Date
15-Oct-2021
Completion Date
11-Apr-2022
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ISO 16844-2:2022 - Road vehicles — Tachograph systems — Part 2: Recording unit communication interface Released:4/11/2022
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INTERNATIONAL ISO
STANDARD 16844-2
Third edition
2022-04
Road vehicles — Tachograph
systems —
Part 2:
Recording unit communication
interface
Véhicules routiers — Systèmes tachygraphes —
Partie 2: Interface de communication de l'unité d'enregistrement
Reference number
ISO 16844-2:2022(E)
© ISO 2022

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ISO 16844-2:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© 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.
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Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
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  © ISO 2022 – All rights reserved

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ISO 16844-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.1
5 Requirements . 2
5.1 Connector . 2
5.2 Electrical connection . 2
5.2.1 Connector — Part A . 2
5.2.2 Connector — Part B . 2
Bibliography . 5
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© ISO 2022 – All rights reserved

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ISO 16844-2:2022(E)
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 16844-2:2011), 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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  © ISO 2022 – All rights reserved

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ISO 16844-2:2022(E)
Introduction
This document supports and facilitates the communication between electronic control units (ECUs)
and a digital tachograph.
The digital tachograph concept is based upon a recording equipment storing data, related to the
activities of the various drivers driving the vehicle, on which it is installed.
During the normal operational status of the recording equipment, data stored in its memory are
accessible t
...

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