IEC 62386-101:2022

Digital addressable lighting interface - Part 101: General requirements - System components

IEC 62386-101:2022 is applicable to system components in a bus system for control by digital signals of electronic lighting equipment. The control methods, algorithms and data exchange methods of application controllers used for lighting control are not within the scope of the IEC 62386 series. EMC requirements are not within the scope of the IEC 62386 series. This third edition cancels and replaces the second edition published in 2014 and Amendment 1:2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  
the scope has been updated;
safety and earthing have been updated and extended;
references have been updated;
the use of bus-power and external-power has been clarified;
polarity sensitivity for bus units including a bus power supply has been updated;
frame sizes of 32 bits are no longer reserved.

Interface d'éclairage adressable numérique - Partie 101: Exigences générales - Composants de système

L'IEC 62386-101:2022 s'applique aux composants de système dans un système à bus pour la commande par des signaux numériques des appareils d'éclairage électroniques. Les méthodes et algorithmes de commande et les méthodes d'échange de données des contrôleurs d'application utilisés pour la commande d'éclairage ne relèvent pas du domaine d'application de la série IEC 62386. Les exigences relatives à la compatibilité électromagnétique (CEM) ne relèvent pas du domaine d'application de la série IEC 62386. Cette troisième édition annule et remplace la seconde édition parue en 2014 et l'Amendement 1:2018. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:  
le domaine d'application a été mis à jour;
les paragraphes relatifs à la sécurité et à la mise à la terre ont été mis à jour et élargis;
les références ont été mises à jour;
l'utilisation de l'alimentation du bus et de l'alimentation externe a été clarifiée;
la sensibilité à la polarité des bus, y compris l'alimentation électrique du bus, a été mise à jour;
les tailles de trames de 32 bits ne sont plus réservées.

General Information

• Status: Published
• Publication Date: 15-Nov-2022
• ICS: 29.140.50 - Lighting installation systems
• ICS: 29.140.99 - Other standards related to lamps
• Technical Committee: TC 34 - Lighting
• Drafting Committee: WG 11 - TC 34/WG 11
• Current Stage: PPUB - Publication issued
• Start Date: 02-Dec-2022
• Completion Date: 16-Nov-2022

Relations

• Revises: IEC 62386-101:2014 - Digital addressable lighting interface - Part 101: General requirements - System components
• Effective Date: 05-Sep-2023
• Revises: IEC 62386-101:2014/AMD1:2018 - Amendment 1 - Digital addressable lighting interface - Part 101: General requirements - System components
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62386-101 ®
Edition 3.0 2022-11
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Digital addressable lighting interface –
Part 101: General requirements – System components
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 62386-101 ®
Edition 3.0 2022-11
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Digital addressable lighting interface –
Part 101: General requirements – System components
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140.50; 29.140.99 ISBN 978-2-8322-6101-9

– 2 – IEC 62386-101:2022 CMV © IEC 2022
CONTENTS
FOREWORD .7
INTRODUCTION . 10
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
4 General . 18
4.1 Purpose . 18
4.2 Version number . 18
4.3 System structure and architecture . 18
4.4 System information flow . 19
4.5 Command types. 19
4.6 Bus units . 20
4.6.1 Transmitters and receivers in bus units . 20
4.6.2 Control gear . 20
4.6.3 Input device . 20
4.6.4 Single-master application controller . 21
4.6.5 Multi-master application controller . 21
4.6.6 Sharing an interface . 21
4.6.7 Power for operation . 22
4.7 Bus power supply and load calculations . 23
4.7.1 Current demand coverage . 23
4.7.2 Maximum signal current compliance . 23
4.7.3 Simplified system calculation . 23
4.8 Wiring . 23
4.8.1 Wiring structure . 23
4.8.2 Wiring specification . 23
4.9 Electrical safety requirements . 24
4.9.1 General . 24
4.9.2 Insulation . 24
4.9.3 Electric strength . 24
4.9.4 Limitation of the touch current from the device to the bus . 24
4.10 Earthing of the bus . 25
4.11 Power interruptions at bus units . 25
4.11.1 Different levels of power interruptions . 25
4.11.2 Short power interruptions of external power supply . 25
4.11.3 External power cycle . 26
4.11.4 Short interruptions of bus power supply . 26
4.11.5 Bus power down . 26
4.11.6 System start-up timing . 26
5 Electrical specification . 28
5.1 General . 28
5.2 Marking of the interface . 28
5.3 Capacitors between the interface and earth . 28
5.4 Signal voltage rating . 28
5.5 Signal current rating . 29

5.6 Marking of bus powered bus unit . 29
5.7 Signal rise time and fall time . 30
6 Bus power supply . 31
6.1 General . 31
6.2 Marking of the bus power supply terminals . 31
6.3 Capacitors between the interface and earth . 31
6.4 Voltage rating . 31
6.5 Current rating . 32
6.5.1 General current rating . 32
6.5.2 Single bus power supply current rating . 32
6.5.3 Integrated bus power supply current rating . 32
6.5.4 Dynamic behaviour of the bus power supply . 32
6.6 Bus power supply timing requirements . 34
6.6.1 Short power supply interruptions . 34
6.6.2 Short circuit behaviour . 34
7 Transmission protocol structure . 35
7.1 General . 35
7.2 Bit encoding . 35
7.2.1 Start bit and data bit encoding . 35
7.2.2 Stop condition encoding. 35
7.3 Frame description . 35
7.4 Frame types . 36
7.4.1 16-bit forward frame . 36
7.4.2 24-bit forward frame . 36
7.4.3 32-bit forward frame . 36
7.4.4 Reserved forward frame. 36
7.4.5 Backward frame . 36
7.4.6 Proprietary forward frames. 36
8 Timing . 37
8.1 Single-master transmitter timing . 37
8.1.1 Single-master transmitter bit timing . 37
8.1.2 Single-master transmitter frame sequence timing. 37
8.2 Receiver timing . 38
8.2.1 Receiver bit timing . 38
8.2.2 Receiver bit timing violation . 39
8.2.3 Receiver frame size violation . 40
8.2.4 Receiver frame sequence timing . 40
8.2.5 Reception of backward frames . 40
8.3 Multi-master transmitter timing . 41
8.3.1 Multi-master transmitter bit timing . 41
8.3.2 Multi-master transmitter frame sequence timing . 41
9 Method of operation . 42
9.1 Dealing with frames and commands . 42
9.1.1 General . 42
9.1.2 Frame received or rejected . 43
9.1.3 Frame accepted or ignored . 43
9.1.4 Command accepted or ignored. 43
9.1.5 Command executed or discarded . 43

– 4 – IEC 62386-101:2022 CMV © IEC 2022
9.2 Collision avoidance, collision detection and collision recovery . 44
9.2.1 General . 44
9.2.2 Collision avoidance . 44
9.2.3 Collision detection . 44
9.2.4 Collision recovery . 46
9.3 Transactions.
...

IEC 62386-101 ®
Edition 3.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –
Part 101: General requirements – System components
Interface d'éclairage adressable numérique –
Partie 101: Exigences générales – Composants de système
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
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CH-1211 Geneva 20 www.iec.ch
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
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committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
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IEC 62386-101 ®
Edition 3.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –

Part 101: General requirements – System components

Interface d'éclairage adressable numérique –

Partie 101: Exigences générales – Composants de système

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.50; 29.140.99 ISBN 978-2-8322-5964-1

– 2 – IEC 62386-101:2022 © IEC 2022
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 General . 16
4.1 Purpose . 16
4.2 Version number . 16
4.3 System structure and architecture . 16
4.4 System information flow . 17
4.5 Command types . 17
4.6 Bus units . 18
4.6.1 Transmitters and receivers in bus units . 18
4.6.2 Control gear . 18
4.6.3 Input device . 18
4.6.4 Single-master application controller . 19
4.6.5 Multi-master application controller . 19
4.6.6 Sharing an interface . 19
4.6.7 Power for operation . 20
4.7 Bus power supply and load calculations . 21
4.7.1 Current demand coverage . 21
4.7.2 Maximum signal current compliance . 21
4.7.3 Simplified system calculation . 21
4.8 Wiring . 21
4.8.1 Wiring structure . 21
4.8.2 Wiring specification . 21
4.9 Electrical safety requirements . 22
4.9.1 General . 22
4.9.2 Insulation . 22
4.9.3 Electric strength . 22
4.9.4 Limitation of the touch current from the device to the bus . 22
4.10 Earthing of the bus . 23
4.11 Power interruptions at bus units . 23
4.11.1 Different levels of power interruptions . 23
4.11.2 Short power interruptions of external power supply . 23
4.11.3 External power cycle . 24
4.11.4 Short interruptions of bus power supply . 24
4.11.5 Bus power down . 24
4.11.6 System start-up timing . 24
5 Electrical specification . 26
5.1 General . 26
5.2 Marking of the interface . 26
5.3 Capacitors between the interface and earth . 26
5.4 Signal voltage rating . 26
5.5 Signal current rating. 27
5.6 Marking of bus powered bus unit . 27

5.7 Signal rise time and fall time . 28
6 Bus power supply . 29
6.1 General . 29
6.2 Marking of the bus power supply terminals . 29
6.3 Capacitors between the interface and earth . 29
6.4 Voltage rating . 29
6.5 Current rating. 30
6.5.1 General current rating . 30
6.5.2 Single bus power supply current rating . 30
6.5.3 Integrated bus power supply current rating . 30
6.5.4 Dynamic behaviour of the bus power supply . 30
6.6 Bus power supply timing requirements . 32
6.6.1 Short power supply interruptions . 32
6.6.2 Short circuit behaviour . 32
7 Transmission protocol structure . 33
7.1 General . 33
7.2 Bit encoding . 33
7.2.1 Start bit and data bit encoding . 33
7.2.2 Stop condition encoding . 33
7.3 Frame description . 33
7.4 Frame types . 34
7.4.1 16-bit forward frame . 34
7.4.2 24-bit forward frame . 34
7.4.3 32-bit forward frame . 34
7.4.4 Reserved forward frame . 34
7.4.5 Backward frame . 34
7.4.6 Proprietary forward frames . 34
8 Timing .
...