Digital addressable lighting interface – Part 351: Particular requirements – Control devices – Luminaire-mounted control devices

IEC 62386-351:2025 is applicable to control devices to be used in, on, or attached to, a luminaire. This document builds on the digital addressable lighting interface as specified in the IEC 62386 series of standards, by adding specific requirements for power consumption, integrated bus and AUX power supplies, a mechanism to arbitrate between multiple application controllers, and a memory bank definition for multi-master devices.
This document is only applicable to control devices complying with IEC 62386‑103.

Interface d'éclairage adressable numérique - Partie 351: Exigences particulières - Dispositifs de commande - Dispositifs de commande montés sur un luminaire

L'IEC 62386-351:2025 s'applique aux dispositifs de commande à utiliser dans, sur ou fixés à un luminaire. Le présent document enrichit l'interface d'éclairage adressable numérique spécifiée dans la série de normes IEC 62386, en ajoutant des exigences spécifiques à la consommation d'énergie, aux alimentations électriques de bus et AUX intégrées, au mécanisme d'arbitrage entre plusieurs contrôleurs d'application, et une définition du bloc de mémoire pour les dispositifs à plusieurs maîtres.
Le présent document s'applique uniquement aux dispositifs de commande conformes à l'IEC 62386‑103.

General Information

Status
Published
Publication Date
14-Aug-2025
Technical Committee
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
15-Aug-2025
Completion Date
10-Sep-2025
Ref Project
Standard
IEC 62386-351:2025 - Digital addressable lighting interface – Part 351: Particular requirements – Control devices – Luminaire-mounted control devices Released:15. 08. 2025 Isbn:9782832706336
English language
15 pages
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Standard
IEC 62386-351:2025 - Interface d'éclairage adressable numérique - Partie 351: Exigences particulières - Dispositifs de commande - Dispositifs de commande montés sur un luminaire Released:15. 08. 2025 Isbn:9782832706336
French language
16 pages
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Standard
IEC 62386-351:2025 - Digital addressable lighting interface – Part 351: Particular requirements – Control devices – Luminaire-mounted control devices Released:15. 08. 2025 Isbn:9782832706336
English and French language
31 pages
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Standards Content (Sample)


IEC 62386-351 ®
Edition 1.0 2025-08
INTERNATIONAL
STANDARD
Digital addressable lighting interface -
Part 351: Particular requirements - Control devices - Luminaire-mounted control
devices
ICS 29.140.50; 29.140.99 ISBN 978-2-8327-0633-6

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CONTENTS
FOREWORD. 2
INTRODUCTION . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General . 7
4.1 General . 7
4.2 Version number . 7
4.3 Insulation . 7
5 Electrical specification . 7
5.1 General . 7
5.2 Bus voltage polarity . 7
5.3 Switched-supply output . 7
6 Integrated bus power supply and AUX power supply . 8
6.1 General . 8
6.2 Integrated bus power supply . 8
6.3 Integrated AUX power supply . 8
6.4 Bus power supply automatic detection and enablement . 9
6.5 AUX power supply automatic detection and enablement . 9
7 Transmission protocol structure . 10
8 Timing . 10
9 Method of operation . 10
9.1 General . 10
9.2 Types of luminaire-mounted control devices. 10
9.3 Feature type . 11
9.4 Electrical specification of AUX power supply consumption . 11
9.5 Application controller arbitration . 12
9.6 Product markings and literature . 12
9.7 Memory bank . 13
10 Declaration of variables . 14
11 Definition of commands . 15

Figure 1 – IEC 62386 graphical overview . 4

Table 1 – Bus power supply current rating . 8
Table 2 – Types of luminaire-mounted control devices . 10
Table 3 – AUX power supply consumption requirements for type A control device . 11
Table 4 – AUX power supply consumption requirements for type B control device . 11
Table 5 – Memory bank 201 . 13
Table 6 – Declaration of device variables . 14

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Digital addressable lighting interface -
Part 351: Particular requirements –
Control devices –
Luminaire-mounted control devices

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 62386-351 has been prepared by IEC technical committee 34: Lighting. It is an International
Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
34/1294/CDV 34/1324/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document is intended to be used in conjunction with:
– IEC 62386-101, which contains general requirements for system components; and
– IEC 62386-103, which contains general requirements for control devices.
A list of all parts in the IEC 62386 series, published under the general title Digital addressable
lighting interface, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
INTRODUCTION
The IEC 62386 series specifies a bus system for control by digital signals of electronic lighting
equipment and contains several parts, referred to as a series. The IEC 62386-1xx series
includes the basic specifications. IEC 62386-101 contains general requirements for system
components, IEC 62386-102 extends this information with general requirements for control gear
and IEC 62386-103 extends it further with general requirements for control devices.
IEC 62386-104 gives requirements for wireless and alternative wired system components.
IEC 62386-105 describes firmware transfer. IEC 62386-150 gives requirements for an auxiliary
power supply which can be stand-alone, or built into control gear or control devices.
The IEC 62386-2xx series extends the general requirements for control gear with lamp specific
extensions and with control gear specific features.
The IEC 62386-3xx series extends the general requirements for control devices with input
device specific extensions describing the instance types, as well as some common features
that can be combined with application controllers and instance types.
This document is intended to be used in conjunction with IEC 62386-101 and IEC 62386-103
and with the various parts that make up the IEC 62386-3xx series of particular requirements for
control devices. The division into separately published parts provides for ease of future
amendments and revisions. Additional requirements will be added as and when a need for them
is recognized.
The setup of the standards is graphically represented in Figure 1 below.

Figure 1 – IEC 62386 graphical overview
When this document refers to any of the clauses of the IEC 62386-1xx series, the extent to
which such a clause is applicable is specified. The other parts also include additional
requirements, as necessary.
All numbers used in this document are decimal numbers unless otherwise specified.
Hexadecimal numbers are given in the format 0xVV, where VV is the value. Binary numbers are
given in the format XXXXXXXXb or in the format XXXX XXXX, where X is 0 or 1, "x" in binary
numbers means "don't care". Where a variable is referred by a bit number, bit 0 is the least
significant bit.
In this document, the following typographic expressions are used:
– variables: "variableName" or "variableName[3:0]", giving only bits 3 to 0 of "variableName";
– range of values: [lowest, highest];
– command: "COMMAND NAME".
1 Scope
This part of IEC 62386 is applicable to control devices to be used in, on, or attached to, a
luminaire. This document builds on the digital addressable lighting interface as specified in the
IEC 62386 series of standards, by adding specific requirements for power consumption,
integrated bus and AUX power supplies, a mechanism to arbitrate between multiple application
controllers, and a memory bank definition for multi-master devices.
This document is only applicable to control devices complying with IEC 62386-103.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62386-101:2022, Digital addressable lighting interface - Part 101: General requirements -
System components
IEC 62386-103:2022, Digital addressable lighting interface - Part 103: General requirements -
Control devices
IEC 62386-150:2023, Digital addressable lighting interface - Part 150: Particular requirements
- Auxiliary power supply
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62386-101,
IEC 62386-103, IEC 62386-150 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1
switched-supply output
optional output that connects to the external supply input via a switch
Note 1 to entry: A switched-supply output can be used to supply other devices in the luminaire, especially when
mains voltage is the external supply input.
3.2
type A
externally powered control device with an integrated multi-master application controller
3.3
type B
control device with either an integrated multi-master application controller with arbitration
algorithm or one or more input device instances, or both
3.4
type C
bus-powered control device with an integrated multi-master application controller
3.5
type D
control device with an integrated single-master application controller
4 General
4.1 General
The requirements of IEC 62386-103:2022, Clause 4 apply, with the restrictions, changes and
additions identified below.
4.2 Version number
In IEC 62386-103:2022, 4.2, "103" shall be replaced by "351", "version number" shall be
replaced by "extended version number" and "versionNumber" shall be replaced by
"extendedVersionNumber".
4.3 Insulation
The insulation requirements given in IEC 62386-101:2022, 4.9.2, do not apply between the bus
interface and the + 24 V AUX power supply input, where the control device is externally powered
by an AUX power supply or includes an integrated AUX power supply, and the negative side of
the bus interface is electrically common with the GND (ground) or negative rail of the AUX
power supply.
5 Electrical specification
5.1 General
The requirements of IEC 62386-103:2022, Clause 5 apply, with the restrictions, changes and
additions identified in 5.2 and 5.3.
5.2 Bus voltage polarity
The requirements of IEC 62386-101:2022, 5.1 apply, except that the control interface is also
permitted to be polarity sensitive if all of the following conditions apply:
– the control device includes a con
...


IEC 62386-351 ®
Edition 1.0 2025-08
NORME
INTERNATIONALE
Interface d'éclairage adressable numérique -
Partie 351: Exigences particulières - Dispositifs de commande - Dispositifs de
commande montés sur un luminaire
ICS 29.140.50; 29.140.99 ISBN 978-2-8327-0633-6

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SOMMAIRE
AVANT-PROPOS . 2
INTRODUCTION . 4
1 Domaine d'application . 6
2 Références normatives . 6
3 Termes et définitions . 6
4 Généralités . 7
4.1 Généralités . 7
4.2 Numéro de version . 7
4.3 Isolation . 7
5 Spécifications électriques . 7
5.1 Généralités . 7
5.2 Polarité de la tension de bus . 7
5.3 Sortie d'alimentation commutée . 7
6 Alimentation électrique de bus et alimentation AUX intégrées . 8
6.1 Généralités . 8
6.2 Alimentation électrique de bus intégrée . 8
6.3 Alimentation AUX intégrée . 9
6.4 Détection et activation automatiques de l'alimentation électrique de bus . 9
6.5 Détection et activation automatiques de l'alimentation AUX . 10
7 Structure du protocole de transmission . 10
8 Cadencement . 10
9 Mode de fonctionnement . 10
9.1 Généralités . 10
9.2 Types de dispositifs de commande montés sur un luminaire . 10
9.3 Type de caractéristique . 11
9.4 Spécifications électriques de la consommation de l'alimentation AUX . 11
9.5 Arbitrage du contrôleur d'application . 12
9.6 Marquage des produits et documentation . 13
9.7 Bloc de mémoire . 14
10 Déclaration des variables . 15
11 Définition des commandes . 16

Figure 1 – Vue d'ensemble de l'IEC 62386 sous forme de graphique . 4

Tableau 1 – Caractéristiques assignées de courant de l'alimentation électrique du bus . 8
Tableau 2 – Types de dispositifs de commande montés sur un luminaire . 11
Tableau 3 – Exigences de consommation de l'alimentation AUX pour un dispositif de
commande de type A . 12
Tableau 4 – Exigences de consommation de l'alimentation AUX pour un dispositif de
commande de type B . 12
Tableau 5 – Bloc de mémoire 201 . 14
Tableau 6 – Déclaration des variables de dispositif. 16

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
Interface d'éclairage adressable numérique -
Partie 351: Exigences particulières –
Dispositifs de commande –
Dispositifs de commande montés sur un luminaire

AVANT-PROPOS
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L'IEC 62386-351 a été établie par le comité d'études 34 de l'IEC: Éclairage. Il s'agit d'une
Norme internationale.
Le texte de cette Norme internationale est issu des documents suivants:
Projet Rapport de vote
34/1294/CDV 34/1324/RVC
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à son approbation.
La langue employée pour l'élaboration de cette Norme internationale est l'anglais.
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2, il a été développé selon les
Directives ISO/IEC, Partie 1 et les Directives ISO/IEC, Supplément IEC, disponibles sous
www.iec.ch/members_experts/refdocs. Les principaux types de documents développés par
l'IEC sont décrits plus en détail sous www.iec.ch/publications.
Le présent document est destiné à être utilisé conjointement avec:
– l'IEC 62386-101, qui spécifie les exigences générales pour les composants de système; et
– l'IEC 62386-103, qui spécifie les exigences générales pour les dispositifs de commande.
Une liste de toutes les parties de la série IEC 62386, publiées sous le titre général Interface
d'éclairage adressable numérique, se trouve sur le site web de l'IEC.
Le comité a décidé que le contenu de ce document ne sera pas modifié avant la date de stabilité
indiquée sur le site web de l'IEC sous webstore.iec.ch dans les données relatives au document
recherché. À cette date, le document sera
– reconduit,
– supprimé, ou
– révisé.
INTRODUCTION
La série IEC 62386 spécifie un système à bus pour la commande des appareils d'éclairage
électroniques par des signaux numériques; elle est composée de plusieurs parties, appelées
série. La série IEC 62386-1xx inclut les spécifications de base. L'IEC 62386-101 contient les
exigences générales relatives aux composants de système, l'IEC 62386-102 complète ces
informations avec les exigences générales relatives aux appareillages de commande et
l'IEC 62386-103 complète ces informations avec les exigences générales relatives aux
dispositifs de commande. L'IEC 62386-104 fournit les exigences relatives aux composants de
système à connexion alternative ou sans fil. L'IEC 62386-105 décrit le transfert du
microprogramme. L'IEC 62386-150 fournit les exigences concernant une alimentation
électrique auxiliaire qui peut être autonome ou intégrée aux appareillages de commande ou
aux dispositifs de commande.
La série IEC 62386-2xx étend les exigences générales relatives aux appareillages de
commande aux extensions spécifiques aux lampes et aux caractéristiques spécifiques aux
appareillages de commande.
La série IEC 62386-3xx étend les exigences générales relatives aux dispositifs de commande
aux extensions spécifiques aux dispositifs d'entrée qui décrivent les types d'instances ainsi que
certaines caractéristiques communes qui peuvent être combinées à des contrôleurs
d'application et types d'instances.
Le présent document est destiné à être utilisé conjointement avec l'IEC 62386-101 et
l'IEC 62386-103, et avec les différentes parties qui composent la série IEC 62386-3xx qui
spécifie les exigences particulières relatives aux dispositifs de commande. La présentation en
parties publiées séparément facilitera les futurs amendements et révisions. Des exigences
supplémentaires seront ajoutées en fonction des besoins identifiés.
La structure des normes est représentée sous forme de graphique à la Figure 1 ci-dessous.

Figure 1 – Vue d'ensemble de l'IEC 62386 sous forme de graphique
Lorsque le présent document fait référence à des articles ou paragraphes de la série
IEC 62386-1xx, le texte précise le degré d'applicabilité de ces articles/paragraphes. Les autres
parties contiennent également des exigences supplémentaires, s'il y a lieu.
Tous les nombres utilisés dans le présent document sont des nombres décimaux, sauf
indication contraire. Les nombres hexadécimaux sont donnés dans le format 0xVV, où VV est
la valeur. Les nombres binaires sont donnés dans le format XXXXXXXXb ou dans le format
XXXX XXXX, où X est 0 ou 1; "x" dans les nombres binaires signifie que "la valeur n'a pas
d'influence". Lorsqu'une variable est désignée par un numéro de bit, le bit 0 est le bit de poids
faible (LSB, least significant bit).
Dans le présent document, les expressions typographiques suivantes sont utilisées:
– variables: "variableName" ou "variableName[3:0]", comporte uniquement les bits 3 à 0 de
"variableName";
– plage de valeurs: [valeur minimale, valeur maximale];
– commande: "NOM DE LA COMMANDE".

1 Domaine d'application
La présente partie de l'IEC 62386 s'applique aux dispositifs de commande à utiliser dans, sur
ou fixés à un luminaire. Le présent document enrichit l'interface d'éclairage adressable
numérique spécifiée dans la série de normes IEC 62386, en ajoutant des exigences spécifiques
à la consommation d'énergie, aux alimentations électriques de bus et AUX intégrées, au
mécanisme d'arbitrage entre plusieurs contrôleurs d'application, et une définition du bloc de
mémoire pour les dispositifs à plusieurs maîtres.
Le présent document s'applique uniquement aux dispositifs de commande conformes à
l'IEC 62386-103.
2 Références normatives
Les documents suivants sont cités dans le texte de sorte qu'ils constituent, pour tout ou partie
de leur contenu, des exigences du présent document. Pour les références datées, seule
l'édition citée s'applique. Pour les références non datées, la dernière édition du document de
référence s'applique (y compris les éventuels amendements).
IEC 62386-101:2022, Interface d'éclairage adressable numérique - Partie 101: Exigences
générales - Composants de système
IEC 62386-103:2022, Interface d'éclairage adressable numérique - Partie 103: Exigences
générales - Dispositifs de commande
IEC 62386-150:2023, Interface d'éclairage adressable numérique - Partie 150: Exigences
particulières - Alimentation électrique auxiliaire
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions de l'IEC 62386-101,
l'IEC 62386-103, l'IEC 62386-150, ainsi que les suivants s'appliquent.
L'ISO et l'IEC tiennent à jour des bases de données terminologiques destinées à être utilisées
en normalisation, consultables aux adresses suivantes:
– IEC Electropedia: disponible à l'adresse https://www.electropedia.org/
– ISO Online browsing platform: disponible à l'adresse https://www.iso.org/obp
3.1
sortie d'alimentation commutée
sortie facultative qui se connecte à l'entrée de l'alimentation externe par l'intermédiaire d'un
commutateur
Note 1 à l'article: Une sortie d'alimentation commutée peut être utilisée pour alimenter d'autres dispositifs dans le
luminaire, en particulier lorsque la tension du réseau d'alimentation est l'entrée d'alimentation externe.
3.2
type A
dispositif de commande alimenté par une source externe, équipé d'un contrôleur d'application
à plusieurs maîtres intégré
3.3
type B
dispositif de commande équipé soit d'un contrôleur d'application à plusieurs maîtres intégré
avec un algorithme d'arbitrage, soit d'une ou de plusieurs instances de dispositif d'entrée, soit
des deux
3.4
type C
dispositif de commande alimenté par bus, équipé d'un contrôleur d'application à plusieurs
maîtres intégré
3.5
type D
dispositif de commande équipé d'un contrôleur d'application à un seul maître intégré
4 Généralités
4.1 Généralités
Les exigences de l'IEC 62386-103:2022, Article 4 s'appliquent, avec les restrictions,
modifications et ajouts identifiés ci-dessous.
4.2 Numéro de version
Au 4.2 de l'IEC 62386-103:2022, "103" doit être remplacé par "351", "numéro de version" doit
être remplacé par "numéro de version étendue" et "versionNumber" doit être remplacé par
"extendedVersionNumber".
4.3 Isolation
Les exigences d'isolation de l'IEC 62386-101:2022, 4.9.2, ne s'appliquent pas entre l'interface
de bus et l'entrée de l'alimentation AUX + 24 V, où le dispositif de commande est alimenté de
manière externe par une alimentation AUX ou comprend une alimentation AUX intégrée, et où
la partie négative de l'interface de bus est électriquement commune avec la terre (GND, ground)
ou le rail négatif de l'alimentation AUX.
5 Spécifications électriques
5.1 Généralités
Les exigences de l'IEC 62386-103:2022, Article 5 s'appliquent, avec les restrictions,
modifications et ajouts identifiés au 5.2 et au 5.3.
5.2 Polarité de la tension de bus
Les exigences de l'IEC 62386-101:2022, 5.1 s'appliquent, excepté que l'interface de commande
peut également être e sensible à la polarité si toutes les conditions suivantes sont remplies:
– le dispositif de commande comprend un connecteur pour le montage du luminaire, et
– la partie négative de l'interface de commande, marquée "DA-", est commune avec la terre
ou le rail négatif d'une entrée d'alimentation AUX, et
– l'entrée de l'alimentation AUX est utilisée comme source d'alimentation externe.
5.3 Sortie d'alimentation commutée
Les dispositifs de type A doivent activer une sortie d'alimentation commutée, le cas échéant,
selon l'emplacement de mémoire "Sortie d'alimentation commutée" dans le bloc de
mémoire 201, Tableau 5, et comme suit:
– 0 (désactivé): la sortie d'alimentation commutée ne doit pas être connectée à l'entrée de
l'alimentation externe;
– 1 (activé): la sortie d'alimentation commutée doit être connectée à l'entrée de l'alimentation
externe.
En plus de la méthode habituelle d'écriture dans le bloc de mémoire, la valeur stoc
...


IEC 62386-351 ®
Edition 1.0 2025-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Digital addressable lighting interface-
Part 351: Particular requirements - Control devices - Luminaire-mounted control
devices
Interface d'éclairage adressable numérique -
Partie 351: Exigences particulières - Dispositifs de commande - Dispositifs de
commande montés sur un luminaire
ICS 29.140.50, 29.140.99 ISBN 978-2-8327-0633-6

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CONTENTS
FOREWORD. 2
INTRODUCTION . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General . 7
4.1 General . 7
4.2 Version number . 7
4.3 Insulation . 7
5 Electrical specification . 7
5.1 General . 7
5.2 Bus voltage polarity . 7
5.3 Switched-supply output . 7
6 Integrated bus power supply and AUX power supply . 8
6.1 General . 8
6.2 Integrated bus power supply . 8
6.3 Integrated AUX power supply . 8
6.4 Bus power supply automatic detection and enablement . 9
6.5 AUX power supply automatic detection and enablement . 9
7 Transmission protocol structure . 10
8 Timing . 10
9 Method of operation . 10
9.1 General . 10
9.2 Types of luminaire-mounted control devices. 10
9.3 Feature type . 11
9.4 Electrical specification of AUX power supply consumption . 11
9.5 Application controller arbitration . 12
9.6 Product markings and literature . 12
9.7 Memory bank . 13
10 Declaration of variables . 14
11 Definition of commands . 15

Figure 1 – IEC 62386 graphical overview . 4

Table 1 – Bus power supply current rating . 8
Table 2 – Types of luminaire-mounted control devices . 10
Table 3 – AUX power supply consumption requirements for type A control device . 11
Table 4 – AUX power supply consumption requirements for type B control device . 11
Table 5 – Memory bank 201 . 13
Table 6 – Declaration of device variables . 14

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Digital addressable lighting interface -
Part 351: Particular requirements –
Control devices –
Luminaire-mounted control devices

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
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6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 62386-351 has been prepared by IEC technical committee 34: Lighting. It is an International
Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
34/1294/CDV 34/1324/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document is intended to be used in conjunction with:
– IEC 62386-101, which contains general requirements for system components; and
– IEC 62386-103, which contains general requirements for control devices.
A list of all parts in the IEC 62386 series, published under the general title Digital addressable
lighting interface, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
INTRODUCTION
The IEC 62386 series specifies a bus system for control by digital signals of electronic lighting
equipment and contains several parts, referred to as a series. The IEC 62386-1xx series
includes the basic specifications. IEC 62386-101 contains general requirements for system
components, IEC 62386-102 extends this information with general requirements for control gear
and IEC 62386-103 extends it further with general requirements for control devices.
IEC 62386-104 gives requirements for wireless and alternative wired system components.
IEC 62386-105 describes firmware transfer. IEC 62386-150 gives requirements for an auxiliary
power supply which can be stand-alone, or built into control gear or control devices.
The IEC 62386-2xx series extends the general requirements for control gear with lamp specific
extensions and with control gear specific features.
The IEC 62386-3xx series extends the general requirements for control devices with input
device specific extensions describing the instance types, as well as some common features
that can be combined with application controllers and instance types.
This document is intended to be used in conjunction with IEC 62386-101 and IEC 62386-103
and with the various parts that make up the IEC 62386-3xx series of particular requirements for
control devices. The division into separately published parts provides for ease of future
amendments and revisions. Additional requirements will be added as and when a need for them
is recognized.
The setup of the standards is graphically represented in Figure 1 below.

Figure 1 – IEC 62386 graphical overview
When this document refers to any of the clauses of the IEC 62386-1xx series, the extent to
which such a clause is applicable is specified. The other parts also include additional
requirements, as necessary.
All numbers used in this document are decimal numbers unless otherwise specified.
Hexadecimal numbers are given in the format 0xVV, where VV is the value. Binary numbers are
given in the format XXXXXXXXb or in the format XXXX XXXX, where X is 0 or 1, "x" in binary
numbers means "don't care". Where a variable is referred by a bit number, bit 0 is the least
significant bit.
In this document, the following typographic expressions are used:
– variables: "variableName" or "variableName[3:0]", giving only bits 3 to 0 of "variableName";
– range of values: [lowest, highest];
– command: "COMMAND NAME".
1 Scope
This part of IEC 62386 is applicable to control devices to be used in, on, or attached to, a
luminaire. This document builds on the digital addressable lighting interface as specified in the
IEC 62386 series of standards, by adding specific requirements for power consumption,
integrated bus and AUX power supplies, a mechanism to arbitrate between multiple application
controllers, and a memory bank definition for multi-master devices.
This document is only applicable to control devices complying with IEC 62386-103.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62386-101:2022, Digital addressable lighting interface - Part 101: General requirements -
System components
IEC 62386-103:2022, Digital addressable lighting interface - Part 103: General requirements -
Control devices
IEC 62386-150:2023, Digital addressable lighting interface - Part 150: Particular requirements
- Auxiliary power supply
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62386-101,
IEC 62386-103, IEC 62386-150 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1
switched-supply output
optional output that connects to the external supply input via a switch
Note 1 to entry: A switched-supply output can be used to supply other devices in the luminaire, especially when
mains voltage is the external supply input.
3.2
type A
externally powered control device with an integrated multi-master application controller
3.3
type B
control device with either an integrated multi-master application controller with arbitration
algorithm or one or more input device instances, or both
3.4
type C
bus-powered control device with an integrated multi-master application controller
3.5
type D
control device with an integrated single-master application controller
4 General
4.1 General
The requirements of IEC 62386-103:2022, Clause 4 apply, with the restrictions, changes and
additions identified below.
4.2 Version number
In IEC 62386-103:2022, 4.2, "103" shall be replaced by "351", "version number" shall be
replaced by "extended version number" and "versionNumber" shall be replaced by
"extendedVersionNumber".
4.3 Insulation
The insulation requirements given in IEC 62386-101:2022, 4.9.2, do not apply between the bus
interface and the + 24 V AUX power supply input, where the control device is externally powered
by an AUX power supply or includes an integrated AUX power supply, and the negative side of
the bus interface is electrically common with the GND (ground) or negative rail of the AUX
power supply.
5 Electrical specification
5.1 General
The requirements of IEC 62386-103:2022, Clause 5 apply, with the restrictions, changes and
additions identified in 5.2 and 5.3.
5.2 Bus voltage polarity
The requirements of IEC 62386-101:2022, 5.1 apply, except that the control interface is also
permitted to be polarity sensitive if all of the following conditions apply:
– the control device includes a connector for luminaire mounting, and
– the negative side of the control interface, which is marked "DA-", is common with the GND
or negative rail of an AUX power supply input, and
– the AUX power supply input is used as the external power source.
5.3 Switched-supply output
Type A devices shall operate a switched-supply output, if present, according to the memory
location "Switched-supply output" in memory bank 201, Table 5, and as follows:
– 0 (disabled): the switched-supply output shall not be connected to the external supply input;
– 1 (enabled): the switched-supply output shall be connected to the external supply input.
In addition to the usual method of writing to the memory bank, the value stored in this memory
location "Switched-supply output" may be changed by the integrated application controller.
Such changes by the integrated application controller shall not occur within the first 10 s after
the last change of this memory location.
NOTE This limitation in modifying the switched-supply output state is included for testability.
A change of the value of memory bank 201 location "Switched-supply output" shall be reflected
in the change in the state of the switched-supply output within 1 s. Changes to this location can
also affect operation of any integrated bus power supply (6.4) or integrated AUX power supply
(6.5).
6 Integrated bus power supply and AUX power supply
6.1 General
The requirements of IEC 62386-103:2022, Clause 6 apply with the restrictions, changes and
additions identified in 6.2 to 6.5.
6.2 Integrated bus power supply
A type A device that cannot be powered by an external AUX supply may include an integrated
bus power supply. Other types shall not include an integrated bus power supply. The remainder
of this Subclause 6.2 applies only in the case where a bus power supply is integrated.
The current that the bus power supply provides to the bus shall be as shown in Table 1.
Table 1 – Bus power supply current rating
Description Minimum Typical Maximum Condition
Maximum supply Guaranteed 250 mA Full voltage range, full temperature range
a
supply current
current
Guaranteed supply 10,0 mA Maximum U = 12,0 V, full temperature range
a
supply current
current
a
The implemented values shall be readable from memory bank 201, Table 5.

If a bus power supply is integrated, it shall operate according to the memory location "Bus power
supply status" in memory bank 201, Table 5, and as follows:
– 0 (disabled): the bus power supply shall be disabled;
– 1 (automatic): the bus power supply shall be disabled after a power-cycle, and can be
enabled according to the automatic detection method described in 6.4.
To ensure that all configuration data is written as expected, it is recommended that a
mechanism is implemented to safely disable or enable an integrated bus power supply. For
example, a configuration tool can include a bus power supply, or the configuration tool can
determine when to disable the integrated bus power supply after all configuration data has been
written.
6.3 Integrated AUX power supply
A type A device that cannot be powered by an external AUX supply may include an integrated
AUX power supply according to IEC 62386-150. Other types shall not include an integrated
AUX power supply. The remainder of this Subclause 6.3 applies only in the case where an AUX
power supply according to IEC 62386-150 is integrated.
If an AUX power supply is integrated, it shall operate according to the memory location "AUX
power supply status" in memory bank 201, Table 5, and as follows:
– 0 (disabled): the AUX power supply shall be disabled;
– 1 (automatic): the AUX power supply shall be disabled after a power-cycle, and can be
enabled according to the automatic detection method described in 6.5.
6.4 Bus power supply automatic detection and enablement
This Subclause 6.4 applies only in the case where a bus power supply is integrated.
After a power-cycle, the bus power supply shall be off.
If "Switched-supply output" in memory bank 201 is "enabled" or not implemented, then a bus
voltage monitoring period shall start or re-start in the following cases:
– immediately after a power cycle, provided "Bus power supply status" in memory bank 201
is "automatic";
– whenever "Bus power supply status" in memory bank 201 is changed from "disabled" to
"automatic".
The bus voltage monitoring period shall end if any of the following conditions become true:
– the maximum bus voltage monitoring period of 5,5 s has elapsed, or
– the bus voltage exceeded the maximum receiver threshold voltage (IEC 62386-101:2022,
Table 8) at any time, or
– "Bus power supply status" in memory bank 201 is set to "disabled", or
– "Switched-supply output" in memory bank 201 is set to "disabled".
In addition, the bus voltage monitoring period may end if the bus voltage exceeds the minimum
receiver threshold voltage (IEC 62386-101:2022, Table 8) at any time.
If the maximum bus voltage monitoring period is reached without being terminated due to the
bus voltage measurement, then the bus power supply shall start-up within 0,5 s.
NOTE The delayed start-up of the integrated bus power supply will result in a system failure condition for control
gear connected to the bus.
The bus power supply shall be turned off immediately, upon any of the following cases:
– "Bus power supply status" in memory bank 201 is set to "disabled", or
– "Switched-supply output" in memory bank 201 is set to "disabled".
6.5 AUX power supply automatic detection and enablement
This Subclause 6.5 applies only in the case where an AUX power supply is integrated.
After a power-cycle, the AUX power supply shall be off.
If "Switched-supply output" in memory bank 201 is "enabled" or not implemented, then an AUX
voltage monitoring period shall start or re-start in the following cases:
– immediately after a power cycle, provided "AUX power supply status" in memory bank 201
is "automatic";
– whenever "AUX power supply status" in memory bank 201 is changed from "disabled" to
"automatic".
The AUX voltage monitoring period shall end if any of the following conditions become true:
– the maximum AUX voltage monitoring period of 5,5 s has elapsed, or
– the AUX voltage exceeded 12 V at any time, or
– "AUX power supply status" in memory bank 201 is set to "disabled", or
– "Switched-supply output" in memory bank 201 is set to "disabled".
In addition, the AUX voltage monitoring period may end if the AUX voltage exceeds 10 V at any
time.
If the maximum AUX voltage monitoring period is reached without being terminated due to the
AUX voltage measurement, then the AUX power supply shall start-up within 0,5 s.
The AUX power supply shall be turned off immediately, upon any of the following cases:
– "AUX power supply status" in memory bank 201 is set to "disabled", or
– "Switched-supply output" in memory bank 201 is set to "disabled".
7 Transmission protocol structure
The requirements of IEC 62386-103:2022, Clause 7 apply.
8 Timing
The requirements of IEC 62386-103:2022, Clause 8 apply.
9 Method of operation
9.1 General
The requirements of IEC 62386-103:2022, Clause 9 apply, with the restrictions and additions
in 9.2 to 9.7.
9.2 Types of luminaire-mounted control devices
The luminaire-mounted control device shall be one of the types A to D specified in Table 2.
Table 2 – Types of luminaire-mounted control devices
Type Application Input Arbitration Power Maximum consumption Maximum bus
a
device algorithm source from AUX power supply current
controller
(9.5) consumption
A MM optional no external 2 W average / 5 W peak 2 mA
c b
B optional bus not used 46 mA
optional yes
c
MM
external 1 W average / 1 W peak 2 mA
C MM optional no bus 0 W 46 mA
D SM no no bus not used 46 mA
external no requirement 2 mA
a
SM = single-master, MM = multi-master
b
Shall be implemented if the control device contains an integrated application controller.
c
The control device shall contain a multi-master application controller or at least one input device instance, or

both.
EXAMPLE Some examples of type A devices are: an outdoor luminaire controller, or a wireless communication
device. An example of a type B device is a light sensor. An example of a type C device is a multi-master application
controller, optionally with an occupancy sensor for indoor luminaire control. An example of a type D device is a
single-master application controller with integrated sensor for use in a stand-alone luminaire.
NOTE The definition of different types A and B is intended to allow up to one type A and up to one type B device to
be attached or connected to a luminaire that also contains an AUX power supply, whilst meeting power consumption
limits and ensuring that the application controller in a type A device takes priority. Types A and C are dominant when
used in systems with type B control devices. Only one of type A or type C control devices can be used in a system.
Type D control devices are not intended to be used with other application controllers.
9.3 Feature type
For types A, B and C, the feature type described in IEC 62386-103:2022, 9.2, shall be
"featureType" as shown in Table 6. This feature shall not exist at instance level.
9.4 Electrical specification of AUX power supply consumption
Control devices described in this document can be externally powered from the AUX power
supply where permitted in Table 2. In this case, the AUX power supply voltage, U , can be
Aux
connected between the AUX power supply positive input pin, and the negative side of the
interface. Requirements are given in Table 3 for type A devices and in Table 4 for type B devices.
Table 3 – AUX power supply consumption requirements for type A control device
Description Rated value Min. value Max. value Conditions
Operating voltage 24,0 V 21,6 V 26,4 V 0,1 W ≤ P ≤ 5,0 W; Including load steps
Load
U
Aux_nom
a
AUX power supply 30,0 V
t ≥ 10 s;
withstand voltage
Average load power  2,0 W 21,6 V ≤ U ≤ 26,4 V;
Aux
consumption
averaging period = 6 ms
P
Load_avg
Pulsed load power  5,0 W 21,6 V ≤ U ≤ 26,4 V;
Aux
consumption
t ≤ 2,2 ms in any 6 ms period; repetitive
P
pulse
Load_pk
b
Input current during  0,11 A U < 21,6 V
Aux
start-up I
Load_start
a
Control device shall withstand at least 30,0 V for at least 10 s.
b
Permissible duty-cycle and peak value for such pulsed load are limited by the specified average power
consumption of the load P
Load_avg.
Table 4 – AUX power supply consumption requirements for type B control device
Description Rated value Min. value Max. value Conditions
Operating voltage 24,0 V 21,6 V 26,4 V 0,1 W ≤ P ≤ 1,0 W; Including load
Load
U
steps
Aux_nom
a
AUX power supply 30,0 V
t ≥ 10 s;
withstand voltage
Load power  1,0 W 21,6 V ≤ U ≤ 26,4 V;
Aux
consumption P
Load_pk
Input current during  0,05 A U < 21,6 V
Aux
start-up I
Load_start
a
Control device shall withstand at least 30,0 V for at least 10 s.

9.5 Application controller arbitration
To ensure the type B device's application controller does not send forward frames when a type
A device or type C device is used in the same system, the type B device shall transmit the query
command and act upon replies as described below, if its own memory bank 201 location 0 x 07
is not equal to 0 x 00 and forward frame transmission is not disabled by another method.
Schedule the transmission of QUERY APPLICATION CONTROLLER ENABLED, using
broadcast addressing with priority 5, at the following times:
– at a time of [27 s, 33 s] after a power cycle, or at a time of [27 s, receiver start-up time
+ 10 %] for the case that the receiver start-up time > 30 s;
– repeating every 15 min ± 1,5 min after the application controller previously transmitted such
a query;
– if location 0x07 contains 0xFF: 10 s ± 1 s after reception of a 16-bit or 24-bit forward frame
that did not originate from this application controller, or after 10 s ± 1 s have elapsed since
the previous transmission of such a query, whichever is later.
NOTE 1 This means that the first forward frame received from another application controller results in the above
query being scheduled within 11 s. Additional forward frames received will not delay the transmission of this query,
except possibly due to bus unavailability.
The application controller shall not reply to its own transmission of the above query.
On receiving any reply to the above query, including a corrupted reply, and if location 0x07 is
equal to 0xFF, then location 0x07 shall be set to 0xFE. On receiving NO reply to the above
query, and if location 0x07 is equal to 0xFE, then location 0x07 shall be set to 0xFF.
This arbitration method shall prevent further forward frame transmissions from the application
controller, except for the above query, according to the value in location 0x07:
– Bank 201, location 0x07 = 0x00: arbitration disabled, forward frames from the application
controller not disabled by the arbitration method.
– Bank 201, location 0x07 = 0xFE: arbitration enabled, forward frames from the application
controller disabled by the arbitration method.
– Bank 201, location 0x07 = 0xFF: arbitration enabled, forward frames from the application
controller not disabled by the arbitration method.
NOTE 2 This affects the application controller but not input device instances (if any).
The application controller in the type B device shall not disable application controllers in other
devices.
It is recommended that other control device types defined in Table 2 do not send DISABLE
APPLICATION CONTROLLER where there is the possibility that they can be removed from the
system. This helps ensure that removal of one application controller will not leave the system
without an enabled application controller.
9.6 Product markings and literature
The control device shall be marked according to its type (Table 2) as follows:
– Type A device: "A".
– Type B device: "B".
– Type C device: "C".
– Type D device: "D".
It is recommended that this marking is located close to other marking related to IEC 62386
standards or related certifications.
The product literature shall state the following:
– The type according to Table 2.
– The presence of an integrated application controller.
– The presence of input device instances, including input device types and quantities.
– The presence of a switched-supply output (5.3).
9.7 Memory bank
Multi-master control devices shall implement memory bank 201 (Table 5).
Table 5 – Memory bank 201
Address Description Default value RESET Memory type
a
(factory)
value
0x00 Address of last accessible memory location [0x07, 0x0C] No change ROM
0x01 Indicator byte Manufacturer Manufacturer Manufacturer
specific specific specific
b
0x02 Lock byte 0xFF 0xFF RAM-RW
Lockable bytes in the memory bank shall be
read-only while the lock byte has a value
different from 0x55.
0x03 Version of the memory bank 0x02 No change ROM
0x04 Type of device Manufacturer No change ROM
specific
0 = Type A; 1 = Type B; 2 = Type C; [3, 255] =
reserved for future use
0x05 Maximum current consumed from the bus Manufacturer No change ROM
power supply (rounded up, with 1 mA specific
resolution)
Range, type A device: [0, 2]
Range, all other types: [0, 46]
0x06 Maximum average power consumed from the Manufacturer No change ROM
AUX power supply (rounded up with 0,1 W specific
resolution)
Range Type A device: [0, 20]
Range Type B device: [0, 10]
Type C device: 0
0x07 Application controller arbitration Type B with No change Type B with
c
integrated AC:
integrated AC :
Type B device with integrated application
NVM-RW
0xFF
controller:
All other
All other cases:
0x00: Arbitration disabled;
cases: ROM
0x00
0xFE: Arbitration enabled, forward frames
from application controller disabled;
0xFF: Arbitration enabled;
Permitted values: 0x00, 0xFE, 0xFF
All other cases: Reserved (answer 0x00)
0x08 Bus power supply status 0x00 No change NVM-RW
d
(protectable)
0x00: Present, but disabled;
0x01: Present and set to automatic;
No answer: No bus power supply integrated.
Range, type A: [0x00, 0x01]. Other types: No
answer
Address Description Default value RESET Memory type
a
(factory)
value
0x09 Guaranteed supply current of integrated bus Manufacturer No change ROM
power supply (in mA) specific
If no bus power supply integrated: No answer.
Range, type A: [10, Maximum supply current
of integrated bus power supply]. Other types:
No answer.
0x0A Maximum supply current of integrated bus Manufacturer No change ROM
power supply (in mA) specific
If no bus power supply integrated: No answer.
Range, type A: [Guaranteed supply current of
integrated bus power supply, 250]. Other
types: No answer.
0x0B AUX power supply status 0x00 No change NVM-RW
d
(protectable)
0x00: Present, but disabled;
0x01: Present and set to automatic;
No answer: No AUX power supply integrated.
Range, type A: [0x00, 0x01]. Other types: No
answer.
0x0C Switched-supply output 0x01 No change NVM-RW
d,e
(protectable)
0x00: Present but disabled;
0x01: Present and enabled;
No answer: No switched-supply output
present.
Range, type A: [0x00, 0x01]. Other types: No
answer.
a
Reset value after "RESET MEMORY BANK".
b
Also used as power on value.
c
"AC" means "application controller".
d
This field is write protectable.
e
This field may be changed by the integrated application controller without requiring execution of any bus
commands.
10 Declaration of variables
The requirements of IEC 62386-103:2022, Clause 10 apply, with the following additions and
changes.
Table 6 shows additions to the device variables for types A, B and C.
Table 6 – Declaration of device variables
Variable Default value Reset value Power on Range of Memory type
(factory) value validity
a
"featureType" 51 no change no change 51 ROM
a
2.0 no change no change 00001000b ROM
"extendedVersionNumber"
a
This variable is independent of identically named variables defined in other parts IEC 62386-3xx.

11 Definition of commands
The requirements of IEC 62386-103:2022, Clause 11 apply. There are no commands defined
in this document.
___________
SOMMAIRE
AVANT-PROPOS . 2
INTRODUCTION . 4
1 Domaine d'application . 6
2 Références normatives . 6
3 Termes et définitions . 6
4 Généralités . 7
4.1 Généralités . 7
4.2 Numéro de version . 7
4.3 Isolation . 7
5 Spécifications électriques . 7
5.1 Généralités . 7
5.2 Polarité de la tension de bus . 7
5.3 Sortie d'alimentation commutée . 7
6 Alimentation électrique de bus et alimentation AUX intégrées . 8
6.1 Généralités . 8
6.2 Alimentation électrique de bus intégrée . 8
6.3 Alimentation AUX intégrée . 9
6.4 Détection et activation automatiques de l'alimentation électrique de bus . 9
6.5 Détection et activation automatiques de l'alimentation AUX . 10
7 Structure du protocole de transmission . 10
8 Cadencement . 10
9 Mode de fonctionnement . 10
9.1 Généralités . 10
9.2 Types de dispositifs de commande montés sur un luminaire . 10
9.3 Type de caractéristique . 11
9.4 Spécifications électriques de la consommation de l'alimentation AUX . 11
9.5 Arbitrage du contrôleur d'application . 12
9.6 Marquage des produits et documentation . 13
9.7 Bloc de mémoire . 14
10 Déclaration des variables . 15
11 Définition des commandes . 16

Figure 1 – Vue d'ensemble de l'IEC 62386 sous forme de graphique . 4

Tableau 1 – Caractéristiques ass
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