IEC 62756-1:2015

Digital load side transmission lighting control (DLT) - Part 1: Basic requirements

IEC 62756-1:2015 specifies a protocol, electrical interface and test procedures for control of electronic lighting equipment by digital signals over the load side mains wiring. Safety requirements are not covered by this standard.

Commande d'éclairage par transmission numérique côté charge (DLT) - Partie 1: Exigences de base

L'IEC 62756-1:2015 spécifie un protocole, une interface électrique et des procédures d'essai pour la commande des équipements d'éclairage électronique par signaux numériques sur le câblage secteur côté charge. Les exigences de sécurité ne sont pas couvertes par la présente Norme.

General Information

• Status: Published
• Publication Date: 26-May-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.140.99 - Other standards related to lamps
• Technical Committee: SC 34C - Auxiliaries for lamps
• Current Stage: PPUB - Publication issued
• Start Date: 15-Sep-2015
• Completion Date: 27-May-2015

Standards Content (Sample)

IEC 62756-1 ®
Edition 1.0 2015-05
INTERNATIONAL
STANDARD
colour
inside
Digital load side transmission lighting control (DLT) –
Part 1: Basic requirements
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
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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.

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IEC 62756-1 ®
Edition 1.0 2015-05
INTERNATIONAL
STANDARD
colour
inside
Digital load side transmission lighting control (DLT) –

Part 1: Basic requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140.99 ISBN 978-2-8322-2711-4

– 2 – IEC 62756-1:2015 © IEC 2015
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 General description . 10
4.1 General . 10
4.2 Master-slave structure . 10
4.3 Specification overview . 10
5 General requirements . 10
5.1 Voltage rating . 10
5.2 Frequency rating . 11
5.3 Marking of control devices and control gear . 11
6 Electrical specification . 11
6.1 General . 11
6.2 Wiring method . 12
6.3 Wiring diagram . 12
6.4 Block diagram of the control gear . 12
6.5 Block diagram of the control device . 13
6.6 Electrical characteristics in different periods of the mains waveform . 13
6.6.1 General . 13
6.6.2 Separation of the half-wave into time periods . 14
6.6.3 Electrical characteristics of the supply period . 14
6.6.4 Electrical characteristics of the operating period . 19
6.6.5 Electrical characteristics of the data period . 19
6.7 Data signal voltage range and timing . 23
6.8 Power up timing . 23
6.9 Electrical characteristics during the off state of control gear . 24
6.9.1 General . 24
6.9.2 Power controlled off state . 24
6.9.3 Telegram controlled off state . 25
7 Data timing . 25
7.1 General . 25
7.2 Information bit timing . 25
7.3 Permissible frames . 25
8 Telegram structure . 26
8.1 General . 26
8.2 Telegrams . 27
8.2.1 General . 27
8.2.2 Group number . 27
8.2.3 Telegram type . 27
8.2.4 Parity bit . 27
8.2.5 Data for control of the control gear . 27
9 Definition of telegram types . 27
9.1 Summary of telegram types . 27

9.2 Telegram type 0: Brightness . 28
9.3 Telegram type 1: Colour control . 28
9.4 Telegram type 2: Colour temperature control . 29
9.5 Telegram type 3 . 29
9.6 Telegram type 4 . 29
9.7 Telegram type 5: commissioning: Group number assignment . 29
9.8 Telegram type 6: Manufacturer specific . 30
9.9 Telegram type 7: extended telegram . 30
10 Method of operation . 30
10.1 General . 30
10.2 Brightness . 31
10.2.1 General . 31
10.2.2 Response time . 31
10.2.3 Light output level . 31
10.2.4 Start-up . 31
10.3 Colour control . 31
10.3.1 General . 31
10.3.2 Colour (x, y) . 31
10.3.3 Response time . 32
10.3.4 Colour gamut . 32
10.3.5 Start-up . 32
10.4 Colour temperature control . 33
10.4.1 General . 33
10.4.2 CCT (correlated colour temperature) . 33
10.4.3 Response time . 33
10.4.4 Start-up . 33
10.5 Telegram controlled group number assignment . 33
10.6 Manufacturer specific telegram . 34
11 Test procedures . 34
11.1 General . 34
11.2 Electrical characteristics tests . 35
11.2.1 General . 35
11.2.2 Test of control device . 35
11.2.3 Test of control gear . 38
11.3 Test of data timing . 41
11.4 Test of telegram structure . 41
11.4.1 Test of control device . 41
11.4.2 Test of control gear . 41
11.5 Test of telegram types . 42
11.5.1 General . 42
11.5.2 Rejection of unsupported telegram types . 42
11.5.3 Test of telegram type 0: brightness . 42
11.5.4 Test of telegram type 1: colour control . 42
11.5.5 Test of telegram type 2: colour temperature control . 43
11.5.6 Test of telegram type 5: commissioning . 43
11.5.7 Test of telegram type 6: manufacturer specific . 43
11.6 Test of method of operation . 43
11.6.1 General .
...

IEC 62756-1 ®
Edition 1.0 2015-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital load side transmission lighting control (DLT) –
Part 1: Basic requirements
Commande d’éclairage par transmission numérique côté charge (DLT) –
Partie 1: Exigences de base
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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3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
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IEC 62756-1 ®
Edition 1.0 2015-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital load side transmission lighting control (DLT) –

Part 1: Basic requirements
Commande d’éclairage par transmission numérique côté charge (DLT) –

Partie 1: Exigences de base
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99 ISBN 978-2-8322-3038-1

– 2 – IEC 62756-1:2015 © IEC 2015
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 General description . 10
4.1 General . 10
4.2 Master-slave structure . 10
4.3 Specification overview . 10
5 General requirements . 10
5.1 Voltage rating . 10
5.2 Frequency rating . 11
5.3 Marking of control devices and control gear . 11
6 Electrical specification . 11
6.1 General . 11
6.2 Wiring method . 12
6.3 Wiring diagram . 12
6.4 Block diagram of the control gear . 12
6.5 Block diagram of the control device . 13
6.6 Electrical characteristics in different periods of the mains waveform . 13
6.6.1 General . 13
6.6.2 Separation of the half-wave into time periods . 14
6.6.3 Electrical characteristics of the supply period . 14
6.6.4 Electrical characteristics of the operating period . 19
6.6.5 Electrical characteristics of the data period . 19
6.7 Data signal voltage range and timing . 23
6.8 Power up timing . 23
6.9 Electrical characteristics during the off state of control gear . 24
6.9.1 General . 24
6.9.2 Power controlled off state . 24
6.9.3 Telegram controlled off state . 25
7 Data timing . 25
7.1 General . 25
7.2 Information bit timing . 25
7.3 Permissible frames . 25
8 Telegram structure . 26
8.1 General . 26
8.2 Telegrams . 27
8.2.1 General . 27
8.2.2 Group number . 27
8.2.3 Telegram type . 27
8.2.4 Parity bit . 27
8.2.5 Data for control of the control gear . 27
9 Definition of telegram types . 27
9.1 Summary of telegram types . 27

9.2 Telegram type 0: Brightness . 28
9.3 Telegram type 1: Colour control . 28
9.4 Telegram type 2: Colour temperature control . 29
9.5 Telegram type 3 . 29
9.6 Telegram type 4 . 29
9.7 Telegram type 5: commissioning: Group number assignment . 29
9.8 Telegram type 6: Manufacturer specific . 30
9.9 Telegram type 7: extended telegram . 30
10 Method of operation . 30
10.1 General . 30
10.2 Brightness . 31
10.2.1 General . 31
10.2.2 Response time . 31
10.2.3 Light output level . 31
10.2.4 Start-up . 31
10.3 Colour control . 31
10.3.1 General . 31
10.3.2 Colour (x, y) . 31
10.3.3 Response time . 32
10.3.4 Colour gamut . 32
10.3.5 Start-up . 32
10.4 Colour temperatu
...