IEC 62386-101:2014/AMD1:2018

Amendment 1 - Digital addressable lighting interface - Part 101: General requirements - System components

Defines how to apply the principles and requirements given in IEC 61739 to monolithic integrated circuits. The standard is applicable to those manufacturers of integrated circuits (ICs) who apply for manufacturing line approval.[
]The objective is to establish consistency in the requirements used by manufacturers and auditors for techniques related to integrated circuit manufacturing.[
]Each manufacturer may use his own methods for satisfying the requirements of this standard, provided that the required level of control in the manufacturing line is reached.

Amendement 1 - Interface d'éclairage adressable numérique - Partie 101: Exigences générales - Composants de système

Définit de quelle façon les principes et les exigences de la CEI 61739 sont appliqués aux circuits intégrés monolithiques. Elle est applicable aux fabricants de circuits intégrés (CI) qui demandent l'agrément d'une ligne de fabrication.[
]L'objet de ce guide est d'établir la cohérence des exigences utilisées par les fabricants et les auditeurs pour les technologies liées à la fabrication de circuits intégrés.[
]Chaque fabricant peut avoir ses propres méthodes pour satisfaire au contenu de la présente norme, pourvu que le niveau requis de contrôle de la ligne de fabrication soit atteint.

General Information

• Status: Published
• Publication Date: 24-May-2018
• ICS: 29.140.50 - Lighting installation systems
• ICS: 29.140.99 - Other standards related to lamps
• ICS: 31.200 - Integrated circuits. Microelectronics
• Technical Committee: SC 34C - Auxiliaries for lamps
• Drafting Committee: WG 11 - TC 34/WG 11
• Current Stage: DELPUB - Deleted Publication
• Start Date: 16-Nov-2022
• Completion Date: 26-Oct-2025

Relations

• Amends: IEC 62386-101:2014 - Digital addressable lighting interface - Part 101: General requirements - System components
• Effective Date: 05-Sep-2023
• Revised: IEC 62386-101:2022 - Digital addressable lighting interface - Part 101: General requirements - System components
• Effective Date: 05-Sep-2023

Overview

IEC 62386-101:2014/AMD1:2018 is an amendment to the international standard IEC 62386-101, which specifies general requirements for system components in digital addressable lighting interface (DALI) systems. Published by the International Electrotechnical Commission (IEC), this amendment updates critical aspects to align with evolving technologies and industry needs within lighting control systems. The standard is essential for manufacturers, auditors, and system integrators involved in the development and implementation of DALI components such as bus power supplies, control gear, and application controllers.

This amendment serves to reinforce interoperability, reliability, and performance in DALI network components by refining system structure, signal timing, power supply requirements, and frame reception protocols. It integrates with other parts of the IEC 62386 series, particularly parts 102 and 103, which delve into general requirements for control gear and control devices, respectively.

Key Topics

System Components and Architecture

• Defines minimum required components such as bus power supplies, control gear, application controllers, and input devices.
• Specifies quantities and roles of each system element to maintain consistency and seamless communication on the DALI bus.

Signal Voltage and Current Ratings

• Ensures voltage levels for signaling are polarity insensitive, contributing to robust network operation even with reverse voltages.
• Establishes maximum current draw limits for bus units to prevent overload or damage, including during power transition phases.

Frame and Command Processing

• Clear definitions for frame states including accepted, ignored, rejected, and received frames to enhance data integrity.
• Detailed timing requirements for receiver bit timing, transmission, and multi-master arbitration ensure proper frame interpretation and command execution.
• Flowchart and procedural logic highlight how frames transition from raw data to executed commands in the system.

Power Interruptions and Recovery

• Specifies categories of power interruptions such as short interruptions, bus power down, and system failure, each with defined behaviors for affected components.
• Power-up and external power cycle behaviors are standardized to maintain stability and predictable state recovery in components.

Terminology and Normative References

• Incorporates updated terms and definitions relevant to DALI systems, with clear references to ISO and IEC terminological databases for global consistency.
• Updates normative references to ensure compatibility with IEC 62386-102 and IEC 62386-103 series amendments.

Applications

IEC 62386-101:2014/AMD1:2018 is applicable for:

• Manufacturers designing and producing DALI system components to ensure compliance with international performance and safety norms.
• Lighting system integrators implementing scalable, interoperable control networks that conform to DALI protocol specifications.
• Auditors and certification bodies evaluating manufacturing lines, system components, and installation integrity for compliance with IEC 62386 standards.
• Control gear and lighting device developers seeking to align product capabilities with the latest digital interface requirements, including DC supply considerations.
• Facility managers and electrical engineers maintaining system reliability and ensuring robust power management in commercial and industrial lighting installations.

The standard’s emphasis on frame timing, power supply stability, and communication protocols makes it vital for complex lighting control systems requiring high reliability and energy efficiency.

Related Standards

To fully implement and understand the system requirements addressed by IEC 62386-101:2014/AMD1:2018, engagement with the following related IEC standards is recommended:

• IEC 62386-102:2014 & IEC 62386-102:2014/AMD1: General requirements for control gear in DALI systems.
• IEC 62386-103:2014 & IEC 62386-103:2014/AMD1: General requirements for control devices, including application controllers and input devices.
• IEC 61347 (all parts): Lamp controlgear standards referenced in terms of compliance and design considerations.

Additional references include authoritative IEC publications, glossaries, and the IEC Electropedia online dictionary for comprehensive terminology in lighting and electrotechnical domains.

---

By adhering to the updated framework and criteria established in IEC 62386-101:2014/AMD1:2018, stakeholders in the lighting industry can ensure optimized digital addressable lighting networks that are future-proof, interoperable, and compliant with sustainable energy practices. This standard plays a critical role in enabling smart lighting solutions globally.

Standards Content (Sample)

IEC 62386-101 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Digital addressable lighting interface –
Part 101: General requirements – System components

Interface d’éclairage adressable numérique –
Partie 101: Exigences générales – Composants de système

IEC 62386-101:2014-11/AMD1:2018-05(en-fr)

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IEC 62386-101 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
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 978-2-8322-5657-2

– 2 – IEC 62386-101:2014/AMD1:2018
© IEC 2018
FOREWORD
This amendment has been prepared by IEC technical committee 34: Lamps and related
equipment.
The text of this amendment is based on the following documents:
CDV Report on voting
34/418/CDV 34/502/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
INTRODUCTION
Replace the first sentence of the fourth paragraph with the following new text:
This second edition of IEC 62386-101 is intended to be used in conjunction with
IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:— and with the various parts that make
up the IEC 62386-2xx series for control gear, together with IEC 62386-103:2014 and
IEC 62386-103:2014/AMD1:— and the various parts that make up the IEC 62386-3xx series
of particular requirements for control devices.

© IEC 2018
1 Scope
Delete the second sentence and add, at the end of the first sentence, the following new text:
which is in line with the requirements of IEC 61347 (all parts), with the addition of DC
supplies.
2 Normative references
Replace the first paragraph with the following new text:
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.
Delete the reference "IEC 61347 (all parts), Lamp controlgear".
Replace the references to IEC 62386-102 and IEC 62386-103 with the following new
references:
IEC 62386-102:2014, Digital addressable lighting interface – Part 102: General requirements
– Control gear
IEC 62386-102:2014/AMD1:—
IEC 62386-103:2014, Digital addressable lighting interface – Part 103: General requirements
– Control devices
IEC 62386-103:2014/AMD1:—
3 Terms and definitions
Add, after the first sentence, the following new text:
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
Add after 3.49 the following new terms:
3.50
frame accepted
frame that has been received and uses the correct frame type and data bit content
___________
Under preparation. Stage at the time of publication: IEC DECFDIS 62386-102/AMD1:2018.
Under preparation. Stage at the time of publication: IEC RFDIS 62386-103/AMD1:2018.

– 4 – IEC 62386-101:2014/AMD1:2018
© IEC 2018
3.51
frame ignored
frame received but not accepted
3.52
frame received
frame with a valid start bit, valid data bits, and a stop condition
3.53
frame rejected
frame not received
4.2 Version number
Replace the fourth paragraph with the following new text:
The current version number is "2.01".

4.3 System structure and architecture
Replace Table 1 with the following new Table 1:
Table 1 – System components
Component Quantity For detailed information see
Bus power supply ≥ 1 Clause 6
IEC 62386-102:2014 and
Control gear ≥ 0
IEC 62386-102:2014/AMD1:—
IEC 62386-103:2014 and
Application controller
≥ 1
IEC 62386-103:2014/AMD1:—
IEC 62386-103:2014 and
Input devices
≥ 0
IEC 62386-103:2014/AMD1:—
Bus 1 Subclause 4.8 and Clause A.2

4.6.1 Transmitters and receivers in bus units
Replace the first sentence with the following new sentence:
Table 2 gives a short summary of the different receivers and transmitters allowed for each bus
unit.
Add after the first sentence:
It is not allowed for a bus unit to transmit or receive other frames than the ones indicated in
Table 2, except proprietary forward frames.

© IEC 2018
4.6.4 Single master application controller
Delete NOTE 3.
4.11.1 Different levels of power interruptions
Table 4
In the third column, fourth row, delete "450 ms" and in the last column, fifth row, add "for
system failure" after "Grey area", as follows:
Minimum Typical Maximum Description
Short interruptions of bus power
40 ms
a
supply
> 40 ms < 45 ms Grey area
b
45 ms  Bus power down
> 450 ms < 550 ms Grey area for system failure
b
550 ms  System failure
a
See 4.11.4.
b
See Clause 3.
4.11.3 External power cycle
Replace the first paragraph with the following new paragraph:
After an external power cycle (see Table 3), an externally powered bus unit shall apply power-
on behaviour to all logical units simultaneously. During an external power cycle, a bus unit
might still respond to commands.

4.11.5 Bus power down
Replace the existing text with the following new text:
A bus powered bus unit may interpret bus power down as an external power cycle. It shall
interpret system failure as an external power cycle. The behaviour shall apply to all logical
units simultaneously. See Table 4.

5.4 Signal voltage rating
Add, after NOTE 1, the following new text:
Devices need to be polarity insensitive (see 5.1) or power supplies need to be able to
withstand reverse voltages (see 9.7).

– 6 – IEC 62386-101:2014/AMD1:2018
© IEC 2018
Table 7
In the second column, last row, replace "-6,5 V" with "0 V", as follows:
Minimum Typical Maximum
Nominal system voltage U 0 V 20,5 V
Absolute maximum system voltage 0 V 22,5 V

Table 8
In the second column, last row, replace "-6,5 V" with "0 V", as follows:
Minimum Typical Maximum
High level voltage 9,5 V 22,5 V
Threshold voltage > 6,5 V 8,0 V < 9,5 V
Low level voltage 0 V 6,5 V
5.5 Signal current rating
Table 10
Replace, in footnote "a", "See 4.7" with "See 4.7, 5.6 and the text below", as follows:
Minimum Typical Maximum Condition
Externally powered bus unit current
consumption I when not  2,0 mA
BUS
transmitting
0 V ≤ U ≤ 22,5 V
Bus powered bus unit current
a
consumption I when not  250 mA
BUS
transmitting
Current consumption I when not
b c
BUS
10 µA U ≤ U ≤ 22,5 V
TH
transmitting
d
Transmitter sink current 250 mA  U ≤ 4,5 V
a
This is the theoretical maximum current. In reality a device should consume less current. See 4.7, 5.6 and
the text below.
b
The minimum current consumption is necessary for discharging the wiring capacitances and input
capacitances of the bus units connected.
c
U is the threshold voltage of the receiver.
TH
d
This is the required resulting voltage when sinking the maximum current.

Add, after Table 10, the following new text:
Bus units shall not to draw more than their specified maximum current, not even during power
up or power down. For bus powered units the actual value to use for testing is the
documented maximum current consumption.

6.5.2 Single bus power supply current rating
Add, after the first sentence, the following new sentence:
Such a power supply should be able to withstand any ringing on the bus; no test is provided.

© IEC 2018
8.2.1 Receiver bit timing
Replace the first sentence with the following new sentence:
A receiver shall receive or reject frames according to the bit timing requirements as follows.
Replace NOTE 2 with the following new NOTE 2:
NOTE 2 For the significance of this, see 9.8.

8.2.2 Receiver bit timing violation
Replace the first paragraph with the following new paragraph:
If a receiver detects a bit timing violation it shall reject the frame, except in the case of a
backward frame. See 8.2.5.
8.2.4 Receiver frame sequence timing
Table 20
In the last column, replace all instances of "accepted" with "interpreted" and in footnote "b",
replace "accepted or rejected" with "interpreted in multiple ways", as follows:

Minimum Typical Maximum Description
a b
> 1,4 ms < 2,4 ms Grey area
Frame shall be interpreted as
2,4 ms 12,4 ms
Settling time between
backward frame.
forward frame and
b
Grey area
backward frame > 12,4 ms < 13,4 ms
Frame shall not be interpreted as
13,4 ms
backward frame.
a b
> 1,4 ms < 2,4 ms Grey area
Settling time between
forward frame and forward
Frame shall be interpreted as
2,4 ms
frame
forward frame.
a b
> 1,4 ms < 2,4 ms Grey area
Frames shall be interpreted as
Settling time between first
2,4 ms 94 ms
send-twice forward frames.
and second forward frame
of send-twice forward
c d
> 94 ms < 105 ms Grey area
c
frames
Frames shall be interpreted as
105 ms
two separate forward frames.
a b
> 1,4 ms < 2,4 ms Grey area
Settling time between
backward frame and
Frame shall be interpreted as
2,4 ms
forward frame
forward frame.
a
Because of the definition of the stop condition this is the minimum time to distinguish frames.
b
Frames within this area can be interpreted in multiple ways.
c
See 9.3.
d
Frames within this area can be interpreted as send-twice forward frames or as two separate forward frames.

– 8 – IEC 62386-101:2014/AMD1:2018
© IEC 2018
8.2.5 Reception of backward frames
Replace the text with the following new text:
The reception of a backward frame shall start with the first active state after the forward frame
which triggered the backward frame if this first active state is detected within a maximum of
13,4 ms settling time.
If this frame triggers a frame size violation or bit timing violation, it shall be interpreted as a
backward frame. Such a frame might contain information that is worth processing in certain
cases. See also 7.4.4 and 9.5.2.

8.3.1 Multi-master transmitter bit timing
Table 21
Replace, in the second column, the stop condition time value "2 400 µs" with "2 450 µs", as
follows:
Minimum Typical Maximum
Half bit time t , t
400,0 µs 416,7 µs 433,3 µs
HIGH LOW
Double half bit time t , t 800,0 µs 833,3 µs 866,7 µs
DOUBLE,LOW DOUBLE,HIGH
Stop condition time T
2 450 µs
STOP
9 Method of operation
Add, before the existing Subclause 9.1, the following new Subclause 9.8:
9.8 Dealing with frames and commands
9.8.1 General
The flow from the moment a number of bits are received on bus interface until a command is
executed is illustrated in Figure 20. The conditions to enter the next state are described
below. Subclause 9.8 does not necessarily apply when using proprietary forward frames.

© IEC 2018
Dealing with frames and commands
Bits received
Stop condition received
and Bit timing correct?
No Yes
Frame rejected Frame received
Known frame type?
No Yes
Frame ignored Frame accepted
Known data content?
No
Yes
Command ignored Command accepted
Resources available?
No Yes
Command discarded Command executed

IEC
Figure 20 – Dealing with frames and commands
9.8.2 Frame received or rejected
Any frame consisting of valid bits and a stop condition shall be considered received,
otherwise it shall be considered rejected.
9.8.3 Frame accepted or ignored
Any received frame that uses the correct frame type and correct number of data bits for a
particular receiver shall be considered accepted, otherwise it shall be considered ignored.
9.8.4 Command accepted or ignored
Any accepted frame shall be analysed for content. If the content forms a command, this
command shall be accepted, otherwise it shall be considered as an ignored command.
NOTE Further details on commands are given in IEC 62386-102, IEC 62386-103, the IEC 62386-2xx series and
the IEC 62386-3xx series.
9.8.5 Command executed or discarded
Any accepted command shall be executed in the settling time between the frame in which it
was received and the next possible frame on the bus, except when explicitly stated otherwise
in the description of the command. Execution of the command could depend on resources to
handle the command.
– 10 – IEC 62386-101:2014/AMD1:2018
© IEC 2018
Accepted commands that are not executed are considered discarded.
NOTE 1 The next frame on the bus could be a new command or the answer to the received command.
NOTE 2 This timing requirement refers to the change of and the reaction to internal signals of a bus unit. The
delay time between external signals and internal signals of a bus unit is not in the scope of this standard, but could
be a performance issue of a system.
The refresh rate of internal variables (for example a status) should be such that a correct new
value can be observed immediately following a command that changes this value (for example
a configuration command), except when explicitly stated otherwise in the description of the
command.
The execution of a command may involve the triggering of a process which itself takes longer
than the settling time between frames.
NOTE 3 An example for such a process is a running fade.
9.3 Send-twice forward frames and send-twice commands
Replace the first sentence with the following new sentence:
Some of the commands defined in IEC 62386-102, IEC 62386-103, the IEC 62386-2xx series
and the IEC 62386-3xx series need to be accepted twice within a defined period of time
before being executed.
9.4 Command iteration
Replace the text between Table 26 and Table 27 with the following new text:
A receiver shall trigger the appropriate function when the frame of the first command of
command iteration is accepted.
A receiver shall extend the appropriate function after each acceptance of the command if the
frame is received before the maximum receiver command iteration timeout given in Table 27,
even if other frames are received within the command iteration.

12 Test procedures
Replace the entire content with the following new text:
Void.
A.2.2 Single master architecture
Delete, in the first paragraph, the last bulleted list item.

Add, at the end of Annex A, the following new Clause A.7:
A.7 Effects on combining version number 1 and version number 2.y devices
Table A.3 shows the effects of replacing/adding a certain edition device (given vertically) in a
system formed by devices of the same edition (given horizontally), where minor version
number y is currently in the range of 0 to 1.
...