Glossary

Terms and definitions concerning DALI, the Digital Adressable Lighting Interface – briefly explained.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

Algorithm
Mathematical method to be used for calculations

Analogue interface
control input or/and output for linear signals having i.e. voltage or current values

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B

Backbone
Higher level bus system for BMS

BMS
Building Management System

Broadcast addressing
Messages are sent to every member of the system

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C

Configuration offline
Initial settings are given to units as disconnected from system

Configuration online
Initial settings are given to units being connected from system

Control line
Cable or wire for control signals

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D

DALI
Digital Addressable Lighting Interface.

DALI control device
Control unit to control and operate the ballasts or transformers within a DALI configuration.

Data communication
transfer of digital data

Data transfer rate
The speed of transferred data normally bits per second

Digital interface
control input or/and output for digital signals

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E

Electronic ballast
Electronic control gear for discharge lamps

Emergency light fitting
luminars, that have to work also, when mains voltage is being switched off

Emergency operation
specified working status for units in case of emergency situations

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F

Fade time
time for the light level to change from initial level to end level

Feedback
returned data to control units, used for corrective operations

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G

Gateway
unit, which selectively passes and transforms data between different systems

Group
Defined combination of single addressed ballasts/transformers.

Group address
common address for a specified group

Groupe reference
Address resp. definition of the group definition.

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H

HVAC
Heat, Ventilation and Air Conditioning 

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I

IEC 60929
international standard for the requirements of electronic ballast performance

IR Control
Infrared controlled lighting feature in the application.

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R

Radio control
Radio controlled lighting feature in the application.

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S

Scene
Defined lightlevel for one or more units

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