Digital Addressable Lighting Interface: Difference between revisions

Revision as of 07:31, 18 July 2006

Revision as of 14:35, 25 July 2006

Line 1:

The '''DigitallyDigital AdressableAddressable Lighting Interface''' ('''DALI''') is a [[digital]] [[Communicationscommunications protocol|protocol]] for the controlling of [[lighting]] in buildings, (e.g.such as [[Ballast (electrical) ballast]],s and [[Dimmerdimmer]], etc.)s.

DALI was established as a successor for the still market dominating [[1-10v]] and an [[Openopen standard]] rival to [[Digital Signal Interface|DSI]] (DSI), on which it is based. DALI is standardized in accordance with [[International Electrotechnical Commission]] (IEC) 60929, standard for fluorescent lamp ballasts.

Each operating equipment with a DALI interface can be communicated with over DALI individually. Using a [[bi-directional]] data exchange, a DALI controller can query and set the status of each light. As a “standstandalone alone system”system, DALI can be operated with a maximum of 64 devices. Alternatively, DALI can be used as a subsystem via DALI gateways[[gateway]]s.

== Advantages ==

DALI is an [[open standard]] not exclusively owned by a single company. It only requires one [[electrical bus|bus]] wire for up to 64 devices.

== Disadvantages ==

Each device gives itself a random number to identify itself, which makes inital installation and replacing faulty devices confusing as there is no indication which device is which, until youthe sendoperator sends out test signals and looklooks to see which device responds. Being restricted to sixty-four64 addresses (six [[bit]]s), DALI cannot be used in large installations without using another technology to circumvent[[workaround]] the limitation.

== External links==

Line 15:

* [http://www.dali-ag.org/ AG-DALI], a working group set up by leading manufacturers and institutions in the field of digital lamp/luminaire control to promote DALI technology and applications

=== Manufacters of DALI Devices ===

* [http://www.Osram.com Osram]

* [http://www.philips.com/ Philips]

Line 21:

* [http://www.Spirelighting.com Spire Lighting]

* [http://www.Evolt.com.au Evolt lighting]

* [http://www.daliemergency.com DALI EMERGENCYEmergency]

* [http://www.tridonicatco.com TridonicAtcoTridonic ATCO]

[[Categorycategory:Lighting lighting]]

[[Categorycategory:Open open standards]]

[[de:Digital Adressable Lighting Interface]]