Digital Addressable Lighting Interface: Difference between revisions

Revision as of 00:11, 31 January 2007

Revision as of 10:13, 31 January 2007

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The '''Digital Addressable Lighting Interface''' ('''DALI''') is a [[digital]] [[communications protocol|protocol]] for the controlling of [[lighting]] in buildings, such as [[electrical ballast]]s and [[dimmer]]s.

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

Each piece of 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 standalone system, DALI can be operated with a maximum of 64 devices. Alternatively, DALI can be used as a subsystem via DALI [[gateway]]s.