Specifications

Crestron Commercial Lighting Design Guide
36 Doc. 4775B | Crestron.com
DALI
The Digital Addressable Lighting Interface (DALI) is a protocol used for the direct control of lighting ballasts. A
DALI controller communicates bi-directionally with up to 64 individual DALI ballasts over a low-voltage 2-wire bus,
providing fixture-level control. Because each fixture can be controlled individually, DALI systems afford the ability
to easily configure and reconfigure spaces. Control wires are daisy chained between each ballast (up to 64 of
them), making wiring much simpler than in 0-10V dimming systems. Besides being extremely flexible, the DALI
data is resistant to noise, allowing it to run alongside high-voltage power lines.
DALI uses bi-directional communication, meaning the system can set dimming levels and query the status of each
individual ballast. DALI systems can report lighting failure, allowing for easier maintenance. Controllers can even
query the energy usage for each light, allowing for tracking of energy costs.
Crestron DALI commissioning software simplifies and expedites system installation. The setup wizard provides
step-by-step configuration of ballast properties, groups, and scenes. Simply set the ballast address, check the
connectivity status, edit the minimum and maximum levels, edit the fade time, and change the ballast grouping
and scenes as needed. This powerful tool uses automatic identification of new hardware IDs for simple ballast
replacement. Settings from old ballasts are transferred to replacements with just a few mouse clicks, saving time
and eliminating guesswork.
• Addressable ballasts provide very granular control
• Simple yet robust control wiring
• Bi-directional communication with ballasts
• Easy setup with Crestron DALI commissioning software
When to Specify DALI Systems
DALI systems should be used where ballast-level control is required. DALI is ideal for open-space commercial
environments. When cubicle and workspace layouts change, the lighting can be adjusted accordingly. Other
typical applications include lecture halls and conference rooms. DALI provides tremendous flexibility for both
retrofit and new installations.
Products
The following products are part of a DALI system. In addition to the DIN-DALI-2, other Crestron DIN Rail products
are listed. These products install in the same cabinet as the DIN-DALI-2. The DIN-AP2 processor connects with
any of these products via Cresnet or Ethernet.
DALI and DIN Rail Products
DIN-DALI-2
DALI Interface Module
DIN-2MC2
2 Channel Bidirectional Motor Control
DIN-AP2
2-Series Control Processor
DIN-HUB
Cresnet Distribution Hub
DIN-AO8
8 Output 0-10V Analog Module
DIN-BLOCK
12 Port Cresnet Distribution Block
DIN-IO8
8 Versiport I/O Module
DIN-PWS50
50 Watt Cresnet Power Supply