What does DALI stand for?
DALI stands for Digital Addressable Lighting Interface.
What is DALI?
The DALI protocol is a lighting control system that allows you to address and control lights. It uses a two-way communication allowing users to talk to the lights and issue commands but also the lighting to communicate back.
What are some of the advantages to DALI?
Some of the advantages to DALI are the fact it is an open protocol, so any manufacturer can use it. Furthermore, with the introduction of DALI 2 interoperability between manufacturers is guaranteed. Installation is simple with DALI as you can run power and control lines together with no shielding. Also, because all devices have their own address, this allows for flexible control.
Why does DALI use 2-way communication?
DALI uses 2-way communication as it allows you to issue commands but it also allows for faults/diagnostics to be sent back to the user so they can see if there are any issues.
How is DALI wired?
DALI is wired using a multi-core cable that also carries mains power. The most common cables are 5-core or 6-core. DALI can use bus, star, tree, or line topologies, but not ring or mesh.
What are the minimum requirements for a DALI system?
A DALI system requires a DALI bus supply, a DALI operating device, and a DALI control unit. The maximum power requirement is 250mA, and the cable length should be no more than 300m.
How can I test DALI products?
You can test DALI products using an approved tester and the official test sequence software. You can also submit the product to a DiiA accredited test-house.
What is DALI suitable for?
DALI systems are suitable for small, medium, and large projects, spaces with multiple uses, and areas where lighting levels are likely to change.
What is the maximum length of a DALI cable?
The recommended maximum distance between any two devices on a DALI bus is 300m.
How many lamps can the DALI dimming system bring?
A standard DALI system can take up to 64 components with independent addresses. The maximum current provided by the DALI system is 250mA, which is a limitation of the DALI system.