Feature: Lighting
available to the industry and the public. The newly-announced DALI+
specification (and DALI’s support for wireless gateways) builds on the proven capabilities and benefits of DALI, whilst maintaining the focus on certification and interoperability. The DALI Alliance is developing tests for DALI+ with Thread, which will be the first certification program for interoperable DALI+ devices; certified products and solutions are expected to be available soon. With its support for wireless
Figure 3: Application controller with wireless and wired interfaces
(one of which is a D4i luminaire), and a multi-subnet application controller provides interfaces to two further wired subnets. Tere are also non-DALI+ devices
shown in Figure 4, such as the door lock in the second Tread network, showing that Tread can also support devices not controlled by DALI commands. Te system in Figure 4 could be
connected to a larger building-wide IP
network, containing computers and other devices.
Putting it all into practice DALI is a well-established, proven technology backed by a rigorous program for testing and certifying products, all managed by the DALI Alliance. This includes a centralised online database of certified and registered products that is openly
connectivity and IP-based networking, DALI+ creates new opportunities for lighting control systems, with more flexibility and simpler interfacing with IT and building management systems. By enabling the development of
wired, wireless and IP-based systems in any combination, DALI+ increases choice, flexibility and creative freedom for lighting designers and specifiers. Whether it’s simple control of a few light fixtures, or complicated sensor-rich building-wide lighting networks, DALI’s new capabilities provide proven, reliable solutions.
Figure 4: DALI+ system, with multiple Thread networks and wired devices
32 February 2022
www.electronicsworld.co.uk
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