IoT/Smart Lighting

Signify throws its weight behind D4i interface

A highway with LED streetlighting and solar panels
The D4i certification programme is designed to deliver standardisation in the market, drive wider adoption of IoT connectivity in lighting and aid smart city or building projects.

THE WORLD’S biggest lighting company has backed the introduction of the D4i interface standard.

Signify says it has upgraded in premium drivers to D4i, allowing customers to easily exchange different IoT nodes or sensors on luminaires.

The company, which contributed to development of the specification, has added it to its portfolio of compact Philips Xitanium Sensor Ready Xtreme LED drivers for outdoor applications. 

The D4i certification programme is designed to deliver standardisation in the market, drive wider adoption of IoT connectivity in lighting and aid smart city or building projects. 

It makes it attractive and easy for customers to switch to connected lighting or install Connect Ready luminaires with D4i certified drivers now, and upgrade to connectivity later. 

By the end of June, Signify will also upgrade its non-isolated Philips Xitanium Dimmable Sensor Ready drivers for indoor applications to the new D4i standard, to facilitate the adoption of energy-saving technologies and drive standardisation.

Launched by the Digital Illumination Interface Alliance (DiiA), the standard’s specifications and requirements cover critical features including digital communication, data reporting and power requirements. 

Qualification of this certification demonstrates plug-and-play interoperability of luminaires, sensors and communication nodes. 

Products with the D4i standard will enable smart, future-proof LED luminaires with IoT connectivity.

Paul Sloekers, product manager for outdoor LED drivers at Signify, told Lux: ‘Years ago, we pioneered with Xitanium Sensor Ready Xtreme LED drivers and we’re very proud of now having a broad D4i driver portfolio in place. 

‘The D4i standard is key for our customers as it makes it easier than ever before to adopt connectivity within smart cities.’

 In addition to being relevant for outdoor drivers, D4i certification is also relevant for indoor drivers. 

It brings standardisation to intra-luminaire Dali and defines how data relevant for connected lighting networks is stored and communicated. 

D4i extends the existing Dali-2 programme by adding a standard for power supply to control devices such as sensors (Dali part 250). 

It also standardises how drivers store and report data, including luminaire info (Dali part 251), energy metering (Dali part 252) and diagnostics (Dali part 253). 

This standard enables luminaire manufacturers to create luminaires that can be integrated in connected lighting systems.

‘The new D4i standard is an important step in the journey of connected lighting,’ said Simone van Leeuwen, product manager LED Linear Drivers at Signify.

‘Standardisation helps to ensure that different elements of a system, such as luminaires, sensors and controls, work together seamlessly. 

As a result, more end-users can start to enjoy the benefits of connected lighting.’