Compatible with the future

With “P2C – Prepare to Connect” and “R2C – Ready to Connect”, WE-EF offers two innovative solutions that facilitate the integration of WE-EF street and area lighting luminaires into a light management system.

When planning a light management system for roads, paths, promenades and squares, many questions have to be answered. Which parameters should provide the input? Should the light be time-, weather- or presence-dependent? Is the traffic density decisive for the illuminance to be achieved, or would a combination of several influencing variables be of interest? Is it controlled centrally or decentrally? Wired or wireless? It is not always possible to answer all these questions when selecting luminaires for the system. Sometimes – for example, for budget reasons or changed traffic conditions – a light management system is not implemented until the luminaires have been in operation for a while.

“P2C – Prepare to Connect” and “R2C – Ready to Connect” from WE-EF offer great freedom in deciding when to install new luminaires as well as apply retrofit solutions. Both solutions are oriented to the Zhaga standard. Zhaga Book 18 describes an interface between an exterior luminaire and a sensor and communication module that sits on the outside of the housing. First, the standard enables luminaires and sensor/communication modules to be combined independently of the manufacturer. Second, the luminaires can be prepared and the modules retrofitted at a later time.

This is precisely what WE-EF implements for P2C and R2C, i.e., the luminaires integrate the interface under an opening in the housing. If no sensor/communication module is fitted, the opening will be securely closed with a protective cap (protection class IPX6). There are luminaires where the receptacle is on top of the housing (for example, for daylight sensors), and versions where the sensor/communication module can be inserted in the bottom (for example, for presence sensors).

WE-EF luminaires with P2C are precursors of R2C solutions. They are designed in such a way that they contain standard control gear, but can accommodate the equipment needed for a lighting management system without technical adaptations (drill holes etc.) on the luminaire housing. The IPX6-protected and standardised interface (Zhaga Book18) is pre-installed on the P2C luminaires and features a robust protective cap.

When a decision in favour of a future light management system is made, the ‘intelligent’ LED driver needed with communication interface and power supply for the controller/sensor simply needs to be installed and connected.

WE-EF luminaires with R2C have all the necessary equipment and interfaces for integration into a light management system. DALI LED drivers with additional power supply (24V DC) are prerequisites for R2C. In addition, there is an IPX6-protected interface that is pre-wired and fitted with a robust protective cap. Once a decision has been made to implement a specific light management system, a controller/sensor can simply be connected to the standardised interface via a bayonet fitting.