wires between all ballasts and controls
WireWall switch with raise, lower, ON, OFF capability or a multi buffon scene
controller
Adapter-Translates RS232 to DALI lighting bus, For larger installations using multiple DALI lighting buses other standard IT components may be used.
Local wall controls can be added by connecting to the nearest lighting network
Daylight and occupancy sensors can be directly connected to lighting bus Benefits of digital lighting networks include:Energy savings. Digital ballasts can be dimmed or switched either on a scheduled basis according to time of day (such as during peak demand periods) or in response to variable conditions such as quantity of available daylight. “As energy costs continue to rise, intelligent use of available daylight and increased monitoring of lighting system usage will be key to avoid wasting energy,” says Paul Ratliff, product marketing manager at OSRAM SYLVANIA’s Electronic Control Systems division. “DALI protocol provides the basis for smarter, more cost-effective lighting systems.”Worker satisfaction. A study completed by the Light Right Consortium found that occupants are more satisfied and motivated when they are able to set light levels to their own preferences; a recent Watt Stopper-funded study found that a significant portion of the market would pay a premium for this capability.Flexibility. The lights can be dimmed to tune light levels to changing space needs, without the need for rewiring, a significant advantage over 0-10V analog dimming systems.“DALI will provide greater flexibility and eliminate the need for rewiring if building layouts change,” says Stuart Berjansky, dimming product manager for Advance Transformer Co.Maintenance. The central computer can collect information from the ballasts as well as transmit it, turning the central point of control into a monitoring station that recognizes anomalies (such as lamp failures) and signals a maintenance need via alarms.Demand for digital lighting networks is currently inhibited by several factors, including:Compatibility. To set up a working digital lighting network, all lighting controls connected to the network must be DALI-compatible.“Development and introduction of DALI ballasts and controls have been slow in Europe and