
230 V Lighting Design Guide
Doc. 4859C | crestron.com
5
Lighting and Automation System Design Types
There are many ways in which a lighting control system can be organized. Construction type, client requirements,
architectural restrictions, and many other factors determine the best solution. In general, retaining control design
flexibility produces the most reliable results.
Centralized Systems
A centralized system is one in which all the high-voltage circuits are terminated within a Crestron home automation
enclosure and operate under a central control system. In a centralized design, the high-voltage lighting, fans,
motors, and switch circuits are individually wired directly to the control modules in the Crestron home automation
enclosure. The modules are controlled by low voltage or RF user interfaces in the living area. This simplifies the
high-voltage wiring and creates a flexible and efficient design.
A central processor, connected via a local area network to the lighting modules and the user interfaces, is
dedicated to lighting, fans, motors, HVAC, and security. Other processors that are dedicated to other home control
systems can communicate via Ethernet, RS-232, or RS-422 to the lighting processor and eliminate the need for
additional controls for other home systems. Separating home safety and life support systems from information and
entertainment systems provides a flexible design solution and a fully integrated home control.
Centralized System Example
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