A 48V centralized lighting system typically includes a 48V bus power supply, a bus Ethernet gateway, wired keypads, centralized lighting modules, and a compatible controller and network connection. Add a centralized lighting panel or DIN-rail enclosure, terminal blocks for field wiring, and the appropriate line, neutral, and load wiring for each circuit.

Wired keypads connect to the system’s 48V bus, which supplies power and carries RS-485 communication between the keypads and centralized lighting equipment. A bus Ethernet gateway links that keypad bus to the network and controller, allowing keypad commands to operate the lighting system.

Installers should plan separate field wiring for line, neutral, and load circuits, use terminal blocks that accommodate 22 to 12 AWG wiring, and connect wired keypads through the RS-485 bus to the Ethernet gateway. The 48V bus power supply and gateway mount in a compatible two- or five-slot centralized lighting panel or a standard DIN-rail panel with 35 mm rails, with the power supply serving the bus devices.

48V centralized lighting supports scenes by connecting wired keypads and lighting modules through a bus gateway to the system controller, allowing users to activate coordinated lighting settings from keypads. Panelized components, DIN-rail mounting, and separate terminal blocks can help installers add circuits, keypads, and modules as project needs grow.