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1A. Introduction to C-Bus
4.0 Wiring Methods
The following sections demonstrate the difference between conventional wiring and C-Bus wiring,
when installing a two-way control for four light circuits.
4.1 Conventional Wiring
Figure 5 indicates how many wires are needed to perform two-way control between two four-gang
plates. As many as 13 mains conductors need to be run between the two plates and the loads.
Figure 5 – Conventional wiring of a two-way control for four light circuits
4.2 C-Bus Wiring
Figure 6 shows how the same two-way control is wired using C-Bus (pink wiring). The control circuitry
is simpler than the conventional method. If a four or eight button switch is used instead of the two
button, the wiring remains the same. Just two conductors are required to link the C-Bus control.
Figure 6 – C-Bus wiring of a two-way control for four light circuits
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