Lights that allow wireless communication
A wireless communication and wireless technology, applied in the direction of short-distance communication services, electrical components, etc., to achieve the effect of automatic grouping
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[0126] An exemplary embodiment of a technique for intentionally modulating the load placed on the ballast 10 by the master device 12a in order to signal a pattern in the power supplied by the ballast 10 to luminaires 4 in the same luminaire 4 is now described below. Lamps 12a-d.
[0127] As discussed, fluorescent illuminators 4 typically employ several TL tubes 12a - d wired to a single ballast 10 . Figure 4 A typical wiring diagram for an instant-start (IS) ballast 10 is shown in . At each end of the TL tube 12, two pins 22 are shorted by a shunt lamp holder. Pin 22a,i at one end of a first lamp 12a in luminaire 4 is connected to ballast 10 via a first blue wire 30a, and pin 22b,1 at one end of second lamp 12b is connected via a second blue wire 30a. Wire 30a is connected to ballast 10 (and so on if there are more than two lamps in the luminaire). At the other end, the pins 22a, ii and 22b, ii (etc.) are all connected together and to the ballast 10 via the same red wire 3...
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