| 摘要 |
PURPOSE:To incorporate centralized monitoring control and enhance the convenience by furnishing a terminal unit which receives the power on/off data sent from an operation board, and upon judging it, performs on/off control of the lighting power supplied to lighting fixtures. CONSTITUTION:When on/off control of dimmed lighting fixtures 4 is commanded from switches on an operation board 1, it sends a transmission signal to an on/off terminal unit 6 through the action of a processor. The on/off terminal unit 6 receives this on/off control signal through an internal transmission I/F and compares the address in the transmission signal with its own terminal unit address at a signal processing part. In case the two are identical, the sent data is analyzed and on/off control data is obtained. On the basis of this on/off control data, on/off control part in the on/off terminal unit turns on or off the power led in from the power line 7, and in the case of on, the source voltage is supplied to each dimmed lighting fixture via a power supply line 8. |
