| 摘要 |
PURPOSE: A port lighting control unit is provided to prevent a fire due to heating by rapidly grasping the fault of a fan to remove the heating. CONSTITUTION: A controller(60) forms a board cast or uni-cast request data packet and outputs data packet to a communication module(66). A transmitter(66Tx) of a communication module transmits the data packet from the controller to a slave with a broadcast method or uni-caste method. A receiver(66Rx) of the communication module transmits the received data packet to the controller. A slave state grasped by the controller is stored in a memory unit(62). A key input unit(64) includes a selection key which selects a dimming level about each slave.
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