| 摘要 |
PROBLEM TO BE SOLVED: To reduce initial facility investment and to easily add an additional function. SOLUTION: This switch device 11 to be embedded in and installed on a wall surface 12 is provided with an operation part 31 and a socket 33. A load is controlled by the operation part 31 in the state where a wireless adapter 44 is not mounted to the socket 33. When the wireless adapter 44 is mounted to the socket 33, transmission/reception are executed with an external wireless apparatus and control of the load and confirmation of the state is enabled by using the external wireless apparatus. Since the wireless adapter 44 can be connected to the socket 33 as required, initial facility investment can be reduced and a high function can easily be added as compared with a structure where a reception circuit is fixedly mounted. Since the socket 33 is opened downward and a plug 45 of the wireless adapter 44 is connected in a form without being exposed to the outside, intrusion and adhesion of dust into/to a part of a terminal of the socket 33 can be restrained and the wireless adapter 44 can surely be connected to the socket 33. COPYRIGHT: (C)2006,JPO&NCIPI
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