| 摘要 |
A system (A) communication unit (200) of an optical communication interface (100) uses a communication system (A) to communicate with outdoor equipment (330a, b) and indoor equipment (310a, b), and a centralized management remote control (600) uses the communication system (A) to communicate with the optical interface (100) and manages the outdoor equipment (330a, b) and the indoor equipment (310a, b) with the communication system (A). A system (B) communication unit (205b) of a communication system (B) indoor equipment (311) of a different maker uses a communication system (B) different from the communication system (A) to communicate with a system (B) communication unit (205c) of a communication system (B) outdoor equipment (301). The optical communication interface (100) of the communication system (A) and the indoor equipment (311) of the communication system (B) use an optical communication unit (202a) and an optical communication unit (202b) to exchange information with each other, respectively. The centralized management remote control (600) uses the optical interface (100) to change a set-up temperature of an air conditioner for energy saving control, and the like, i.e., to collectively control a plurality of equipment items.
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