Indoor unit communication circuit
Source: InternetPublisher:黄土马家 Keywords: Communication circuit microprocessor CPU Updated: 2021/07/27
The communication circuit of the indoor unit , which is the information channel between the indoor unit and the outdoor unit microprocessor . CPU ⑨ pin
outputs control information and transmits it to the microprocessor of the outdoor unit through the optocoupler. CPU ③ pin receives the signal from the optocoupler , which is the
working status signal of the outdoor unit microprocessor .
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