The communication circuit between the monitoring module and the rectifier module is shown in the figure. The optocouplers N9 and N452 provide isolation between the microprocessor D211 and the rectifier module. The N9 isolates the transmit buffers V15 and V10. The transmit buffers V15 and V10 are designed to provide the driving capability for the communication of 100 rectifier modules. The N452 is A high-gain optocoupler buffer is used to receive the signal sent by the rectifier module.
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