How to wiring between parking display and parking sensor

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How to do wiring from parking led display screen to parking ultrasonic sensor

Power supply: Use the RV3 * 1.5 power cord to connect the AC220V to the switching power supply in the boot box, and the ground wire is connected to the guide screen.

Communication line connection: The connection mode is shown below:

Important Notice:
A)it requested to use rs485 debug tool to connect to the computer by using usb port and the led screen use A&B
Port

B)The display screen can be connected to the nearest detector by using rs485 board and can be setted up the linkage to  any line of the detectors
Noted:the display screen must be given an address by set up in the software