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THVD1420:RS485 transmission and reception wiring

Part Number: THVD1420

Tool/software:

Hello.

I have a question about the wiring of THVD1420.

I want to use THDV1420 to send and receive signals from RS485.

Receive differential signals from RS485
↓
THDV1420
↓
Microcontroller USART RX IN
↓
Microcontroller USART TX OUT
↓
THDV1420
↓
Send differential signals to RS485

I tried drawing a wiring diagram, but I don't know if this wiring diagram will work properly. This time I will use two THDV1420 for receiving and transmitting, but is it okay to leave the D of the receiving THDV1420 floating? Also, I will not use the R of the transmitting THDV1420, but is it necessary to connect the 3.3V and R25 10K resistors?

I look forward to your reply.