sequential (87) RJ45 (Protocol) (Port A and Port B)

https://wodewangzhishime.blogspot.com/2023/08/blog-post.html?m=1

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Ref: https://kamchihau.blogspot.com/2022/08/httpskamchihau_4.html?m=1

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John: See the 1st picture. Ther're 2 way of connection of RJ45. Both ways are OK. Let me explain the 2nd picture. When Port A is being input, Port B is with the status of outputing.

Me: OK.

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John: See the 3rd picture. When Port B is being input, Port A is with the status of outputing.

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John: I explain the 4th picture. When Port D is outputing, Port C is with the status of being input.

Me:OK.

John: See the 5th picture. When Port C is outputing, Port D is with the status of being input.