RJ45网线每个线头的定义是什么?

RJ-45接口信号定义，以及网线连接头信号安排

以太网 10/100Base-T 接口:

Pin Name Description

1 TX+ Tranceive Data+ (发信号+)

2 TX- Tranceive Data- (发信号-)&nb sp;

3 RX+ Receive Data+ (收信号+)

4 n/c Not connected (空脚)

5 n/c Not connected (空脚)

6 RX- Receive Data- (收信号-)

7 n/c Not connected (空脚)

8 n/c Not connected (空脚)

以太网 100Base-T4 接口:

Pin Name Description

1 TX_D1+ Tranceive Data+

2 TX_D1- Tranceive Data-

3 RX_D2+ Receive Data+

4 BI_D3+ Bi-directional Data+

5 BI_D3- Bi-directional Data-

6 RX_D2- Receive Data-

7 BI_D4+ Bi-directional Data+

8 BI_D4- Bi-directional Data-

1 white/orange

2 orange/white

3 w/green

4 blue/w

5 w/blue

6 green/w

7 white/brown

8 brown/w

rj45接口采用差分传输方式，tx+、tx-是一对双脚线，扭在一起，可以减少干扰。可看看以太网标准IEEE802.3