RJ-45接口信號定義，以及網(wǎng)線連接頭信號安排

以太網(wǎng)10/100Base-T接口:
PinNameDescription
1TX+TranceiveData+(發(fā)信號+)
2TX-TranceiveData-(發(fā)信號-)&nb
3RX+ReceiveData+(收信號+)
4n/cNotconnected(空腳)
5n/cNotconnected(空腳)
6RX-ReceiveData-(收信號-)
7n/cNotconnected(空腳)
8n/cNotconnected(空腳)

以太網(wǎng)100Base-T4接口:
PinNameDescription
1TX_D1+TranceiveData+
2TX_D1-TranceiveData-
3RX_D2+ReceiveData+
4BI_D3+Bi-directionalData+
5BI_D3-Bi-directionalData-
6RX_D2-ReceiveData-
7BI_D4+Bi-directionalData+
8BI_D4-Bi-directionalData-

1white/orange
2orange/white
3w/green
4blue/w
5w/blue
6green/w
7white/brown
8brown/w

rj45接口采用差分傳輸方式，tx+、tx-是一對雙腳線，牛在一起，可以減少干擾。可看看以太網(wǎng)標準IEEE802.3