T568B is the most common RJ45 Ethernet wiring standard in North American commercial and residential installations with white-orange on pins 1-2.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | TX+ | Transmit positive white-orange | BUS |
| 2 | TX- | Transmit negative orange | BUS |
| 3 | RX+ | Receive positive white-green | BUS |
| 4 | Bi_DC+ | Bidirectional D+ blue | BUS |
| 5 | Bi_DC- | Bidirectional D- white-blue | BUS |
| 6 | RX- | Receive negative green | BUS |
| 7 | Bi_DD+ | Bidirectional D+ white-brown | BUS |
| 8 | Bi_DD- | Bidirectional D- brown | BUS |
T568B is the most common RJ45 Ethernet wiring standard in North American commercial and residential installations with white-orange on pins 1-2.