What pins do Ethernet NIC receivers use?

In Ethernet NICs, particularly when using the TIA/EIA-568 standard for wiring, the correct set of pins that receivers use are those connected to pins 3 and 6, which corresponds to the receive data pair in 10Base-T and 100Base-T Ethernet standards.

In a standard Ethernet cable, two pairs of wires are typically used for data transmission: one pair for sending data and another for receiving. In the case of 10Base-T and 100Base-T networks, the classic color coding involves the pair with the green color scheme (pins 1-2) being used for transmission, while the pair with the orange striping (pins 3-6) is utilized for reception. This design allows for efficient and effective data communication over twisted-pair cabling, optimizing signal integrity and minimizing interference.

Thus, the option discussing pins 3 and 6 accurately reflects the wiring standard utilized by Ethernet cards to receive data efficiently.