Hi!

Is it enough to use ETH-TRD1 +, ETH-TRD1-, ETH-TRD2 +, ETH-TRD2- to use 100Mbit Ethernet?
What to do with the other four contacts ETH-TRD3 +, ETH-TRD3-, ETH-TRD4 +, ETH-TRD4-?