UTP, FTP, S/FTP? - Itt a kábeligazító - Haraszti.sk - Kábelek
Inside of an ethernet cable, what are the wires specifically used for? I know that the orange and green pair are used for pins 1,2,3,6 sending/receiving but what about pins 4,5,7,8 blue,
layer1 - What is this thread-like material on this Cat6 U/UTP cable? - Network Engineering Stack Exchange