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,
How to Make a Network Cable: 11 Steps (with Pictures) - wikiHow
UTP vs FTP cable, STP vs FTP. What is the difference between them?
UTP vs STP Cable Wiki and Guide
A Comprehensive Understanding of CFP Modules | by Emily Twain | Medium