The TIA structured cabling standard assumes patch(5m)+run(90m)+patch(5m): * https://www.youtube.com/watch?v=kNa_IdfivKs&t=11m48s https://www.youtube.com/watch?

The TIA structured cabling standard assumes patch(5m)+run(90m)+patch(5m): * https://www.youtube.com/watch?v=kNa_IdfivKs&t=11m48s https://www.youtube.com/watch?v=kNa_IdfivKs&t=11m48s * https://www.truecable.com/blogs/cable-academy/maximum-ethernet-cable-length https://www.truecable.com/blogs/cable-academy/maximum-ethern... With the ISO standard the length is strictly informative, and the length of a cable/run doesn't matter as long as the signal characteristics are good: * https://www.youtube.com/watch?v=kNa_IdfivKs&t=12m32s https://www.youtube.com/watch?v=kNa_IdfivKs&t=12m32s