Table of Contents

Cabling

not to be confused with Internet over cable.

Ethernet

Standards: ISO/IEC 11801

Copper cable categories:

Category MHz max. link speed comments
5/5e 100 5G Most Cat.5 cables meet 5e specs, most 5/5e cables are unshielded
6 250 10G (55m)
6A 500
7 600 10G (100m)
8 (TIA) 2000 40G (30m), 10G (100m) not ratified by IEC
8.1 (ISO) 2000 40G
8.2 (ISO) 2000 40G not backwards compatible with RJ45

Shielding:

see also: Wikipedia on cable shielding

IEC 11801 designation Cable shielding Pair shielding (foil)
Foil Braiding
U/UTP ❌️ ❌️ ❌️
U/FTP ❌️ ❌️ ✅️
F/UTP ✅️ ❌️ ❌️
S/UTP ❌️ ✅️ ❌️
SF/UTP ✅️ ✅️ ❌️
F/FTP ✅️ ❌️ ✅️
S/FTP ❌️ ✅️ ✅️
SF/FTP ✅️ ✅️ ✅️