not to be confused with Internet over cable.
Standards: ISO/IEC 11801
| 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 |
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 | ✅️ | ✅️ | ✅️ |