Standards for terminating of RJ45 connectors.
When network devices have being connected some cables are used terminated by RJ 45 connectors. All cables used in building of Structured Cabling Systems no matter of construction or category have four twisted pair colored in different way.
1 pair white/blue-blue;
2 pair white/orange-orange;
3 pair white/green-green;
4 pair white/brown-brown;
Incoming search terms:
T586b, rj45 standard b, .Design of Structured Cabling Systems
Categories/Classes in SCS
1.Cooper phisical layer– shielded and unshielded.
- Category 3/Class “C”
- Category 5е/Class “D+”
- Category 6/Class “E”
- Category 7/Class “F”
TIA and ISO comaprison of frequences, categories and classes are shown in the next tabel: Tabel 1.
| Tabel 1: TIA and ISO clasification according to frequency bandwidth | ||||
|---|---|---|---|---|
| Frequency Bandwidth | TIA (Components) | TIA (Cabling) | ISO (Components) | ISO (Cabling) |
| 1 – 100 MHz | Category 5e | Category 5e | Category 5e | Class D |
| 1 – 250 MHz | Category 6 | Category 6 | Category 6 | Class E |
| 1 – 500 MHz | Category 6A | Category 6A | Category 6A | Class EA |
| 1 – 600 MHz | n/s | n/s | Category 7 | Class F |
| 1 – 1,000 MHz | n/s | n/s | Category 7A | Class FA |