These pairs of lines are made of copper.
Described in EIA/TIA-568. Unsuitable for speeds above 16 Mbit/s. It was used for 10Base-T Ethernet. Now it is mainly used for telephone cables.
Defined in ANSI/TIA/EIA-568-A. Certified for 100MHz meaning that can be used for 1000Base-T Ethernet with the maximum segment length of 100m. Most cables have 4 pairs. Each pair is a balanced line, meaning that each conductor has equal impedance along its length, to the ground and to other conductors. A differential receiver will remove the common-mode interference, thus reducing the noise. Bending radius should be no less than 4 outside diameters of the cable. Propagation delay 5 ns/m.
CAT6 can be used up to 250MHz meaning that for 10GBASE-T the length is reduced to 55m. CAT6a can be used for 500MHz and the length for 10GBASE-T is 100m. The bending radius should not be less than 4 times the outside diameter of the cable. In the case of a patch panel and a wall jack in between the devices, this distance is 90m, leaving the room for two 5-meter patch cords on each end. The same is true for CAT5 and CAT5e cabling.
No CAT6e standard exists!
| Pin | Color | ||||
| 1 | white/green | ||||
| 2 | green | ||||
| 3 | white/orange | ||||
| 4 | blue | ||||
| 5 | white/blue | ||||
| 6 | orange | ||||
| 7 | white/brown | ||||
| 8 | brown |
| Pin | Color | ||||
| 1 | white/orange | ||||
| 2 | orange | ||||
| 3 | white/green | ||||
| 4 | blue | ||||
| 5 | white/blue | ||||
| 6 | green | ||||
| 7 | white/brown | ||||
| 8 | brown |