Category 6 cable

Cat 6 - Category - 6, (ANSI/TIA/EIA-568-B.2-1) A cable standard for Fast Ethernet and other interconnect that is backward compatible with Category 5 cable, Cat-5e and Cat-3. Cat-6 features more stringent specifications for crosstalk and system noise. The cable standard is suitable for 10BASE-T / 100BASE-TX and 1000BASE-TX (Gigabit Ethernet) connections.

The cable contains four twisted copper wire pairs, just like earlier copper cable standards. When used as a patch cable, Cat-6 is normally terminated in RJ-45 electrical connectors. If components of the various cable standards are intermixed, the performance of the signal path will be limited to that of the lowest category.

RJ-45 Wiring (EIA/TIA-568A)

Pin	Pair	Wire	Color
1	3	1	white/green
2	3	2	green/white
3	2	1	white/orange
4	1	2	blue/white
5	1	1	white/blue
6	2	2	orange/white
7	4	1	white/brown
8	4	2	brown/white

RJ-45 Wiring (EIA/TIA-568B)

Pin	Pair	Wire	Color
1	2	1	white/orange
2	2	2	orange/white
3	3	1	white/green
4	1	2	blue/white
5	1	1	white/blue
6	3	2	green/white
7	4	1	white/brown
8	4	2	brown/white

See also

• computer network
• Ethernet
• RJ-45
• 25-pair color code