What is the standard color-coding used for copper pairs in U.S. data cabling?

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Multiple Choice

What is the standard color-coding used for copper pairs in U.S. data cabling?

The standard color-coding for copper data-cabling pairs in the U.S. uses four pairs: white/orange with orange, white/green with green, white/blue with blue, and white/brown with brown. This is the color scheme defined by the TIA/EIA-568 standards and is what you see in Cat5/5e/6 cables and RJ-45 terminations, ensuring consistent identification of each twisted pair across jacks, patch panels, and equipment. The option with Red/Blue and Green/Yellow pairs isn’t the established Ethernet data-pair scheme, and there is indeed a standard, not none.

The standard color-coding for copper data-cabling pairs in the U.S. uses four pairs: white/orange with orange, white/green with green, white/blue with blue, and white/brown with brown. This is the color scheme defined by the TIA/EIA-568 standards and is what you see in Cat5/5e/6 cables and RJ-45 terminations, ensuring consistent identification of each twisted pair across jacks, patch panels, and equipment. The option with Red/Blue and Green/Yellow pairs isn’t the established Ethernet data-pair scheme, and there is indeed a standard, not none.

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