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IT Support & Hardware · Intermediate

ANSI/TIA-568 Cabling Standard

The North American standard for commercial building telecommunications cabling.

Definition

TIA-568 defines horizontal and backbone cabling, cable categories, connectors, the T568A/T568B pinouts, and performance testing. Horizontal links are limited to 90 m permanent link plus patch cords for a 100 m channel. Related standards include TIA-569 (pathways and spaces), TIA-606 (labeling and administration), and TIA-607 (bonding and grounding).

Example

Install Cat 6A horizontal runs under 90 m from the telecom room to each work area outlet.

Exam tip

Know the 90 m permanent link and 100 m channel limits for twisted pair.

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