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Networking Fundamentals · Foundational

TIA/EIA-568 Standard

The TIA standard family for commercial building telecommunications cabling, defining cable categories, distances, pinouts and installation practices.

Definition

ANSI/TIA-568 specifies the T568A and T568B pin assignments, 90 m permanent link plus 10 m of patch cords, testing requirements and topology for structured cabling. It is published as a set of parts, such as 568.0 (generic), 568.1 (commercial), 568.2 (copper) and 568.3 (fiber).

Example

An installer certifies a cabling plant to TIA-568 Cat 6a channel requirements.

Exam tip

The 100 m channel = 90 m horizontal plus 10 m total patch cords.

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