Data record `std.tia-568-1-e.structure.hierarchical-star`

Verified 2026-10-25 Confidence: High

Clause 5.2.1.1 of ANSI/TIA-568.1-E (2020) requires a hierarchical star and caps both the number of cross-connect levels in the backbone and the number of cross-connect facilities a signal may pass between two horizontal cross-connects; an accompanying note explains that the cap limits signal degradation and simplifies moves.

Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.

Provenance: the chain from source to entry.
Step	Item	Detail
Source	ANSI/TIA-568.1-E	Licensed standard, clause 5.2.1.1
Data record	std.tia-568-1-e.structure.hierarchical-star	Verified 2026-10-25
Entry	ANSI/TIA-568.1-E	No revisions

Subject: ANSI/TIA-568.1-E (Standards)
Kind: Standard scope
Source: ANSI/TIA-568.1-E, 2020 edition, clause 5.2.1.1, page 26, Commercial Building Telecommunications Infrastructure Standard, TIA.

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-25	created
2026-10-25	review_status unreviewed -> software_reviewed

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record std.tia-568-1-e.structure.hierarchical-star." Fiber Optic Reference. 2026-10-25. https://www.fiberopticreference.com/data/std.tia-568-1-e.structure.hierarchical-star/.

Fiber Optic Reference, Data record std.tia-568-1-e.structure.hierarchical-star (Oct. 25, 2026), https://www.fiberopticreference.com/data/std.tia-568-1-e.structure.hierarchical-star/.

@misc{etr-data-std-tia-568-1-e-structure-hierarchical-star,
  title = {Data record std.tia-568-1-e.structure.hierarchical-star},
  howpublished = {\url{https://www.fiberopticreference.com/data/std.tia-568-1-e.structure.hierarchical-star/}},
  organization = {Fiber Optic Reference},
  publisher = {Fiber Optic Reference},
  year = {2026},
  note = {last substantive change 2026-10-25}
}

{{cite web |title=Data record std.tia-568-1-e.structure.hierarchical-star |website=Fiber Optic Reference |publisher=Fiber Optic Reference |url=https://www.fiberopticreference.com/data/std.tia-568-1-e.structure.hierarchical-star/ |date=2026-10-25 |access-date=}}