Data record `std.tia-526-7-a.apparatus.test-wavelengths`

Verified 2026-10-25 Confidence: Medium

Clause 5.2.2 of ANSI/TIA-526-7-A (2015) calls for testing premises cabling at the two nominal single-mode wavelengths, recommends a further longer wavelength where L-band DWDM traffic is planned, notes another may be needed for passive optical networks, and recommends at least two wavelengths for OTDR work so bend loss can be spotted; it states no spectral width or center-wavelength tolerance.

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-526-7-A	Licensed standard, clause 5.2.2
Data record	std.tia-526-7-a.apparatus.test-wavelengths	Verified 2026-10-25
Entry	ANSI/TIA-526-7-A	No revisions

Subject: ANSI/TIA-526-7-A (Standards)
Kind: Method fact
Source: ANSI/TIA-526-7-A, 2015 edition, clause 5.2.2, page 25, Measurement of Optical Power Loss of Installed Single-Mode Fiber Cable Plant, Adoption of IEC 61280-4-2 edition 2: Fibre-Optic Communications Subsystem Test Procedures, Part 4-2: Installed Cable Plant, Single-Mode Attenuation and Optical Return Loss Measurement, 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-526-7-a.apparatus.test-wavelengths." Fiber Optic Reference. 2026-10-25. https://www.fiberopticreference.com/data/std.tia-526-7-a.apparatus.test-wavelengths/.

Fiber Optic Reference, Data record std.tia-526-7-a.apparatus.test-wavelengths (Oct. 25, 2026), https://www.fiberopticreference.com/data/std.tia-526-7-a.apparatus.test-wavelengths/.

@misc{etr-data-std-tia-526-7-a-apparatus-test-wavelengths,
  title = {Data record std.tia-526-7-a.apparatus.test-wavelengths},
  howpublished = {\url{https://www.fiberopticreference.com/data/std.tia-526-7-a.apparatus.test-wavelengths/}},
  organization = {Fiber Optic Reference},
  publisher = {Fiber Optic Reference},
  year = {2026},
  note = {last substantive change 2026-10-25}
}

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