Recorded scope and limits
Public scope overview of the optical fiber cabling and components standard. Establishes that the standard specifies performance, transmission, and test and measurement requirements for premises optical fiber cable, connectors, connecting hardware and patch cords, that it defines five polarity methods for array connectivity (A, B, C, U1 and U2), and that only Methods A, B and C support array-to-array signal polarity while all five support duplex configurations. A scope overview rather than a clause-by-clause review; it establishes no test procedure and no conformance outcome. Checked September 16, 2026.
Use the task guides below to see how this source informs a labeling decision. Check the publication scope and the edition adopted by your project before applying it. A publisher overview is not the full text of a standard, and software documentation does not prescribe a physical label format.
Read the library’s edition and applicability notes.
What this source establishes
Cited for the existence and division of the five polarity methods. No clause text is restated, and nothing here establishes that a particular installation is compliant.
Review date: 2026-09-16. This note describes the source scope; it is not a project approval.