IEC 61280-4-1-2019 cor2-2022 PDF

Full title and description

IEC 61280-4-1:2019/COR2:2022 — Corrigendum 2 to "Fibre-optic communication subsystem test procedures — Part 4-1: Installed cabling plant — Multimode attenuation measurement". This corrigendum is a one-page correction to the third edition (2019) that consolidates and corrects editorial and technical items in the published standard.

Abstract

This corrigendum (Corrigendum 2, 2022) issues small but important corrections to IEC 61280-4-1:2019 (Edition 3.0). It clarifies application details and corrects text and figures where needed to ensure consistent interpretation of the multimode attenuation measurement procedures (including launch conditions and reference-cord handling) for installed cabling plant. The corrigendum is published in English and French and is provided as a consolidated one‑page correction to the 2019 edition.

General information

• Status: Published (corrigendum to IEC 61280-4-1:2019)
• Publication date: 8 December 2022
• Publisher: International Electrotechnical Commission (IEC)
• ICS / categories: 33.180.01 — Fibre optic systems in general
• Edition / version: Edition 3.0 (IEC 61280-4-1:2019; corrigendum issued 2022)
• Number of pages: 1 (corrigendum document)

Scope

Applies to measurement of attenuation of installed multimode optical‑fibre cabling plants (connectors, adapters, splices and passive devices) using multimode fibres (A1/OM categories). The main document (IEC 61280-4-1:2019) defines measurement methods, launch conditions (encircled flux), equipment-cord and reference‑cord handling, and guidance on OTDR and insertion‑loss techniques; this corrigendum corrects and clarifies specific text and figures in that context.

Key topics and requirements

• Clarifications to multimode attenuation measurement procedures for installed cabling plants.
• Corrections affecting launch conditions and encircled flux-related statements (ensuring consistent source-launch requirements for multimode fibre testing).
• Adjustments and clarifications to reference/test‑cord treatment and acceptance‑figure calculations.
• Guidance refinement for measurement methods (insertion‑loss with reference/test cords and OTDR use for multimode links).
• Notes on bend‑insensitive multimode fibre and updated measurement‑uncertainty considerations consistent with the 2019 edition.

Typical use and users

Used by fibre‑optic installers, site acceptance testers, test-laboratories, manufacturers of test equipment, data‑center commissioning teams, network designers and standards/quality personnel who require consistent procedures for measuring attenuation of installed multimode cabling plants or who need the corrected text for contract/test reports and calibration procedures.

Related standards

Related publications and reference documents include other parts of the IEC 61280 series (test procedures for optical communication subsystems), IEC 61280-4-2 (single‑mode attenuation and optical return loss measurements for installed cable plant), IEC 60793 (fibre category definitions), IEC TR 62614 series (encircled flux guidance), and IEC 61300 series (fiber optic test and measurement procedures).

Keywords

multimode attenuation, installed cabling plant, fibre‑optic test procedures, encircled flux, reference test cord, insertion loss, OTDR guidance, corrigendum, IEC 61280-4-1

FAQ

Q: What is this standard?

A: It is Corrigendum 2 (2022) to IEC 61280-4-1:2019, the international test‑procedure document that specifies how to measure attenuation on installed multimode optical‑fibre cabling plants.

Q: What does it cover?

A: The corrigendum supplies corrections and clarifications to the 2019 third edition text and figures so that measurement procedures (launch conditions, reference/test‑cord handling, acceptance figures and related guidance) are unambiguous and consistent in practice.

Q: Who typically uses it?

A: Fibre installers, test and commissioning engineers, test‑equipment vendors, laboratories and anyone performing or certifying attenuation measurements on installed multimode fibre cabling.

Q: Is it current or superseded?

A: The corrigendum was published on 8 December 2022 as a current correction to IEC 61280-4-1:2019 (Edition 3.0). It should be used together with the 2019 edition; consult national/adopted versions for any further amendments. The IEC entry lists a stability date for the publication cycle (reference information in IEC catalogue).

Q: Is it part of a series?

A: Yes — IEC 61280 is a multipart series covering fibre‑optic communication subsystem test procedures; Part 4 covers installed cabling‑plant attenuation measurements (with separate parts for multimode and single‑mode measurements).

Q: What are the key keywords?

A: Multimode attenuation, installed cabling plant, encircled flux, reference cord, insertion loss, OTDR, corr. 2022, IEC 61280-4-1.