Overview
IEC TR 63367:2021 is an IEC Technical Report that summarises the results of a round‑robin study on connector end‑face scratch recognition and verification by automated microscopes. Prepared by IEC TC 86B (Fibre optic interconnecting devices and passive components), Edition 1.0 (2021‑11), the report evaluates how state‑of‑the‑art automated inspection systems perform when assessed against the inspection criteria of IEC 61300‑3‑35:2015. Primary goals were to quantify variability (repeatability and reproducibility), assess system‑to‑system differences in reported scratches, and provide recommendations to improve inspection consistency.
Key Topics and Requirements
- Round‑robin procedure: Defined measurement workflow, participant roles and data reporting formats to ensure comparable results across laboratories and vendors.
- Specimen preparation: Test specimens include multimode and single‑mode single‑ and multi‑fibre end faces; specimen preparation and categorization are documented to control sources of variation.
- Automated microscope assessment: Focus on automated recognition of scratches and verification against IEC 61300‑3‑35 rules for out‑of‑specification defects.
- Performance metrics: Evaluation centers on repeatability (same system/operator) and reproducibility (different systems/operators), plus counts of out‑of‑specification scratches reported per specimen and per zone.
- Annexes and data: Includes an informative measurement procedure (Annex A), specimen geometry and optical performance data (Annex B), and complete reported scratch results (Annex C).
- Conclusions and recommendations: Observations on system performance and practical recommendations to improve fibre optic inspection system repeatability and reproducibility.
Practical Applications and Who Uses This Standard
IEC TR 63367:2021 is valuable for organizations and roles involved in fibre‑optic quality assurance and test‑equipment development:
- Manufacturers of connectors, adapters and passive optical components - to validate inspection workflows and supplier qualification.
- Test laboratories and certification bodies - to benchmark automated microscopes and establish inter‑lab consistency.
- Inspection equipment vendors - to improve algorithms for scratch recognition, reporting and calibration.
- Network integrators, datacenter operators and telecoms - to understand limitations and best practices for automated end‑face inspection.
- Standards developers and researchers - to identify items for further study and harmonize inspection criteria.
Related Standards
- IEC 61300‑3‑35:2015 - Fibre optic connector end‑face inspection criteria (primary normative reference used in the round robin).
- Other IEC TC 86 publications covering connector geometry, contamination and test methods.
For the full text and official data tables/figures, obtain IEC TR 63367:2021 from the IEC Webstore (webstore.iec.ch).