EN 61755-3-6:2006/A1:2012

Fibre optic connector optical interfaces - Part 3-6: Optical interface - 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-PC composite ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibre

Optische Schnittstellen von Lichtwellenleiter-Steckverbindern - Teil 3-6: Optische Schnittstelle - Zylindrische, 8 Grad angeschrägte PC-Ferrulen mit 2,5 mm und 1,25 mm Durchmesser für Einmodenfaser, mit Cu-Ni-Legierung als Material für die Faserfassung

Interfaces optiques de connecteurs pour fibres optiques - Partie 3-6: Interfaces optiques - Férules composites cylindriques PC-orientées 8 degrés de diamètre 2,5 mm et 1,25 mm, utilisant un alliage Cu-Ni comme matériau entourant la fibre, fibres unimodales

Optični vmesniki za optične konektorje - 3-6. del: Optični vmesnik - Cilindrične polikarbonatne kompozitne tulke s premerom 2,5 mm in 1,25 mm, s kotom 8 stopinj, ki uporabljajo zlitino Cu-Ni za obod vlakna, enorodno vlakno (IEC 61755-3-6:2006/A1:2012)

Ta del standarda IEC 61755 določa dimenzijske omejitve in materialne lastnosti optičnega vmesnika s cilindrično kompozitno tulko s premerom 2,5 mm in 1,25 mm za izpolnjevanje posebnih zahtev za medsebojno povezovanje vlaken APC. Kompozitna tulka ima na območju stika na končnem delu ter na območju stika tulke z obojko različne materiale. Materiali za posamezno območje so cirkonij (ZrO2) za območje stika tulke z obojko ter zlitina Cu-Ni za območje stika na končnem delu. Tulke, izdelane iz materialov, ki so določeni v tem dokumentu, so primerne za uporabo v kategorijah C, U in O, kot je določeno v standardu IEC 61753-1.

General Information

• Status: Published
• Publication Date: 10-May-2012
• Withdrawal Date: 28-Mar-2015
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: CLC/TC 86BXA - Fibre optic interconnect, passive and connectorised components
• Drafting Committee: IEC/SC 86B - IEC_SC_86B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 11-May-2012
• Completion Date: 11-May-2012
• Ref Project: SIST EN 61755-3-6:2007/A1:2012 - Fibre optic connector optical interfaces - Part 3-6: Optical interface - 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-PC composite ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibre (IEC 61755-3-6:2006/A1:2012)

Relations

• Amends: EN 61755-3-6:2006 - Fibre optic connector optical interfaces - Part 3-6: Optical interface - 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-PC composite ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibre
• Effective Date: 29-Jan-2023

Overview

EN 61755-3-6:2006/A1:2012 (IEC 61755-3-6:2006/A1:2012) is a European amendment that defines the optical interface for fibre optic connectors using 2.5 mm and 1.25 mm cylindrical, 8° angled-PC (APC) composite ferrules where the ferrule surround is a Cu‑Ni alloy and the fibre type is single‑mode. This amendment (A1) updates the original EN/IEC text and sets clarified parameter limits for optical interface grades used in connector specification and testing.

Key topics and technical requirements

• Scope: Optical interface specification for single‑mode connectors with composite ferrules (Cu‑Ni alloy) and an 8° angled-PC end-face geometry.
• Ferrule diameters covered: 2.5 mm and 1.25 mm cylindrical ferrules (commonly used for SC/FC and LC style connectors respectively).
• Angled‑PC (APC): Specifies the angled physical contact geometry (8°) important for return loss characteristics in single‑mode systems.
• Material: Composite ferrule design using Cu‑Ni alloy as the fibre‑surrounding material - relevant for mechanical, thermal and polishing behavior.
• Optical interface parameter grades: Uses Grades A, B, C, D to classify interface tolerances and performance. Amendment A1 replaces the row C entry in Tables 1 and 2 so that parameter C has a minimum of 0 µm and maximum of 70 µm for all grades (A–D) for both 2.5 mm and 1.25 mm APC ferrules.
• Standards status: Approved by CENELEC as a harmonized European version of the IEC standard. Contains implementation and withdrawal target dates per the foreword.

Applications and users

Who uses EN 61755-3-6/A1:

• Connector and ferrule manufacturers specifying tolerances, materials and end‑face geometry for production and quality control.
• Test laboratories and QA teams validating optical interface parameters and interoperability.
• System designers and integrators in telecom, datacom and data centre networks who require reliable single‑mode APC connectors for low back‑reflection.
• Procurement and compliance officers ensuring purchased connectors meet recognized IEC/CENELEC optical interface requirements.

Practical benefits:

• Consistent interoperability between connectors from different vendors.
• Clear acceptance criteria for manufacturing and inspection (optical interface parameter grading).
• Improved return loss performance and repeatable mating behavior for single‑mode APC connectors.

Related standards

• IEC/EN 61755 series (other parts) - covers broader family of fibre optic connector optical interfaces.
• National adoptions and translations as published by CENELEC members.

Keywords: EN 61755-3-6, IEC 61755-3-6, angled‑PC, APC ferrule, Cu‑Ni alloy ferrule, 2.5 mm ferrule, 1.25 mm ferrule, single‑mode fibre, optical interface parameters, fibre optic connector standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2012
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VWRSLQMNLXSRUDEOMDMR]OLWLQR&X1L]DRERGYODNQDHQRURGQRYODNQR,(&
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Fibre optic connector optical interfaces - Part 3-6: Optical interface - 2,5 mm and 1,25
mm diameter cylindrical 8 degrees angled-PC composite ferrule using Cu-Ni-alloy as
fibre surrounding material, single mode fibre (IEC 61755-3-6:2006/A1:2012)
Optische Schnittstellen von Lichtwellenleiter-Steckverbindern - Teil 3-6: Optische
Schnittstelle - Zylindrische, 8 Grad angeschrägte PC-Ferrulen mit 2,5 mm und 1,25 mm
Durchmesser für Einmodenfaser, mit Cu-Ni-Legierung als Material für die Faserfassung
(IEC 61755-3-6:2006/A1:2012)
Interfaces optiques de connecteurs pour fibres optiques - Partie 3-6: Interfaces optiques
- Férules composites cylindriques PC-orientées 8 degrés de diamètre 2,5 mm et 1,25
mm, utilisant un alliage Cu-Ni comme matériau entourant la fibre, fibres unimodales (CEI
61755-3-6:2006/A1:2012)
Ta slovenski standard je istoveten z: EN 61755-3-6:2006/A1:2012
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61755-3-6/A1
NORME EUROPÉENNE
May 2012
EUROPÄISCHE NORM
ICS 33.180.20
English version
Fibre optic connector optical interfaces -
Part 3-6: Optical interface -
2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-PC composite
ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibre
(IEC 61755-3-6:2006/A1:2012)
Interfaces optiques de connecteurs pour Optische Schnittstellen von
fibres optiques - Lichtwellenleiter-Steckverbindern -
Partie 3-6: Interfaces optiques - Teil 3-6: Optische Schnittstelle -
Férules composites cylindriques PC- Zylindrische, 8 Grad angeschrägte PC-
orientées 8 degrés de diamètre 2,5 mm et Ferrulen mit 2,5 mm und 1,25 mm
1,25 mm, utilisant un alliage Cu-Ni comme Durchmesser für Einmodenfaser, mit Cu-
matériau entourant la fibre, fibres Ni-Legierung als Material für die
unimodales Faserfassung
(CEI 61755-3-6:2006/A1:2012) (IEC 61755-3-6:2006/A1:2012)

This amendment A1 modifies the European Standard EN 61755-3-6:2006; it was approved by CENELEC on
2012-03-29. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61755-3-6:2006/A1:2012 E
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