EUROPEAN STANDARD EN IEC 61755-3-1 NORMEEUROPEENNE EUROPAISCHE NORM May 2024 ICS 33.180.20 Supersedes EN 61755-3-1:2009 English Version Fibre optic interconnecting devices and passive components Connector optical interfaces - Part 3-1: Connector parameters of dispersion unshifted single-mode physically contacting fibres Non-angled 2,5 mm and 1,25 mm diameter cylindrical full zirconia ferrules (IEC 61755-3-1:2024) Dispositifs d'interconnexion et composants passifs Lichtwellenleiter-Verbindungselemente und passive fibroniques - Interfaces optiques de connecteurs - Partie 3-1 Bauelemente-Optische Schnittstellen von Lichtwellenleiter- : Parametresdesconnecteurspourfibresunimodalesa Steckverbindern-Teil 3-1: Steckverbinderkennwerte von dispersionnondécalee en contact physique-Ferrules nichtdispersionsverschobenenphysikalisch cylindriques sans angle en zircone pleine de 2,5 mm et 1,25 kontaktierenden Einmoden-Fasern - nicht angeschragte mm de diametre zylindrische Vollzirkonium-Ferrulen mit 2,5 mm und 1,25 (IEC 61755-3-1:2024) mm Durchmesser (IEC 61755-3-1:2024) This European Standard was approved by CENELEC on 2024-05-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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 membersare thenationalelectrotechnical committees of Austria,Belgium,Bulgaria, Croatia, Cyprus,the CzechRepublic, Denmark, Estonia,Finland, France, Germany, Greece,Hungary,Iceland,Ireland, Italy, Latvia, Lithuania,Luxembourg,Malta, the Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fuir Elektrotechnische Normung CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels Ref. No.EN IEC 61755-3-1:2024 E EN IEC 61755-3-1:2024 (E) European foreword The text of document 86B/4863/FDIS, future edition 2 of IEC 61755-3-1, prepared by SC 86B "Fibre optic interconnecting devices and passive components" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61755-3-1:2024. The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2025-02-16 latest date by which the national standards conflictingwith the (dow) 2025-05-16 documenthavetobewithdrawn Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights complete listing of these bodies can be found on the CENELEC website. Endorsement notice The text of the International Standard IEC 61755-3-1:2024 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standard indicated: IEC 61300-3-47 NOTE Approved as EN 61300-3-47 IEC 61753-1 NOTE Approved as EN IEC 61753-1 IEC 61754 (series) NOTE Approved as EN 61754 (series) IEC 61755-2-1 NOTE Approved as EN IEC 61755-2-1 IEC 61755-2-4 NOTE Approved as EN 61755-2-4 2 EN IEC 61755-3-1:2024 (E) Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents are referred to in the text in such a way