EN IEC 60793-1-40:2019
(Main)Optical fibres - Part 1-40: Attenuation measurement methods
Optical fibres - Part 1-40: Attenuation measurement methods
This part of IEC 60793 establishes uniform requirements for measuring the attenuation of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. Four methods are described for measuring attenuation, one being that for modelling spectral attenuation: - method A: cut-back; - method B: insertion loss; - method C: backscattering; - method D: modelling spectral attenuation. Methods A to C apply to the measurement of attenuation for all categories of the following fibres: - class A multimode fibres; - class B single-mode fibres. Method C, backscattering, also covers the location, losses and characterization of point discontinuities. Method D is applicable only to class B fibres. Information common to all four methods appears in Clauses 1 to 11, and information pertaining to each individual method appears in Annexes A, B, C, and D, respectively.
Lichtwellenleiter - Teil 1-40: Dämpfungsmessverfahren
Fibres optiques - Partie 1-40: Méthodes de mesurage d'affaiblissement
IEC 60793-1-40:2019 est disponible sous forme de IEC 60793-1-40:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.IEC 60793-1-40:2019 établit des exigences uniformes pour mesurer l'affaiblissement d'une fibre optique, contribuant ainsi au contrôle des fibres et des câbles dans les relations commerciales. Quatre méthodes sont décrites pour mesurer l'affaiblissement, parmi lesquelles une méthode pour modéliser l'affaiblissement spectral: – méthode A: fibre coupée; – méthode B: pertes d'insertion; – méthode C: rétrodiffusion; – méthode D: modélisation de l'affaiblissement spectral. Les méthodes A à C s'appliquent au mesurage de l'affaiblissement pour toutes les catégories de fibres suivantes: – fibres multimodales de classe A; – fibres unimodales de classe B. La méthode C, rétrodiffusion, s'applique aussi à la localisation, aux pertes et à la caractérisation des discontinuités ponctuelles. La méthode D s'applique uniquement aux fibres de classe B. Les informations communes à ces quatre méthodes sont présentées dans les Articles 1 à 11, et les informations propres à chaque méthode individuelle, sont présentées dans les Annexes A, B, C et D, respectivement. Cette deuxième édition annule et remplace la première édition parue en 2001 dont elle constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) Amélioration de la description des détails de mesurage pour les fibres B6; b) Amélioration des exigences d'étalonnage pour les fibres A4; c) Ajout de l'Annexe E qui décrit des exemples de résultats d'essai sur des câbles courts pour des fibres multimodales A1. Mots-clés: mesurer l'affaiblissement d'une fibre optique
Optična vlakna - 1-40. del: Metode merjenja slabljenja (IEC 60793-1-40:2019)
1.1 Opredelitev izdelka
Ta evropski standard vsebuje začetne, začetne dimenzijske, optične, mehanske in okoljske zahteve (razen električnih zahtev) za sprejemnik/oddajnik tipa 4+4x10.3125 Gb/s MPO (QFSP) s konektorjem MPO, ki je opremljen z 12 vlakenskimi tulkami PPS, zaključenimi na vlaknu kategorije A1a.3a ali A1a.3b po standardu EN 60793 2 10, da se uvrsti v kategorijo standardnega izdelka EN.
Ker so dovoljene različne izvedbe, so podrobnosti o označevanju izdelkov podane v točki 4.6.
1.2 Združljivost
Vsi izdelki, ki so v skladu z zahtevami tega standarda, so namenjeni medsebojnemu povezovanju in zagotavljajo določeno raven naključno združene in prejete učinkovitosti. Namen tega je, da bo tako ne glede na vire proizvodnje izdelka.
1.3 Delovno okolje
Izbrani preskusi v kombinaciji z resnostjo in trajanjem so reprezentativni za notranjo uporabo osnovne plošče/hrbtne plošče, ki izhaja iz zaščitenega okolja v prostorih kupca, kot je določeno v skupini standardov EN 50173 in ISO/IEC 11801 in kot je določeno v kategoriji C po standardu EN 61753 1, ki se običajno opisuje kot okolje podatkovnega centra.
1.4 Zanesljivost
Medtem ko znaša pričakovana tehnična življenjska doba izdelka v tem okolju 10 let, skladnost s tem standardom ne zagotavlja zanesljivosti izdelka. To naj bi napovedali v okviru priznanega programa za oceno zanesljivosti.
1.5 Zagotavljanje kakovosti
Skladnost s tem standardom ne zagotavlja doslednosti izdelave izdelka. To naj bi vzdrževali v okviru priznanega programa za zagotavljanje kakovosti.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2019
Nadomešča:
SIST EN 60793-1-40:2004
Optična vlakna - 1-40. del: Metode merjenja slabljenja (IEC 60793-1-40:2019)
Optical fibres - Part 1-40: Attenuation measurement methods (IEC 60793-1-40:2019)
Lichtwellenleiter - Teil 1-40: Messmethoden und Prüfverfahren - Dämpfung (IEC 60793-1
-40:2019)
Fibres optiques - Partie 1-40: Méthodes de mesure et procédures d'essai -
Affaiblissement (IEC 60793-1-40:2019)
Ta slovenski standard je istoveten z: EN IEC 60793-1-40:2019
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60793-1-40
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 33.180.10 Supersedes EN 60793-1-40:2003
English Version
Optical fibres - Part 1-40: Attenuation measurement methods
(IEC 60793-1-40:2019)
Fibres optiques - Partie 1-40: Méthodes de mesurage Lichtwellenleiter - Teil 1-40: Messmethoden und
d'affaiblissement Prüfverfahren - Dämpfung
(IEC 60793-1-40:2019) (IEC 60793-1-40:2019)
This European Standard was approved by CENELEC on 2019-05-01. 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 members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60793-1-40:2019 E
European foreword
The text of document 86A/1909/FDIS, future edition 2 of IEC 60793-1-40, prepared by SC 86A "Fibres
and cables" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60793-1-40:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-02-01
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-05-01
document have to be withdrawn
This document supersedes EN 60793-1-40:2003.
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.
Endorsement notice
The text of the International Standard IEC 60793-1-40:2019 was approved by CENELEC as a
European Standard without any modification.
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 that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60793-1-1 - Optical fibres - Part 1-1: Measurement methods EN 60793-1-1 -
and test procedures - General and guidance
IEC 60793-1-22 - Optical fibres - Part 1-22: Measurement methods EN 60793-1-22 -
and test procedures - Length measurement
IEC 60793-1-43 - Optical fibres - Part 1-43: Measurement methods EN 60793-1-43 -
and test procedures - Numerical aperture
measurement
IEC 61746-1 - Calibration of optical time-domain reflectometers EN 61746-1 -
(OTDR) - Part 1: OTDR for single mode fibres
IEC 61746-2 - Calibration of optical time-domain reflectometers EN 61746-2 -
(OTDR) - Part 2: OTDR for multimode fibres
IEC 60793-1-40 ®
Edition 2.0 2019-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 1-40: Attenuation measurement methods
Fibres optiques –
Partie 1-40: Méthodes de mesurage de l'affaiblissement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-6593-2
– 2 – IEC 60793-1-40:2019 © IEC 2019
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Calibration requirements . 9
5 Reference test method . 9
6 Apparatus . 9
7 Sampling and specimens . 9
7.1 Specimen length . 9
7.2 Specimen end face . 9
8 Procedure . 9
9 Calculations . 9
9.1 Methods A and B . 9
9.2 Method C . 9
9.3 Method D . 9
10 Results . 9
10.1 Information available with each measurement . 9
10.2 Information available upon request . 10
10.3 Method-specific additional information . 10
11 Specification information . 10
Annex A (normative) Requirements specific to method A – Cut-back . 11
A.1 General . 11
A.2 Apparatus . 11
A.2.1 General apparatus for all fibres. 11
A.2.2 Launch apparatus for all single-mode fibres . 13
A.2.3 Launch apparatus for A1 multimode fibres . 14
A.2.4 Launch apparatus for A2 to A4 multimode fibres . 16
A.2.5 Calibration requirements . 17
A.3 Procedure . 18
A.4 Calculations . 18
Annex B (normative) Requirements specific to method B – Insertion loss . 19
B.1 General . 19
B.2 Apparatus . 19
B.2.1 General set-ups . 19
B.2.2 Apparatus common to method A (cut-back). 19
B.2.3 Additional apparatus specific to method B (insertion-loss) . 19
B.2.4 Calibration requirements . 19
B.3 Procedure . 19
B.4 Calculations . 20
Annex C (normative) Requirements specific to method C – Backscattering . 21
C.1 General . 21
C.2 Apparatus . 21
C.2.1 General . 21
C.2.2 Optical transmitter . 22
C.2.3 Launch conditions . 22
IEC 60793-1-40:2019 © IEC 2019 – 3 –
C.2.4 Optical splitter . 22
C.2.5 Optical receiver . 22
C.2.6 Pulse duration and repetition rate . 22
C.2.7 Signal processor . 22
C.2.8 Display . 23
C.2.9 Data interface (optional) . 23
C.2.10 Reflection controller (optional) . 23
C.2.11 Splices and connectors . 23
C.3 Sampling and specimens . 23
C.4 Procedure . 23
C.4.1 General . 23
C.4.2 Further steps for measuring attenuation. 25
C.4.3 Further steps for measuring point discontinuities . 25
C.4.4 Calibration . 27
C.5 Calculations . 27
C.6 Results . 27
Annex D (normative) Requirements specific to method D – Spectral attenuation
modelling . 28
D.1 General . 28
D.2 Apparatus . 28
D.3 Sampling and specimens . 28
D.4 Procedure . 28
D.5 Calculations .
...
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