EN 61746:2001

Calibration of optical time-domain reflectometers (OTDRs)

Provides procedures for calibrating single-mode optical time domain reflectometers (ODTRs). It only covers ODTR measurement errors and uncertainties. The ODTR must be equipped with a minimum feature set: programmable index of refraction, display of a trace representation, two cursors, absolute distance measurement, displayed power level relative to a reference level. It does not cover correction of the ODTR response.

Kalibrierung optischer Rückstreumessgeräte (OTDR)

Etalonnage des réflectomètres optiques dans le domaine de temps (OTDR)

Décrit des procédures destinées à l'étalonnage des réflectomètres optiques dans le domaine de temps pour fibres unimodales (ODTR). Elle ne traite que des erreurs et incertitudes de l'ODTR. Pour suivre la procédure dans cette norme, un ODTR sera au minimum équipé des fonctions spécifiques: un indice de réfraction programmable, l'affichage d'ume représentation graphique du signal, deux curseurs, mesurer la distance absolue, mesurer le niveau de puissance affiché par rapport une référence. Cette norme ne couvre pas la correction de la réponse de l'ODTR.

Kalibriranje optične časovne domene reflektometrov (OTDRji) (IEC 61746:2001)*

General Information

• Status: Withdrawn
• Publication Date: 05-Nov-2001
• Withdrawal Date: 30-Sep-2004
• ICS: 17.180.30 - Optical measuring instruments
• ICS: 33.180.99 - Other fibre optic equipment
• Technical Committee: CLC/SR 86 - Fibre optics
• Drafting Committee: IEC/TC 86 - IEC_TC_86
• Parallel Committee: IEC/TC 86 - IEC_TC_86
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 01-Feb-2008
• Completion Date: 01-Feb-2008
• Ref Project: SIST EN 61746:2004 - Calibration of optical time-domain reflectometers (OTDRs)

Relations

• Replaced By: EN 61746:2005 - Calibration of optical time-domain reflectometers (OTDR)
• Effective Date: 28-Jan-2023

Standards Content (Sample)

EUROPEAN STANDARD EN 61746
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2001
ICS 17.180.30;33.180.99
English version
Calibration of optical time-domain reflectometers (OTDRs)
(IEC 61746:2001)
Etalonnage des réflectomètres optiques Kalibrierung optischer
dans le domaine de temps (OTDR) Rückstreumessgeräte (OTDR)
(CEI 61746:2001) (IEC 61746:2001)
This European Standard was approved by CENELEC on 2001-10-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61746:2001 E

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EN 61746:2001 - 2 -
Foreword
The text of document 86/175/FDIS, future edition 1 of IEC 61746, prepared by IEC TC 86, Fibre
optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61746 on 2001-10-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2002-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2004-10-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes A, B, C and ZA are normative and annex D is informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61746:2001 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 61746:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60050-731 1991 International Electrotechnical --
Vocabulary (IEV)
Chapter 731: Optical fibre
communication
IEC 60617-10 1996 Graphical symbols for diagrams EN 60617-10 1996
Part 10: Telecommunications:
Transmission
IEC 60793-1 Series Optical fibres --
Part 1: Generic specification
IEC 60794-1 Series Optical fibre cables EN 60794-1 Series
Part 1: Generic specification
IEC 60825-1 1993 Safety of laser products EN 60825-1 1994
Part 1: Equipment classification, + corr. February 1995
requirements and user's guide + A11 1996
A1 1997 - -
A2 2001 A2 2001
IEC 61300-3-2 1999 Fibre optic interconnecting devices and EN 61300-3-2 1999
passive components - Basic tests and
measurement procedures
Part 3-2: Examinations and
measurements - Polarization
dependence of attenuation in a single-
mode fibre optic device
ISO 1993 International vocabulary of basic and--
general terms in metrology
ISO 1995 Guide to the expression of uncertainty--
in measurement
ITU-T 1997 Definition and test methods for the--
Recommendation relevant parameters of single-mode
G.650 fibres

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NORME CEI
INTERNATIONALE IEC
61746
INTERNATIONAL
Première édition
STANDARD
First edition
2001-09
Etalonnage des réflectomètres optiques
dans le domaine de temps (OTDR)
Calibration of optical time-domain
reflectometers (OTDRs)
© IEC 2001 Droits de reproduction réservés ⎯ Copyright - all rights reserved
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