Customer Support: 131 242

  • Shopping Cart
    There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

EN 61746:2005

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Calibration of optical time-domain reflectometers (OTDR)

Superseded date

04-03-2011

Superseded by

EN 61746-1:2011

Published date

11-03-2005

1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Calibration test requirements
   4.1 Preparation
   4.2 Test conditions
   4.3 Traceability
5 Distance calibration - General
   5.1 Location error model
   5.2 Using the calibration results
   5.3 Measuring fibre length
6 Distance calibration methods
   6.1 External source method
   6.2 Concatenated fibre method
   6.3 Recirculating delay line method
7 Loss calibration - General
   7.1 Determination of the displayed power level F
   7.2 Selection of an appropriate reference loss A[ref]
   7.3 Development of a test plan
   7.4 Polarization dependence
   7.5 Calculation of the calibration results
   7.6 Using the calibration results
8 Loss calibration methods
   8.1 Loss calibration with fibre standard
   8.2 External source method
   8.3 Splice simulator method
   8.4 Power reduction method
9 Reflectance calibration
   9.1 Reflectance measurements
   9.2 Use of the backscatter parameter, K
   9.3 Range of reflectance measurement
   9.4 Development of a test plan
   9.5 Equipment
   9.6 Measurement procedure
10 Documentation
   10.1 Measurement data and uncertainties
   10.2 Test conditions
Annex A (normative) Recirculating delay line for
                      distance calibration
Annex B (normative) Optical fibre standard for loss
                      calibration
Annex C (normative) Standard splice simulator for loss
                      calibration
Annex D (informative) Mathematical basis
Annex E (normative) Reflectance standard
Annex F (normative) Simple version of reflectance standard
Annex G (informative) OTDR basis: Backscatter theory - Reflectance
                      measurements using an OTDR - Determination of
                      fibre backscatter parameter
Annex ZA (normative) Normative references to international
                      publications with their corresponding
                      European Publications
Bibliography
Figures
Table

Provides procedures for calibrating single-mode optical time domain reflectometers (OTDR). It only covers OTDR measurement errors and uncertainties. This standard does not cover correction of the OTDR response.

Committee
CLC/SR 86
DevelopmentNote
Supersedes UNE EN 61746. (02/2008)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Superseded
SupersededBy

Standards Relationship
DIN EN 61746:2005-10 Identical
CEI EN 61746 : 2006 Identical
BS EN 61746:2005 Identical
IEC 61746:2005 Identical
UNE-EN 61746:2005 Identical
I.S. EN 61746:2005 Identical
PN EN 61746 : 2007 Identical
NEN EN IEC 61746 : 2005 Identical
PNE-prEN 61746 Identical

EN 61280-4-1:2009 Fibre optic communication subsystem test procedures - Part 4-1: Installed cable plant - Multimode attenuation measurement
CEI EN 61280-4-1 : 2011 FIBRE OPTIC COMMUNICATION SUBSYSTEM TEST PROCEDURES - PART 4-1: INSTALLED CABLE PLANT - MULTIMODE ATTENUATION MEASUREMENT
BS EN 61280-4-1:2009 Fibre optic communication subsystem test procedures Installed cable plant. Multimode attenuation measurement
I.S. EN 61280-4-1:2009 FIBRE OPTIC COMMUNICATION SUBSYSTEM TEST PROCEDURES - PART 4-1: INSTALLED CABLE PLANT - MULTIMODE ATTENUATION MEASUREMENT

IEC 60825-2:2004+AMD1:2006+AMD2:2010 CSV Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCS)
IEC 60050-731:1991 International Electrotechnical Vocabulary (IEV) - Part 731: Optical fibre communication
IEC 61300-3-2:2009 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-2: Examination and measurements - Polarization dependent loss in a single-mode fibre optic device
IEC 60794-1-2:2017 Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures - General guidance
IEC 60825-1:2014 Safety of laser products - Part 1: Equipment classification and requirements
EN 60793-1-40:2003 Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation
IEC TR 61930:1998 Fibre optic graphical symbology
IEC 60793-1-40:2001 Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation
IEC TR 61931:1998 Fibre optic - Terminology
EN 61300-3-2:2009 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-2: Examinations and measurements - Polarization dependent loss in a single-mode fibre optic device
IEC 61300-3-6:2008 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-6: Examinations and measurements - Return loss
EN 60794-1-2:2017/AC:2017-07 OPTICAL FIBRE CABLES - PART 1-2: GENERIC SPECIFICATION - BASIC OPTICAL CABLE TEST PROCEDURES - GENERAL GUIDANCE (IEC 60794-1-2:2017)

Sorry this product is not available in your region.

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.