International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61280-4-1:2009
Title Fibre optic communication subsystem test procedures - Part 4-1: Installed cable plant - Multimode attenuation measurement
Project Number 21810
Abstract/Scope IEC 61280-4-1:2009(E) is applicable to the measurement of attenuation of installed fibre-optic cabling using multimode fibre, typically in lengths of up to 2 000 m. This cabling can include multimode fibres, connectors, adapters and splices. Cabling design standards such as ISO/IEC 11801, ISO/IEC 24702 and ISO/IEC 24764 contain specifications for this type of cabling. ISO/IEC 14763-3, which supports these design standards, makes reference to the test methods of this standard. In this standard, the fibre types that are addressed include category A1a (50/125 um) and A1b (62,5/125 um) multimode fibres, as specified in IEC 60793-2-10. The attenuation measurements of the other multimode categories can be made, using the approaches of this standard, but the source conditions for the other categories have not been defined. The main changes with respect to the previous edition are: - An additional measurement method based on optical time domain reflectometry (OTDR) is documented, with guidance on best practice in using the OTDR and interpreting OTDR traces. - The requirement for the sources used to measure multimode fibres is changed from one based on coupled power ratio (CPR) and mandrel requirement to one based on measurements of the near field at the output of the launching test cord.


Current Stage code 6060
Current Stage code date 2009-12-02
Current Stage code deadline 2010-07-01
Deadline date for vote  


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IEC Technical Body IEC/SC 86C
Reference Document IEC 61280-4-1:2009 (EQV)
ICS 33.180.01 - Fibre optic systems in general
Keywords Fibre; Optic; Communication; Cable plant; Attenuation
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2009-12-02 2010-07-01 export to doc file  EN  FR  DE
5099 2009-10-01 2009-12-01  
5061 2009-08-27 2009-10-01  
5060 2009-05-19 2009-06-02 export to doc file  EN
5020 2009-03-13 2009-05-15  
3090 2008-08-29 2009-03-31  
5060 2008-08-18 2008-09-01 export to doc file  EN
5020 2008-03-14 2008-08-15  
1090 2008-03-11 2008-03-14  

Implementation Dates

date of Ratification (DOR) (1) 2009-10-01
date of Availability (DAV) (2) 2009-12-02
date of Announcement (DOA) (3) 2010-01-01
date of Publication (DOP) (4) 2010-07-01
date of Withdrawal (DOW) (5) 2012-10-01


Supersedes EN 61280-4-1:2004
Superseded by  
Normative reference (6) EN 60825-2:2004
EN 61280-1-3:2010
EN 61280-1-4:2010
IEC/PAS 61300-3-35:2002
EN 61315:2006
IEC 61745:1998
EN 61746:2005

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.