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



Reference EN 50411-3-6:2013
Title Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-6: Multimode mechanical fibre splice for use in an outdoor protected environment (Cat U)
Project Number 22858
Abstract/Scope 1.1 Product definition This European Standard contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements which a multimode mechanical splice will meet in order for it to be categorised as an EN standard product. Since different variants and grades of performance are permitted, product marking and identification details are given in 3.5. Although in this document the product is qualified for EN 60793-2-10 type A1a.1, A1a.2, A1a.3 and A1b multimode fibres, it may also be suitable for other fibre types. 1.2 Interoperability The installed mechanical splice fits into a fibre management system with optical fibre splice cassettes or splice trays. This European Standard specifies the following two physical interface dimensions: • cross sectional profile with width, height or diameter (in millimetres); • length (in millimetres). 1.3 Expected performance In this document, the performance of a mechanical splice is given with identical fibres only. Losses associated with fibre cladding diameter and mode field mismatch are not taken into account. The measured attenuation is a function of the core concentricity, cladding non-circularity and alignment capability. The optical return loss performance is a function of the index matching gel and the fibre end face preparation. 1.4 Operating environment The tests selected combined with the severities and durations are representative of an outdoor enclosed environment defined as category U in EN 61753-1. To ensure that the product can be used in closures, boxes or street cabinet for categories A, G and S (as defined EN 61753-1) the specified lower temperature is extended to -40 °C and requirements for temporary flooding have been added. 1.5 Reliability Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this specification does not guarantee the reliability of the product. This should be predicted using a recognised reliability assessment programme. 1.6 Quality assurance Compliance with this specification does not guarantee the manufacturing consistency of the product. This should be maintained using a recognised quality assurance programme.


Current Stage code 6060
Current Stage code date 2013-03-01
Current Stage code deadline 2013-12-24
Deadline date for vote 2011-06-30


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 33.180.20 - Fibre optic interconnecting devices
Note 2012-11-19: Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-03-01 2013-12-24 export to doc file  EN  FR  DE
5099 2012-12-24 2013-01-21  
5060 2012-11-19 2012-12-10 export to doc file  EN
5020 2012-09-14 2012-11-16 export to doc file  EN  FR  DE
4099 2012-06-18    
4060 2011-05-23 2011-07-05 export to doc file  EN
4020 2010-12-17 2011-05-20 export to doc file  EN  DE
3099 2010-06-15 2010-12-17  
1099 2010-04-01    
1000 2009-12-03 2010-03-31  

Implementation Dates

date of Ratification (DOR) (1) 2012-12-24
date of Availability (DAV) (2) 2013-03-01
date of Announcement (DOA) (3) 2013-06-24
date of Publication (DOP) (4) 2013-12-24
date of Withdrawal (DOW) (5) 2015-12-24


Superseded by  
Normative reference (6)  

(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.