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



Reference EN 60793-1-49:2006
Title Optical fibres - Part 1-49: Measurement methods and test procedures - Differential mode delay
Project Number 16738
Abstract/Scope Describes a method for characterizing the modal structure of a graded-index multimode fibre. The information is useful for assessing the bandwidth performance of a fibre when used with laser sources. Applies only to multimode, graded-index glass-core (category A1) fibres. The test method is commonly used in production and research facilities, however is not easily accomplished in the field.


Current Stage code 6060
Current Stage code date 2006-07-24
Current Stage code deadline 2007-04-01
Deadline date for vote  


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IEC Technical Body IEC/SC 86A
Reference Document IEC 60793-1-49:2006 (EQV)
ICS 33.180.10 - Fibres and cables
Keywords Optical fibre; Delay; Differential mode delay; Measurement; Test
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2006-07-24 2007-04-01 export to doc file  EN  FR  DE
5099 2006-07-01 2006-09-01  
5060 2006-05-30 2006-06-12 export to doc file  EN
5020 2006-03-24 2006-05-26  
4099 2005-07-29 2005-10-14  
4020 2005-02-04 2005-07-08  
3099 2005-02-01 2005-02-04  

Implementation Dates

date of Ratification (DOR) (1) 2006-07-01
date of Availability (DAV) (2) 2006-07-24
date of Announcement (DOA) (3) 2006-10-01
date of Publication (DOP) (4) 2007-04-01
date of Withdrawal (DOW) (5) 2009-07-01


Supersedes EN 60793-1-49:2003
Superseded by  
Normative reference (6) EN 60793-1-1:2003
EN 60793-1-22:2002
EN 60793-1-41:2003
EN 60793-1-42:2002
EN 60793-1-45:2003
corr. April 2004
EN 60793-2-10:2004
EN 61280-1-4:2003

(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.