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Publication details

Publication CODE Title
NBN EN IEC 60793-1-49:2018 (2018-11) OPTICAL FIBRES - PART 1-49: MEASUREMENT METHODS AND TEST PROCEDURES - DIFFERENTIAL MODE DELAY
 
Price Excl. VAT Total number of pages, tables and drawings
25.00 € 3.
Description
IEC 60793-49:2018 applies only to multimode, graded-index glass-core (category A1) fibres. The test method is commonly used in production and research facilities, but is not easily accomplished in the field.  This document describes a method for characterizing the modal structure of a graded-index multimode fibre. This information is useful for assessing the bandwidth performance of a fibre especially when the fibre is intended to support a range of launch conditions, for example, those produced by standardized laser transmitters. This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) better alignment with original intent by filling some omissions and therefore improving measurement rigor; b) the measurement of fibres with smaller differential mode delay (and higher modal bandwidth) such as type A1a.3 fibres of IEC 60793-2-10  that are used in constructing OM4 performance category cables; new requirements on specifying detector amplitude and temporal response, specimen deployment conditions, four-quadrant scanning, and uniformity of radial locations for calculating bandwidth. Keywords: modal structure of a graded-index multimode fibre, bandwidth performance
Class  C
Available files
Not available under electronic format.
The publication in paper format can be ordered << here >>.
Status
Status Registered trilingual Belgian standard EN or FR or DE
Situation Currently active
Replaces  NBN EN 60793-1-49:2007
Origin
Committee TC 86/SC 86A
FIBRES AND CABLES (optical)
Responsible Monsieur POLART Jules, Ingénieur
Chaussée de Brunehault, 380
7140  MORLANWELZ
Phone: 064 / 45 16 83
Fax: 064 / 45 16 83
E-mail: jules.polart@ceb-bec.be
Approval
BEC Approval 2018-09-19
NBN Approval 2018-11-27
Registration 186443
ICS-Code (International Standards Classification) 33.180.10
NBN Status New
Date of ratification (d.o.r.) 2018-09-19
Date of availability (d.a.v.) 2018-11-02
Date of announcement (d.o.a.) 2018-12-19
Date of publication (d.o.p.) 2019-06-19
Date of withdrawal former edition (d.o.w.) 2021-09-19
Correspondences with international standards
Relation International standard Date
is identical to EN IEC 60793-1-49:2018 2018-11-02
is identical to IEC 60793-1-49:2018 2018-08-15
Relations to belgian/foreign publications
Type Origin Code Date
Standard Belgium EN 60793-1-22
Standard Belgium EN 60793-1-41
Standard Belgium EN 60825-1
Standard Belgium EN 60825-2
Standard Belgium EN 61280-1-4
Standard Belgium EN IEC 60793-1-45
Standard Belgium NBN EN 60793-1-1:2017