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 |
|
|
