I.S. EN 60793-1-49:2006
Withdrawn
OPTICAL FIBRES - PART 1-49: MEASUREMENT METHODS AND TEST PROCEDURES - DIFFERENTIAL MODE DELAY
Hardcopy , PDF
English
01-01-2006
09-19-2021
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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
4.1 Optical source
4.2 Stability
4.3 Launch system
4.4 Detection system
4.5 Computational equipment
5 Sampling and specimens
5.1 Test sample
5.2 Specimen endfaces
5.3 Specimen length
5.4 Specimen packaging
5.5 Specimen positioning
6 Procedure
6.1 Adjust and measure system response
6.2 Adjust detection system
6.3 Measure the test sample
7 Calculations and interpretation of results
7.1 Differential mode delay (DMD)
7.2 Minimum calculated effective modal bandwidth
7.3 Length normalization
8 Documentation
8.1 Report the following information for each test:
8.2 The following information shall be available upon request:
9 Specification information
Annex A (normative) Source spectral width limitation
Annex B (informative) Discussion of measurement details
Annex C (informative) Determining DMD weights for EMBc calculation
Annex D (informative) EMBc calculation information
Annex E (informative) Comparison between this standard and
ITU recommendations
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
Specifies 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 variety of launch conditions such as those produced by standardized laser transmitters.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
71
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Withdrawn
|
| Standards | Relationship |
| EN 60793-1-49:2006 | Identical |
| DIN EN 60793-1-49 : 2007 | Identical |
| BS EN 60793-1-49:2006 | Identical |
| NF EN 60793-1-49 : 2006 | Identical |
| IEC 60793-1-49:2006 | Identical |
| IEC 60793-1-49:2006 | Equivalent |
| UNE-EN 60793-1-49:2006 | Equivalent |
This standard has been withdrawn and is no longer current. No replacement edition is available.
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