{"id":422043,"date":"2024-10-20T06:39:18","date_gmt":"2024-10-20T06:39:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-tr-61282-142019-2\/"},"modified":"2024-10-26T12:27:09","modified_gmt":"2024-10-26T12:27:09","slug":"bsi-pd-iec-tr-61282-142019-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-tr-61282-142019-2\/","title":{"rendered":"BSI PD IEC TR 61282-14:2019"},"content":{"rendered":"

This part of IEC 61282, which is a Technical Report, establishes the detailed analysis and calculation of the uncertainties related to the measurement of the attenuation of both multimode and single mode optical fibre cabling using optical light sources and power meters.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
9<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
12<\/td>\n3.2 Abbreviated terms
4 Overview of uncertainty
4.1 What is uncertainty? <\/td>\n<\/tr>\n
13<\/td>\n4.2 Origin of uncertainties
4.3 What may not be considered as uncertainty?
5 Fibre cabling attenuation measurement
5.1 Test methods
5.2 Sources of uncertainty to be considered
5.2.1 Analysis <\/td>\n<\/tr>\n
14<\/td>\nTables
Table 1 \u2013 Source of uncertainty (raw list) <\/td>\n<\/tr>\n
15<\/td>\nFigures
Figure 1 \u2013 Fishbone analysis <\/td>\n<\/tr>\n
16<\/td>\n5.2.2 Uncertainties due to the environment
5.2.3 Uncertainties due to operator skills
5.2.4 Uncertainties due to test methods
5.2.5 Uncertainties due to measuring instruments <\/td>\n<\/tr>\n
17<\/td>\nTable 2 \u2013 Uncertainties due to measuring instruments <\/td>\n<\/tr>\n
18<\/td>\n5.2.6 Uncertainties due to the setup
5.2.7 Uncertainties due to cabling
Table 3 \u2013 Uncertainties due to the setup
Table 4 \u2013 Uncertainties due to cabling <\/td>\n<\/tr>\n
19<\/td>\n6 Uncertainties estimation
6.1 Measurement model
Figure 2 \u2013 Measurement model <\/td>\n<\/tr>\n
21<\/td>\n6.2 Accumulation of uncertainties
7 General representation of the equation using sensitivity coefficients <\/td>\n<\/tr>\n
23<\/td>\nTable 5 \u2013 Sensitivity coefficients for IEC 61280-4-1 and IEC 61280-4-2 methods <\/td>\n<\/tr>\n
24<\/td>\nTable 6 \u2013 Sensitivity coefficients for ISO\/IEC 14763-3:2014 methods <\/td>\n<\/tr>\n
25<\/td>\n8 Calculation
8.1 Combined standard uncertainty
8.2 Expanded uncertainty
8.3 Determination of the coverage factor k
8.3.1 General approach
8.3.2 Discussion <\/td>\n<\/tr>\n
26<\/td>\nTable 7 \u2013 Values of k95 for different values of \u03bd
Table 8 \u2013 Typical values of \u03bdi <\/td>\n<\/tr>\n
27<\/td>\nAnnexes
Annex A (informative) Mathematical basis
A.1 General
A.2 Type A evaluation of uncertainty
A.3 Type B evaluation of uncertainty <\/td>\n<\/tr>\n
28<\/td>\nA.4 Determining the combined standard uncertainty <\/td>\n<\/tr>\n
29<\/td>\nA.5 Reporting <\/td>\n<\/tr>\n
30<\/td>\nAnnex B (informative) Test methods
B.1 Test methods as per IEC 61280-4-1 and 61280-4-2
B.1.1 General
B.1.2 Measurement configuration
B.1.3 One-cord reference configuration
Figure B.1 \u2013 Measurement configuration
Figure B.2 \u2013 One-cord reference measurement <\/td>\n<\/tr>\n
31<\/td>\nB.1.4 Two-cord reference configuration
B.1.5 Three-cord reference configuration
B.2 Test methods defined in ISO\/IEC 14763-3:2014
B.2.1 General
Figure B.3 \u2013 Two-cord reference measurement
Figure B.4 \u2013 Three-cord reference measurement <\/td>\n<\/tr>\n
32<\/td>\nB.2.2 Channels
Figure B.5 \u2013 Measurement on channel
Figure B.6 \u2013 Channel reference measurement <\/td>\n<\/tr>\n
33<\/td>\nB.2.3 Links
Figure B.7 \u2013 Link measurement configuration
Figure B.8 \u2013 Link reference measurement <\/td>\n<\/tr>\n
34<\/td>\nAnnex C (informative) Uncertainties evaluation
C.1 Type A uncertainties
C.1.1 General
C.1.2 Evaluation of optical source instability and associated uncertainties
C.2 Type B uncertainties
C.2.1 General
C.2.2 Evaluation of the power meter noise <\/td>\n<\/tr>\n
35<\/td>\nC.2.3 Elements to be considered for power meter stability analysis
C.2.4 Evaluation of the centre wavelength dependence <\/td>\n<\/tr>\n
36<\/td>\nFigure C.1 \u2013 Typical spectral response of a fibre
Table C.1 \u2013 Spectral attenuation coefficients <\/td>\n<\/tr>\n
37<\/td>\nC.2.5 Spectral width dependence
C.2.6 Evaluation of the uncertainties due to MM launch conditions
Table C.2 \u2013 Sensitivity coefficients <\/td>\n<\/tr>\n
38<\/td>\nC.2.7 Evaluation of the PDL
Figure C.2 \u2013 Uncertainties due to the launch conditions for a given loss <\/td>\n<\/tr>\n
39<\/td>\nC.2.8 Uncertainty of absolute power measurement <\/td>\n<\/tr>\n
40<\/td>\nAnnex D (informative) Typical values of uncertainties <\/td>\n<\/tr>\n
41<\/td>\nTable D.1 \u2013 Typical values of uncertainties <\/td>\n<\/tr>\n
42<\/td>\nAnnex E (informative) Linear to dB scale conversion of uncertainties
E.1 Definition of decibel
E.2 Conversion of relative uncertainties <\/td>\n<\/tr>\n
43<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Fibre optic communication system design guides – Determination of the uncertainties of attenuation measurements in fibre plants<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":422052,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[648,2641],"product_tag":[],"class_list":{"0":"post-422043","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-180-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/422043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/422052"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=422043"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=422043"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=422043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}