kSIST FprEN IEC 60793-2-50:2024
(Main)Optical fibres - Part 2-50: Product specifications - Sectional specification for class b single-mode fibres
Optical fibres - Part 2-50: Product specifications - Sectional specification for class b single-mode fibres
Lichtwellenleiter - Teil 2-50: Produktspezifikationen - Rahmenspezifikation für Einmodenfasern der Kategorie B
Fibres optiques - Partie 2-50: Spécifications de produits - Spécification intermédiaire pour les fibres unimodales de classe b
Optična vlakna - 2-50. del: Specifikacije izdelka - Področna specifikacija za enorodovna vlakna razreda B
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 60793-2-50:2023
01-junij-2023
Optična vlakna - 2-50. del: Specifikacije izdelka - Področna specifikacija za
enorodovna vlakna razreda B
Optical fibres - Part 2-50: Product specifications - Sectional specification for class B
singlemode fibres
Lichtwellenleiter - Teil 2-50: Produktspezifikationen - Rahmenspezifikation für
Einmodenfasern der Kategorie B
Fibres optiques - Partie 2-50: Spécifications de produits - Spécification intermédiaire
pour les fibres unimodales de classe B
Ta slovenski standard je istoveten z: prEN IEC 60793-2-50:2023
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
oSIST prEN IEC 60793-2-50:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 60793-2-50:2023
oSIST prEN IEC 60793-2-50:2023
86A/2301/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60793-2-50 ED7
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-03-31 2023-06-23
SUPERSEDES DOCUMENTS:
86A/2225/CD, 86A/2293/CC
IEC SC 86A : FIBRES AND CABLES
SECRETARIAT: SECRETARY:
France Mr Laurent Gasca
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
SC 86B,SC 86C,ISO/IEC JTC 1/SC 25
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of
• any relevant patent rights of which they are aware and to provide supporting documentation,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are
reminded that the enquiry stage is the final stage for submitting "in some countries" clauses. See
AC/22/2007.
TITLE:
Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-
mode fibres
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
any other purpose without permission in writing from IEC.
oSIST prEN IEC 60793-2-50:2023
IEC CDV 60793-2-50/Ed7 © IEC 2023 – 2 – 86A/2301/CDV
1 CONTENTS
2 FOREWORD . 5
3 1 Scope . 7
4 2 Normative references . 8
5 3 Terms and definitions . 9
6 4 Abbreviated terms and symbols . 10
7 5 Specifications . 10
8 5.1 General . 10
9 5.2 Dimensional requirements . 10
10 5.3 Mechanical requirements . 11
11 5.4 Transmission requirements . 12
12 5.5 Environmental requirements . 14
13 5.5.1 General . 14
14 5.5.2 Optical environmental requirements – Attenuation . 14
15 5.5.3 Mechanical environmental requirements . 15
16 Annex A (normative) Family specification for category B-652 Dispersion unshifted
17 single-mode fibres . 16
18 A.1 General . 16
19 A.2 Dimensional requirements . 16
20 A.3 Mechanical requirements . 17
21 A.4 Transmission requirements . 17
22 A.5 Hydrogen ageing for sub-category B-652.D . 19
23 A.6 Environmental requirements . 19
24 Annex B (normative) Family specification for category B-653 Dispersion shifted
25 single-mode fibres . 20
26 B.1 General . 20
27 B.2 Dimensional requirements . 20
28 B.3 Transmission requirements . 21
29 B.3.1 General . 21
30 B.3.2 Chromatic dispersion coefficient requirement for sub-category B-653.A
31 fibres . 21
32 B.3.3 Chromatic dispersion coefficient requirement for sub-category B-653.B
33 fibres . 22
34 B.4 Environmental requirements . 22
35 Annex C (normative) Family specification for category B-654 cut-off shifted single-
36 mode fibres . 23
37 C.1 General . 23
38 C.2 Dimensional requirements . 23
39 C.3 Mechanical requirements . 24
40 C.4 Chromatic dispersion parameters for B-654.E fibres . 25
41 C.5 Environmental requirements . 26
42 Annex D (normative) Family specification for category B-655 non-zero dispersion
43 shifted single-mode fibres . 27
44 D.1 General . 27
45 D.2 Dimensional requirements . 27
46 D.3 Mechanical requirements . 27
47 D.4 Transmission requirements . 28
48 D.4.1 General . 28
oSIST prEN IEC 60793-2-50:2023
IEC CDV 60793-2-50/Ed7 © IEC 2023 – 3 – 86A/2301/CDV
49 D.4.2 Chromatic dispersion coefficient limits for sub-category B-655.C fibres. 28
50 D.4.3 Chromatic dispersion coefficient limits for sub-category B-655.D fibres. 29
51 D.4.4 Chromatic dispersion coefficient limits for sub-category B-655.E fibres . 29
52 D.5 Environmental requirements . 29
53 Annex E (normative) Family specification for category B-656 Wideband non-zero
54 dispersion shifted single-mode fibres . 30
55 E.1 General . 30
56 E.2 Dimensional requirements . 30
57 E.3 Mechanical requirements . 30
58 E.4 Transmission requirements . 31
59 E.4.1 General . 31
60 E.4.2 Chromatic dispersion coefficient for category B-656 fibres . 31
61 E.5 Environmental requirements . 32
62 Annex F (normative) Family specification for category B-657 Bending loss insensitive
63 single-mode fibres . 33
64 F.1 General . 33
65 F.2 Dimensional requirements . 33
66 F.3 Mechanical requirements . 34
67 F.4 Transmission requirements . 34
68 F.5 Environmental requirements . 36
69 Annex G (informative) System design information for category B-655 non-zero
70 disperion shifted single-mode fibres . 37
71 G.1 General . 37
72 G.2 One standard deviation limits for sub-category B-655.D fibres . 37
73 G.3 One standard deviation limits for sub-category B-655.E fibres. 38
74 Bibliography . 40
76 Figure G.1 – Sub-category B-655.D chromatic dispersion coefficient limits . 38
77 Figure G.2 – Sub-category B-655.E chromatic dispersion coefficient limits . 39
79 Table 1 – Map of IEC designation to ITU-T Recommendations and IEC 60793-2-
80 50:2015 designation. 8
81 1. Table 2 – Dimensional attributes and measurement methods . 11
82 Table 3 – Dimensional requirements common to all category B fibres . 11
83 Table 4 – Mechanical attributes and test methods . 11
84 Table 5 – Mechanical requirements common to all class B fibres . 12
85 Table 6 – Transmission attributes and measurement methods . 13
86 Table 7 – Transmission, requirements common to all class B fibres . 13
87 Table 8 – Additional transmission attributes required in the family specifications . 13
88 Table 9 – Environmental exposure tests . 14
89 Table 10 – Attributes measured in environmental exposure tests . 14
90 Table 11 – Change in attenuation for environmental tests . 14
91 Table 12 – Coating strip force for environmental tests . 15
92 Table 13 – Tensile strength for environmental tests . 15
93 Table 14 – Stress corrosion susceptibility for environmental tests . 15
94 Table A.1 – Dimensional requirements specific to category B-652.B fibres. 16
95 Table A.2 – Dimensional requirements specific to category B-652.D fibres . 17
oSIST prEN IEC 60793-2-50:2023
IEC CDV 60793-2-50/Ed7 © IEC 2023 – 4 – 86A/2301/CDV
96 Table A.3 – Mechanical requirements specific to category B-652 fibres . 17
97 Table A.4 – Transmission requirements specific to sub-category B-652.B fibres . 18
98 Table A.5 – Transmission requirements specific to sub-category B-652.D Fibres . 18
99 Table A.6 – Chromatic dispersion properties for sub-category B-652.D fibres . 19
100 Table B.1 – Dimensional requirements specific to category B-653 fibres . 20
101 Table B.2 – Mechanical requirements specific to category B-653 fibres . 21
102 Table B.3 – Transmission requirements specific to category B-653 fibres .
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