prEN 50174-4:2024
(Main)Information technology - Cabling installation - Part 4: Testing of installed optical fibre cabling
Information technology - Cabling installation - Part 4: Testing of installed optical fibre cabling
This document specifies systems and methods for the inspection and testing of installed optical fibre cabling designed in accordance with premises cabling standards including the EN 50173 series. The test methods refer to existing standards-based procedures where they exist.
Informationstechnik - Installation von Kommunikationsverkabelung - Teil 4: Messung von installierter Lichtwellenleiterverkabelung
Technologies de l’information - Installation de câblage - Partie 4: Essais d’une installation de câblage à fibres optiques
Le présent document spécifie les systèmes et les méthodes d’examen et d’essai d’une installation de câblage à fibres optiques conçue conformément aux normes de câblage des locaux, incluant ceux de la série EN 50173. Les méthodes d’essai font référence aux procédures normalisées existantes, lorsqu’elles existent.
Informacijska tehnologija - Polaganje kablov - 4. del: Preizkušanje vgrajenih optičnih kablov
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2024
Informacijska tehnologija - Polaganje kablov - 4. del: Preizkušanje vgrajenih
optičnih kablov
Information technology - Cabling installation - Part 4: Testing of installed optical fibre
cabling
Informationstechnik - Installation von Kommunikationsverkabelung - Teil 4: Messung von
installierter Lichtwellenleiterverkabelung
Technologies de l’information - Installation de câblage - Partie 4: Essais d’une installation
de câblage à fibres optiques
Ta slovenski standard je istoveten z: prEN 50174-4:2024
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD DRAFT
prEN 50174-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2024
ICS 35.110 -
English Version
Information technology - Cabling installation - Part 4: Testing of
installed optical fibre cabling
Technologies de l'information - Installation de câblage - Informationstechnik - Installation von
Partie 4: Essais d'une installation de câblage à fibres Kommunikationsverkabelung - Teil 4: Messung von
optiques installierter Lichtwellenleiterverkabelung
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2024-10-18.
It has been drawn up by CLC/TC 215.
If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 79243 Ref. No. prEN 50174-4:2024 E
1 Contents Page
2 European foreword . 7
3 Introduction . 8
4 1 Scope . 10
5 2 Normative references . 10
6 3 Terms, definitions, abbreviated terms and symbols . 11
7 3.1 Terms and definitions . 11
8 3.2 Abbreviated terms . 14
9 3.3 Symbols . 15
10 4 Conformance . 15
11 5 Test equipment . 16
12 5.1 General requirements . 16
13 5.2 Documentation . 16
14 5.3 Apparatus . 16
15 5.4 Light source and power meter . 16
16 5.4.1 Light source . 16
17 5.4.2 Power meter . 18
18 5.5 OTDR . 18
19 5.5.1 General . 18
20 5.5.2 OTDR requirements . 18
21 5.6 Test cord connectors . 19
22 5.6.1 Connecting hardware at test interfaces . 19
23 5.6.2 Connecting hardware attenuation requirements . 20
24 5.6.3 Mechanical requirements for reference connectors . 20
25 5.6.4 Reference adaptors at test interfaces . 22
26 5.7 Test cord characteristics . 22
27 5.7.1 General . 22
28 5.7.2 LSPM launch test cord . 22
29 5.7.3 LSPM tail test cord . 23
30 5.7.4 LSPM substitution test cord . 23
31 5.7.5 OTDR launch test cord . 23
32 5.7.6 OTDR tail test cord . 24
33 5.8 Visual inspection equipment. 24
34 6 Testing . 25
35 6.1 General . 25
36 6.2 Reference planes . 25
37 6.3 Wavelength of measurement . 28
38 6.4 Direction of measurement . 28
39 6.5 Protection of transmission and terminal equipment . 28
40 6.6 Use of test equipment . 28
41 6.7 Relevance of measurement . 28
42 6.8 Visual inspection for cleanliness and cleaning of cabling interfaces . 28
43 6.9 Testing of installed cabling . 29
44 6.9.1 General . 29
45 6.9.2 Attenuation of single fibre connector cabling – LSPM . 29
46 6.9.3 Attenuation of multi-fibre connector cabling – LSPM . 41
47 6.9.4 Attenuation of link and channel by means of OTDR testing . 51
48 6.9.5 Propagation delay . 54
49 6.9.6 Length . 55
50 6.9.7 Optical fibre continuity . 56
51 6.9.8 Cabling polarity . 56
52 6.9.9 Optical fibre core size . 56
53 7 Performance assessment of installed cabling components using OTDR . 56
54 7.1 General . 56
55 7.2 OTDR basis . 57
56 7.3 Fundamental parameters that define the operational capability of an OTDR . 57
57 7.3.1 Dynamic range . 57
58 7.3.2 Dynamic margin . 58
59 7.3.3 Pulse width . 58
60 7.3.4 Averaging time . 58
61 7.3.5 Dead zone . 58
62 7.3.6 Group index . 58
63 7.3.7 Measurement range . 59
64 7.3.8 Distance sampling . 59
65 7.3.9 Event threshold . 59
66 7.4 Bi-directional measurement . 59
67 7.5 Attenuation of optical fibre cable . 59
68 7.5.1 Test method . 59
69 7.5.2 Treatment of results . 60
70 7.6 Attenuation of local and remote test interfaces . 61
71 7.6.1 Test method . 61
72 7.6.2 Test system measurement uncertainties . 62
73 7.6.3 Treatment of results . 62
74 7.7 Attenuation of connecting hardware . 62
75 7.7.1 Test method . 62
76 7.7.2 Test system measurement uncertainties . 63
77 7.7.3 Treatment of results . 63
78 7.8 Return loss of connecting hardware . 64
79 7.8.1 General . 64
80 7.8.2 Test method . 64
81 7.8.3 Test system measurement uncertainties . 65
82 7.8.4 Treatment of results . 65
83 7.9 Optical fibre length . 66
84 7.9.1 Test method . 66
85 7.9.2 Measurement uncertainties . 68
86 7.9.3 Treatment of results . 68
87 8 Test result documentation . 68
88 Annex A (normative) Test cord attenuation verification . 70
89 A.1 General requirements . 70
90 A.2 Attenuation (test and substitution test cord reference connections) . 70
91 Annex B (informative) Quality planning . 72
92 B.1 General . 72
93 B.2 Specification of cabling components . 73
94 B.3 Treatment of non-compliant results .
...
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