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IEC 61300-3-30
Edition 2.0 2020-12
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-30: Examinations and measurements – Polish angle and fibre position on
single ferrule multifibre connectors Endface geometry of rectangular ferrule
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IEC 61300-3-30
Edition 2.0 2020-12
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-30: Examinations and measurements – Polish angle and fibre position on
single ferrule multifibre connectors Endface geometry of rectangular ferrule
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.20 ISBN 978-2-8322-9205-1
– 2 – IEC 61300-3-30:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General description . 6
5 Measurement regions . 7
6 Apparatus . 8
6.1 General . 9
6.2 Ferrule holder . 9
6.3 Positioning stage . 9
6.4 Three-dimensional interferometry analyser . 9
7 Procedure . 10
Measurement regions .
Method for analysis .
8 Details to be specified . 15
Annex A (informative normative) Formulae for calculating approximating the end face
geometry . 17
A.1 Approximation of the ferrule surface. 17
A.2 Approximation of the fibre tip radii. 17
Annex B (normative) Surface angle sign convention (shown graphically) . 18
Annex C (normative) Fibre counting convention (shown graphically) . 20
Annex D (normative) Minus coplanarity and fibre plane angle determination . 21
D.1 Overview. 21
D.1.1 General . 21
D.1.2 Minus coplanarity. 21
D.1.3 Fibre plane x-axis and y-axis angles . 21
D.2 Method for analysis . 21
D.2.1 Single row ferrules . 21
D.2.2 Multi-row ferrules . 21
D.3 Documentation . 22
Annex E (normative) Calculation of core dip using the paraboloid method. 23
E.1 General . 23
E.2 Method for analysis . 23
Annex F (normative) Calculation of GL parameter . 24
F.1 General . 24
F.2 Method for analysis . 24
Bibliography . 26
Figure 1 – Three-dimensional interferometry analyser .
Figure 2 – Measurement regions on ferrule .
Figure 3 – Multimode fibre core dip regions .
Figure 1 – Measurement regions on ferrule and fibre . 8
Figure 2 – Measurement setup . 9
Figure B.1 – Surface angle sign convention . 19
Figure C.1 – Fibre counting convention . 20
Figure E.1 – Paraboloid fit to a fibre endface exhibiting core dip . 23
Table 1 – Ferrule measurement areas.
Table 2 – Multimode core dip areas .
Table 1 – Ferrule measurement areas and parameters . 8
Table F.1 – Parameter constants for 4-fibre ferrules . 25
Table F.2 – Parameter constants for 8-fibre ferrules . 25
Table F.3 – Parameter constants for 12-fibre ferrules . 25
– 4 – IEC 61300-3-30:2020 RLV © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-30: Examinations and measurements –
Polish angle and fibre position on single ferrule
multifibre connectors
Endface geometry of rectangular ferrule
FOREWORD
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This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change has
been made. Additions are in green text, deletions are in strikethrough red text.
International Standard IEC 61300-3-30 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) measurement of the individual fibre tip radii;
b) introduction of the geometry limit (GL) metric;
c) introduction of the minus coplanarity metric;
d) new method for measuring the core dips;
e) all measurement regions are now identical for MM and SM fibres;
f) the ferrule surface angle sign convention has been changed.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/4357/
...