IEC 61300-1:2011

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance

IEC 61300-1:2011 contains a series of environmental test and measurement procedures and, in some cases, preferred severities designed to assess the ability of fibre optic interconnecting devices and passive components to perform under expected service conditions. Although the severities are primarily intended for land-based communications, the procedures may be used for other applications. The object of this standard is to provide uniform and reproducible environmental test procedures and measurement procedures, for those preparing specifications for fibre optic interconnecting devices and passive components. The changes with respect to the previous edition are to reconsider the terms and definitions and multimode launch conditions.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Procédures fondamentales d'essais et de mesures - Partie 1: Généralités et lignes directrices

La CEI 61300-1:2011 contient une série de méthodes d'essai et de mesure environnementales et, dans certains cas, les sévérités préférentielles pour évaluer la capacité des dispositifs d'interconnexion et composants passifs à fibres optiques à fonctionner dans des conditions de service prévues. Même si les sévérités sont d'abord destinées aux communications terrestres, les méthodes peuvent être utilisées pour d'autres applications. L'objet de la présente norme est de fournir des méthodes d'essai environnementales et de mesure uniformes et reproductibles aux personnes en charge de la rédaction de spécifications concernant les dispositifs d'interconnexion et les composants passifs à fibres optiques. Les modifications par rapport à l'édition précédente consistent en une reconsidération des termes et définitions et des conditions d'injection en multimode.

General Information

• Status: Published
• Publication Date: 22-Mar-2011
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 4 - TC 86/SC 86B/WG 4
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 28-Jul-2016

Relations

• Revised: IEC 61300-1:2016 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61300-1


®


Edition 3.0 2011-03



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 1: General and guidance

Dispositifs d'interconnexion et composants passifs à fibres optiques –
Procédures fondamentales d'essais et de mesures –
Partie 1: Généralités et lignes directrices


IEC 61300-1:2011

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IEC 61300-1


®


Edition 3.0 2011-03




INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 1: General and guidance

Dispositifs d'interconnexion et composants passifs à fibres optiques –
Procédures fondamentales d'essais et de mesures –
Partie 1: Généralités et lignes directrices


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 33.180.20 ISBN 978-2-88912-407-7

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 61300-1  IEC:2011



CONTENTS

FOREWORD . 3


INTRODUCTION . 5

1 Scope . 6

2 Normative references . 6


3 Terms and definitions . 7

4 Standard atmospheric conditions . 8

5 Significance of the numerical value of a quantity . 8

5.1 General . 8
5.2 Quantity expressed as nominal value with tolerance . 8
5.3 Quantity expressed as a range of values . 9
6 Graphical symbols and terminology . 10
7 Safety . 10
8 Calibration . 10
8.1 General . 10
8.2 Round robin calibration procedure . 10
9 Launch conditions . 10
9.1 General . 10
9.2 Multimode launch conditions . 11
9.3 Single-mode launch conditions . 11
Annex A (informative) Round robin calibration procedure for dimensional
measurements on ferrules and sleeves . 12
Annex B (normative) Multimode launch condition requirements for measuring
attenuation. 15
Bibliography . 18

Figure A.1 – Flow chart of round robin calibration procedure . 13
Figure A.2 – Examples for the determination of the measurement points and the
marking of the round robin standards . 14
Figure B.1 – Encircled Flux template example . 16

Table 1 – Standard Atmospheric Conditions. 8

Table 2 – Expected uncertainty for measured attenuation of single connectors . 11
Table B.1 – EF requirements for 50 µm core fibre at 850 nm . 17
Table B.2 – EF requirements for 50 µm core fibre at 1300 nm . 17
Table B.3 – EF requirements for 62,5 µm fibre at 850 nm . 17
Table B.4 – EF requirements for 62,5 µm fibre at 1300 nm . 17

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61300-1  IEC:2011 – 3 –


INTERNATIONAL ELECTROTECHNICAL COMMISSION

_____________



FIBRE OPTIC INTERCONNECTING DEVICES

AND PASSIVE COMPONENTS –

BASIC TEST AND MEASUREMENT PROCEDURES –



Part 1: General and guidance



FOREWORD

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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61300-1 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre Optics.
This third edition cancels and replaces the second edition published in 2003. This edition
constitutes a technical revision. The changes with respect to the previous edition are to
reconsider the terms and definitions and multimode launch conditions.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3112/FDIS 86B/3164/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

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This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.


The list of all parts in the IEC 61300 series, published under the general title, Fibre optic

interconnecting and passive components – Basic test and measurement procedures, can be

found on the IEC website.


The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be


• reconfirmed,

• withdrawn,
• replaced by a revised edition, or
• amended.

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61300-1  IEC:2011 – 5 –


INTRODUCTION


The publications in the IEC 61300 series contain information on environmental testing

procedures and measurement procedures relating to fibre optic interconnecting devices and

passive components. They are intended to be used to achieve uniformity and reproducibility in

environmental testing procedures and measurement procedures.


The term "test procedure" refers to procedures commonly known as environmental tests. The

expressions "environmental conditioning" and "environmental testing" refer to the

environments to which components or equipment may be exposed so that an assessment may

be made of their performance under the conditions of use, transport and storage.

The term "measurement procedure" refers to those measurements which are necessary
to assess the physical and optical characteristics of a component and may also be used
before, during or after a test procedure to measure the effects of environmental conditioning or
testing. The return loss and attenuation tests are examples of measurement procedures.
The requirements for the performance of components or equipment subjected to the test and
measurement procedures described in this standard are not included. The relevant
specification for the device under test defines the allowed performance limits.
When drafting a specification or purchase contract, only those tests which are necessary for
the relevant components or equipment taking into account the technical and economic
aspects should be specified.
The environmental test procedures are contained in the IEC 61300-2 series and the
measurement procedures in the IEC 61300-3 series. Each test or measurement procedure is
published as a stand-alone publication so that it may be modified, expanded or cancelled
without having an effect on any other test or measurement procedure. However it should be
noted that, where practical, reference is made to other standards as opposed to repeating all
or part of already existing standards. As an example, the cold test for fibre optic apparatus
refers to IEC 60068-2-1, but it also provides other needed information such as purpose,
recommended severities and a list of items to be specified.
Multiple methods may be contained in a test or measurement procedure. As an example,
several methods of measuring attenuation are contained in the attenuation measurement
procedure.
If more than one method is contained in a test or measurement procedure, the reference
method is identified.

The tests in this standard permit the performance of sample components or equipment to be
compared. To assess the overall quality of a production lot, the test procedures should be
applied in accordance with a suitable sampling plan and may be supplemented by appropriate
additional tests, if necessary.
To provide tests appropriate to the different intensities of an environmental condition, some of
the test procedures have a number of degrees of severity. These different degrees of severity
are obtained by varying the time, temperature or some other determining factor separately or
in combination.

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– 6 – 61300-1  IEC:2011


FIBRE OPTIC INTERCONNECTING DEVICES

AND PASSIVE COMPONENTS –

BASIC TEST AND MEASUREMENT PROCEDURES –



Part 1: General and guidance








1 Scope

This part of IEC 61300 contains a series of environmental test and measurement procedures
and, in some cases, preferred severities designed to assess the ability of fibre optic
interconnecting devices and passive components to perform under expected service
conditions. Although the severities are primarily intended for land-based communications, the
procedures may be used for other applications. The object of this standard is to provide
uniform and reproducible environmental test procedures and measurement procedures, for
those preparing specifications for fibre optic interconnecting devices and passive
components.
These test and measurement procedures are designed to provide information on the following
properties of components and equipment, such as connectors, splices, switches, attenuators,
etc.:
a) ability to operate within specified limits of temperature, pressure, humidity, mechanical
stress or other environmental conditions and certain combinations of these conditions;
b) ability to withstand storage and transport;
c) ability to meet the specified levels of optical performance.
This standard should be used in combination with the relevant specification which will define
the tests to be used, the required degree of severity for each of them, their sequence,
if relevant, and the permissible performance limits. In the event of conflict between this basic
standard and the relevant specification, the latter will take precedence.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.

IEC 60050-731, International Electrotechnical Vocabulary – Chapter 731: Optical fibre
communication
IEC 60617, Graphical symbols for diagrams
IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
IEC 60825-2, Safety of laser products – Part 2: Safety of optical fibre communication
systems (OFCS)
IEC 61280-1-4, Fibre optic communication subsystem test procedures – Part 1-4: General
communication subsystems – Light source encircled flux measurement method
IEC 61280-4-1, Fibre optic communication subsystem test procedures – Part 4-1: Installed
cable plant – Multimode attenuation measurement

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61300-1  IEC:2011 – 7 –


IEC 61300-2 (all parts), Fibre optic interconnecting devices and passive components – Basic

test and measurement procedures – Tests


IEC 61300-3 (all parts), Fibre optic interconnecting devices and passive components – Basic

test and measurement procedures – Examinations and measurements


IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-1: Examinations and measurements – Visual examination


ISO/IEC 17025, General requirements for the competence of testing and calibration

laboratories

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
test
technical operation that consists of the determination of one or more characteristics of a given
product, process or service according to a specified procedure and normally consists of the
following steps:
a) pre-conditioning (where required);
b) initial examination and measurement (where required);
c) conditioning;
d) recovery (where required);
e) final examination and measurement.
3.2
device under test
(DUT)
single component, equipment or other item designated to be tested in accordance with the
procedures of this standard
3.3
pre-conditioning
treatment of a DUT with the object of removing or partly counteracting the effects of its
previous history
NOTE When called for, it is the first step in the test procedure.

3.4
conditioning
exposure of a DUT to environmental conditions in order to determine the effects of such
conditions on the DUT
NOTE Where measurements are required during conditioning, this will be stated in the relevant specification.
3.5
recovery
treatment of a DUT after conditioning in order that the properties of the DUT may stabilise
before measurement

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– 8 – 61300-1  IEC:2011


3.6

sample

group of DUTs, selected at random or by some other specified procedure from a larger

population and which, for the purpose of testing, is intended to be representative of the larger

population


4 Standard atmospheric conditions


Standard atmospheric conditions shall be controlled within some range to ensure proper

correlation of data obtained from measurements and tests conducted in various facilities. Test

and measurement procedures shall be conducted under the following atmospheric conditions

unless otherwise specified. In some cases special ambient conditions may be needed and can
be specified in the relevant specification.
The standard range of atmospheric conditions for carrying out measurements and tests is set
out in Table 1.
Table 1 – Standard Atmospheric Conditions
Temperature Relative humidity Air pressure
86 kPa to 106 kPa
o o
18 C to 28 C 25 % to 75 %
(860 mbar to 1 060 mbar)

Variations in ambient temperature and humidity shall be kept to a minimum during a series of
measurements.
5 Significance of the numerical value of a quantity
5.1 General
The numerical values of quantities for the various parameters (temperature, humidity, stress,
duration, optical power levels, etc.) given in the basic methods of environmental and optical
testing constituting the IEC 61300-2 series and the optical and physical measurements
constituting the IEC 61300-3 series are expressed in different ways according to the needs of
each individual test.
The two cases that most frequently arise are:
a) the quantity is expressed as a nominal value with a tolerance;
b) the quantity is expressed as a range of values.

For these two cases, the significance of the numerical value is discussed in 5.2 and 5.3.
5.2 Quantity expressed as nominal value with tolerance
Examples of two forms of presentation:
a) 40 mm ± 2 mm
2 s ± 0,5 s
0,3 dB ± 0,1 dB
+ 3
b) 93 % %
–2
The expression of a quantity as a numerical value indicates the intention that the test should
be carried out at the stated value. The object of stating tolerances is to take account of the
following factors in particular:

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61300-1  IEC:2011 – 9 –


− the difficulties in regulating some devices and their drift (undesired slow variation) during

the test;

− instrument errors;


− non-uniformity of environmental parameters, for which no specific tolerances are given, in

the test space in which the DUTs under test are located.

These tolerances are not intended to allow latitude in the adjustment of the values of the

parameter within the test space. Hence, when a quantity is expressed by a nominal value with

a tolerance, the test apparatus shall be adjusted so as to obtain this nominal value making

allowance for instrument errors.


In principle, the test apparatus shall not be adjusted to maintain a limiting value of the
tolerance zone, even if its uncertainty is so small as to ensure that this limiting value would
not be exceeded.
EXAMPLE: If the quantity is expressed numerically as 100 ± 5, the test apparatus shall be adjusted to maintain the
target value of 100 making allowance for instrument errors and shall in no case be adjusted to maintain a target
value of 95 or 105.
In order to avoid any limiting value applicable to the DUT during the carrying out of the test, it
may be necessary in some cases to set the test apparatus near to one tolerance limit.
In the particular case where the quantity is expressed by a nominal value with a unilateral
tolerance (which is generally the case unless justified otherwise by special conditions, for
example, a non-linear response), the test apparatus shall be set as close as possible to the
nominal value (which is also a tolerance limit) taking account of the uncertainty of
measurement, which depends on the apparatus used for the test (including the instruments
used to measure the values of the parameters).
+ 0
EXAMPLE: If the quantity is expressed numerically as 100% % and the test apparatus is
–5
capable of an overall uncertainty in the control of the parameter of ± 1 %, then the test
apparatus should be adjusted to maintain a target value of 99 %. If, on the other hand, the
+ 2,5
overall uncertainty is % , then the adjustment should be set to maintain a target value of
–2,5
97,5 %.
5.3 Quantity expressed as a range of values
Examples of forms of presentation:
a) From 18 °C to 28 °C

Relative humidity from 80 % to 100 %
From 1 h to 2 h
b) Return loss ≥55 dB
Attenuation ≤0,50 dB
NOTE The use of words in expressing a range may lead to ambiguity; for example the phrase "from 80 % to
100 %" may, for some readers, exclude the values of 80 and 100 while, for others, they may be included. The use
of symbols, for example >80 or ≥80, is generally less likely to be ambiguous and is therefore to be preferred.
The expression of a quantity as a range of values indicates that the value to which the test
apparatus is adjusted has only a small influence on the result of the test.
Where the uncertainty of the control of the parameter (including instrument errors) permits,
any desired value within the given range may be chosen. For example, if it is stated that the
temperature shall be from 18 °C to 28 °C, any value within this range can be used (but it is
not intended that the temperature should be programmed to vary over the range).

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6 Graphical symbols and terminology


The terminology used in the interpretation and preparation of fibre optic test and measure-

ment procedures shall be taken from IEC 60050-731.


Graphical symbols used for the preparation and interpretation of fibre optic test and

measurement procedures shall be selected where possible from IEC 60617.



7 Safety


The precautions for carrying out fibre optic measurements, as far as laser radiation is
concerned, are given in IEC 60825-1. Fibre optic components and systems may emit
hazardous radiation. This may occur
a) at sources;
b) in transmission systems during installation, during service or intentional interruption and
failure or unintentional interruption;
c) while measuring and testing.
For hazard evaluation, precautions and manufacturer's requirements, the relevant standards
are IEC 60825-1 and IEC 60825-2.
Other safety aspects are referred to in applicable test methods and other standards.
8 Calibration
8.1 General
The equipment used shall have a valid calibration certificate in accordance with the applicable
quality system for the period over which the testing is done. Preferably international or
national standards should be adopted (e.g. IEC 61315). The calibration should be traceable to
a national standard if available.
In cases where no calibration standard exists, the manufacturer or laboratory carrying out the
test shall state the uncertainty of the test equipment to their best knowledge.
8.2 Round robin calibration procedure
Where the uncertainty is unknown, it may be necessary to use a round robin calibra
...