IEC 60793-2-30:2015

IEC 60793-2-30 ®
Edition 4.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 2-30: Product specifications – Sectional specification for category A3
multimode fibres
Fibres optiques –
Partie 2-30: Spécifications de produits – Spécification intermédiaire pour
les fibres multimodales de catégorie A3

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IEC 60793-2-30 ®
Edition 4.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 2-30: Product specifications – Sectional specification for category A3

multimode fibres
Fibres optiques –
Partie 2-30: Spécifications de produits – Spécification intermédiaire pour

les fibres multimodales de catégorie A3

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-1008-8

– 2 – IEC 60793-2-30:2015 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Specifications . 7
3.1 General . 7
3.2 Dimensional requirements . 7
3.3 Mechanical requirements . 8
3.4 Transmission requirements . 8
3.5 Environmental requirements . 9
Annex A (normative) Specifications for sub-category A3a multimode fibres . 10
A.1 General . 10
A.2 Dimensional requirements . 10
A.3 Mechanical requirements . 10
A.4 Transmission requirements . 10
A.5 Environmental requirements . 11
Annex B (normative) Specifications for sub-category A3b multimode fibres . 12
B.1 General . 12
B.2 Dimensional requirements . 12
B.3 Mechanical requirements . 12
B.4 Transmission requirements . 12
B.5 Environmental requirements . 13
Annex C (normative) Specifications for sub-category A3c multimode fibres . 14
C.1 General . 14
C.2 Dimensional requirements . 14
C.3 Mechanical requirements . 14
C.4 Transmission requirements . 14
C.5 Environmental requirements . 15
Annex D (normative) Specifications for sub-category A3d multimode fibres . 17
D.1 General . 17
D.2 Dimensional requirements . 17
D.3 Mechanical requirements . 17
D.4 Transmission requirements . 17
D.5 Environmental requirements . 18
Annex E (normative) Specifications for sub-category A3e multimode fibres . 20
E.1 General . 20
E.2 Dimensional requirements . 20
E.3 Mechanical requirements . 20
E.4 Transmission requirements . 20
E.5 Environmental requirements . 21
Annex F (normative) Specifications for sub-category A3f multimode fibres . 23
F.1 General . 23
F.2 Dimensional requirements . 23
F.3 Mechanical requirements . 23
F.4 Transmission requirements . 23
F.5 Environmental requirements . 24
Annex G (normative) Specifications for sub-category A3g multimode fibres . 26

G.1 General . 26
G.2 Dimensional requirements . 26
G.3 Mechanical requirements . 26
G.4 Transmission requirements . 26
G.5 Environmental requirements . 27

Table 1 – Relevant dimensional attributes and measurement methods . 7
Table 2 – Dimensional requirements common to all category A3 fibres . 8
Table 3 – Additional dimensional attributes required for each sub-category . 8
Table 4 – Relevant mechanical attributes and test methods . 8
Table 5 – Mechanical requirements to be specified for each sub-category . 8
Table 6 – Relevant transmission attributes and measurement methods . 9
Table 7 – Additional transmission attributes required for each sub-category . 9
Table 8 – Relevant environmental attributes and test methods . 9
Table A.1 – Dimensional requirements specific to A3a fibres . 10
Table A.2 – Mechanical requirements specific to A3a fibres . 10
Table A.3 – Transmission requirements specific to A3a fibres . 11
Table B.1 – Dimensional requirements specific to A3b fibres . 12
Table B.2 – Mechanical requirements specific to A3b fibres . 12
Table B.3 –Transmission requirements specific to A3b fibres . 13
Table C.1 – Dimensional requirements specific to A3c fibres . 14
Table C.2 – Mechanical requirements specific to A3c fibres . 14
Table C.3 –Transmission requirements specific to A3c fibres . 15
Table C.4 – Environmental exposure tests . 15
Table C.5 – Attributes measured . 16
Table D.1 – Dimensional requirements specific to A3d fibres . 17
Table D.2 – Mechanical requirements specific to A3d fibres . 17
Table D.3 – Transmission requirements specific to A3d fibres. 18
Table D.4 – Environmental exposure tests . 18
Table D.5 – Attributes measured . 19
Table E.1 – Dimensional requirements specific to A3e fibres . 20
Table E.2 – Mechanical requirements specific to A3e fibres . 20
Table E.3 – Transmission requirements specific to A3e fibres . 21
Table E.4 – Environmental exposure tests . 21
Table E.5 – Attributes measured . 22
Table F.1 – Dimensional requirements specific to A3f fibres . 23
Table F.2 – Mechanical requirements specific to A3f fibres . 23
Table F.3 – Transmission requirements specific to A3f fibres . 24
Table F.4 – Environmental exposure tests . 24
Table F.5 – Attributes measured . 25
Table G.1 – Dimensional requirements specific to A3g fibres . 26
Table G.2 – Mechanical requirements specific to A3g fibres . 26
Table G.3 – Transmission requirements specific to A3g fibres . 27
Table G.4 – Environmental exposure tests . 27
Table G.5 – Attributes measured. 28

– 4 – IEC 60793-2-30:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRES –
Part 2-30: Product specifications –
Sectional specification for category A3 multimode fibres

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60793-2-30 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This fourth edition cancels and replaces the third edition published in 2012 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– specified test specimen length and measurement details for core diameter and NA
ff
measurements have been added.
– two new sub-categories have been added
– NA is replaced by NA
th ff
The text of this standard is based on the following documents:
FDIS Report on voting
86A/1661/FDIS 86A/1662/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60793 series can be found, under the general title Optical fibres, 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

– 6 – IEC 60793-2-30:2015 © IEC 2015
OPTICAL FIBRES –
Part 2-30: Product specifications –
Sectional specification for category A3 multimode fibres

1 Scope
This part of IEC 60793-2 is applicable to sub-categories A3a, A3b, A3c, A3d, A3e, A3f and A3g.
These fibres are used or can be incorporated in different information transmission equipment,
other applications employing similar light transmitting techniques as well as fibre optic cables.
Three types of requirements apply to these fibres:
• general requirements, as defined in IEC 60793-2;
• specific requirements common to the category A3 multimode fibres covered in this standard
and which are given in Clause 3;
• particular requirements applicable to the individual sub-categories or specific applications
(e.g. automotive or industrial applications), which are defined in the normative sub-category
annexes.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
IEC 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures – Fibre
geometry
IEC 60793-1-21, Optical fibres – Part 1-21: Measurement methods and test procedures –
Coating geometry
IEC 60793-1-22, Optical fibres – Part 1-22: Measurement methods and test procedures –
Length measurement
IEC 60793-1-30, Optical fibres – Part 1-30: Measurement methods and test procedures – Fibre
proof test
IEC 60793-1-31, Optical fibres – Part 1-31: Measurement methods and test procedures –
Tensile strength
IEC 60793-1-40, Optical fibres – Part 1-40: Measurement methods and test procedures –
Attenuation
IEC 60793-1-41, Optical fibres – Part 1-41: Measurement methods and test procedures –
Bandwidth
IEC 60793-1-43, Optical fibres – Part 1-43: Measurement methods and test procedures –
Numerical aperture
IEC 60793-1-46, Optical fibres – Part 1-46: Measurement methods and test procedures –
Monitoring of changes in optical transmittance
IEC 60793-1-50, Optical fibres – Part 1-50: Measurement methods and test procedures – Damp
heat (steady state) tests
IEC 60793-1-51, Optical fibres – Part 1-51: Measurement methods and test procedures – Dry
heat (steady state) tests
IEC 60793-1-52, Optical fibres – Part 1-52: Measurement methods and test procedures –
Change of temperature tests
IEC 60793-2, Optical fibres –Part 2: Product specifications – General
IEC TR 62048:2014, Optical fibres – Reliability – Power law theory
3 Specifications
3.1 General
The fibre shall consist of a glass core and a plastic cladding in accordance with the definition
in IEC 60793-2. For sub-categories A3f and A3g, a glass inner cladding between core and
cladding is present.
3.2 Dimensional requirements
Relevant dimensional attributes and measurement methods are given in Table 1.
Dimensional requirements common to all sub-categories are indicated in Table 2.
Table 3 lists additional dimensional attributes that shall be specified for each sub-category.
Table 1 – Relevant dimensional attributes and measurement methods
Attributes Measurement methods
a
IEC 60793-1-20
Core diameter
Core non-circularity IEC 60793-1-20
b
IEC 60793-1-20
Inner glass cladding
Cladding diameter IEC 60793-1-20
Core-cladding concentricity error IEC 60793-1-20
Coating diameter IEC 60793-1-21
Fibre length IEC 60793-1-22
a
Core diameter is specified at 850 nm ± 10 nm with a test specimen length of
2,0 m ± 0,2 m and a threshold value k which is defined in each sub-category
CORE
(see IEC 60793-1-20:2001, Method B).
b
Only relevant for sub-categories A3f and A3g

– 8 – IEC 60793-2-30:2015 © IEC 2015
Table 2 – Dimensional requirements common to all category A3 fibres
Attributes Unit Limits
a
Fibre length km
a
Length requirements vary and should be agreed between supplier and customer.

Table 3 – Additional dimensional attributes required for each sub-category
Attributes
Core diameter
Core non-circularity
a
Inner glass cladding
Cladding diameter
Core-cladding concentricity error
Coating diameter
a
Only relevant for sub-categories A3f and A3g

3.3 Mechanical requirements
Relevant mechanical attributes and test methods are given in Table 4.
Requirements to be specified for each sub-category are listed in Table 5.
Table 4 – Relevant mechanical attributes and test methods
Attributes Test methods
Tensile strength IEC 60793-1-31
(0,5 m specimen length)
Strain rate 3 %/min to
5 %/min
Proof test IEC 60793-1-30
Table 5 – Mechanical requirements to be specified for each sub-category
Attribute Unit
Proof stress level GPa
3.4 Transmission requirements
Relevant transmission attributes and measurement methods are given in Table 6.
Additional attributes required in the sub-categories are listed in Table 7.

Table 6 – Relevant transmission attributes and measurement methods
Attributes Measurement methods
a
IEC 60793-1-40
Attenuation coefficient
a
IEC 60793-1-41
Modal bandwidth
a,b
IEC 60793-1-43
Numerical aperture (NA )
ff
Change of optical transmission IEC 60793-1-46
a
When measuring attenuation, modal bandwidth and numerical aperture, the appropriate launching conditions
should be applied as specified in the corresponding measurement methods (IEC 60793-1-40, IEC 60793-1-41
and IEC 60793-1-43).
b
Numerical aperture (NA ) is specified at 850 nm with a test specimen length of 2,0 m ± 0,2 m, and a threshold
ff
value, k defined in each sub-category.
NA
Table 7 – Additional transmission attributes required for each sub-category
Attributes
Attenuation coefficient
Modal bandwidth
Numerical aperture
3.5 Environmental requirements
Relevant environmental attributes and test methods are given in Table 8.
Table 8 – Relevant environmental attributes and test methods
Attributes Test methods
Damp heat tests IEC 60793-1-50
Dry heat tests IEC 60793-1-51
Change of temperature tests IEC 60793-1-52

– 10 – IEC 60793-2-30:2015 © IEC 2015
Annex A
(normative)
Specifications for sub-category A3a multimode fibres
A.1 General
Clauses A.2 to A.5 contain particular requirements applicable to A3a fibres. Common
requirements, repeated here for ease of reference from the sectional specification, are noted
by an entry in the “Reference” column.
A.2 Dimensional requirements
Table A.1 contains dimensional requirements specific to A3a fibres.
Table A.1 – Dimensional requirements specific to A3a fibres
Attributes Unit Limits Reference
a
µm 200 ± 8 3.2
Core diameter
Table 1
Core non-circularity % ≤ 6 3.2
Cladding diameter 3.2
µm 300 ± 30
Core-cladding concentricity error µm ≤ 20 3.2
Coating diameter µm 900 ± 50 3.2
Fibre length km See 3.2 3.2
a
Using k of 0,5
CORE
A.3 Mechanical requirements
Table A.2 contains mechanical requirements specific to A3a fibres.
Table A.2 – Mechanical requirements specific to A3a fibres
Attribute Unit Limit Reference

Proof stress level GPa 3.3
≥ 0,345
NOTE The normative proof test stress value of 0,345 GPa equals about 0,5 % strain
or about 11,7 N force (for the largest allowed core diameter). For the relation between
these different units, see IEC TR 62048:2014, 7.4.

A.4 Transmission requirements
Table A.3 contains transmission requirements specific to A3a fibres.

Table A.3 – Transmission requirements specific to A3a fibres
Attributes Unit Limits Reference
Attenuation coefficient at 850 nm dB/km 3.4
≤10
Modal bandwidth at 850 nm MHz × km ≥5 3.4
a
Unitless 3.4
Numerical aperture (NA ) 0,40 ± 0,04
ff
Table 6
a
Using k of 0,5
NA
A.5 Environmental requirements
None.
– 12 – IEC 60793-2-30:2015 © IEC 2015
Annex B
(normative)
Specifications for sub-category A3b multimode fibres
B.1 General
Clauses B.2 to B.5 contain particular requirements applicable to A3b fibres. Common
requirements, repeated here for ease of reference from the sectional specification, are noted
by an entry in the “Reference” column.
B.2 Dimensional requirements
Table B.1 contains dimensional requirements specific to A3b fibres.
Table B.1 – Dimensional requirements specific to A3b fibres
Attributes Unit Limits Reference
a
µm 200 ± 8 3.2
Core diameter
Table 1
Core non-circularity % ≤ 6 3.2
Cladding diameter 3.2
µm 380 ±30
Core-cladding concentricity error µm ≤ 20 3.2
Coating diameter µm 600 ± 50 3.2
Fibre length km See 3.2 3.2
a
Using k of 0,5
CORE
B.3 Mechanical requirements
Table B.2 contains mechanical requirements specific to A3b fibres.
Table B.2 – Mechanical requirements specific to A3b fibres
Attributes Unit Limits Reference
Proof stress level GPa ≥ 0,345 3.3
NOTE The normative proof test stress value of 0,345 GPa equals about 0,5 % strain
or about 11,7 N force (for the largest allowed core diameter). For the relation between
these different units, see IEC TR 62048:2014, 7.4.

B.4 Transmission requirements
Table B.3 contains transmission requirements specific to A3b fibres.

Table B.3 –Transmission requirements specific to A3b fibres
Attributes Unit Limits Reference
Attenuation coefficient at 850 nm dB/km ≤ 10 3.4
Modal bandwidth at 850 nm 3.4
MHz × km ≥ 5
a
Unitless 3.4
Numerical aperture (NA ) 0,40 ± 0,04
ff
Table 6
a
Using k of 0,5
NA
B.5 Environmental requirements
None.
– 14 – IEC 60793-2-30:2015 © IEC 2015
Annex C
(normative)
Specifications for sub-category A3c multimode fibres
C.1 General
Clauses C.2 to C.5 contain particular requirements applicable to A3c fibres. Common
requirements, repeated here for ease of reference from the sectional specification, are noted
by an entry in the “Reference” column.
C.2 Dimensional requirements
Table C.1 contains dimensional requirements specific to A3c fibres.
Table C.1 – Dimensional requirements specific to A3c fibres
Attributes Unit Limits Reference
a
µm 200 ± 8 3.2
Core diameter
Table 1
Core non-circularity % ≤ 6 3.2
Cladding diameter 3.2
µm 230 ± 10
Core-cladding concentricity µm ≤ 20 3.2
error
Coating diameter 3.2
µm 500 ± 50
Fibre length km See 3.2 3.2
a
Using k of 0,5
CORE
C.3 Mechanical requirements
Table C.2 contains mechanical requirements specific to A3c fibres.
Table C.2 – Mechanical requirements specific to A3c fibres
Attributes Unit Limits Reference

Proof stress level GPa ≥ 0,345 3.3
NOTE The normative proof test stress value of 0,345 GPa equals about 0,5 % strain
or about 11,7 N force (for the largest allowed core diameter). For the relation between
these different units, see IEC TR 62048:2014, 7.4

C.4 Transmission requirements
Table C.3 contains transmission requirements specific to A3c fibres.

Table C.3 –Transmission requirements specific to A3c fibres
Attributes Unit Limits Reference
Attenuation coefficient at 850 nm dB/km ≤ 10 3.4
Modal bandwidth at 850 nm 3.4
MHz × km ≥ 5
a
Unitless 3.4
Numerical aperture (NA ) 0,40 ± 0,04
ff
Table 6
a
Using k of 0,5
NA
C.5 Environmental requirements
Table C.4 and Table C.5 contain environmental exposure tests and measurement methods
specific to A3c fibres. Test and measurements shall be documented in two forms:
– relevant environmental attributes, test methods and test conditions are given in Table C.4;
– measurements of a particular mechanical and transmission attribute that may change during
exposure to the environmental test are listed in Table C.5.
Table C.4 – Environmental exposure tests
Test condition Environment Test method Test condition
+85 °C, 85 % RH,
Damp heat IEC 60793-1-50 long term: 125 days;
short term: 10 days
+125 °C,
A
Dry heat IEC 60793-1-51 long term: 125 days;
short term: 10 days
T : –40 °C, T :+125 °C
Change of temperature IEC 60793-1-52
a b
+75 °C, 85 % RH,
Damp heat IEC 60793-1-50 long term: 125 days;
short term: 10 days
+85 °C,
B
Dry heat IEC 60793-1-51 long term: 125 days;
short term: 10 days
T : –40 °C, T :+85 °C
Change of temperature IEC 60793-1-52
a b
+70 °C, 85 % RH,
Damp heat IEC 60793-1-50
30 days
+70 °C,
C
Dry heat IEC 60793-1-51
30 days
T : –20 °C, T :+70 °C
Change of temperature IEC 60793-1-52
a b
Test condition A, B, or C and short-term or long-term test conditions should be agreed between supplier and
customer. Test conditions A and B are typical conditions for automotive applications.

– 16 – IEC 60793-2-30:2015 © IEC 2015
Table C.5 – Attributes measured
Attributes Unit Limits Reference
Change in optical dB/km
≤ 1,5
transmission at 850 nm
Tensile strength GPa at 15 % and 50 % 1,08 at 15 %
Weibull probability levels
1,18 at 50 %
These tests are normally conducted periodically as type-tests for a fibre design. Unless
otherwise indicated, the recovery period allowed between the completion of the environmental
exposure and measuring the attributes shall be as stated in the particular environmental test
method.
Annex D
(normative)
Specifications for sub-category A3d multimode fibres
D.1 General
Clauses D.2 to D.5 contain particular requirements applicable to A3d fibres. Common
requirements, repeated here for ease of reference from the sectional specification, are noted
by an entry in the “Reference” column.
D.2 Dimensional requirements
Table D.1 contains dimensional requirements specific to A3d fibres.
Table D.1 – Dimensional requirements specific to A3d fibres
Attributes Unit Limits Reference
a
µm 200 ± 8 3.2
Core diameter
Table 1
Core non-circularity % ≤ 6 3.2
Cladding diameter 3.2
µm 230 ± 10
Core-cladding concentricity µm ≤ 20 3.2
error
Coating diameter 3.2
µm 500 ± 50
Fibre length km See 3.2 3.2
a
Using k of 0,5
CORE
D.3 Mechanical requirements
Table D.2 contains mechanical requirements specific to A3d fibres.
Table D.2 – Mechanical requirements specific to A3d fibres
Attribute Unit Limit Reference

Proof stress level GPa ≥ 0,345 3.3
NOTE The normative proof test stress value of 0,345 GPa equals about 0,5 % strain
or about 11,7 N force (for the largest allowed core diameter). For the relation between
these different units, see IEC TR 62048:2014,7.4.

D.4 Transmission requirements
Table D.3 contains transmission requirements specific to A3d fibres.

– 18 – IEC 60793-2-30:2015 © IEC 2015
Table D.3 – Transmission requirements specific to A3d fibres
Attributes Unit Limits Reference
Attenuation coefficient at 850 nm dB/km ≤ 10 3.4

Modal bandwidth at 850 nm MHz over 100 m 3.4
≥ 100
a
Unitless 3.4
Numerical aperture (NA ) 0,35 ± 0,02
ff
Table 6
a
Using k of 0,5
NA
D.5 Environmental requirements
Table D.4 and Table D.5 contain environmental exposure tests and measurement methods
specific to A3d fibres. Test and measurements shall be documented in two forms:
– relevant environmental attributes, test methods and test conditions are given in Table D.4;
– measurements of a particular mechanical and transmission attribute that may change during
exposure to the environmental test are listed in Table D.5.
Table D.4 – Environmental exposure tests
Test condition Environment Test method Test condition
+85 °C, 85 % RH,
Damp heat IEC 60793-1-50 long term: 125 days;
short term: 10 days
+125 °C,
A
Dry heat IEC 60793-1-51 long term: 125 days;
short term: 10 days
T : –40 °C, T :+125 °C
Change of temperature IEC 60793-1-52
a b
+75 °C, 85 % RH,
Damp heat IEC 60793-1-50 long term: 125 days;
short term: 10 days
B +85 °C,
Dry heat IEC 60793-1-51 long term: 125 days;
short term: 10 days
T – T
Change of temperature IEC 60793-1-52
: 40 °C, :+85 °C
a b
+70 °C, 85 % RH,
Damp heat IEC 60793-1-50
30 days
+70 °C,
C
Dry heat IEC 60793-1-51
30 days
T : –20 °C, T :+70 °C
Change of temperature IEC 60793-1-52
a b
Test condition A, B, or C and short term or long term test conditions should be agreed between supplier and
customer. Test conditions A and B are typical conditions for automotive applications.

Table D.5 – Attributes measured
Attributes Unit Limits Reference
Change in optical dB/km
≤ 1,5
transmission at 850 nm
Tensile strength GPa at 15 % and 50 % 1,08 at 15 %
Weibull probability levels
1,18 at 50 %
These tests are normally conducted periodically as type-tests for a fibre design. Unless
otherwise indicated, the recovery period allowed between the completion of the environmental
exposure and measuring the attributes shall be as stated in the particular environmental test
method.
– 20 – IEC 60793-2-30:2015 © IEC 2015
Annex E
(normative)
Specifications for sub-category A3e multimode fibres
E.1 General
Clauses E.2 to E.5 contain particular requirements applicable to A3e fibres. Common
requirements, repeated here for ease of reference from the sectional specification, are noted
by an entry in the “Reference” column.
E.2 Dimensional requirements
Table E.1 contains dimensional requirements specific to A3e fibres.
Table E.1 – Dimensional requirements specific to A3e fibres
Attributes Unit Limits Reference
a
µm 200 ± 4 3.2
Core diameter
Table 1
Core non-circularity % ≤ 3 3.2
Cladding diameter 230 3.2
µm
Core-cladding concentricity error µm ≤ 5 3.2
Coating diameter µm 500 ± 30 3.2
Fibre length km See 3.2 3.2
a
Using k of 0,5
CORE
E.3 Mechanical requirements
Table E.2 contains mechanical requirements specific to A3e fibres.
Table E.2 – Mechanical requirements specific to A3e fibres
Attribute Unit Limit Reference

Proof stress level GPa ≥ 0,69 3.3
NOTE The normative proof test stress value of 0,69 GPa equals about 1,0 % strain or about 22,6 N force (for
the largest allowed core diameter). For the relation between these different units, see IEC TR 62048:2014, 7.4.

E.4 Transmission requirements
Table E.3 contains transmission requirements specific to A3e fibres.

Table E.3 – Transmission requirements specific to A3e fibres
Attributes Unit Limits Reference
Attenuation coefficient at 850 nm dB/km ≤ 8 3.4
Modal bandwidth at 850 nm 3.4
MHz × km ≥ 5
a
Unitless 3.4
Numerical aperture (NA ) 0,37 ± 0,02
ff
Table 6
a
Using k of 0,5
NA
E.5 Environmental requirements
Table E.4. and Table E.5 contain environmental exposure tests and measurement methods
specific to A3e fibres. Test and measurements shall be documented in two forms:
– relevant environmental attributes, test methods and test conditions are given in Table E.4;
– measurements of a particular mechanical and transmission attribute that may change during
exposure to the environmental test are listed in Table E.5.
Table E.4 – Environmental exposure tests
Test condition Environment Test method Test condition
+85 °C, 85 % RH,
Damp heat IEC 60793-1-50 Long term: 125 days;
Short term: 10 days
+125 °C,
A
Dry heat IEC 60793-1-51 Long term: 125 days;
Short term: 10 days
T : –40 °C, T :+125 °C
Change of temperature IEC 60793-1-52
a b
+75 °C, 85 % RH,
Damp heat IEC 60793-1-50 Long term: 125 days;
Short term: 10 days
B +85 °C,
Dry heat IEC 60793-1-51 Long term: 125 days;
Short term: 10 days
T T
Change of temperature IEC 60793-1-52
: –40 °C, :+85 °C
a b
+70 °C, 85 % RH,
Damp heat IEC 60793-1-50
30 days
+70 °C,
C
Dry heat IEC 60793-1-51
30 days
T : –20 °C, T :+70 °C
Change of temperature IEC 60793-1-52
a b
Test condition A, B, or C and short-term or long-term test conditions should be agreed between supplier and
customer. Test conditions A and B are typical conditions for automotive applications.

– 22 – IEC 60793-2-30:2015 © IEC 2015
Table E.5 – Attributes measured
Attributes Unit Limits Reference
Change in optical transmission dB/km
≤ 1,5
at 850 nm
Tensile strength GPa at 15 % and 50 % 1,08 at 15 %
Weibull probability
1,18 at 50 %
levels
These tests are normally conducted periodically as type-tests for a fibre design. Unless
otherwise indicated, the recovery period allowed between the completion of the environmental
exposure and measuring the attributes shall be as stated in the particular environmental test
method.
Annex F
(normative)
Specifications for sub-category A3f multimode fibres
F.1 General
Clauses F.2 to F.5 contain particular requirements applicable to A3f fibres. Common
requirements, repeated here for ease of reference from the sectional specification, are noted
by an entry in the “Reference” column.
F.2 Dimensional requirements
Table F.1 contains dimensional requirements specific to A3f fibres.
Table F.1 – Dimensional requirements specific to A3f fibres
Attributes Unit Limits Reference
a
3.2
Core diameter µm 50 ± 3
Table 1
Core non-circularity % 3.2
≤ 5
Inner glass cladding 3.2
µm 200 ± 4
Cladding diameter µm 230 ± 5 3.2
Core-cladding concentricity 3.2
µm ≤ 3
error
Coating diameter µm 500 ± 30 3.2
Fibre length km See 3.2 3.2
a
Using k of 0,025
CORE
F.3 Mechanical requirements
Table F.2 contains mechanical requirements specific to A3f fibres.
Table F.2 – Mechanical requirements specific to A3f fibres
Attribute Unit Limit Reference

Proof stress level GPa 3.3
≥ 1,03
NOTE The normative proof test stress value of 1,03 GPa
equals about 1,5 % strain or about 33,7 N force (for the
largest allowed inner cladding diameter). For the relation
between these different units, see IEC TR 62048:2014, 7.4.

F.4 Transmission requirements
Table F.3 contains transmission requirements specific to A3f fibres.
...