IEC 61753-086-6:2010

Fibre optic interconnecting devices and passive components - Performance standard - Part 086-6: Non-connectorized single-mode bidirectional 1 490 / 1 550 nm downstream and 1 310 nm upstream WWDM devices for category O - Uncontrolled environment

IEC 61753-086-6:2010 contains the minimum initial performance, test and measurement requirements and severities which a fibre optic pigtailed 1 490 / 1 550 nm downstream and 1 310 nm upstream wide wavelength division multiplexing (WWDM) passive optical network (PON) device must satisfy in order to be categorized as meeting the requirements of category O (uncontrolled environment), as defined in Annex A of IEC 61753-1:2007.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Norme de performance - Partie 086-6: Dispositifs WWDM unimodaux non connectorisés bidirectionnels 1 490 / 1 550 nm en voie descendante et 1 310 nm en voie montante pour la catégorie O - Environnement non contrôlé

La CEI 61753-086-6:2010 contient les sévérités et les exigences minimales initiales de performances, d'essais et de mesure auxquelles un dispositif de réseau optique passif (PON ) à répartition en longueur d'onde large (WWDM) 1 490 / 1 550 nm en voie descendante et 1 310 nm en voie montante muni de fibres amorces doit répondre afin d'être classé comme conforme aux exigences de la catégorie O (environnement non contrôlé), comme défini dans l'Annexe A de la CEI 61753-1:2007.

General Information

• Status: Published
• Publication Date: 13-Dec-2010
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 7 - TC 86/SC 86B/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 14-Dec-2010
• Completion Date: 15-Jan-2011

Overview

IEC 61753-086-6:2010 is an international performance standard established by the International Electrotechnical Commission (IEC). This standard specifies the minimum initial performance, test, and measurement requirements for non-connectorized, single-mode, bidirectional wide wavelength division multiplexing (WWDM) devices used in passive optical networks (PONs). Designed for category O environments-uncontrolled and potentially harsh conditions-this document ensures reliable operation of fibre optic pigtailed devices operating at:

• Downstream wavelengths: 1 490 nm and 1 550 nm
• Upstream wavelength: 1 310 nm

The standard defines necessary performance metrics to qualify devices used in WWDM PONs, critical for robust fiber optic communication systems in uncontrolled environments.

Key Topics

• Scope and Application: IEC 61753-086-6 targets fibre optic WWDM devices without connectors, focusing on single-mode fiber technology for bidirectional communication in passive optical networks.

• Performance Criteria: The standard outlines essential performance requirements including optical characteristics, physical dimensions, and environmental durability needed to comply with category O standards for uncontrolled environments.

• Test Methods: Tests are based on the IEC 61300 series, including vibration, shock, temperature-humidity cycling, torsion, fibre retention, and optical power handling. Measurements are conducted at key wavelength ranges consistent with ITU-T and IEEE standards, ensuring devices meet stringent operational conditions.

• Sample Handling: Detailed guidelines on sample size, sequencing, and grouping of tests are included to guarantee statistically relevant and reproducible results for device qualification.

• Documentation and Reporting: Comprehensive test reports must document all testing procedures and evidence of compliance to provide traceability and support quality assurance.

Applications

This standard is essential for manufacturers, developers, and quality assurance professionals in the fibre optics sector who design or validate WWDM PON passive components. Typical applications include:

• Passive Optical Network (PON) Infrastructure: Ensures WWDM devices achieve reliable bidirectional signal transmission for telecom operators deploying 1 490/1 550 nm downstream and 1 310 nm upstream links.

• Telecommunications Networks: Provides assurance that fibre optic interconnecting devices survive uncontrolled environmental conditions such as outdoor or indoor non-climate-controlled environments.

• Network Equipment Manufacturing: Assists manufacturers in adhering to internationally recognized performance benchmarks, facilitating global market acceptance.

• Quality Control and Certification: Supports conformity assessments for fibre optic passive components used in next-generation broadband access systems.

Related Standards

To fully apply and understand IEC 61753-086-6:2010, it is important to refer to related IEC and ITU-T standards:

• IEC 61753-1:2007: General guidance for fibre optic interconnecting device performance standards, defining environmental categories including category O.

• IEC 61300 Series: Provides basic test and measurement procedures for fibre optic interconnecting devices and passive components, covering optical and mechanical tests crucial for compliance.

• IEC 60793-2-50: Defines single-mode optical fibre types and cable constructions used in pigtail assemblies.

• ITU-T Recommendations G.983.3 and G.984.2: Define WWDM wavelength bands for PONs.

• IEEE 802.3ah-2004: Specifies Ethernet in the first mile, including passive optical network wavelength standards.

Conclusion

IEC 61753-086-6:2010 is a critical standard that ensures the performance and durability of non-connectorized single-mode bidirectional WWDM devices operating in uncontrolled environments. Adherence to this standard guarantees that fibre optic components used in PONs maintain optimal functionality across specified wavelength bands, meeting the rigorous requirements of modern telecom infrastructure. By complying with IEC 61753-086-6, manufacturers and network operators can improve system reliability, extend device lifespan, and minimize network failures in varied and challenging settings.

Standards Content (Sample)

IEC 61753-086-6 ®
Edition 1.0 2010-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 086-6: Non-connectorized single-mode bidirectional 1 490 / 1 550 nm
downstream and 1 310 nm upstream WWDM devices for category O –
Uncontrolled environment
Dispositifs d'interconnexion et composants passifs à fibres optiques – Norme
de performance –
Partie 086-6: Dispositifs WWDM unimodaux non connectorisés bidirectionnels
1 490 / 1 550 nm en voie descendante et 1 310 nm en voie montante pour la
catégorie O – Environnement non contrôlé

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IEC 61753-086-6 ®
Edition 1.0 2010-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 086-6: Non-connectorized single-mode bidirectional 1 490 / 1 550 nm
downstream and 1 310 nm upstream WWDM devices for category O –
Uncontrolled environment
Dispositifs d'interconnexion et composants passifs à fibres optiques – Norme
de performance –
Partie 086-6: Dispositifs WWDM unimodaux non connectorisés bidirectionnels
1 490 / 1 550 nm en voie descendante et 1 310 nm en voie montante pour la
catégorie O – Environnement non contrôlé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
P
CODE PRIX
ICS 33.180.20 ISBN 978-2-88912-299-8
– 2 – 61753-086-6 Ó IEC:2010
CONTENTS
FOREW ORD . 3
1 Sc o pe . 5
2 Normative references . 5
3 Test . 6
4 Test report . 6
5 Performance requirements. 6
5.1 Reference components . 6
5.2 Dimensions . 6
5.3 Sample size, sequencing and grouping. 7
5.4 Test details and requirements . 7
Annex A (normative) Sample size, sequencing and grouping . 11
Annex B (informative) General information for 1 490 / 1 550 nm downstream and 1
310 nm upstream PON WWDM device . 12
Bibliography . 14

Figure B.1 – Example of 1 490 / 1 550 nm downstream and 1 310 nm upstream WWDM
at central office and customer side – Separate video detection inside the ONU . 12
Figure B.2 – Example of 1 490 / 1 550 nm downstream and 1 310 nm upstream WWDM
at central office side – Integrated video detection inside the ONU . 13

Table 1 – Test details and requirements . 7
Table A.1 – Sample size and sequencing of tests . 11

61753-086-6 Ó IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 086-6: Non-connectorized single-mode bidirectional 1 490 / 1 550 nm
downstream and 1 310 nm upstream WWDM devices for category O –
Uncontrolled environment
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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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 61753-086-6 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3094/FDIS 86B/3132/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.

– 4 – 61753-086-6 Ó IEC:2010
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The list of all parts in the IEC 61753 series, under the general title Fibre optic interconnecting
devices and passive components performance standards, 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.
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.
NOTICE
This document contains material that is Copyright © 2006, Telcordia Technologies, Inc.
("Telcordia"). All rights reserved.
The reader is advised that this IEC document and Telcordia source(s) may differ, and the
context and use of said material in this IEC document may differ from that of Telcordia.
TELCORDIA MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED,
WITH RESPECT TO THE SUFFICIENCY, ACCURACY, OR UTILITY OF ANY INFORMATION
OR OPINION CONTAINED HEREIN. ANY USE OF OR RELIANCE UPON SAID
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LIABLE FOR ANY DAMAGE OR INJURY INCURRED BY ANY PERSON ARISING OUT OF
THE SUFFICIENCY, ACCURACY, OR UTILITY OF ANY INFORMATION OR OPINION
CONTAINED HEREIN.
61753-086-6 Ó IEC:2010 – 5 –
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 086-6: Non-connectorized single-mode bidirectional 1 490 / 1 550 nm
downstream and 1 310 nm upstream WWDM devices for category O –
Uncontrolled environment
1 Scope
This part of IEC 61753 contains the minimum initial performance, test and measurement
requirements and severities which a fibre optic pigtailed 1 490 / 1 550 nm downstream and
1 310 nm upstream wide wavelength division multiplexing (WWDM) passive optical network
(PON) device must satisfy in order to be categorized as meeting the requirements of category
O (uncontrolled environment), as defined in Annex A of IEC 61753-1:2007.
Annex B of this standard provides information concerning the function of the 1 490 / 1 550 nm
downstream and 1 310 nm upstream WWDM.
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 60793-2-50, Optical fibre cables – Part 2-50: Indoor cables – Family specification for
simplex and duplex cables for use in terminated cable assemblies
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
IEC 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-5: Tests – Torsion
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-14: Tests – Optical power handling and damage
threshold characterization
IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-19: Tests – Damp heat (steady state)
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-42: Tests – Static side load for connectors

– 6 – 61753-086-6 Ó IEC:2010
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic
devices
IEC 61300-2-48, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-48: Tests – Temperature-humidity cycling
IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-2: Examinations and measurements – Polarization
dependent loss in a single-mode fibre optic device
IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-6: Examinations and measurements – Return loss
IEC 61300-3-7, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-7: Examinations and measurements – Wavelength
dependence of attenuation and return loss of single mode components
IEC 61300-3-20, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-20: Examinations and measurements – Directivity of
fibre optic branching devices
IEC 61753-1:2007, Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standard
3 Test
Unless otherwise specified, all test methods are in accordance with the IEC 61300 series.
Each test defines the number of samples to be evaluated. The samples shall have pigtails of
single-mode fibres as per IEC 60793-2-50 type B 1.1 or B 1.3 in either coated fibres (primary
and secondary) or reinforced cable format. All measurements shall be carried out at normal
room conditions, unless otherwise stated.
All tests shall be carried out over the operating wavelength ranges of 1 260 nm to 1 360 nm,
1 480 nm to 1 500 nm, and 1 550 nm to 1 560 nm, unless otherwise specified.
NOTE 1 310 nm, 1 490 nm and 1 550 nm are the nominal or centre wavelengths, stated for the ranges 1 260 nm
to 1 360 nm, 1 480 nm to 1 500 nm and 1 550 nm to 1 560 nm as defined in ITU-T Recommendations G.983.3 and
G.984.2 and IEEE standard 802.3ah-2004.
4 Test report
Fully documented test reports and supporting evidence shall be prepared and be available for
inspection as evidence that the tests have been carried out and complied with.
5 Performance requirements
5.1 Reference components
The testing for these components does not require the use of reference components.
5.2 Dimensions
Dimensions shall comply with either an appropriate IEC interface standard or with those given
in appropriate manufacturers drawings, where the IEC interface standard does not exist or
cannot be used.
61753-086-6 Ó IEC:2010 – 7 –
5.3 Sample size, sequencing and grouping
Sample sizes for the tests are defined in Annex A of this document.
Test groups and test sequences shall be performed in sequential order as shown in Annex A.
The test sequence shown in Annex A shall be followed.
5.4 Test details and requirements
For test details and requirements, please see Table 1.
Table 1 – Test details and requirements
No. Test Requirement Details
1 Insertion loss Launch ³ 2 m
£ 0,8 dB
(Attenuation) patchcord
Insertion loss shall be met over the
length:
operating wavelength ranges.
IEC 61300-3-7
Source type: Unpolarised
Launch The wavelength of the source
conditions: shall be longer than cut-off
wavelength of the fibre.
Other Test results shall be obtained
requirements: under measurement
uncertainty of ± 0,1 dB.
2 Wavelength isolation ³ 18 dB between wavelength ranges Launch ³ 2 m
1 480 nm to 1 500 nm and 1 550 nm patchcord
IEC 61300-3-7 to 1 560 nm; length:
³ 30 dB between wavelength ranges Source type: Unpolarised
1 260 nm to 1 360 nm and 1 550 nm Launch The wavelength of the source
to 1 560 nm; conditions: shall be longer than the cut-off
wavelength of the fibre.
Other Test results shall be obtained
requirements: under measurement
uncertainty of ±1 dB.
3 Directivity Source: Laser diode (LD)
³ 50 dB Grade U
Other Test results shall be obtained
IEC 61300-3-20
Directivity shall be met over the
requirements: under measurement
operating wavelength ranges.
uncertainty of ± 1 dB.
All ports not under test shall be
terminated to avoid unwanted
reflections contributing to the
measurement.
The directivity shall be
measured between any pair of
input or output ports.
4 Return loss ³ 50 dB Grade U Source: LD

Other Test results shall be obtained
IEC 61300-3-6
Return loss shall be met over the
requirements: under measurement
specified wavelength ranges.
uncertainty of ±1 dB.
All ports not under test shall be
terminated to avoid unwanted
reflections contributing to the
measurement.
5 Polarisation dependent £ 0,2 dB Launch ³ 2 m
loss (PDL) patchcord
length:
Polarisation dependent loss shall be
IEC 61300-3-2
met over the specified wavelength Source type: LD
ranges.
Other Test results shall be obtained
requirements: under measurement
uncertainty of ± 0,05 dB.
– 8 – 61753-086-6 Ó IEC:2010
Table 1 (continued)
No. Test Requirement Details
6 Optical ower handling ³ 300 mW (sum of power at the Source type LD
and damage threshold
three wavelength ranges at the
Max. power to 300 mW (+ ~25 dBm)
characterization
same time)
be applied at
wavelength
IEC 61300-2-14, During and on completion of the test
range 1 550 nm
method 2 the insertion loss limits of Test No. 1
to 1 560 nm:
shall be met.
Max. power to 10 mW (+ 10 dBm)

be applied at
After the test the isolation limits of
wavelength
Test No. 2 shall be met.
ranges 1 480 nm
to 1 500 nm and
During and on completion of the test
1 260 nm to
the return loss limits of Test No. 4
1 360 nm:
shall be met.
Power 3 dB
increments:
Test duration: 0,5 h at each power level.
Other Test results shall be obtained
requirements: under insertion loss
measurement uncertainty of
±0,1 dB.
Test results shall be obtained
under return loss
measurement uncertainty of
±1 dB.
7 Damp heat During and on completion of the test Temperature: + 75 °C ± 2 °C
(steady state) the insertion loss limits of Test No. 1
Humidity:
90 % RH ± 5 % RH
shall be met.
Duration of the 168 h
IEC 61300-2-19
exposure:
After the test the isolation limits of
Maximum 1 h
Test No. 2 shall be met.
sampling interval
during the test:
During and on completion of the test
Measurements Insertion loss shall be
the return loss limits of Test No. 4
required: measured before, during and
shall be met.
after the test.
Return loss shall be measured
before, during and after the
test.
8 Vibration After the test the insertion loss limits Frequency 10 Hz - 55 Hz
of Test No. 1 shall be met. range:
IEC 61300-2-1 Constant 1,52 mm
After the Test the isolation limits of
vibration
test No. 2 shall be met.
amplitude:
Number of 15
After the test the return loss limits of
cycles
Test No. 4 shall be met.
(10 Hz - 55 Hz -
10 Hz):
Frequency 1 octave/min
change:
Number of axes: 3 orthogonal
Duration per 2 h
axis:
Measurements Insertion loss shall be
required: measured before and after the
test.
Return loss shall be measured
before and after the test.
61753-086-6 Ó IEC:2010 – 9 –
Table 1 (continued)
No. Test Requirement Details
9 Shock After the test the insertion loss limits Acceleration 500 g
n
of Test No. 1 shall be met. force:
IEC 61300-2-9
Number of 12
After the test the isolation limits of shocks:
Test No. 2 shall be met.
Number of axes: 3 main axes, perpendicular on

each other
After the test the return loss limits of
Duration shock: 1 ms
Test No. 4 shall be met.
Pulse: Half sine
Number of 2 per axis and direction (two in
shocks: each direction)
Measurements Insertion loss shall be
required: measured before and after the
test.
Return loss shall be measured
before and after the test.
10 Change of temperature During and on completion of the test High + 75 °C ± 2 °C
the insertion loss limits of Test No. 1 temperature:
IEC 61300-2-22 shall be met.
Low - 40 °C ± 2 °C
temperature:
After the test the isolation limits of
Number of 10
Test No. 2 shall be met.
cycles:
Rate of 1 °C/min
During and on completion of the test
temperature
the return loss limits of Test No. 4
change:
shall be met.
Duration at 1 h
extreme
temperatures:
Maximum 0,5 h
sampling interval
during the test:
Measurements Insertion loss shall be
required: measured before, during and
after the test.
Return loss shall be measured
before, during and after the
test.
11 Temperature humidity During and on completion of the test High + 85 °C ± 2 °C
cycling the insertion loss limits of Test No. 1 temperature:
shall be met.
Low - 40 °C ± 2 °C
IEC 61300-2-48
temperature:
After the test the isolation limits of
Humidity at high 85 % RH ± 5 % RH
Test No. 2 shall be met.
temperature:
Number of 42
During and on completion of the test
cycles:
the return loss limits of Test No. 4
Rate of 1 °C/min
shall be met.
temperature
change:
Duration at 1 h
extreme
temperatures:
Maximum 0,5 h
sampling interval
during the test:
Measurements Insertion loss shall be
required: measured before, during and
after the test.
Return loss shall be measured
before, during and after the
test.
– 10 – 61753-086-6 Ó IEC:2010
Table 1 (continued)
No. Test Requirement Details
12 Flexing of the strain After the test the insertion loss limits Magnitude of the 5,0 N ± 0,5 N for reinforced
relief of fibre optic of Test No. 1 shall be met. load:
cable,
devices
2,0 N ± 0,2 N for primary and
After the test the isolation limits of
secondary coated fibres
IEC 61300-2-44 Test No. 2 shall be met.
Rate of load 0,5 N/s for reinforced cable

application:
After the test the return loss limits of
Load application 0,2 m from end of device
Test No. 4 shall be met.
point:
Number of 30
cycles:
Measurements Insertion loss shall be
required: measured before and after the
test.
Return loss shall be measured
before and after the test.
13 Torsion/twist After the test the insertion loss limits Magnitude of the
5,0 N ± 0,5 N for reinforced
of Test No. 1 shall be met. load:
cable,
IEC 61300-2-5
2,0 N ± 0,2 N for primary and
After the test the isolation limits of
secondary coated fibres
Test No. 2 shall be met.
Number of 30
cycles:
After the test the return loss limits of
Measurements Insertion loss shall be
Test No. 4 shall be met.
required measured before and after the
test.
Return loss shall be measured
before and after the test.
14 Static side load After the test the insertion loss limits Magnitude of the
5,0 N ± 0,5 N for reinforced
of Test No. 1 shall be met. load:
cable,
IEC 61300-2-42
2,3 N ± 0,1 N for primary and
After the test the isolation limits of
secondary coated fibres
Test No. 2 shall be met.
Load application 0,3 m from the end of device

point:
After the test the return loss limits of
Number of axes: 2 mutually perpendicular
Test No. 4 shall be met.
directions
Load rate: 0,5 N/s
Duration of the 5s at 5,0 N for reinforced
load: cable,
5s at 2,3 N for primary and
secondary coated fibres
Measurements Insertion loss shall be
required: measured before and after the
test.
Return loss shall be measured
before and after the test.
15 Fibre/cable retention After the test the insertion loss limits Magnitude of the 10 N ± 1 N for reinforced cable
of Test No. 1 shall be met. load:
5,0 N ± 0,5 N for primary and
IEC 61300-2-4
secondary coated fibres
After the test the isolation limits of
Load application 0,3 m from the end of device
Test No. 2 shall be met.
point:
Load rate: 0,5 N/s
After the test the return loss limits of
Duration of the 120 s at 10 N
Test No. 4 shall be met.
load: 60 s at 5 N
Measurements Insertion loss shall be
required: measured before and after the
test.
Return loss shall be measured
before and after the test.
61753-086-6 Ó IEC:2010 – 11 –
Annex A
(normative)
Sample size, sequencing and grouping

Test groups and sequences shall be performed in sequential order. The samples are sourced
as defined in Table A.1.
Table A.1 – Sample size and sequencing of tests
Sequence Test from which
Test Sample size Group
number samples are sourced
1 Insertion loss 12 New 1
2 Total channel isolation 12 1
3 Directivity 12 2
4 Return loss 12 3
5 Polarization dependent loss 12 4
6 Optical power handling and 12 5
damage threshold
characterization
7 Damp heat (steady state) 12 6
8 Vibration 12 7
9 Shock 12 8
10 Change of temperature 12 9
11 Temperature humidity cycling 12 10
12 Flexing of the strain relief of fibre 12 11
optic devices
13 Torsion/twist 12 12
14 Static side load 12 13
15 Fibre/cable retention 12 14

– 12 – 61753-086-6 Ó IEC:2010
Annex B
(informative)
General information for 1 490 / 1 550 nm downstream
and 1 310 nm upstream PON WWDM device

The 1 490 / 1 550 nm downstream and 1 310 nm upstream PON WWDM devices are used
inside the PON for facilitating the transport of downstream traffic and the separate analogue
radio frequency (RF) overlaid video (CATV) signal from the central office (CO) optical line
terminal (OLT) with the upstream signal from the optical network unit (ONU) installed at the
premises. They also can be used to combine and separate the downstream and upstream
traffic at the customer ONU.
They multiplex and demultiplex the voice, data and CATV:
– 1 310 nm channel for Data/Voice upstream
– 1 490 nm channel for Data/Voice downstream
– 1 550 nm channel for CATV
Figure B.1 and B.2 shows an example for application of 1 490 / 1 550 nm downstream and
1 310 nm upstream WWDM devices at central office and customer side.
Bidirectional transceiver (co) Bidirectional transceiver (ont)
1 490 1 490
PON splitter
1 490 and 1 550 1 490 and 1 550
1 310 1 310
1 310 1 310
1 550 1 550
Tripleplay WDM (co) Tripleplay WDM (ont)
Transmitter analogue catv (co) Analogue receiver (ont)
OLT ONU
IEC  2818/10
Figure B.1 – Example of 1 490 / 1 550 nm downstream and 1 310 nm upstream WWDM
at central office and customer side – Separate video detection inside the ONU

61753-086-6 Ó IEC:2010 – 13 –
Bidirectional transceiver (co)
1 490
PON splitter
1 310
1 490 and 1 550 1 490 and 1 550
1 310 1 310
1 550
Tripleplay WDM (co)
Tripleplay transceiver (ont)
Transmitter analogue catv (co)
OLT
ONU
IEC  2819/10
Figure B.2 – Example of 1 490 / 1 550 nm downstream and 1 310 nm upstream WWDM
at central office side – Integrated video detection inside the ONU
NOTE Typically the so called triple-play device in the OLT is subjected to Category C as the OLT is used inside
the CO. Depending whether the ONU is installed inside or outside the premises, the device is subjected to either
Category C or Category O.
– 14 – 61753-086-6 Ó IEC:2010
Bibliography
IEC 62074-1, Fibre optic WDM devices – Part 1: Generic specification
ITU-T Recommendation G.983.3, A broadband optical access system with increased service
capability by wavelength allocation
ITU-T Recommendation G.984.2, Gigabit-capable Passive Optical Networks (GPON): Physical
Media Dependent (PMD) layer specification
ITU-T Recommendation G.671, Transmission characteristics of optical components and
subsystems
IEEE Std 802.3ah.-2004, IEEE Standard for Information technology. Telecommunications and
...