IEC 61753-089-2:2013

IEC 61753-089-2 ®
Edition 1.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 089-2: Non-connectorized single-mode bidirectional OTDR monitoring
WWDM devices for category C – Controlled environment

Dispositifs d’interconnexion et composants passifs à fibres optiques – Norme
de performance –
Partie 089-2: Dispositifs WWDM de contrôle de type OTDR, bidirectionnels,
unimodaux, non connectorisés pour la catégorie C – Environnement contrôlé

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IEC 61753-089-2 ®
Edition 1.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 089-2: Non-connectorized single-mode bidirectional OTDR monitoring

WWDM devices for category C – Controlled environment

Dispositifs d’interconnexion et composants passifs à fibres optiques – Norme

de performance –
Partie 089-2: Dispositifs WWDM de contrôle de type OTDR, bidirectionnels,

unimodaux, non connectorisés pour la catégorie C – Environnement contrôlé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-3143-2

– 2 – IEC 61753-089-2:2013  IEC:2013
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Test . 6
5 Test report . 7
6 Performance requirements . 7
6.1 Reference components . 7
6.2 Dimensions . 7
6.3 Sample size . 7
6.4 Test details and requirements . 7
Annex A (normative) Sample size . 12
Annex B (Informative) General information for OTDR monitoring WWDM device . 13
Bibliography . 15

Figure B.1 – Functional principle of a monitoring WWDM device . 13
Figure B.2 – Example for the integration of the OTDR monitoring WWDM at central
office and customer side . 14

Table 1 – Test details and requirements (1 of 5) . 7
Table A.1 – Sample size . 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 089-2: Non-connectorized single-mode bidirectional
OTDR monitoring WWDM devices for category C –
Controlled 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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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 61753-089-2 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components of IEC technical committee 86: Fibre optics.
This bilingual version (2016-01) corresponds to the monolingual English version, published in
2013-03.
The text of this standard is based on the following documents:
CDV Report on voting
86B/3454/CDV 86B/3529/RVC
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 – IEC 61753-089-2:2013  IEC:2013
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 61753 series, under the general title Fibre optic interconnecting
devices and passive components – Performance standard, 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.
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 089-2: Non-connectorized single-mode bidirectional
OTDR monitoring WWDM devices for category C –
Controlled environment
1 Scope
This part of IEC 61753 contains the minimum initial performance, test and measurement
requirements and severities which a fibre optic pigtailed wide wavelength division multiplexing
(WWDM) device for monitoring passive optical networks (PON) using an optical time-domain
reflectometer (OTDR) satisfies in order to be categorized as meeting the requirements of
category C (controlled environments), as defined in Annex A of IEC 61753-1:2007.
Annex B of this standard provides information concerning the principle and function of the
OTDR monitoring WWDM.
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 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 61300-2-9, 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 – High optical power
IEC 61300-2-17, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-17: Tests – Cold
IEC 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
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 – IEC 61753-089-2:2013  IEC:2013
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 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-2: Examination 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: Examination and measurements – Return loss
IEC 61300-3-7, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-7: Examination 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: Examination 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
3 Terms and definitions
For the purposes of this document, the following terms and definitions, as well as those given
in IEC 62074-1, apply.
3.1
OTDR monitoring WWDM device
WWDM device for monitoring PON using an OTDR that has three ports
Note 1 to entry: Signal wavelengths are transmitted between the common port and the optical line terminal (OLT)
port. OTDR wavelengths are transmitted between the common port and the OTDR port
Note 2 to entry: Annex B of this standard provides information concerning the function of the OTDR monitoring
WWDM device.
4 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 used for each test are
intended to be previously unstressed new samples but may also be selected from previously
used samples if desired. The samples shall have pigtails of single-mode fibres as per
IEC 60793-2-50, category B 1.1, B 1.3 or B 6 in either coated fibres (primary and secondary)
or reinforced cable format. All measurements shall be carried out at standard atmosphere
condition defined in IEC 61300-1, unless otherwise stated.
All tests shall be carried out over the signal wavelength ranges of 1 260 nm to 1 360 nm,
1 480 nm to 1 500 nm, 1 550 nm to 1 560 nm, and over the OTDR wavelength range,
1 620 nm to 1 630 nm or 1 645 nm to 1 655 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 [1]
and G.984.2 [2] and IEEE standard 802.3ah-2004 [3].
—————————
References in square brackets refer to the Bibliography.

5 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.
6 Performance requirements
6.1 Reference components
The testing for these components does not require the use of reference components.
6.2 Dimensions
Dimensions shall comply with those given in appropriate manufacturers’ drawings.
6.3 Sample size
Sample sizes for the tests are defined in Annex A.
6.4 Test details and requirements
Table 1 – Test details and requirements (1 of 5)
No. Test Requirement Details
1 Insertion loss Launch
≥ 2 m
≤ 0,8 dB
(attenuation) patchcord
Insertion loss shall be met between
length:
common port and OLT port for the
IEC 61300-3-7
Source: Unpolarized.
signal wavelength range and
Launch The wavelength of the
between common port and OTDR
conditions: source shall be longer than
port for the OTDR wavelength range
cut-off wavelength of the
fibre.
Measurement Test results shall be
uncertainty: obtained under
measurement uncertainty of
± 0,1 dB
2 Wavelength Isolation Launch
≥ 20 dB ≥ 2 m
patchcord
IEC 61300-3-7 length:
Wavelength isolation shall be
met between common port and Source: Unpolarized.
OLT port for the OTDR
Launch The wavelength of the
wavelength range and between conditions: source shall be longer than
common port and OTDR port for
cut-off wavelength of the
the signal wavelength range
fibre.
Measurement Test results shall be
uncertainty: obtained under
measurement uncertainty of
± 1 dB
3 Directivity Source type: Laser diode (LD)
≥ 50 dB Grade U between OLT
port and OTDR port.
Measurement Test results shall be
IEC 61300-3-20
uncertainty: obtained under
Directivity shall be met over the
measurement uncertainty of
specified wavelength ranges.
± 1 dB
Other All ports not under test
requirements: shall be terminated to avoid
unwanted reflections
contributing to the
measurement
– 8 – IEC 61753-089-2:2013  IEC:2013
Table 1 (2 of 5)
No. Test Requirement Details
4 Return loss Source type: Laser diode (LD)
≥ 50 dB Grade U
Measurement Test results shall be
IEC 61300-3-6
Return loss shall be met over the
uncertainty: obtained under
specified wavelength ranges
measurement uncertainty
of ± 1 dB.
Other All ports not under test
requirements: shall be terminated to avoid
unwanted reflections
contributing to the
measurement
5 Polarization Launch
≤ 0,2 dB  ≥ 2 m
dependent loss (PDL) patchcord
length:
Polarization dependent loss shall
IEC 61300-3-2
be met over the specified Source type: Laser diode (LD)

wavelength ranges
Measurement Test results shall be
uncertainty: obtained under
measurement uncertainty
of ± 0,05 dB
6 High optical power Source type: Laser diode (LD)
≥ 300 mW (max. power at the
single wavelength on the
Max. power to
300 mW (+ ~25 dBm)
IEC 61300-2-14 wavelength ranges, at the same
be applied at
time).
wavelength
1 550 nm and
During and on completion of the
wavelength
test the insertion loss limits of
range 1 620
test No. 1 shall be met.
nm to 1630 nm
(1 650 nm to
After the test the wavelength
1 660 nm):
isolation limits of test No. 2 shall
Max. power to 10 mW (+ 10 dBm)
be met.
be applied at
wavelength
During and on completion of the
1 490 nm and
test the return loss limits of test
1 310 nm:
No. 4 shall be met
Temperature:
60 °C ± 2° C
Measurement Test results shall be
uncertainty: obtained under insertion
loss measurement
uncertainty of
± 0,1 dB.
Test results shall be
obtained under return loss
measurement uncertainty
of ± 1 dB
7 Cold After the test the insertion loss Temperature: - 10 °C ± 2 °C
limits of test No. 1 shall be met.
Duration of the 96 h
IEC 61300-2-17
exposure:
In addition the insertion loss
Maximum 1 h
during the test shall be within
sampling
± 0,3 dB from the initial value.
interval during
the test:
After the test the wavelength
Measurements Insertion loss shall be
isolation limits of test No. 2 shall
required: measured before, during
be met.
and after the test.
Return loss shall be
During and on completion of the
measured before, during
test the return loss limits of test
and after the test
No. 4 shall be met
Table 1 (3 of 5)
No. Test Requirement Details
8 Dry heat – After the test the insertion loss Temperature:
+ 60 °C ± 2 °C
High temperature limits of test No. 1 shall be met.
Duration of the 96 h
endurance
exposure:
In addition the insertion loss
Maximum 1 h
IEC 61300-2-18 during the test shall be within
sampling interval
± 0,3 dB from the initial value.
during the test:
After the test the wavelength
Measurements Insertion loss shall be
isolation limits of test No. 2 shall
required: measured before, during
be met.
and after the test.
Return loss shall be
During and on completion of the
measured before, during
test the return loss limits of test
and after the test
No. 4 shall be met
9 Change of After the test the insertion loss High
+ 60 °C ± 2 °C
temperature limits of test No. 1 shall be met. temperature::

Low
- 10 °C ± 2 °C
IEC 61300-2-22 In addition the insertion loss
temperature:
during the test shall be within
Number of 5
± 0,3 dB from the initial value.
cycles:
Rate of 1 °C/min
After the test the wavelength
temperature
isolation limits of test No. 2 shall
change:
be met.
Duration at 1 h
extreme
During and on completion of the
temperatures:
test the return loss limits of test
No. 4 shall be met
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 Damp heat After the test the insertion loss Temperature:
+ 40 °C ± 2 °C
(steady state) limits of test No. 1 shall be met.
Humidity: 93 % RH + 2 % RH, -3 %

RH
In addition the insertion loss
IEC 61300-2-19
Duration of the 96 h
during the test shall be within
exposure:
± 0,3 dB from the initial value.

Maximum 1 h
After the test the wavelength
sampling interval
isolation limits of test No. 2 shall
during the test:
be met.
Measurements Insertion loss shall be

required: measured before, during
During and on completion of the
and after the test.
test the return loss limits of test
No. 4 shall be met
Return loss shall be
measured before, during
and after the test.
– 10 – IEC 61753-089-2:2013  IEC:2013
Table 1 (4 of 5)
No. Test Requirement Details
11 Vibration After the test the insertion loss Frequency 10 Hz – 55 Hz
limits of test No. 1 shall be met. range:
IEC 61300-2-1
Constant 0,75 mm
After the test the wavelength
vibration
isolation limits of test No. 2
amplitude:
shall be met.
Number of 15
cycles
After the test the return loss
(10 Hz - 55 Hz -
limits of test No. 4 shall be met
10 Hz):
Frequency 1 octave/min
change:
Number of 3 orthogonal
axes:
Measurements Insertion loss shall be
required: measured before and after
the test.
Return loss shall be
measured before and after
the test
12 Shock After the test the insertion loss Acceleration 5 000 m/s²
limits of test No. 1 shall be met. force:
IEC 61300-2-9 Number of 3 main axes, perpendicular
After the test the wavelength
axes: to each other
isolation limits of test No. 2
Duration shock: 1 ms
shall be met.
Pulse: Half sine
Number of 2 per axis
After the test the return loss
shocks:
limits of test No. 4 shall be met
Measurements Insertion loss shall be
required: measured before and after
the test.
Return loss shall be
measured before and after
the test
13 Fibre/cable retention After the test the insertion loss Magnitude of 10 N ± 1 N for reinforced
limits of test No. 1 shall be met. the load: cable.
IEC 61300-2-4
5,0 N ± 0,5 N for secondary
After the test the wavelength
coated fibre.
isolation limits of test No. 2
2,0 N ± 0,2 N for primary
shall be met.
coated fibre.
Load 0,3 m from the end of
After the test the return loss
application device.
limits of test No. 4 shall be met
point:
Load rate: 5 N/s for reinforced cable.
0,5 N/s for coated fibre.
Duration of the 120 s at 10 N
load: 60 s at 5 N and 2 N
Measurements Insertion loss shall be
required: measured before and after
the test.
Return loss shall be
measured before and after
the test
Table 1 (5 of 5)
No. Test Requirement Details
14 Flexing of the strain After the test the insertion loss Magnitude of
2,0 N ± 0,2 N for reinforced
relief of fibre optic limits of test No. 1 shall be met. the load:
cable
devices
Load 0,2 m from end of device
After the test the wavelength
application
IEC 61300-2-44 isolation limits of test No. 2 shall
point:
be met.
Angle of
± 90 °
direction:
After the test the return loss
Number of 30 cycles
limits of test No. 4 shall be met.
cycles:
Measurements Insertion loss shall be
required: measured before and after
the test.
Return loss shall be
measured before and after
the test
15 Static side load for After the test the insertion loss Magnitude of
1,0 N ± 0,1 N for reinforced
connectors limits of test No. 1 shall be met. the load:
cable.
0,2 N ± 0,02 N for
IEC 61300-2-42 After the test the wavelength
secondary coated fibres.
isolation limits of test No. 2 shall
Load 0,3 m from the end of
be met.
application device
point:
After the test the return loss

limits of test No. 4 shall be met.
Duration of the 1 h at 1 N.
load: 5 min at 0,2 N.
Measurements Insertion loss shall be
required: measured before and after
the test.
Return loss shall be
measured before and after
the test
– 12 – IEC 61753-089-2:2013  IEC:2013
Annex A
(normative)
Sample size
Table A.1 shows sample size. All samples shall be subjected to tests 1 – 6. All other tests
shall be carried out in any of the following order. Consecutive testing on the same optical
sample is allowed, but in case of failure during the consecutive testing, a new sample shall be
prepared and the failed test shall be redone.
Table A.1 – Sample size
Test number Test Sample size
1 Insertion loss 12
2 Wavelength isolation 12
3 Directivity 12
4 Return loss 12
5 Polarization dependent loss 12
6 High optical power 12
7 Cold 4
8 Dry heat – High temperature endurance 4
9 Damp heat (steady state) 4
10 Change of temperature 4
11 Vibration 4
12 Shock 4
13 Fibre/cable retention 4
14 Flexing of the strain relief of fibre optic devices 4
15 Static side load for connectors 4

Annex B
(Informative)
General information for OTDR monitoring WWDM device
OTDRs outside the PON’s working wavelength range are used for physical monitoring of the
network lines.
The OTDR monitoring WWDM is used inside the PON for combining and separating the traffic
signals and the OTDR signals at the central office (CO) near the optical line terminal (OLT) as
shown in Figure B.1.
1 550 nm - 1 560 nm
1 260 nm - 1 360 nm
OLT
1 480 nm - 1 500 nm
1 550 nm - 1 560 nm
1 620 nm - 1 660 nm
Common
1 620 nm - 1 660 nm
OTDR
IEC  449/13
Figure B.1 – Functional principle of a monitoring WWDM device
The OTDR monitoring WWDM can also be used inside the PON for combining and separating
the traffic signals and the OTDR signals at the premises near the optical network unit (ONU)
at the customer side.
Figure B.2 shows an example for the integration of the OTDR monitoring WWDM at central
office and customer side. At the central office side the downstream OTDR signal is combined
with the downstream traffic signals. At the customer side the downstream OTDR signal is
separated from the downstream traffic signals and it is reflected e.g. by an optical mirror. The
reflected upstream OTDR signal is combined with the upstream traffic signals at the customer
side. At the central office side the reflected OTDR signal is separated from the upstream
traffic signals.
From the OTDR response/measurement curve the provider can see if there are problems like
fibre breaks, parts with higher insertion loss at the line or if there are changes from the initial
measurement of the line. Therefore the provider can see if he can reach the customer.

– 14 – IEC 61753-089-2:2013  IEC:2013

1 310/1 490/1 550
1 310/1 490/1 550
OLT ONU-1
WDM (CO) WDM-1 (ONU)
1 625 1 625
Splitter
Reflector-1
2 × N
OTDR
1 310/1 490/1 550
ONU-2
WDM-2 (ONU)
1 625
Reflector-2
… …
1 310/1 490/1 550
ONU-N
WDM-N (ONU)
1 625
Reflector-N
IEC  450/13
Figure B.2 – Example for the integration of the OTDR monitoring WWDM
at c
...