IEC 60874-19-1:2007

IEC 60874-19-1
Edition 3.0 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
QC 910005XX0001
Fibre optic interconnecting devices and passive components – Connectors for
optical fibres and cables –
Part 19-1: Fibre optic patch cord connector type SC-PC (floating duplex)
standard terminated on multimode fibre type A1a, A1b – Detail specification

Dispositifs d’interconnexion et composants passifs à fibres optiques –
Connecteurs pour câbles et fibres optiques –
Partie 19-1: Connecteur de cordon de liaison à fibres optiques de type SC-PC
(duplex flottant) à terminaison standard sur fibres multimodes de type A1a,
A1b – Spécification particulière

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IEC 60874-19-1
Edition 3.0 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
QC 910005XX0001
Fibre optic interconnecting devices and passive components – Connectors for
optical fibres and cables –
Part 19-1: Fibre optic patch cord connector type SC-PC (floating duplex)
standard terminated on multimode fibre type A1a, A1b – Detail specification

Dispositifs d’interconnexion et composants passifs à fibres optiques –
Connecteurs pour câbles et fibres optiques –
Partie 19-1: Connecteur de cordon de liaison à fibres optiques de type SC-PC
(duplex flottant) à terminaison standard sur fibres multimodes de type A1a,
A1b – Spécification particulière

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 33.180.20 ISBN 2-8318-9395-X

– 2 – 60874-19-1 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
CONNECTORS FOR OPTICAL FIBRES AND CABLES –

Part 19-1: Fibre optic patch cord connector type SC-PC (floating duplex)
standard terminated on multimode fibre type A1a, A1b –
Detail specification
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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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
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consensus of opinion on the relevant subjects since each technical committee has representation from all
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
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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 60874-19-1 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. It constitutes a
technical revision and updated to harmonise with the requirements from IEC 61753-1, the
optical interface of IEC 61755-3-3 and the modal condition as specified in IEC 61300-1.

60874-19-1 © IEC:2007 – 3 –
The text of this standard is based on the following documents:
FDIS Report on voting
86B/2598/FDIS 86B/2640/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 not been drafted in complete accordance with the ISO/IEC Directives,
Part 2.
The QC number that appears on the front cover of this publication is the specification number
in the IEC Quality Assessment System for Electronic Components (IECQ 910005XX0001).
A list of all parts of the IEC 60874 series, under the general title: Fibre optic interconnecting
devices and passive components – Connectors for optical fibres and cables, can be found on
the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result 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.
– 4 – 60874-19-1 © IEC:2007
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
CONNECTORS FOR OPTICAL FIBRES AND CABLES –

Part 19-1: Fibre optic patch cord connector type SC-PC (floating duplex)
standard terminated on multimode fibre type A1a, A1b –
Detail specification
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS – CONNECTORS FOR OPTICAL
BRES AND CABLES
Part 19-1: Fibre optic patch cord connector type SC-PC (floating duplex) standard terminated on multimode fibre type A1a,
A1b - Detail specification
NATIONAL STANDARDS .
ORGANIZATION:
Date.
DETAIL SPECIFICATION IEC QC 910005XX0001
FIBRE OPTIC COMPONENT OF ASSESSED QUALITY IN ACCORDANCE WITH
• GENERIC SPECIFICATION: QC 910000 (IEC 60874-1)

CONNECTOR SET FOR OPTICAL FIBRES AND CABLES

CLASSIFICATION:
Type: Name: SC (floating duplex)
For use in applications as specified in ISO/IEC International Standard 11801: 2002, Information technology –
Generic cabling for customer premises and as defined in category C of IEC 61753-1
Fibre optic interconnecting devices and passive components performance standard – Part 1: General and
guidance for performance standards
Configuration: plug-adaptor-plug
Coupling: push-pull
Control dimensions:
- Plug: see Figures 1, 2 and 3
- Adaptor: See IEC 60874-19-3
Arrangement: Patch cord arrangement

Style: Fibre retention: as required
Cable retention: as required
Optical coupling: butting
Alignment: resilient sleeve alignment

Variants: See page 8
Climatic category: 10/60/4
Environmental category: 4 ( category C of IEC 61753-1)

Assessment level: A
QUALIFICATION PROCEDURE: Fixed sample procedure

SAFETY WARNING: Take care when handling small diameter optical fibre to prevent puncturing the skin, especially in
the eye area. Direct viewing of the end of an optical fibre when it is propagating energy is not recommended unless prior
assurance is obtained as to the safe energy output level.

Applicable fibre cable information
Core diameter in accordance with IEC 60793-2
Cladding diameter in accordance with IEC 60793-2
Buffer diameter
(250 ± 15) μm, (500 ± 30) μm, (900 ± 50) μm
Tension member Aramid strength member
Jacket outer diameter As required per variant

60874-19-1 © IEC:2007 – 5 –
Mechanical reference plane
H
I J
K
R
Q
G
A
cBC
Ferrule
F
L M
rS
A
Delatch housing
B
Partial cross-section A-A
V
View from B direction
IEC  2218/07
Figure 1 – Plug mating face dimensions
D
E
∅A
T
∅B
U
C
P
N
O
DB
– 6 – 60874-19-1 © IEC:2007
Dimensions
mm
Reference Minimum Maximum Notes
A 2,497 2,500 Diameter
B 4,80 4,90 Diameter
C 6,80 7,40
D 4,90 5,30
E 6,70 6,80
F 19° 23°
G 25° 35°
H 7,15 7,50 1
I 0,80 1,20
J 5,30 5,50
K -0,10 0,05 2
L 2,11 2,50
M 2,00 2,80
N 6,60 6,80
O
1,60 1,80
P 8,89 8,99
Q 0,80 1,00
R 7,29 7,39
S 0,80 0,90 Radius
T 4,05 4,15
U 5,40 5,60
V 0 0,50
BC 0 0,50 Chamfer
DB 12,25 13,15
Ferrule compression force shall be from 7,8 N to 11,8 N, when the ferrule is compressed to a
point where H is 7 mm ± 0,1 mm.
Plugs shall be capable of floating between the DB maximum and DB minimum.

NOTE 1 This value shows the dimension after the ferrule is polished and in the unmated
condition.
NOTE 2 The negative dimension refers that the position of the inside bottom plane is left-
direction relative to the plane defined as mechanical reference plane.
NOTE 3 Where a tolerance of form is not specified, the limits of the dimensions for a feature
control the form as well as the size.
NOTE 4 Where interrelated features of size (features shown with a common axis or centre
plane) have no geometric tolerance of location or run-out specified, the limits of the
dimensions for a feature control the location tolerance as well as the size.
NOTE 5 Where perpendicular features (features shown at right angles) have no geometric
tolerance of orientation or run-out specified, the limits of the dimensions for a feature control
the orientation tolerance as well as the size.

Figure 1 – Plug mating face dimensions (continued)

60874-19-1 © IEC:2007 – 7 –
∅BG
Fibre end-face
A
Note 2
Detail A
BI BF
IEC  2219/07
Dimensions
mm
Reference Minimum Maximum Notes
BF 5,00 30,00 radius
BG 1,90 2,26 Diameter, 1
BI 25° 35°
BK -0,0001 See graph 3, see curve,
page 8
Eccentricity of convex polished ferule end face is less than 50 μm.

NOTE 1 This value is applicable for variants as per variant table on page
12.
NOTE 2 Break edge.
NOTE 3 The negative dimension refers to the fibre protrusion. Dimension
BK should be measured according to IEC 61300-3-23.

Figure 2 – Ferrule end face geometry after termination
BK
– 8 – 60874-19-1 © IEC:2007
Allowable undercut for 0,5 kgf, and 62,5 μm
Minimum contact diameter
0 5 10 15 20 25 30
End face radius  (mm)
0,5 kgf
–0,75 –6 2 6 2 3
u (R, δ) = 1 566 R – R ×10 + (  R × 10 – δ ) × 10 – 50 – 10
0,5
u (R, δ) = Allowable undercut (nm)
0,5
R = End face radius (mm)
δ = Eccentricity of convex polished ferrule end face

Allowable undercut  (nm)
60874-19-1 © IEC:2007 – 9 –
∅BE
BD
IEC  2220/07
Dimensions
mm
Reference Minimum Maximum Notes
BD 60
BE 2,20 1
BE 2,60 2
BE 2,90 3
BE 3,20 4
NOTE 1 This value is applicable to the variant number –1001.
NOTE 2 This value is applicable to the variant number –1002.
NOTE 3 This value is applicable to the variant number –1003.
NOTE 4 This value is applicable to the variant number –1004.

Figure 3 – Plug dimension
– 10 – 60874-19-1 © IEC:2007
VARIANT IDENTIFICATION NUMBERS
NUMBER: XXXXXXXXXXXX
Variant Component name Variant feature

Applicable cable jacket diameter Ferrule material
mm
1001 Plug 2,00  Yttria partly stabilized zirconia
1002 Plug 2,40 Yttria partly stabilized zirconia
1003 Plug 2,70 Yttria partly stabilized zirconia
1004 Plug 3,00 Yttria partly stabilized zirconia

SUPPLEMENTARY INFORMATION
Colour:
Colour of the de-latch housing and boot shall be beige, according to: RAL 1013.

Component marking:
The name and/or manufacturer’s identification mark may be permanently identified. Figure 4 shows an example of the
location of the component marking.

Manufacturer's identification mark
IEC  2221/07
Figure 4 – Example of component marking

60874-19-1 © IEC:2007 – 11 –
Table 1 – Fixed sample test schedule for qualification approval
Test sequence Reference IEC 61300 n
Group 0
– Visual examination 3-1 20
– Dimensions 3-1
Group 1
– Attenuation 3-4 20
– Attenuation (Random mate) 3-34
– Return loss (Random mate) 3-6
Group 2
– Cold 2-17
– Dry heat 2-18 6
– Damp heat (steady state) 2-19
Group 3
– Impact (method A) 2-12
– Engagement and separation force 3-11 6
– Mating Durability 2-2
Group 4
– Vibrations 2-1 4
– Change of Temperature 2-22
Group 5
– Tensile strength of coupling mechanism 2-6 4
– Fibre/cable retention 2-4
– Flexing of strain relief 2-44
2-42
– Static side load
n = sample size (number of plugs).
To satisfy the qualification approval requirements of the detail specification there should be no failures in the sample
groups for any test parameter. If a failure does occur this should be investigated and the cause of failure identified
and corrected. The test which is affected should then be repeated using the minimum sample size stated in this detail
specification.
A fully documented test report and supporting data should be prepared and made available for inspection. Failures
and the corrective action taken to eliminate failures should be documented and evidence presented to show that the
corrective action will have no detrimental effect on the performance in any of the other tests. Design changes, as
opposed to improvements in quality control, will necessitate a repeat of the full qualification programme.
Unless otherwise indicated, the test details, measurements and performance requirements are given in Table 4.
Only group 1 tests shall be carried out using a reference connector. All other tests shall be carried out using the
samples from the relevant group at random.

– 12 – 60874-19-1 © IEC:2007
Table 2 – Lot-by-lot quality conformance inspection schedule groups A and B
Test sequence Reference IEC 61300 Assessment level A
IL AQL
Group A
– Visual examination 3-1 II 4 %
– Radius 3-16
– Undercut/protrusion 3-23
– Eccentricity of spherical polished end faces 3-25
Group B
– Attenuation 3-4 II 4 %
NOTE 1 Unless otherwise indicated, the details, measurements and performance requirements are given in Table 4.
NOTE 2 IL = inspection level; AQL = acceptable quality level.
NOTE 3 Only attenuation tests should be carried out using a reference connector. All other tests should be carried
out using the samples from the relevant group at random.

60874-19-1 © IEC:2007 – 13 –
Table 3 – Periodic quality conformance inspection schedule groups C and D
Assessment level A
Test sequence Reference IEC 61300
n p
Group C0
– Visual examination 3-1 18 24
– Dimensions 3-1
Group C1
– Attenuation 3-4 18 24
– Attenuation (random mate) 3-34
– Return loss (random mate) 3-6
Group C2
– Cold 2-17
– Dry heat 2-18 6 24
– Damp heat (steady state) 2-19
Group D0
– Visual examination 3-1 20 48
Dimensions
– 3-1
Group D1
– Attenuation 3-4 20 48
– Attenuation (random mate) 3-34
– Return loss (random mate) 3-6
Group D2
– Cold 2-17
– Dry heat 2-18 6 48
– Damp heat (steady state) 2-19
Group D3 `
– Impact (method A) 2-12
– Engagement and separation force 3-11 6 48
– Ferrule compression force 3-22
– Mating durability 2-2
Group D4
– Vibrations 2-1 4 48
– Change of temperature 2-22
Group D5
– Strength of coupling mechanism 2-6
– Fibre/cable retention 2-4 4 48
– Flexing of strain relief 2-44
– Static side load 2-42
n = sample size (number of plugs); p = periodicity in months.
To satisfy the conformance inspection requirements of the detail specification there shall be no failures in the
sample groups for any test parameter. If a failure does occur this shall be investigated and the cause of failure
identified and corrected. The test which is affected shall then be repeated using the minimum sample size stated
in this detail specification.
A fully documented test report and supporting data shall be prepared and made available for inspection. Failures
and the corrective action taken to eliminate failures shall be documented and evidence presented to show that the
corrective action will have no detrimental effect on the performance in any of the other tests. Design changes, as
opposed to improvements in quality control, will necessitate a repeat of the full qualification programme.
Unless otherwise indicated, the details, measurements and performance requirements are given in Table 4.
Only the first test of group C1 and D1 tests shall be carried out using a reference connector. All other tests shall
be carried out using the samples from the relevant group at random.

– 14 – 60874-19-1 © IEC:2007
Table 4 – Details, measurements and performance requirements
Visual examination: IEC 61300-3-1
Requirements
– Marking shall be clear
– De-latch housing shall be movable smoothly
Dimensions IEC 61300-3-1
Requirements
– All size dimensions shall be in accordance with this specification
Attenuation :      IEC 61300-3-4
Details
– Insertion method B
– Definitions of reference plug are as follows:
– Ferrule outer diameter is 2,499 mm ± 0,000 5 mm
– Eccentricity of the fibre core with the outer diameter of the ferrule is less than 1 μm
– Eccentricity of a spherical polished ferrule end face is less than 30 μm
– Reference duplex adaptor shall be in accordance with IEC 60874-19-3
– Attenuation of 2 reference plugs and a reference adaptor shall be < 0,10 dB
– Number of measurements to be averaged: 5
– Preconditioning procedure: clean ferrule end face and inside of alignment sleeve according the
manufacturers instruction
– Recovery procedure: none
Requirements
– Allowable attenuation: less than 0,3 dB against reference plug
Attenuation (Random mate): IEC 61300-3-34
Details
– Attenuation measurements shall be made on randomly selected specimens
– Method no. 1
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions.
– Recovery procedure: None
Requirements
– Allowable attenuation:  Mean ≤ 0,35 dB
Max. ≤ 0,50 dB for > 97 % of the mating combinations
Max. ≤ 0,75 dB for 100 % of the mating combinations

Modal condition for all attenuation and return loss measurements
– Measurement of attenuation and return loss and monitoring changes shall be done under the following:
+1 +1
Launch mode conditions; fully filled: CPR = 16 ( ) dB for 50μ m fibre and 21 ( ) dB for 62.5 μm fibre
0 0
and MPD according IEC/PAS 61300-3-43
– Source: LED
– source characteristics: (IEC 61300-3-4) type S2, stability ± 0,05 dB over measuring period
– Peak wavelength: 1,3 μm
60874-19-1 © IEC:2007 – 15 –
Table 4 (continued)
Return loss : IEC 61300-3-6
Details
– Method no 1 (Coupler method)
– Duplex adaptor shall be in accordance with IEC 60874-19-3
– Number of measurements to be averaged: 5
– Preconditioning procedure: Clean ferrule end face and inside of alignment according the
manufacturers instruction
– Recovery procedure: None
Requirements
Allowable return loss: > than 20 dB

Cold : IEC 61300-2-17
Details
– Temperature: –10 °C
– Duration: 96 h
– Specimen optically functioning
– Conditioning procedure: Specimen lowered to test temperature and returned to room temperature at a rate not  to
exceed 1° /min
– Duplex adaptor shall be in accordance with IEC 60874-19-3
– Monitoring method of attenuation and return loss shall be in accordance with IEC 61300-3-3
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve using lint-free cloth.
– Recovery procedure: after testing, specimens shall be maintained in room temperature conditions for 2 h.
Clean ferrule end face and inside of alignment sleeve according manufacturers instructions

Requirements
Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: ≥ 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation before /after test: < 0.20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

– 16 – 60874-19-1 © IEC:2007
Table 4 (continued)
Dry heat :        IEC 61300-2-18

Details
– Temperature: 60 °C
– Duration: 96 h
– Specimen optically functioning
– Conditioning procedure: specimen raised to test temperature and returned to room temperature at a
– rate not to exceed 1° /min
– Duplex adaptor shall be in accordance with IEC 60874-19-3
– Monitoring method of attenuation and return loss shall be in accordance with IEC 61300-3-3
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions
– Recovery procedure: after testing, specimens shall be maintained in room temperature conditions for 2 h
– Clean ferrule end face and inside of alignment according the manufacturers instructions
– Requirements:
Initial measurements and performance requirements:
– Attenuation: ≤0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤0,75  dB
– Change in attenuation during the test < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤0,75 dB
– Change in attenuation. before /after test: < 0,20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

60874-19-1 © IEC:2007 – 17 –
Table 4 (continued)
Damp heat (steady state) :   IEC 61300-2-19

Details:
– Temperature: 40 °C
– Relative humidity: 90-95 %
– Duration: 4 days
– Precautions regarding surface moisture removal: None
– Specimen optically functioning
– Conditioning procedure: Specimen raised to test temperature and returned to room temperature at a rate not to
exceed 1° /min
– Duplex adaptor shall be in accordance with IEC 60874-19-3
– Monitoring method of attenuation and return loss shall be in accordance with IEC 61300-3-3
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions.
– Recovery procedure: after testing, specimens shall be maintained in room temperature conditions for 2 h
– Clean ferrule end face and inside of alignment sleeve according the manufacturers instructions

Requirements
Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation. before /after test: < 0,20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

– 18 – 60874-19-1 © IEC:2007
Table 4 (continued)
Cable pulling :       IEC 61300-2-4
Details
– Magnitude: 50 N
– Rate of application of the tensile load: 50 N/min < load rate < 250 N/min
– Point of application of the tensile load: 22 cm - 28 cm from connector
– Specimen optically functioning
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions.
– Recovery procedure: None
– Simplex adaptor shall be in accordance with IEC 60874-14-4
– Each connector shall be tested separately
Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation. before /after test: < 0,20 dB
– Return loss: > 20 dB
– The specimen has no mechanical damage
Tensile strength of coupling mechanism:  IEC 61300-2-6
Details:
– Magnitude: 40 N
– Rate of application of the tensile load: 50 N/min.< load rate < 250 N/min
– Point of application of the tensile load: 22 cm - 28 cm from connector
– Specimen optically functioning
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions
– Recovery procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions before the final measurement
– Simplex adaptor shall be in accordance with IEC 60874-14-3
Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation before /after test: < 0,20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

60874-19-1 © IEC:2007 – 19 –
Table 4 (continued)
Mating durability :  IEC 61300-2-2
Details:
– Cycles: 500
– Specimen optically functioning
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions.
– Recovery procedure: Clean as necessary, but no more than 25 times during the course of the test.
– Deviations: None
– Simplex adaptor shall be in accordance with IEC 60874-14-3
– Monitoring method of attenuation shall be in accordance with IEC 61300-3-3
Requirements
Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation before /after test: < 0,20 dB
– Return loss: > 20 dB
Ferrule compression force : IEC 61300-3-22
Details:
– Position of the ferrule end face relative to mechanical reference plane of the connector while ferrule compression
force shall be measured:
Dimension H (see Figure 1) is 7 mm ± 0,1 mm
Requirements
– Allowable ferrule compression force: 7,8 N - 11,8 N
Impact : IEC 61300-2-12
Details
– Method: A
– Number of drops: 5
– Drop height: 1 000 mm
– Specimen optically non-functioning
– Preconditioning procedure: clean ferrule end face and inside of alignment sleeve according the manufacturers
instruction.
– Recovery procedure: clean ferrule end face and inside of alignment sleeve according the manufacturers instructions
before final measurement
– Deviation: none
– Duplex adaptor shall be in accordance with IEC 60874-19-3

Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
The specimen has no mechanical damage

– 20 – 60874-19-1 © IEC:2007
Table 4 (continued)
Engagement and separation force : IEC 61300-3-11

Details
– Preconditioning procedure: None
– Deviation: as necessary
– Simplex adaptor shall be in accordance with IEC 60874-14-3
– Each connector shall be tested separately

Requirements
– Allowable engagement force: max. 19,6 N
– Allowable separation force:  max. 19,6 N
Static side load : IEC 61300-2-42

Details
– Preconditioning procedure: None
– Magnitude of tensile load: 1 N
– Point of application of the tensile load: 0,5 m from end face of connector.
– Duration of test (maintaining load): 1 h
– Monitoring method of attenuation shall be in accordance with IEC 61300-3-3
– Sampling rate; maximum interval between measurements 3 min
– Method of mounting: An adaptor shall be rigidly clamped to the fixture
– Simplex adaptor shall be in accordance with IEC 60874-14-3
– Each connector shall be tested separately

Requirements:
Initial measurements and performance requirements:
– Attenuation: ≤ 0,75dB
– Return loss: > 20  dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20  dB
Final measurements and performance requirements:
– Attenuation: ≤0,75 dB
– Change in attenuation, before /after test: < 0,20 dB
– Return loss: > 20  dB
The specimen has no mechanical damage

60874-19-1 © IEC:2007 – 21 –
Table 4 (continued)
Flexing of strain relief : IEC 61300-2-44

Details:
– Magnitude: 2 N
– Rate of application of the load:
– Number of cycles: 100
– Point of application of the tensile load: 22 cm - 28 cm from connector
– Specimen optically functioning
– Monitoring method of attenuation and return loss shall be in accordance with IEC 61300-3-3
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions
– Recovery procedure: Clean ferrule end face and inside of alignment sleeve according the manufacturers
instructions before the final measurement
– Deviations: None
– Simplex adaptor shall be in accordance with IEC 60874-14-3

Initial measurements and performance requirements:
– Attenuation: ≤ 0,75dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤0,75 dB
– Change in attenuation before /after test: < 0,20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

– 22 – 60874-19-1 © IEC:2007
Table 4 (continued)
Change of temperature:  IEC 61300-2-22
Details
– High temperature: 60 °C
– Low temperature: –10 °C
– Duration of extreme temperature: 30 min
– Rate of temperature change 1 °C/Min
– Number of cycles: 5
– Specimen optically functioning
– Monitoring method of attenuation and return loss shall be in accordance with IEC 61300-3-20
– Preconditioning procedure: Clean ferrule end face and inside of alignment sleeve using lint free cloth
– Recovery procedure: After test, specimens shall be maintained in room temperature
condition for 2 h
– Clean ferrule end face and inside of alignment sleeve according the manufacturers instructions
– Deviation: None
– Duplex adaptor shall be in accordance with IEC 60874-19-3.

Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation before /after test: < 0,20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

60874-19-1 © IEC:2007 – 23 –
Table 4 (end)
Vibration 4.5.1: IEC 61300-2-1

Details
– Frequency range: 10 Hz - 55 Hz
– Vibration amplitude: 0,75 mm constant displacement
– Sweep time: 1 octave/min
– Endurance duration per axis: 30 min
– Method of mounting: an adapter shall be mounted rigidly to the mounting fixture
– Specimen optically functioning
– Monitoring for transient loss according to IEC 61300 -3-28
– Preconditioning procedure: None
– Recovery procedure: clean ferrule en face and inside of alignment sleeve according the
manufacturers instruction
– Deviation: None
– Duplex adaptor shall be in accordance with IEC 60874-19-3

Initial measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Return loss: > 20 dB
Measurements and performance requirements during the test:
– Attenuation: ≤ 0,75 dB
– Change in attenuation during the test: < 0,30 dB
– Return loss: > 20 dB
Final measurements and performance requirements:
– Attenuation: ≤ 0,75 dB
– Change in attenuation before /after test: < 0,20 dB
– Return loss: > 20 dB
The specimen has no mechanical damage

___________
– 24 – 60874-19-1 © CEI:2007
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
DISPOSITIFS D’INTERCONNEXION ET
COMPOSANTS PASSIFS À FIBRES OPTIQUES –
CONNECTEURS POUR CÂBLES ET FIBRES OPTIQUES –

Partie 19-1: Connecteur de cordon de liaison à fibres optiques
de type SC-PC (duplex flottant) à terminaison standard
sur fibres multimodes de type A1a, A1b –
Spécification particulière
AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des comités d'études,
aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent également aux
travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
intéressés sont représentés dans chaque comité d’études.
3) Les publications CEI se présentent sous la forme de recommandations internationales et elles sont agréées
comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
nationales et régionales. Toute divergence entre toute Publication de la CEI et toute publication nationale ou
régionale correspondante doit être indiquée en termes clairs dans cette dernière.
5) La CEI n’a prévu aucune procédure de marquage valant indication d’approbation et n’engage pas sa
responsabilité pour les équipements déclarés conformes à une de ses publications.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
7) Aucune responsabilité ne doit être imputée à la CEI, à ses administrateurs, employés, auxiliaires ou
mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de la CEI ou de
toute autre Publication de la CEI, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente publication CEI peuvent faire l’objet
de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété ou de ne pas avoir signalé leur existence.
La Norme internationale CEI 60874-19-1 a été établie par le sous-comité 86B: Dispositifs
d’interconnexion et composants passifs à fibres optiques, du comité d’études 86 de la CEI:
Fibres optiques.
Cette troisième édition annule et remplace la deuxième édition parue en 2003. Elle constitue
une révision technique et met à jour l’harmonisation avec les exigences de la CEI 61753-1,
avec l’interface optique de la CEI 61755-3-3 et les conditions modales de la CEI 61300-1.

60874-19-1 © CEI:2007 – 25 –
Le texte de cette norme est issu des documents suivants:
FDIS Rapport de vote
86B/2598/FDIS 86B/2640/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cette norme.
Cette publication n’a pas été rédigée en complet accord avec les Directives ISO/CEI, Partie 2.
Le numéro de QC qui figure sur la page couverture de la présente publication est le numéro de
la spécification dans le Système CEI d’assurance de la qualité des composants électroniques
(IECQ 910005XX0001).
Une liste de toutes les parties de la CEI 60874, sous le titre général: Dispositifs
d’interconnexion et composants passifs à fibres optiques – Connecteurs pour câbles et fibres
optiques, est disponible sur le site web de la CEI.
Les normes futures de cette série porteront dorénavant le nouveau titre général cité ci-dessus.
Le titre des normes existant déjà sera mis à jour lors d’une prochaine édition.
Le comité a décidé que le contenu de cette publication ne sera pas modifié avant la date
...