IEC 60874-14-9:1999

Connectors for optical fibres and cables - Part 14-9: Fibre optic connector type SC-APC tuned 8° terminated on single mode fibre type B1 - Detail specification

General Information

• Status: Published
• Publication Date: 15-Sep-1999
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Current Stage: PPUB - Publication issued
• Start Date: 30-Sep-1999
• Completion Date: 16-Sep-1999

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
60874-14-9
QC 910004XX0009
First edition
1999-09
Connectors for optical fibres and cables –
Part 14-9:
Fibre optic connector type SC-APC tuned 8°
terminated on single mode fibre type B1 –
Detail specification
Connecteurs pour câbles et fibres optiques –
Partie 14-9:
Connecteur pour fibres optiques de type SC-APC 8° (réglé)
terminé sur une fibre monomodale de type B1 –
Spécification particulière
Reference number
Numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series.
Consolidated publications
Consolidated versions of some IEC publications including amendments are
available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the
base publication, the base publication incorporating amendment 1 and the base
publication incorporating amendments 1 and 2.
Validity of this publication
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology.
Information relating to the date of the reconfirmation of the publication is available
in the IEC catalogue.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is to be found at the following IEC sources:
• IEC web site*
•
Catalogue of IEC publications
Published yearly with regular updates
(On-line catalogue)*
• IEC Bulletin
Available both at the IEC web site* and as a printed periodical
Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International
Electrotechnical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols
for diagrams.
* See web site address on title page.

INTERNATIONAL IEC
STANDARD
60874-14-9
QC 910004XX0009
First edition
1999-09
Connectors for optical fibres and cables –
Part 14-9:
Fibre optic connector type SC-APC tuned 8°
terminated on single mode fibre type B1 –
Detail specification
Connecteurs pour câbles et fibres optiques –
Partie 14-9:
Connecteur pour fibres optiques de type SC-APC 8° (réglé)
terminé sur une fibre monomodale de type B1 –
Spécification particulière
 IEC 1999  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
R
International Electrotechnical Commission
For price, see current catalogue

– 2 – 60874-14-9 © IEC:1999(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR OPTICAL FIBRES AND CABLES –
Part 14-9: Fibre optic connector type SC-APC tuned 8°
terminated on single mode fibre type B1 –
Detail specification
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International standard may be the subject
of patent rights.
International Standard IEC 60874-14-9 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/1223/FDIS 86B/1259/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 3.
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).
The references to clauses or subclauses of IEC 60874-1 indicated in this part apply to the
third edition of IEC 60874-1.
60874-14-9 © IEC:1999(E) – 3 –
The committee has decided that the contents of this publication will remain unchanged until 2012.
At this date, the publication will be
•
reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this standard may be issued at a later date.

– 4 – 60874-14-9 © IEC:1999(E)
CONNECTORS FOR OPTICAL FIBRES AND CABLES
Part 14-9: Fibre optic connector type SC-APC tuned 8° terminated on single
mode fibre type B1 – Detail specification
NATIONAL STANDARDS ………………………….
ORGANIZATION:
Date ……………………
DETAIL SPECIFICATION IEC QC 910004XX0009
FIBRE OPTIC COMPONENT OF ASSESSED QUALITY IN ACCORDANCE WITH
• GENERIC SPECIFICATION: QC 910000 (IEC 60874-1)
• BLANK DETAIL SPECIFICATION: QC 910004 (IEC 60874-1-1)
CONNECTOR SET FOR OPTICAL FIBRES AND CABLES
CLASSIFICATION:
Type: Name: SC/APC 8° angle (tuned)
Configuration: plug-adapter-plug
Coupling: push-pull
Control dimensions:
– Plug: see figures 1, 2, 3 and 4
– Adaptor: see IEC 60874-14-3
Arrangement: patchcord arrangement
Style: Fibre retention: as required
Cable retention: as required
Optical coupling: butting
Alignment: resilient sleeve alignment
Variants: see page 10
Climatic category: 10/60/4
Environmental category: 4
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
Mode field 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
Jacket outer diameter As required per variant
Fibre cut-off wavelength 1 100 nm – 1 280 nm
Additional information
–   Attenuation in random connection:
less than 0,60 dB (99 % probability)
less than 0,15 dB (average)
60874-14-9 © IEC:1999(E) – 5 –
Mechanical reference plane
H
I J
Q R
K
G
cBC
β
L
M
Fibre core
Ferrule
De-latch housing
Cross section A-A’
Guide key
Detail of ferrule endface
B
Guide key
V
rS
Projected from B direction
A
A’ IEC  1035/99
Figure 1 – Plug mating face dimensions
D
E
F
∅ A
T
∅ B
U
C
BM
BM
N
O
P
– 6 – 60874-14-9 © IEC:1999(E)
Dimensions
Reference Minimum Maximum Notes
A 2,4985 mm 2,4995 mm
B 4,80 mm 4,90 mm
C 6,80 mm 7,40 mm
D 4,90 mm 5,30 mm
E 6,70 mm 6,80 mm
F 19° 23°
G 25° 35°
H 7,15 mm 7,50 mm 1, 2
I 0,80 mm 1,20 mm
J 5,30 mm 5,50 mm
K – 0,10 mm 0,05 mm
L 2,11 mm 2,50 mm
M 2,00 mm 2,80 mm
N 6,60 mm 6,80 mm
O 1,60 mm 1,80 mm
P 8,89 mm 8,99 mm
Q 0,80 mm 1,00 mm
R 7,29 mm 7,39 mm
rS 0,80 mm 0,90 mm Radius
T 4,05 mm 4,15 mm
U 5,40 mm 5,60 mm
V 0 mm 0,50 mm
cBC 0 mm 0,50 mm Chamfer
BM 0 mm 45° 6
NOTES
1 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.
2 This value shows the dimension after the ferrule is polished and in the unmated condition.
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.
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.
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.
6 The dimension “BM” means the adjusting angle of the core centre ferrule centre relative to
the keying direction. These dimensions shall be measured according to IEC 61300-2-41.
Figure 1 – Plug mating face dimensions (concluded)

60874-14-9 © IEC:1999(E) – 7 –
Plane B
EA
Ferrule
Plane A
Guide key
IEC  1036/99 IEC  1037/99
Figure 2a – Expanded view of ferrule endface Figure 2b – Expanded view from C direction
Dimensions
mm
Reference Minimum Nominal Maximum Notes
EA 90° 1
ED 0,80 1,70 Diameter, 2
NOTES
1 The dimension EA is defined as an angle between two planes: one plane, plane A, through the axis of the ferrule
and the axis of symmetry of the guide key. The other plane, plane B, passes through the axis of the ferrule and the
normal to the angle PC reference plane.
2 The shape of the ferrule end shall be one of shape (1), (2) or (3).
Figure 2 – Ferrule endface radius and typical shape
∅ A ∅ A
∅ A
ED ED ED
– 8 – 60874-14-9 © IEC:1999(E)
Angled PC
reference plane
EQ
Angled PC
EO
reference plane
EB
Vertex
rEP
IEC  1038/99
Dimension
Reference Minimum Nominal Maximum Notes
EB 8° 1
EO 0 mm 0,05 mm 2
rEP 5,00 mm 12,00 mm 3, radius
EQ –0,0001 mm 0,0001 mm 3 and 4
NOTES
1 When used with 1 300 nm zero dispersion single-mode fibre this range of endface angle will ensure return loss of
greater than 55 dB at wavelengths of 1 310 nm or 1 550 nm even when the connector is unmated. However, when
applied to dispersion shifted fibre, lesser return loss values in the unmated condition will be seen.
2 The dome eccentricity EO is defined as a distance between the ferrule centre and the vertex of the spherically
polished endface relative to the angled PC reference plane. This dimension shall be measured in both extreme
positions when the ferrule is rotated in the connector.
3 The radius and fibre undercut shall be measured in all directions over a diameter of 0,25 mm. The minimum as well
as the maximum value shall be within specified limits.
4 The negative dimension refers to the fibre protrusion.
Figure 3 – Ferrule endface geometry after termination

60874-14-9 © IEC:1999(E) – 9 –
∅ BE
BD
IEC  1039/99
Dimension
mm
Reference Minimum Nominal Maximum Notes
BD 60
BE 2,20 1
BE 2,60 2
BE 2,90 3
BE 3,20 4
NOTES
1 This value is applicable to the variant number 1001 and 1002.
2 This value is applicable to the variant number 1003 and 1004.
3 This value is applicable to the variant number 1005 and 1006.
4 This value is applicable to the variant number 1007 and 1008.
Figure 4 – Plug dimension
– 10 – 60874-14-9 © IEC:1999(E)
VARIANT IDENTIFICATION NUMBERS
NUMBER: XXXXXXXXXXXXXX
ZZZZ Component name Variant feature
Applicable cable jacket diameter Ferrule material
mm
1001 Plug 2,00 Zirconia
1002 Plug 2,00 Metal
1003 Plug 2,40 Zirconia
1004 Plug 2,40 Metal
1005 Plug 2,70 Zirconia
1006 Plug 2,70 Metal
1007 Plug 3,00 Zirconia
1008 Plug 3,00 Metal
SUPPLEMENTARY INFORMATION
Colour:
Colour of the de-latch housing shall be green according to RAL 6029
Colour of the boot shall be green according to RAL 6018
Component marking:
The name and/or manufacturer’s identification mark may be permanently identified. Figure 5 shows an example of the
location of the component marking.
Manufacturer’s identification mark
Type name
IEC  1040/99
Figure 5 – Example of component marking

60874-14-9 © IEC:1999(E) – 11 –
TABLE 1
FIXED SAMPLE TEST SCHEDULE FOR QUALIFICATION APPROVAL
Reference
Test sequence IEC QC 910000 (IEC 60874-1) n
(IEC 61300)
Group 0
– Visual examination 4.4.1 (3-1) 20
– Dimensions 4.4.2 (3-1)
– Ferrule compression (3-22)
Group 1
– Attenuation 4.4.7 (3-4) 20
– Return loss 4.4.12 (3-6)
Group 2
–Cold 4.5.17 (2-17)
– Dry heat 4.5.18 (2-18) 6
– Damp heat (steady state) 4.5.19 (2-19)
Group 3
–Drop 4.5.14 (2-12)
– Engagement and separation force 4.4.5 (3-11) 6
– Mechanical endurance 4.5.32 (2-2)
Group 4
–Vibration 4.5.1 (2-1) 4
– Change of temperature (test Nb) 4.5.22 (2-22)
Group 5
– Strength of coupling mechanism 4.5.6 (2-6) 4
– Cable pulling 4.5.4 (2-4)
– Cable torsion 4.5.5 (2-5)
Group 6
– Fibre or ferrule retention 4.5.2 (2-4) NA
NOTES
1 n = sample size (number of plugs).
2 To satisfy the qualification approval 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 st
...