IEC 61754-36:2025

Fibre optic interconnecting devices and passive components – Fibre optic connector interfaces – Part 36: Type SAC connector family

IEC 61754-36:2025 defines the standard mechanical interface dimensions for the type SAC family of connectors.

Dispositifs d’interconnexion et composants passifs fibroniques – Interfaces de connecteurs fibroniques – Partie 36: Famille de connecteurs de type SAC

IEC 61754-36:2025 définit les dimensions d’interface mécanique normales pour la famille de connecteurs de type SAC.

General Information

• Status: Published
• Publication Date: 15-May-2025
• 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: 16-May-2025
• Completion Date: 13-Jun-2025

Overview

IEC 61754-36:2025 is an international standard published by the International Electrotechnical Commission (IEC) that defines the mechanical interface dimensions for the type SAC family of fibre optic connectors. This standard ensures interoperability and consistency for fibre optic interconnecting devices and passive components, specifically focusing on the SAC connector family. The SAC connectors use miniature duplex plug/adaptor/plug configurations designed for high-performance fibre optic communication systems.

The document provides comprehensive mechanical specifications, including dimensional, interface, and alignment characteristics for connectors, adaptors, and receptacles within the SAC family. It covers various interface types such as duplex and quadruplex connectors and includes physical contact (PC) and angled physical contact (APC) variants.

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Key Topics

• Connector Family Characteristics

  • Miniature duplex connector design
  • 1.25 mm nominal ferrule diameter
  • Spring-loaded cylindrical ferrules for reliable fibre alignment
  • Push-pull coupling mechanism on both ends for secure connection
  • Optical alignment via rigid or resilient bore sleeves

• Defined Interfaces

  • Duplex plug connector interface-physical contact (PC)
  • Duplex adaptor interface
  • Duplex angled physical contact (APC) plug connector interface with an 8° angle
  • Duplex active device receptacle interface
  • Quadruplex adaptor interface, compatible with SC simplex connector footprints
  • Quadruplex active device receptacle interface

• Intermateability and Mechanical Dimensions

  • Standardized connector, adaptor, and receptacle dimensions ensure broad interoperability
  • Detailed figures and tables illustrate connector plug and adaptor configurations
  • Latching mechanisms and fibre core locations specified for stability and precision

• Normative References for Compatibility

  • IEC 61754-1 for general connector interface guidance
  • IEC 61755 series for connector optical performance parameters

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Applications

The IEC 61754-36:2025 SAC connector family standard is essential for manufacturers, designers, and network engineers working with fibre optic interconnecting devices. Its practical applications include:

• Telecommunications Infrastructure
  Ensuring mechanical compatibility and reliable optical connections in high-density fibre optic networks

• Data Centers and High-Speed Networks
  Utilizing miniature duplex connectors for space-saving, high-performance optical interconnections

• Active Optical Devices
  Seamless integration with active device receptacles specified within the standard for optical transceivers and modules

• Fibre Optic Equipment Manufacturing
  Designing connectors, adaptors, and panels compliant with international mechanical standards to guarantee interoperability and ease of installation

• Test and Measurement Equipment
  Providing standard mechanical references for the development of connector testing tools and optical interface gauges

By adhering to IEC 61754-36, organizations can enhance product compatibility, reduce installation errors, and improve overall network reliability.

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Related Standards

IEC 61754-36 forms part of the broader IEC 61754 series, focusing on fibre optic connector interfaces. Complementary and related standards include:

• IEC 61754-1 – General guidance and definitions for fibre optic connector interfaces
• IEC 61754-4 – SC connector family, relevant for quadruplex adaptor footprint in SAC connectors
• IEC 61755-3-1 and IEC 61755-3-2 – Optical parameters for physical contact (PC) and angled physical contact (APC) connectors
• IEC 61754 series – Comprehensive standards covering multiple fibre optic connector types and interfaces

Familiarity with these related standards ensures comprehensive understanding and effective implementation of IEC 61754-36.

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For the most accurate and up-to-date information, obtain IEC 61754-36:2025 from authorized IEC distributors and consult the IEC Products & Services Portal.

Standards Content (Sample)

IEC 61754-36 ®
Edition 1.0 2025-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Fibre optic
connector interfaces –
Part 36: Type SAC connector family

Dispositifs d’interconnexion et composants passifs fibroniques – Interfaces de
connecteurs fibroniques –
Partie 36: Famille de connecteurs de type SAC
ICS 33.180.20  ISBN 978-2-8327-0434-9

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– 2 – IEC 61754-36:2025 © IEC 2025
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms. 6
4 Description . 7
5 Interfaces . 7
Annex A (normative) Fibre core locations . 19
Annex B (informative) Additional adaptor dimensional information . 20
Annex C (informative) Latching mechanism . 28
Bibliography . 31

Figure 1 – Duplex plug connector datum target . 8
Figure 2 – Plug connector interface . 9
Figure 3 – Angled PC plug connector interface . 11
Figure 4 – Duplex adaptor interface . 13
Figure 5 – Quadruplex adaptor interface . 15
Figure 6 – Duplex active device receptacle interface . 16
Figure 7 – Quadruplex active device receptacle interface . 17
Figure 8 – Pin gauge for adaptors and active device receptacle . 18
Figure A.1 – Fibre core locations. 19
Figure B.1 – Duplex rectangular flange adaptor with mounting hole and panel cut-out . 20
Figure B.2 – Duplex rectangular no flange adaptor . 21
Figure B.3 – Quadruplex rectangular flange adaptor with mounting hole and panel
cut-out, simplex SC footprint . 22
Figure B.4 – Quadruplex rectangular no flange adaptor, simplex SC footprint . 23
Figure B.5 – Octuplex rectangular flange adaptor with mounting hole and panel cut-
out, duplex SC footprint. 24
Figure B.6 – Octuplex no flange adaptor, duplex SC footprint. 25
Figure B.7 – Octuplex rectangular flange adaptor with mounting hole and panel cut-out. 26
Figure B.8 – Octuplex no flange adaptor . 27
Figure C.1 – Latched configuration of a plug connector to adaptor-to-receptacle
interface . 28
Figure C.2 – Unlatched configuration of a plug connector from adaptor-to-receptacle
interface . 29

Table 1 – Plug-to-adaptor and plug-to-receptacle intermateability . 7
Table 2 – Dimensions of the plug connector interface . 10
Table 3 – Dimensions of angled PC plug interface . 11
Table 4 – Dimensions of duplex adaptor interface . 14
Table 5 – Quadruplex adaptor interface basic dimensions. 16
Table 6 – Dimensions of duplex active device receptacle interface . 16

Table 7 – Dimensions of quadruplex active device receptacle interface . 18
Table 8 – Pin gauge dimensions . 18
Table B.1 – Dimensions of duplex adaptor . 21
Table B.2 – Dimensions of quadruplex flange adaptor, simplex SC footprint . 23
Table B.3 – Dimensions of octuplex adaptor, duplex SC footprint . 25
Table B.4 – Dimensions of octuplex flange adaptor . 27
Table C.1 – Dimensions of a plug connector with adaptor-to-receptacle interface for
latched and unlatched configurations . 30

– 4 – IEC 61754-36:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – FIBRE OPTIC CONNECTOR INTERFACES –

Part 36: Type SAC connector family

FOREWORD
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IEC 61754-36 has been prepared by subcommittee 86B: Fibre optic interconnecting devices
and passive components, of IEC technical committee 86: Fibre optics. It is an International
Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/5028/FDIS 86B/5065/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 61754 series, published under the general title Fibre optic
interconnecting devices and passive components – Fibre optic connector interfaces, can be
found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
– 6 – IEC 61754-36:2025 © IEC 2025
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – FIBRE OPTIC CONNECTOR INTERFACES –

Part 36: Type SAC connector family

1 Scope
This part of IEC 61754 defines the standard mechanical interface dimensions for the type SAC
family of connectors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 61754-1, Fibre optic interconnecting devices and passive components – Fibre optic
connector interfaces – Part 1: General and guidance
IEC 61755-3-1, Fibre optic interconnecting devices and passive components – Connector
optical interfaces – Part 3-1: Connector parameters of dispersion unshifted single-mode
physically contacting fibres – Non-angled 2,5 mm and 1,25 mm diameter cylindrical full zirconia
ferrules
IEC 61755-3-2, Fibre optic interconnecting devices and passive components – Connector
optical interfaces – Part 3-2: Connector parameters of dispersion unshifted single-mode
physically contacting fibres – Angled 2,5 mm and 1,25 mm diameter cylindrical full zirconia
ferrules
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61754-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.2 Abbreviated terms
APC angled physical contact
PC physical contact
4 Description
The parent connector for type SAC connector family is a miniature duplex connector set of
plug/adaptor/plug configuration which is characterized as follows.
• The ferrule nominal diameter is 1,25 mm.
• The connector plug includes two cylindrical, spring-loaded ferrules.
• The connector has a push-pull coupling mechanism at both small sides.
• The optical alignment mechanism of the connectors is a rigid bore sleeve or a resilient
sleeve.
5 Interfaces
This document contains the following standard interfaces:
• interface 36-1: duplex plug connector interface – physical contact (PC);
• interface 36-2: duplex adaptor interface;
• interface 36-3: duplex plug connector interface – angled physical contact (APC), 8°;
• interface 36-4: duplex active device receptacle interface;
• interface 36-5: quadruplex adaptor interface;
NOTE 1 This interface is designed to fit the SC simplex connector adaptor footprint as specified in the
IEC 61754-4 series.
• interface 36-6: quadruplex active device receptacle interface.
NOTE 2 All future variants connecting more than two duplex plug connectors on each side will use the minimum
specified pitch.
NOTE 3 The adaptor interfaces specified in this document define only half of the adaptor. The other half can be
configured to have either key aligned or opposed to each half.
The intermateability between plugs, adaptors, and receptacles is given in Table 1.
Duplex plug connector reference planes are shown in Figure 1.
End-face geometry on PC and APC interfaces shall be in accordance with IEC 61755-3-1 and
IEC 61755-3-2, respectively.
Table 1 – Plug-to-adaptor and plug-to-receptacle intermateability
Plug interfaces Adaptor interfaces Active device receptacle interfaces
36-2 36-5 36-4 36-6
36-1 Mate Mate Mate Mate
a a
36-3 Mate Mate
Mate Mate
a
Receptacle and plug shall have similar polished end-faces. APC receptacle will mate with APC plug and PC
receptacle will mate with PC plug.

– 8 – IEC 61754-36:2025 © IEC 2025

Figure 1 – Duplex plug connector datum target
Oriented fibre core locations shall be as specified in Annex A.
Refer to Annex B for additional adaptor dimensional information.
Refer to Annex C for latching mechanism.
The plug optical interface dimensions are shown in Figure 2 as well as in Table 2. The
dimensions of angled PC plug optical interface are shown in Figure 3 and Table 3.

Figure 2 – Plug connector interface

– 10 – IEC 61754-36:2025 © IEC 2025
Table 2 – Dimensions of the plug connector interface
Dimensions
Reference Units Notes
Minimum Maximum
A 9,41 9,51 mm
B 0,7 0,9 mm
C 5,98 6,08 mm
D 0,7 0,9 mm
E 2,88 2,98 mm
F 2,4 2,5 mm
G 2,55 2,65 mm
H 3,7 3,8 mm
I 1,42 1,52 mm Radius
J 3,1 mm Basic dimension
K 6,95 7,05 mm
L 9,81 10,01 mm
M 1,40 1,60 mm
N 1,45 1,55 mm Diameter
O 9,18 9,28 mm
P 7,66 7,76 mm
Q 7,13 7,23 mm
R 6,01 6,41 mm
S 1,248 5 1,249 5 mm Diameter
a b
5,69 5,94 mm
T
U 4,23 4,43 mm
V 2,28 2,38 mm
W 0,95 1,15 mm
X 0,98 1,38 mm
Y 0,92 1,02 mm
Z 0,75 0,85 mm
AA 23 27 Degrees
AB 7,36 7,46 mm
AC 0,75 0,85 mm
AD 2,95 3,05 mm
AE 43 47 Degrees
AF 6,43 – mm
AG 10,31 10,51 mm
AH 1,08 1,18 mm
AI 0,65 0,85 mm
AJ 0,70 0,80 mm Diameter
AX 1,08 1,18 mm
Dimensions
Reference Units Notes
Minimum Maximum
BF 11 13 Degrees
BZ 45 Degrees Degrees, typical
CA 0,35 0,45 mm
NOTE These dimensional requirements apply to the finished ferrule, after all polishing procedures have been
completed.
a
Coupling sleeve shall be movable toward right and left direction. These dimensions are given when the
coupling sleeve is moved to its left-most direction position.
b
Dimension T is given for a plug interface when it is not mated. The ferrule is movable by a certain axial
compression force, with direct contacting interface, and therefore the dimension T is variable. The ferrule
compression force shall be 5,0 N to 6,0 N when the position of optical datum target, dimension T is moved to
the range of 5,19 mm to 5,39 mm. Forces are for buffered fibre only; different cord constructions can result in
higher forces, see IEC 60794-2-50.

Figure 3 – Angled PC plug connector interface
Table 3 – Dimensions of angled PC plug interface
Dimensions
Reference Units Notes
Minimum Maximum
BR 90 Degrees Basic dimension
BS 5 12 mm Radius
BT 8 Degrees Basic dimension
BT
8 Degrees Basic dimension
BT
8 Degrees Basic dimension
– 12 – IEC 61754-36:2025 © IEC 2025
Oriented fibre core locations for PC and APC connectors shall be as specified in Annex A.
Duplex adaptor interface is shown in Figure 4. The dimensions of duplex adaptor interface are
given in Table 4.
NOTE 4 Only half of the adaptor is defined and it is symmetric around DT.

a) Duplex adaptor front view and adaptor hook interface

NOTE Section A-A is defined in Figure 4 a)
b) Side cross section view, top and bottom groove guide section view
Figure 4 – Duplex adaptor interface
Each of the units in the duplex adaptor shall comply with all dimensions in Figure 4. The
dimensions apply to the other variants as well.

– 14 – IEC 61754-36:2025 © IEC 2025
Table 4 – Dimensions of duplex adaptor interface
Dimensions
Reference Units Notes
Minimum Maximum
A 9,56 9,66 mm
B 0,7 0,9 mm
D 0,7 0,9 mm
G 2,15 2,35 mm
H 3,85 3,95 mm
I 1,34 1,44 mm Radius
J 3,10 mm Basic dimension
M 1,65 1,85 mm
N 1,70 1,80 mm Diameter
a
7,56 7,76 mm
P
a
6,01 6,41 mm
R
b c
– – mm Diameter
S
T 5,24 5,44 mm
X 0,35 0,55 mm
AD – 4 mm Maximum
AH 1,88 1,98 mm
AI 0,9 1,10 mm
AJ 0,95 1,05 mm Diameter
AK 7,7 11,2 mm
AL 7,6 7,7 mm
AM 3,05 3,90 mm
AN 3,0 3,90 mm
AO 28 32 Degrees
AP 8 12 Degrees
AQ 17,15 24.75 mm
AR 7,17 7,27 mm
AS 1,4 1,5 mm Diameter
a
9,26 9,36 mm
AT
AU 10,86 - mm Minimum
AV 0,75 0,85 mm
AW 0,75 1,17 mm
AX 1,88 1,98 mm
AY 7,7 10,7 mm
AZ 7,6 7,7 mm
BA 3,05 3,90 mm
Dimensions
Reference Units Notes
Minimum Maximum
BE 75 77 Degrees
BJ 8 12 Degrees
BU 5,14 5,24 mm
NOTE Additional information for different port configurations, panel cut-out and outside dimensions can be found
in Annex B.
a
The dimension will become greater than the specified dimension when a plug is coupled to or removed from the
adaptor.
b
The connector alignment feature is a resilient sleeve, and the sleeve may be either fixed or floating. For a floating
sleeve, a pin gauge inserted in the sleeve shall be capable of moving freely into the position such that it is
coincident with datum SL. Dimension S defines the inner diameter of the alignment feature.
c
The connector alignment feature is a resilient (split) alignment sleeve. The feature shall accept a pin gauge to the
centre of the adaptor with a force of 1,0 N to 2,5 N under the condition that another pin gauge is inserted into the
feature from the other side until both pin gauges butt against each other. The pin gauge shall be 1,249 0 mm as
shown in Figure 8 and Table 8.

The dimensions of quadruplex adaptor interface are shown in Figure 5 as well as in Table 5.

Figure 5 – Quadruplex adaptor interface
The connector alignment feature is a resilient (split) alignment sleeve. The feature shall accept
a pin gauge to the centre of the adaptor with a force of 1,0 N to 2,5 N under the condition that
another pin gauge is inserted into the feature from the other side until both pin gauges butt
against each other. The pin gauge shall be 1,249 0 mm as shown in Figure 8 and Table 8.
Each of the units in the duplex adaptor shall comply with all dimensions in Figure 4. The
dimensions apply to the other variants as well.

– 16 – IEC 61754-36:2025 © IEC 2025
Table 5 – Quadruplex adaptor interface basic dimensions
Dimensions
mm
Reference Notes
Minimum Maximum
BI 3,9 Basic dimension
BK 7,75 7,85
NOTE Additional information for different port configurations, panel cut-out and outside dimensions can be found
in Annex B.
Dimensions for duplex active device receptacle interface are shown in Figure 6 and Table 6.

Figure 6 – Duplex active device receptacle interface
The sleeve may be fixed or floating. For a fixed sleeve, the positional tolerance applies. For a
floating sleeve, pin gauge inserted in the sleeve shall be capable of moving freely into a position
that it is coincident with datum SL. The pin gauge shall be 1,249 0 mm as shown in Figure 8
and Table 8.
Each of the units in the duplex receptacle shall comply with all dimensions of Figure 6. The
dimensions apply to the other variants as well.
Table 6 – Dimensions of duplex active device receptacle interface
Dimensions
Reference mm Notes
Minimum Maximum
A 9,56 9,66
B 0,7 0,9
D 0,7 0,9
G 2,15 2,35
H 3,85 3,95
I 1,34 1,44 Radius
J 3,10 Basic dimension
a b
S – – Diameter
AN 3,0 3,90
Dimensions
Reference mm Notes
Minimum Maximum
AS 1,4 1,5 Diameter
BY 14,2 – Minimum
NOTE 1 The connector alignment feature is a rigid bore sleeve or resilient alignment sleeve. Dimension S defines
the inner diameter of the alignment feature.
NOTE 2 Drawings and dimensions provided consist of those minimum features that are functionally critical during
the mating and unmating sequences of the plug with its adaptor-to-receptacle counterpart component. Plugs not
compliant to the provided dimensions here can cause intermateability problems.
a
The connector alignment feature is a resilient sleeve, and the sleeve may be either fixed or floating. For a
floating sleeve, a pin gauge inserted in the sleeve shall be capable of moving freely into the position such that
it is coincident with datum SL. Dimension S defines the inner diameter of the alignment feature.
b
The connector alignment feature is a resilient (split) alignment sleeve. The feature shall accept a pin gauge to
the centre of the adaptor with a force of 1,0 N to 2,5 N under the condition that another pin gauge is inserted
into the feature from the other side until both pin gauges butt against each other. The pin gauge shall be
1,249 0 mm as shown in Figure 8 and Table 8.

Dimensions for quadruplex active device receptacle interface are shown in Figure 7 and Table 7.

Figure 7 – Quadruplex active device receptacle interface
The sleeve may be fixed or floating. For a fixed sleeve, the positional tolerance applies. For a
floating sleeve, pin gauge inserted in the sleeve shall be capable of moving freely into a position
that it is coincident with datum SL.
Each of the units in the duplex receptacle shall comply with all dimensions of Figure 6. The
dimensions apply to the other variants as well.

– 18 – IEC 61754-36:2025 © IEC 2025
Table 7 – Dimensions of quadruplex active device receptacle interface
Dimensions
mm
Reference Notes
Minimum Maximum
a b
– – Diameter
S
BY 14,2 – Minimum
BI 3,9 Basic dimension
BK 7,75 7,85
NOTE 1 The connector alignment feature is a rigid bore sleeve or resilient alignment sleeve. Dimension S defines
the inner diameter of the alignment feature.
NOTE 2 Drawings and dimensions provided consist of those minimum features that are functionally critical during
the mating and unmating sequences of the plug with its adaptor-to-receptacle counterpart component. Plugs not
compliant to the provided dimensions here can cause intermateability problems.
a
The connector alignment feature is a resilient sleeve, and the sleeve may be either fixed or floating. For a
floating sleeve, a pin gauge inserted in the sleeve shall be capable of moving freely into the position such that
it is coincident with datum SL. Dimension S defines the inner diameter of the alignment feature.
b The connector alignment feature is a resilient (split) alignment sleeve. The feature shall accept a pin gauge to
the centre of the adaptor with a force of 1,0 N to 2,5 N under the condition that another pin gauge is inserted
into the feature from the other side until both pin gauges butt against each other. The pin gauge shall be
1,249 0 mm as shown in Figure 8 and Table 8.

The pin gauge for adaptors and active device receptacle is shown in Figure 8. The pin gauge
dimensions are given in Table 8.

Figure 8 – Pin gauge for adaptors and active device receptacle
Table 8 – Pin gauge dimensions
BW diameter BX
Pin gauge type mm mm Remarks
Minimum Maximum Minimum Maximum
Resilient
1,249 1,248 8 1,249 2 4,2 15
a
sleeve
a
Surface roughness should be less than 0,2 µm Ra; cylindricity shall be less than 0,5 µm.

Additional adaptor dimensional information is given in Annex B.

Annex A
(normative)
Fibre core locations
The fibre core locations (keyholes) shall be oriented outwards and opposite to the other fibre,
as shown in Figure A.1. This definition is applicable for non-angled (PC) and angled (APC)
ferrules with oriented fibre cores.
NOTE The definition is slightly different in IEC 61755-3-1 and IEC 61755-3-2, where the fibre core location is
specified as oriented toward the guide key.

a) Expanded front view b) Oriented fibre core locations, not-to-scale

Figure A.1 – Fibre core locations

– 20 – IEC 61754-36:2025 © IEC 2025
Annex B
(informative)
Additional adaptor dimensional information
The dimensions of duplex rectangular flange adaptor are shown in Figure B.1 as well as in
Table B.1. The dimensions of duplex rectangular no flange adaptor are shown in Figure B.2.

a) Duplex rectangular flange adaptor

b) Mounting hole dimensions and panel cut-out

Figure B.1 – Duplex rectangular flange adaptor with mounting hole and panel cut-out

Figure B.2 – Duplex rectangular no flange adaptor
Table B.1 – Dimensions of duplex adaptor
Dimensions
Reference mm Notes
Minimum Maximum
DA 2,75 2,85
DB 21,95 22,05 Flange optional

DC 31,95 32,05
DD 15,8 15,9
DE 12,85 12,95
DF 1,7 2,0
DG 15,0 15,4
DH 17,95 18,05 Flange optional

DI 13,0 13,5
DJ 17,75 18,25
DK 2,4 2,6 Holes optional
DL 6,05 6,25
DM – 14,65
DN 5,55 5,65
NOTE The maximum panel thickness is 1,6 mm (reference only).

The dimensions of quadruplex rectangular flange adaptor, simplex SC footprint, are shown in
Figure B.3 as well as in Table B.2. The dimensions of quadruplex rectangular no flange adaptor,
simplex SC footprint, are shown in Figure B.4.

– 22 – IEC 61754-36:2025 © IEC 2025

a) Quadruplex rectangular flange adaptor

b) Mounting hole dimensions and panel cut-out

Figure B.3 – Quadruplex rectangular flange adaptor with mounting hole
and panel cut-out, simplex SC footprint

Figure B.4 – Quadruplex rectangular no flange adaptor, simplex SC footprint
Table B.2 – Dimensions of quadruplex flange adaptor, simplex SC footprint
Dimensions
Reference mm Notes
Minimum Maximum
DA 2,75 2,85
DB 21,95 22,05 Flange optional

DC 31,95 32,05
DD 15,8 15,9
DE 12,85 12,95
DF 1,7 2,0
DG 15,0 15,4
DH 17,95 18,05 Flange optional

DI 13,0 13,5
DJ 17,75 18,25
DK 2,4 2,6 Holes optional
DM – 14,65
EJ 9,5 10,0
EN – 9,5
NOTE The maximum panel thickness is 1,6 mm (reference only).

The dimensions of octuplex rectangular flange adaptor, duplex SC footprint, are shown in
Figure B.5 as well as in Table B.3. The dimensions of octuplex rectangular no flange adaptor,
duplex SC footprint, are shown in Figure B.6.

– 24 – IEC 61754-36:2025 © IEC 2025

a) Octuplex rectangular flange adaptor

b) Mounting hole dimensions and panel cut-out

Figure B.5 – Octuplex rectangular flange adaptor with mounting hole
and panel cut-out, duplex SC footprint

Figure B.6 – Octuplex no flange adaptor, duplex SC footprint
Table B.3 – Dimensions of octuplex adaptor, duplex SC footprint
Dimensions
Reference mm Notes
Minimum Maximum
DA 2,75 2,85
FB 34,65 34,75 Flange optional

DC 31,95 32,05
DD 15,8 15,9
FE 25,75 25,85
DF 1,7 2,0
FG 27,9 28,2
FH 30,65 30,75 Flange optional

FI 26,0 26,5
FJ 30,45 30,95
DK 2,4 2,6 Holes optional
EJ 9,5 10,0
EN 9,3 9,5
FM – 28,55
NOTE The maximum panel thickness is 1,6 mm (reference only).

The dimensions of octuplex rectangular flange adaptor are shown in Figure B.7 as well as in
Table B.4. The dimensions of octuplex no flange adaptor are shown in Figure B.8.

– 26 – IEC 61754-36:2025 © IEC 2025

a) Octuplex rectangular flange adaptor

b) Mounting hole dimensions and panel cut-out

Figure B.7 – Octuplex rectangular flange adaptor with mounting hole and panel cut-out

Figure B.8 – Octuplex no flange adaptor
Table B.4 – Dimensions of octuplex flange adaptor
Dimensions
Reference mm Notes
Minimum Maximum
DA 2,75 2,85
GB 26,5 26,6 Flange optional
DC 31,95 32,05
DD 15,8 15,9
GE 17,35 17,45
DF 1,7 2,0
GG 19,65 19,75
GH 21,75 21,85 Flange optional
DK 2,4 2,6 Holes optional
GJ 17,6 18,1
GK 21,55 22,05
GL 13,2 13,7
GM – 19,55
FN 12,81 13,21
NOTE The maximum panel thickness is 1,6 mm (reference only).

– 28 – IEC 61754-36:2025 © IEC 2025
Annex C
(informative)
Latching mechanism
The latched configuration of plug connector to adaptor-to-receptacle interface is shown in
Figure C.1.
Figure C.1 – Latched configuration of a plug connector
to adaptor-to-receptacle interface

The unlatched configuration of plug connector from adaptor-to-receptacle interface is shown in
Figure C.2.
Figure C.2 – Unlatched configuration of a plug connector
from adaptor-to-receptacle interface
The dimensions of a plug connector with adaptor-to-receptacle interface for latched and
unlatched configurations are shown in Table C.1.

– 30 – IEC 61754-36:2025 © IEC 2025
Table C.1 – Dimensions of a plug connector with adaptor-to-receptacle interface
for latched and unlatched configurations
Dimensions
Reference mm Notes
Minimum Maximum
HA 1,15 Basic dimension
a
5,69 5,89
T
b
– 5,44
T'
Y 0,92 1,02
a
Dimension T is given for a plug interface when it is not mated. The ferrule is movable by a certain axial
compression force, with direct contacting interface, and therefore the dimension T is variable. The ferrule
compression force should be 5,0 N to 6,0 N when the position of optical datum target, dimension T is moved
to the range of 5,19 mm to 5,39 mm. Forces are for buffered fibre only; different cord constructions can result
in higher forces, see IEC 60794-2-50.
b
Dimension T' defines distance from optical datum target to mechanical datum target with respect to adaptor-
to-receptacle installed by plug connector. T' will vary when adaptor-to-receptacle hook is interacting with the
latching-to-unlatching outer housing and front housing from plug connector, and it will not exceed the maximum
value when plug connector is engaged with adaptor-to-receptacle hook.

Bibliography
IEC 60794-2-50, Optical fibre cables – Part 2-50: Indoor cables – Family specification for
simplex and duplex cables for use in terminated cable assemblies
IEC 61754-4 (all parts), Fibre optic interconnecting devices and passive components – Fibre
optic connector interfaces
___________
– 32 – IEC 61754-36:2025 © IEC 2025
SOMMAIRE
AVANT-PROPOS . 34
1 Domaine d’application . 36
2 Références normatives . 36
3 Termes, définitions et termes abrégés . 36
3.1 Termes et définitions. 36
3.2 Abréviations . 36
4 Description . 37
5 Interfaces . 37
Annexe A (normative) Emplacement des cœurs de fibre . 49
Annexe B (informative) Informations dimensionnelles supplémentaires sur les
raccords . 50
Annexe C (informative) Mécanisme de verrouillage . 58
Bibliographie . 61

Figure 1 – Cible de référence de connecteur mâle duplex . 38
Figure 2 – Interface de connecteur mâle . 39
Figure 3 – Interface de connecteur mâle, PC avec angle . 41
Figure 4 – Interface de raccord duplex . 43
Figure 5 – Interface de raccord quadruplex . 45
Figure 6 – Interface d’embase de dispositif actif duplex . 46
Figure 7 – Interface d’embase de dispositif actif quadruplex . 47
Figure 8 – Broche calibrée pour les raccords et l’embase de dispositif actif . 48
Figure A.1 – Emplacements des cœurs de fibre . 49
Figure B.1 – Raccord duplex à bride rectangulaire avec trou de montage et découpe
du panneau. 50
Figure B.2 – Raccord rectangulaire duplex sans bride . 51
Figure B.3 – Raccord à bride rectangulaire quadruplex avec trou de montage et
découpe du panneau-, en considérant l’encombrement d’un connecteur SC simplex . 52
Figure B.4 – Raccord quadruplex rectangulaire sans bride, en considérant
l’encombrement d’un connecteur SC simplex. 53
Figure B.5 – Raccord rectangulaire octuplex à bride avec trou de montage et découpe
du panneau, en considérant l’encombrement d’un connecteur SC duplex . 54
Figure B.6 – Raccord octuplex sans bride, en considérant l’encombrement d’un
connecteur SC duplex . 55
Figure B.7 – Raccord rectangulaire octuplex à bride avec trou de montage et découpe
du panneau. 56
Figure B.8 – Raccord octuplex sans bride . 57
Figure C.1 – Configuration verrouillée d’un connecteur mâle sur une interface
raccord/embase . 58
Figure C.2 – Configuration déverrouillée d’un connecteur mâle par rapport à l’interface
raccord/embase . 59

Tableau 1 – Compatibilité d’accouplement fiche-raccord et fiche-embase . 37
Tableau 2 – Dimensions des interfaces de connecteurs mâles . 40
Tableau 3 – Dimensions de l’interface de fiche PC avec angle . 41

Tableau 4 – Dimensions de l’interface de raccord duplex . 44
Tableau 5 – Dimensions de base de l’interface de raccord quadruplex . 46
Tableau 6 – Dimensions de l’interface d’embase de dispositif actif duplex . 46
Tableau 7 – Dimensions de l’interface d’embase de dispositif actif quadruplex . 48
Tableau 8 – Dimensions de la broche calibrée . 48
Tableau B.1 – Dimensions d’un raccord duplex. 51
Tableau B.2 – Dimensions d’un raccord quadruplex à bride, en considérant
l’enco
...