SIST EN IEC 61754-7-2:2018

Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 7-2: Type MPO connector family - Two fibre rows (IEC 61754-7-2:2017)

This part of IEC 61754 defines the standard interface dimensions for the type MPO family of
connectors with two rows of fibres.

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Steckgesichter von Lichtwellenleiter-Steckverbindern - Teil 7-2: Steckverbinderfamilie der Bauart MPO - Zwei Faserreihen

Dispositifs d’interconnexion et composants passifs fibroniques - Interfaces de connecteurs fibroniques - Partie 7-2: Famille de connecteurs de type MPO - Deux rangées de fibres

IEC 61754-7-2: 2017 définit les dimensions d’interface normalisées pour la famille de connecteurs de type MPO comportant deux rangées de fibres. Cette première édition de l'IEC 61754-7-2, ainsi que la première édition de l'IEC 61754-7-1, annulent et remplacent la troisième édition de l'IEC 61754-7 publiée en 2008. Cette première édition de l'IEC 61754-7-2 contient les variantes MPO à deux rangées de fibres y compris l'ajout d'embases de dispositif actif et de fiches à angle orienté vers le haut. La première édition de l'IEC 61754-7-1 contient les variantes MPO à une rangée de fibres, ainsi que les embases de dispositif actif et les fiches à angle orienté vers le haut associées.

Optični spojni elementi in pasivne komponente - Vmesniki optičnih konektorjev - 7-2. del: Konektorska družina, tip MPO - Vlakna dvoredno (IEC 61754-7-2:2017)

Ta del standarda IEC 61754 opredeljuje standardne mere vmesnikov za družino konektorjev vrste MPO z dvorednimi vlakni.

General Information

• Status: Published
• Publication Date: 28-Mar-2018
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 21-Mar-2018
• Due Date: 26-May-2018
• Completion Date: 29-Mar-2018
• Ref Project: EN IEC 61754-7-2:2018 - Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 7-2: Type MPO connector family - Two fibre rows

Relations

• Splited From: SIST EN 61754-7:2008 - Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces -- Part 7: Type MPO connector family
• Effective Date: 29-Jan-2023
• Replaces: SIST EN 61754-7:2008 - Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces -- Part 7: Type MPO connector family
• Effective Date: 08-Oct-2012
• Replaces: SIST EN 61754-7:2008 - Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces -- Part 7: Type MPO connector family
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 61754-7-2:2018
01-maj-2018
1DGRPHãþD
SIST EN 61754-7:2008
2SWLþQLVSRMQLHOHPHQWLLQSDVLYQHNRPSRQHQWH9PHVQLNLRSWLþQLKNRQHNWRUMHY
GHO.RQHNWRUVNDGUXåLQDWLS0329ODNQDGYRUHGQR,(&
Fibre optic interconnecting devices and passive components - Fibre optic connector
interfaces - Part 7-2: Type MPO connector family - Two fibre rows (IEC 61754-7-2:2017)
Ta slovenski standard je istoveten z: EN IEC 61754-7-2:2018
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN IEC 61754-7-2:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61754-7-2:2018

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SIST EN IEC 61754-7-2:2018


EUROPEAN STANDARD EN IEC 61754-7-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2018
ICS 33.180.20 Supersedes EN 61754-7:2008 (partially)
English Version
Fibre optic interconnecting devices and passive components -
Fibre optic connector interfaces - Part 7-2: Type MPO connector
family - Two fibre rows
(IEC 61754-7-2:2017)
Dispositifs d'interconnexion et composants passifs Steckgesichter von Lichtwellenleiter-Steckverbindern - Teil
fibroniques - Interfaces de connecteurs fibroniques - Partie 7-2: Steckverbinderfamilie der Bauart MPO - Zwei
7-2: Famille de connecteurs de type MPO - Deux rangées Faserreihen
de fibres (IEC 61754-7-2:2017)
(IEC 61754-7-2:2017)
This European Standard was approved by CENELEC on 2018-01-17. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61754-7-2:2018 E

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SIST EN IEC 61754-7-2:2018
EN IEC 61754-7-2:2018 (E)


European foreword
The text of document (86B/4099/FDIS), future edition 1 of IEC 61754-7-2, prepared by IEC/SC 86B:
“Fibre optic interconnecting devices and passive components”, of IEC/TC 86: “Fibre optics”, was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61754-7-2:2018.

The following dates are fixed:
• latest date by which the document has to be (dop) 2018-10-17
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-01-17
• latest date by which the national
standards conflicting with the
document have to be withdrawn

This document partially supersedes EN 61754-7:2008.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61754-7-2:2017 was approved by CENELEC as a
European Standard without any modification.
2

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SIST EN IEC 61754-7-2:2018



IEC 61754-7-2

®


Edition 1.0 2017-12




INTERNATIONAL



STANDARD



















Fibre optic interconnecting devices and passive components – Fibre optic

connector interfaces –

Part 7-2: Type MPO connector family – Two fibre rows

























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 33.180.20 ISBN 978-2-8322-5066-2



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN IEC 61754-7-2:2018
– 2 – IEC 61754-7-2:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Description . 6
5 Interfaces . 7

Figure 1 – MPO connector configurations . 8
Figure 2 – MPO female plug, down-angled interface . 8
Figure 3 – MPO female plug, up-angled interface . 9
Figure 4 – Optical datum target location diagrams . 12
Figure 5 – Gauge pin . 13
Figure 6 – Gauge for plug . 13
Figure 7 – MPO male plug, down-angled interface . 14
Figure 8 – MPO male plug, up-angled interface . 15
Figure 9 – MPO adaptor interface, opposed keyway configuration . 18
Figure 10 – MPO female plug, flat interface . 20
Figure 11 – MPO male plug, flat interface . 22
Figure 12 – MPO backplane housing interface (1 of 2) . 24
Figure 13 – MPO printed board housing interface (1 of 2) . 28
Figure 14 – MPO adaptor interface, aligned keyway configuration . 31
Figure 15 – MPO active device receptacle, angled interface . 33
Figure 16 – MPO active device receptacle, flat interface . 35

Table 1 – Intermateability between plugs and adapters/housings/receptacles . 7
Table 2 – Dimensions of the MPO female plug, down or up-angled interface . 10
Table 3 – Dimensions of the gauge pin . 13
Table 4 – Dimensions of the gauge for plug . 14
Table 5 – Dimensions of the MPO male plug, down- or up-angled interface . 16
Table 6 – Dimensions of the MPO adaptor interface, opposed keyway configuration . 19
Table 7 – Dimensions of the MPO female plug, flat interface . 21
Table 8 – Dimensions of the MPO male plug, flat interface . 23
Table 9 – Dimensions of the MPO backplane housing . 26
Table 10 – Grade . 27
Table 11 – Dimensions of the MPO printed board housing interface . 30
Table 12 – Dimensions of the MPO adaptor interface, aligned keyway configuration . 32
Table 13 – Dimensions of the MPO active device receptacle, angled interface . 34
Table 14 – Dimensions of the MPO active device receptacle, flat interface . 36

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SIST EN IEC 61754-7-2:2018
IEC 61754-7-2:2017 © IEC 2017 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR INTERFACES –

Part 7-2: Type MPO connector family –
Two fibre rows

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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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 61754-7-2 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This first edition of IEC 61754-7-2, along with the first edition of IEC 61754-7-1, cancels and
replaces the third edition of IEC 61754-7 published in 2008.
This first edition of IEC 61754-7-2 includes the two fibre row MPO variants including the
addition of active device receptacles and up-angled plugs.
The first edition of IEC 61754-7-1 includes the one fibre row MPO variants and related active
device receptacles and up-angled plugs.

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SIST EN IEC 61754-7-2:2018
– 4 – IEC 61754-7-2:2017 © IEC 2017
Following the publication of both IEC 61754-7-1 and IEC 61754-7-2, IEC 61754-7 will be
withdrawn.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/4099/FDIS 86B/4110/RVD

Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the 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 "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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SIST EN IEC 61754-7-2:2018
IEC 61754-7-2:2017 © IEC 2017 – 5 –
INTRODUCTION
The International Electrotechnical Commission (IEC) draws attention to the fact that it is
claimed that compliance with this document may involve the use of patents concerning MPO
connectors.
The IEC takes no position concerning the evidence, validity and scope of these patent rights.
The holders of these patent rights have assured the IEC that they are willing to negotiate
licences under reasonable and non-discriminatory terms and conditions with applicants
throughout the world. In this respect, the statement of the holders of these patent rights is
registered with the IEC. Information may be obtained from:
Intellectual Property Department,
NTT Nippon Telegraph and Telephone Corporation,
3-19-2, Nishishinjuku, Shinjuku-ku
JP – Tokyo 163-19
Assistant Secretary
Laura Thomas
CommScope, Inc. of North Carolina
Hickory, North Carolina, USA
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights other than those identified above. IEC shall not be held responsible for
identifying any or all such patent rights.
ISO (www.iso.org/patents) and IEC (http://patents.iec.ch) maintain on-line data bases of
patents relevant to their standards. Users are encouraged to consult the data bases for the
most up to date information concerning patents.

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FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR INTERFACES –

Part 7-2: Type MPO connector family –
Two fibre rows



1 Scope
This part of IEC 61754 defines the standard interface dimensions for the type MPO family of
connectors with two rows of fibres.
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.
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 Description
The parent connector for the type MPO connector family is a multiway plug connector charac-
terized by a rectangular ferrule normally 6,4 mm × 2,5 mm which utilizes two pins of 0,7 mm
diameter as its alignment. The variant in this document provides a joint of 16 to 24 fibres by
arraying them between two pin-positioning holes in the ferrule in a two-layer (two-row)
arrangement. The connector includes a push-pull coupling mechanism and a ferrule spring
loaded in the direction of the optical axis. The connector has a single male key which may be
used to orient and limit the relative position between the connector and the component to
which it is mated.
Connector interfaces are configured using a female plug without pins, a male plug with pins
fixed and an adaptor as shown in Figure 1. The female plug is intermateable with the male
plug. There are two angled-interface plugs, one called down-angled and the other up-angled.
They are defined for both male and female plugs. The up and down descriptors refer to the tilt
direction of the ferrule’s angled end face relative to the fibre axis when looking toward the end
face with the plug’s key feature on the top. For down-angled plugs, the angled surface faces
slightly downward. For up-angled plugs, the angled surface faces slightly upward. These
different angles affect intermateability for the two adaptor types. An opposed keyway adaptor
mates two plugs with the keys in opposite orientations, for example one side keyway-up and
the other keyway-down. In contrast, an aligned keyway adaptor mates two plugs with the keys

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SIST EN IEC 61754-7-2:2018
IEC 61754-7-2:2017 © IEC 2017 – 7 –
in the same orientation. When using an opposed keyway adaptor with angled interfaces, two
down-angled plugs or two up-angled plugs shall be connected. For aligned keyway adaptors
with angled interfaces, one down-angled plug and one up-angled plug shall be connected.
Moreover, connector interfaces between the female plug and the male plug are configured by
applying a backplane housing and a printed board housing instead of the adaptor.
Additionally, the female plug interface is intermateable with the active device receptacle.
5 Interfaces
This document contains the following standard interfaces:
Interface IEC 61754-7-2-1: MPO female plug, down-angled interface for 16 to 24 fibres
Interface IEC 61754-7-2-2: MPO male plug, down-angled interface for 16 to 24 fibres
Interface IEC 61754-7-2-3: MPO adaptor interface – Opposed keyway configuration
Interface IEC 61754-7-2-4: MPO female plug, flat interface for 16 to 24 fibres
Interface IEC 61754-7-2-5: MPO male plug, flat interface for 16 to 24 fibres
Interface IEC 61754-7-2-6: MPO backplane housing interface
Interface IEC 61754-7-2-7: MPO printed board housing interface
Interface IEC 61754-7-2-8: MPO adaptor interface – Aligned keyway configuration
Interface IEC 61754-7-2-9: MPO active device receptacle, angled interface
Interface IEC 61754-7-2-10: MPO active device receptacle, flat interface
Interface IEC 61754-7-2-11: MPO female plug, up-angled interface for 16 to 24 fibres
Interface IEC 61754-7-2-12: MPO male plug, up-angled interface for 16 to 24 fibres
The interfaces showed in Table 1 are intermateable.
Table 1 – Intermateability between plugs and adapters/housings/receptacles
Female plugs Adaptors/housings/receptacles Male plugs
61754-7-2-1 61754-7-2-3 61754-7-2-2
61754-7-2-1 61754-7-2-8 61754-7-2-12
61754-7-2-11 61754-7-2-8 61754-7-2-2
61754-7-2-4 61754-7-2-3 and 61754-7-2-8 61754-7-2-5
61754-7-2-1 or 61754-7-2-6 and 61754-7-2-7 61754-7-2-2 or
61754-7-2-11 61754-7-2-12
61754-7-2-4 61754-7-2-6 and 61754-7-2-7 61754-7-2-5
61754-7-2-1 61754-7-2-9 N/A
61754-7-2-4 61754-7-2-10 N/A

NOTE Connector interfaces with 16 to 24 fibres will intermate and will correctly align the lower defined numbers
of optical datum targets (see Figure 4).

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Figure 1 shows MPO connector configurations.
IEC

Figure 1 – MPO connector configurations
Figures 2 and 3 show the down-angled and up-angled interface of the MPO female plug.
Table 2 gives the dimensions of the down- or up-angled interfaces of the MPO female plug.

IEC

Figure 2 – MPO female plug, down-angled interface

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IEC 61754-7-2:2017 © IEC 2017 – 9 –

IEC
Figure 3 – MPO female plug, up-angled interface

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Table 2 – Dimensions of the MPO female plug, down
or up-angled interface
Dimensions
Reference Remarks
Minimum Maximum

a
A 0,699 mm 0,701 mm
b
C 4,597 mm 4,603 mm
D 6,3 mm 6,5 mm
g
D1 6,7 mm -
E 8,34 mm 8,54 mm
F 9,49 mm 9,59 mm
G 10,85 mm 11,05 mm
H 12,19 mm 12,59 mm
c,f
I 8,8 mm 9,2 mm
J 7,9 mm 8,1 mm
K 1,4 mm –
d,e
L 0,2 mm 0,8 mm
M 2,4 mm 2,6 mm
N 2,8 mm 3,0 mm
O 4,89 mm 4,99 mm
P 5,59 mm 5,69 mm
Q 5,7 mm –
R – 7,7 mm
S 2,9 mm 3,1 mm
T – 0,8 mm
U 2,4 mm 2,5 mm
g
U1 2,7 mm -
AA 42° 45°
AB – 45°
AC – 45°
h,i
AD 7,5° 8,5°
The mating/unmating force between an MPO connector and adaptor shall not exceed 40,0 N.

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a
Each pin-hole shall accept a gauge pin as shown in Figure 5 to a depth of 5,5 mm with a maximum force of 1,7 N.
In addition, two pin-holes of a plug shall accept a gauge as shown in Figure 6 to a depth of 5,5 mm with a
maximum force of 3,4 N.
b
Dimension C is defined as the distance between two pin-hole centres.
c
Dimension I is given for a fibre end face centre of a plug end when not mated. It is noticed that a ferrule is
movable by a certain axial compression force, and therefore dimension I is variable. Ferrule compression
force shall be 18,0 N to 22,0 N when a position of the fibre end face from datum Z is in the range of 8,2 mm
to 8,4 mm.
d
The coupling sleeve shall be movable by a certain axial compression force. Dimension L is given for a
coupling sleeve end when not mated. Coupling sleeve compression force shall be 2,9 N to 6,9 N when the
position of the coupling sleeve end face from datum Z is in the range of 0 mm to 0,1 mm to the right or to the
left of datum Z.
e
An adaptor coupling part shall be unlocked by a left-direction movement of a coupling sleeve, when it is
separate from an adaptor. When the coupling sleeve is moved for unlocking, the position of the coupling
sleeve end face shall be larger than 2,0 mm in the left direction from datum Z.
f
Dimension I is defined at the centre line between the two pin-hole centres.
g
Dimensions D1 and U1 are defined only at the end of the connector as shown.

h
The down-angled and up-angled plugs shall be clearly marked to distinguish them from each other and flat
interfaces through the use of colour, labelling, or other appropriate identification method. This identification
method shall be visible when the plug is in the mated or unmated condition.
i
Since angled MPO connectors require a Y-offset of the fibre holes in relation to the guide pin holes, and the
Y-offset is referenced from the epoxy window of the ferrule, the angle shall be polished as a down-angle
from the epoxy window. The orientation of the ferrule epoxy window may be reversed in the MPO connector
to produce the up-angle variant.

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Figure 4 shows the optical datum target location diagrams. Figure 5 shows the gauge pin, and
its dimensions are given in Table 3.
Dimensions in millimetres
0,250 0,250
0,250 0,250
Y
Y
Sixteen fibres
Twenty fibres
0,250 0,250
Y
Twenty four fibres
IEC

NOTE The optical datum target location diagram is shown in the figure. Here, datum X is defined as the line
passing through two pin-hole centres, and datum Y is defined as the line perpendicular to datum X and passing
through the midpoint of two pin-hole centres.
Figure 4 – Optical datum target location diagrams
0,125 0,125 0,125 0,125
X
X

0,375 0,375
0,375 0,375
0,625
0,625 0,625
0,625
0,875 0,875
0,875 0,875
1,125
1,125
1,375 1,375
0,125 0,125
X
0,375
0,375
0,625
0,625
0,875
0,875
1,125
1,125

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BB
BC
B

IEC
Figure 5 – Gauge pin
Table 3 – Dimensions of the gauge pin
Dimensions
mm
Reference Remarks
Minimum Maximum
a
A 0,698 5 0,699 0
b
B 10,8 11,2
BA 0,2 0,4
BB 0,2 0,5
BC 6,0 –
a
Surface roughness R = 0,1 µm for the length of dimension BC.
z
b
Typical dimensions.

Figure 6 shows the gauge for the plug, and its dimensions are given in Table 4.
∅0,001
W
W
BB
U
BC
0,000 5
IEC

Figure 6 – Gauge for plug
∅BA
∅A
D
C
∅BA
∅A
0,0005

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Table 4 – Dimensions of the gauge for plug
Dimensions
mm
Reference Remarks
Minimum Maximum
a
A 0,698 5 0,699 0
C 4,599 5 4,600 5
b
D 6,3 6,5
b
U 2,4 2,5
BA 0,2 0,4
BB 0,2 0,5
BC 6,0 6,5
a
Surface roughness R = 0,1 µm.
z
b
Typical dimensions.

Figure 7 and 8 show the down-angled and up-angled interface of the MPO male plug,
respectively. Table 5 gives the dimensions of the down- or up-angled interfaces of the MPO
male plug.

IEC

Figure 7 – MPO male plug, down-angled interface

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IEC
Figure 8 – MPO male plug, up-angled interface

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SIST EN IEC 61754-7-2:2018
– 16 – IEC 61754-7-2:2017 © IEC 2017
Table 5 – Dimensions of the MPO male plug,
down- or up-angled interface
Dimensions
Reference Remarks
Minimum Maximum
a
A 0,697 mm 0,699 mm
b
C 4,597 mm 4,603 mm
D 6,3 mm 6,5 mm
h
D1 6,7 mm -
E 8,34 mm 8,54 mm
F 9,49 mm 9,59 mm
G 10,85 mm 11,05 mm
H 12,19 mm 12,59 mm
c,g
I 8,8 mm 9,2 mm
J 7,9 mm 8,1 mm
K 1,4 mm –
d,e
L 0,2 mm 0,8 mm
M 2,4 mm 2,6 mm
N 2,8 mm 3,0 mm
O 4,89 mm 4,99 mm
P 5,59 mm 5,69 mm
Q 5,7 mm –
R – 7,7 mm
S 2,9 mm 3,1 mm
T – 0,8 mm
U 2,4 mm 2,5 mm
h
U1 2,7 mm -
AA 42º 45º
45º
AB –
AC – 45º
i,j
AD 7,5º 8,5º
f
BA 0,2 mm 0,4 mm
BB 0,2 mm 0,5 mm
CA 1,6 mm 3,3 mm
The mating/unmating force between an MPO connector and adaptor shall not exceed 40,0 N.

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SIST EN IEC 61754-7-2:2018
IEC 61754-7-2:2017 © IEC 2017 – 17 –

a
Each guide pin shall be retained with a minimum force of 19,6 N. Surface roughness R shall be below
z
0,5 µm.

b
Dimension C is defined as the distance between two guide-pin centres.

c
Dimension I is given for a fibre end face centre of a plug end when not mated. It is noticed that a ferrule is
movable by a certain axial compression force, and therefore the dimension I is variable. Ferrule compression
force shall be 18,0 N to 22,0 N when a position of the fibre end face from datum Z is in the range of 8,2 mm to
8,4 mm.
d
Coupling sleeve shall be movable by a certain axial compression force. Dimension L is given for a coupling
sleeve end when not mated. Coupling sleeve compression force shall be 2,9 N to 6,9 N when a position of
the coupling sleeve end face from datum Z is in the range of 0 mm to 0,1 mm to the right or to the left of
datum Z.

e
An adaptor coupling part shall be unlocked by a left-direction movement of a coupling sleeve, when it is
separate from an adaptor. When the coupling sleeve is moved for unlocking, a position of the coupling
sleeve end face shall be larger than 2,0 mm in the left direction from datum Z.
f
The top shape of guide-pin may be a round shape that is symmetrical about the guide-pin axis with a
minimum radius of 0,15 mm.
g
Dimension I is defined at the centre line between the two guide-pin centres.

h
Dimensions D1 and U1 are defined only at the end of the connec
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