EN IEC 61754-37:2025

SLOVENSKI STANDARD
oSIST prEN IEC 61754-37:2022
01-marec-2022
Optični spojni elementi in pasivne komponente - Vmesniki za optične konektorje -
37. del: Družina konektorjev vrste MDC
Fibre optic interconnecting devices and passive components - Fibre optic connector
interfaces - Part 37: Type MDC connector family
Ta slovenski standard je istoveten z: prEN IEC 61754-37:2022
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
oSIST prEN IEC 61754-37:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61754-37:2022
oSIST prEN IEC 61754-37:2022
86B/4561/CDV
COMMITTEE DRAFT FOR VOTE (CDV)

PROJECT NUMBER:
IEC 61754-37 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-01-21 2022-04-15
SUPERSEDES DOCUMENTS:
86B/4490/CD, 86B/4520A/CC
IEC SC 86B : FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS
SECRETARIAT: SECRETARY:
Japan Mr Shigeru Tomita
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

TITLE:
Fibre optic interconnecting devices and passive components – Fibre optic connector interfaces-
Part 37: Type MDC connector family

PROPOSED STABILITY DATE: 2032
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 61754-37:2022
IEC CDV 61754-37/Ed1 © IEC 2022 2 86B/4561/CDV

1 CONTENTS
3 FOREWORD . 3
4 INTRODUCTION . 5
5 1 Scope . 6
6 2 Normative references . 6
7 3 Terms and definitions . 6
8 4 Abbreviated Terms . 6
9 5 Description . 6
10 6 Interfaces . 7
11 Annex A (informative) Additional adaptor dimensional information . 18
12 Annex B (normative) Oriented fibre core location . 23
13 Annex C (informative) MDC latch . 24
14 BIBLIOGRAPHY . 26
16 Figure 1 – Duplex plug connector reference planes . 8
17 Figure 2 – Duplex plug connector interface . 9
18 Figure 3 – Quadruplex plug connector interface . 9
19 Figure 4 – Angled PC duplex plug connector interface . 10
20 Figure 5 – Duplex adaptor interface . 12
21 Figure 6 – Quadruplex adaptor interface . 13
22 Figure 7 – Pin gauge for adaptors and active device receptacle interface . 14
23 Figure 8 – Duplex active device receptacle interface . 15
24 Figure 9 – Quadruplex active device receptacle interface . 16
25 Figure A.1 – Duplex reduced and full flange adaptor . 18
26 Figure A.2 – Quadruplex reduced and full flange adaptor . 20
27 Figure A.3 – Octoplex reduced and full flange adaptor . 21
28 Figure B.1 – Oriented fibre core locations . 23
29 Figure C.1 – Latch/Latch Release . 24
30 Figure C.2 – Thumb Latch . 25
32 Table 1 – Plug to Adaptor/Receptacle Intermateability . 7
33 Table 2 – Dimensions of the duplex plug connector interface (PC and APC) . 10
34 Table 3 – Dimensions of duplex and quadruplex adaptor interfaces . 14
35 Table 4 – Pin gauge dimensions . 15
36 Table 5 – Dimensions of duplex and quadruplex active device receptacle interface . 17
37 Table A.1 – Dimensions of duplex reduced and full flange adaptor . 19
38 Table A.2 – Dimensions of quadruplex reduced and full flange adaptor . 20
39 Table A.3 – Dimensions of octoplex reduced and full flange adaptor . 22

oSIST prEN IEC 61754-37:2022
IEC CDV 61754-37/Ed1 © IEC 2022 3 86B/4561/CDV

40 INTERNATIONAL ELECTROTECHNICAL COMMISSION
41 ____________
43 FIBRE OPTIC INTERCONNECTING DEVICES
44 AND PASSIVE COMPONENTS –
45 FIBRE OPTIC CONNECTOR INTERFACES –
47 Part 37: Type MDC connector family
51 FOREWORD
52 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all
53 national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-
54 operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition
55 to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly
56 Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is
57 entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate
58 in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also
59 participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO)
60 in accordance with conditions determined by agreement between the two organizations.
61 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
62 consensus of opinion on the relevant subjects since each technical committee has representation from all interested
63 IEC National Committees.
64 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
65 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
66 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
67 misinterpretation by any end user.
68 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
69 transparently to the maximum extent possible in their national and regional publications. Any divergence between
70 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
71 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
72 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services
73 carried out by independent certification bodies.
74 6) All users should ensure that they have the latest edition of this publication.
75 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
76 members of its technical committees and IEC National Committees for any personal injury, property damage or other
77 damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising
78 out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
79 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
80 indispensable for the correct application of this publication.
81 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
82 rights. IEC shall not be held responsible for identifying any or all such patent rights.
83 International Standard IEC 61754-37 has been prepared by subcommittee 86B: Fibre optic
84 interconnecting devices and passive components, of IEC technical committee 86B: Fibre Optics.
85 The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/XX/FDIS 86B/XX/RVD
oSIST prEN IEC 61754-37:2022
IEC CDV 61754-37/Ed1 © IEC 2022 4 86B/4561/CDV

87 Full information on the voting for the approval of this International Standard can be found in the
88 report on voting indicated in the above table.
89 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
90 The committee has decided that the contents of this document will remain unchanged until the
91 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the
92 specific document. At this date, the document will be
93 • reconfirmed,
94 • withdrawn,
95 • replaced by a revised edition, or
96 • amended.
oSIST prEN IEC 61754-37:2022
IEC CDV 61754-37/Ed1 © IEC 2022 5 86B/4561/CDV

97 INTRODUCTION
98 The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed
99 that compliance with this document may involve the use of patent concerning IEC 61754-37.
100 IEC takes no position concerning the evidence, validity and scope of this patent right.
101 The holder of this patent right has assured the IEC that he/she is willing to negotiate licenses
102 under reasonable and non-discriminatory terms and conditions with applicants throughout the
103 world. In this respect, the statement of the holder of this patent right is registered with IEC.
104 Information may be obtained from:
105 US Conec, Ltd.
106 1138 25th St SE
107 Hickory, NC 28602
109 Attention is drawn to the possibility that some of the elements of this document may be the subject
110 of patent rights other than those identified above. IEC shall not be held responsible for identifying
111 any or all such patent rights.
112 ISO (www.iso.org/patents) and IEC (http://iec.ch/tctools/patent_decl.htm) maintain on-line data
113 bases of patents relevant to their standards. Users are encouraged to consult the data bases for
114 the most up to date information concerning patents.
oSIST prEN IEC 61754-37:2022
IEC CDV 61754-37/Ed1 © IEC 2022 6 86B/4561/CDV

116 FIBRE OPTIC INTERCONNECTING DEVICES
117 AND PASSIVE COMPONENTS –
118 FIBRE OPTIC CONNECTOR INTERFACES –
120 Part 37: Type MDC connector family
122 1 Scope
123 This document defines the standard mechanical interface dimensions for the type of MDC family
124 of connectors.
125 2 Normative references
126 The following documents are referred to in the text in such a way that some or all of their content
127 constitutes requirements of this document. For dated references, only the edition cited applies.
128 For undated references, the latest edition of the referenced document (including any amendments)
129 applies.
130 IEC 60794-2-50, Optical fibre cables- Part 2-50: Indoor cables- Family specification for simplex
131 and duplex cables for use in terminated cable assemblies
132 IEC 61754-1, Fibre optic interconnecting devices and passive components - Fibre optic connector
133 interfaces - Part 1: General and guidance
134 IEC 61755-3-1, Fibre optic connector optical interfaces – Part 3-1: Optical interface, 2,5 mm and
135 1,25 mm diameter cylindrical full zirconia PC ferrule, single mode fibre, 2006
136 IEC 61755-3-2, Fibre optic connector optical interfaces – Part 3-2: Optical interface, 2,5 mm and
137 1,25 mm diameter cylindrical full zirconia ferrules for 8 degrees angled-PC single mode fibres,
138 2006
139 IEC 63267 Series, Fib
...