IEC 61754-7:1996/AMD1:1999

Amendment 1 - Fibre optic connector interfaces - Part 7: Type MPO connector family

General Information

• Status: Published
• Publication Date: 12-Aug-1999
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Current Stage: DELPUB - Deleted Publication
• Start Date: 29-Nov-2004
• Completion Date: 14-Feb-2026

Relations

• Amends: IEC 61754-7:1996 - Fibre optic connector interfaces - Part 7:Type MPO connector family
• Effective Date: 05-Sep-2023
• Revised: IEC 61754-7:2004 - Fibre optic connector interfaces - Part 7: Type MPO connector family
• Effective Date: 05-Sep-2023

Overview

IEC 61754-7:1996/AMD1:1999 is the first amendment to the original IEC 61754-7 standard, which specifies the interface requirements for fibre optic connectors. Part 7 focuses particularly on the MPO (Multi-Fibre Push-On/Pull-off) connector family, addressing the key physical interface characteristics for both female and male plug connectors used within fibre optic communication systems. This amendment was prepared by IEC technical subcommittee 86B, further refining the definitions and dimensional details essential for MPO connector interoperability.

By standardizing the geometry and interfacing of MPO connectors, the document helps ensure reliability, performance, and compatibility in fibre optic networks - a critical factor for data centers, telecommunications, and high-speed network environments.

Key Topics

• MPO Connector Interfaces:
  The amendment elaborates on flat interface designs for both female and male MPO plugs, providing detailed dimensional and functional specifications.

• Intermateability:
  Specifications are supplied for connecting female plugs, adaptors, and male plugs, ensuring cross-compatibility among products conforming to related parts of IEC 61754-7.

• Critical Dimensions and Tolerances:
  The standard amendment supplies minimum and maximum values for key connector dimensions, which are vital to maintain fibre alignment, mechanical reliability, and low optical loss.

• Connector Pin and Ferrule Requirements:
  Pin-hole and guide-pin retention strengths, as well as axial compression forces for ferrules and coupling sleeves, are clearly specified to maintain robust connections over time.

• Testing and Gauge Acceptance:
  The document includes notes on testing connectors with specific gauges and force limits, supporting quality assurance for manufacturers and installers.

Applications

• Data Centers:
  The standardized MPO interfaces are widely used in high-density fibre optic links required in data centers, supporting structured cabling and rapid deployment.

• Telecommunications Networks:
  Service providers rely on compliant MPO connectors for backbone infrastructure, ensuring seamless connections between network segments and equipment.

• Enterprise Networks:
  Many enterprise networks leverage MPO connectors for scalable, modular fibre installations in campus and building networks.

• OEM and Connector Manufacturing:
  The dimensional and mechanical requirements provided in this amendment guide manufacturers in the design and production of fully compatible MPO connectors, reducing risk of mismatch or failure in the field.

• Testing and Certification:
  Accredited laboratories and installation specialists use these requirements as benchmarks for product certification and quality compliance in fibre optic cabling projects.

Related Standards

Organizations and professionals utilizing IEC 61754-7:1996/AMD1:1999 should also refer to:

• IEC 61754-7:
  The base standard for fibre optic connector interfaces - Part 7: Type MPO connector family.

• IEC 61754 Series:
  Covers a broad array of fibre optic connector types used in various networking and communication environments.

• IEC 61755 and IEC 61300:
  Standards addressing connector end-face geometry and test procedures.

• ISO/IEC 11801:
  Relates to generic cabling for customer premises, often referencing MPO connectors for high-speed structured cabling.

Following these international fibre optic connector standards ensures strong interoperability, system reliability, and global compatibility for MPO-based fibre optic networks. This amendment is essential for any stakeholder in design, manufacturing, installation, or maintenance of fibre optic infrastructure leveraging MPO technology.

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61754-7
AMENDMENT 1
1999-08
Amendment 1
Fibre optic connector interfaces –
Part 7:
Type MPO connector family
Amendement 1
Interfaces de connecteurs pour fibres optiques –
Partie 7:
Famille de connecteurs de type MPO

 IEC 1999  Copyright - all rights reserved
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
F
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61754-7 Amend. 1 © IEC:1999(E)

FOREWORD
This amendment has been prepared by subcommittee 86B: Fibre optic interconnecting devices
and passive components, of IEC technical committee 86: Fibre optics.

The text of this amendment is based on the following documents:

FDIS Report on voting
86B/1213/FDIS 86B/1250/RVD
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
A bilingual version of this publication may be issued at a later date.
____________
Page 4
3 Interfaces
Add the following test after "interface 7-3: MPO adaptor interface – Push/pull":
Interface 7-4: MPO female plug connector flat interface – Push/pull
Interface 7-5: MPO male plug connector flat interface – Push/pull
The following standards are intermateable:
Female plugs Adaptors Male plugs
61754-7-1 61754-7-3 61754-7-2
61754-7-4 61754-7-3 61754-7-5
61754-7 Amend. 1 © IEC:1999(E) – 3 –

Page 15
Add the following new figures and tables after table 3:

IEC  941/99
Figure 5 – MPO female plug connector flat interface
∅A
∅E
∅F
∅G
∅H
– 4 – 61754-7 Amend. 1 © IEC:1999(E)

Table 4 – Dimensions of the MPO female plug connector flat interface

Reference Dimensions Notes
Minimum Maximum
A 0,699 mm 0,701 mm 1
C 4,597 mm 4,603 mm 2
D 6,3 mm 6,5 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
I 8,8 mm 9,2 mm 3
J 7,9 mm 8,1 mm
K 1,4 mm   –
L 0,2 mm 0,8 mm 4 and 5
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
U 2,4 mm 2,5 mm
AA 42° 45°
AB  – 45°
AC  – 45°
NOTE 1 – Each pin-hole shall accept a gauge pin as shown in figure 2c 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 2d to a
depth of 5,5 mm with a maximum force of 3,4 N.
NOTE 2 – Dimension C is defined as the distance between two pin-hole centres.
NOTE 3 – Dimension I is given for a fibre endface 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 varia
...