IEC PAS 63503-3-30:2023

Fibre optic interconnecting devices and passive components - Connector optical interfaces for multi-core fibre - Part 3-30: Connector parameters of standard outer diameter 4-core physically contacting fibres - Non-angled 2,5 mm and 1,25 mm diameter cylindrical full zirconia ferrules

IEC PAS 63503-3-30:2023 defines the dimensional limits of the optical interface for 125 μm outer diameter 4-core physically contacting fibre optic connectors with 2,5 mm or 1,25 mm diameter cylindrical zirconia (ZrO2) ferrules to ensure reliable interconnection and intermateability.
Ferrules made from the material specified in this document are suitable for use in all the operating service environments defined in IEC 61753-1.
Ferrule dimensions and features are contained in the IEC 61754 series of fibre optic connector interface standards.

General Information

• Status: Published
• Publication Date: 07-Nov-2023
• 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: 08-Nov-2023
• Completion Date: 25-Aug-2023

Overview

IEC PAS 63503-3-30:2023 is a publicly available specification developed by the International Electrotechnical Commission (IEC) focused on fibre optic interconnecting devices and passive components. This standard defines the dimensional limits and interface parameters for connectors that utilize 125 μm outer diameter 4-core physically contacting fibres. It specifically addresses connectors that employ non-angled, 2.5 mm or 1.25 mm diameter cylindrical full zirconia (ZrO₂) ferrules, ensuring compatibility and reliable interconnection in optical communication systems.

By setting clear requirements for the physical interface of these fibre optic connectors, the standard plays a crucial role in supporting interoperability and quality in advanced communication networks, particularly those utilizing multi-core fibre technology.

Key Topics

• Dimensional Limits for Connectors: The standard details precise measurements for the optical interface of 4-core fibre connectors, focusing on ferrule diameter (2.5 mm and 1.25 mm options) and ensuring consistent fit and function.
• Full Zirconia Ferrules: Requirements apply to ferrules made of zirconia, a robust material recognized for maintaining alignment and performance in diverse service environments.
• Non-Angled Physical Contact (PC) Termination: The standard covers connectors with a physically contacting, but not angled, endface-a design that maximizes fibre-to-fibre contact and minimizes signal loss.
• Intermateability and Reliability: Emphasizes parameters like endface spherical radius, apex offset, axial force, and fibre undercut or protrusion to support reliable, repeatable connections.
• Environmental Suitability: Specifies that connectors manufactured to this standard meet the operational requirements as defined in IEC 61753-1.
• Compatibility with Existing Standards: Ferrule dimensions and features align with the IEC 61754 series, supporting system-level interoperability.

Applications

• Telecommunication Networks: Ideal for next-generation high-capacity optical networks where multi-core fibre is increasingly utilized to boost data throughput and reduce space requirements.
• Data Centers: Supports dense fibre connectivity for high-speed data transmission in modern data centers.
• Industrial and Commercial Installations: Ensures reliable connections in controlled and harsh environments, as full zirconia ferrules are resistant to wear and offer stable performance.
• Testing and Measurement: Provides a consistent baseline for evaluating connector performance and interoperability in laboratory or manufacturing settings.
• System Design and Integration: Assists manufacturers and engineers in the design of fibre optic interconnecting devices by describing the critical physical parameters for connector interfaces.

Related Standards

• IEC 61753-1: General and guidance for performance standards of fibre optic interconnecting devices and passive components, crucial for defining environmental and operational parameters.
• IEC 61300-3-47: Addresses the measurement of endface geometry for physical contact and angled physical contact ferrules using interferometry, directly relevant for verifying compliance with this standard.
• IEC 61754 Series: Specifies connector interface standards for a wide range of fibre optic connectors, including dimensional and functional attributes for intermateability.
• IEC 61755 Series: Focuses on optical interface specifications for different fibre optic connector types, offering further guidance for design and performance assessment.

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IEC PAS 63503-3-30:2023 is fundamental for anyone involved in the manufacturing, selection, or installation of multi-core fibre optic connector solutions. By adhering to this standard, organizations ensure reliable fibre optic connectivity, future-proofing their infrastructure to meet demanding data and communication requirements.

Keywords: fibre optic connectors, multi-core fibre, 4-core physically contacting fibres, zirconia ferrules, IEC standards, connector dimensional limits, optical interface parameters, data center fibre, telecommunications infrastructure.

Standards Content (Sample)

IEC PAS 63503-3-30 ®
Edition 1.0 2023-11
PUBLICLY AVAILABLE
SPECIFICATION
colour
inside
Fibre optic interconnecting devices and passive components – Connector
optical interfaces for multi-core fibre –
Part 3-30: Connector parameters of standard outer diameter 4-core physically
contacting fibres – Non-angled 2,5 mm and 1,25 mm diameter cylindrical full
zirconia ferrules
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IEC PAS 63503-3-30 ®
Edition 1.0 2023-11
PUBLICLY AVAILABLE
SPECIFICATION
colour
inside
Fibre optic interconnecting devices and passive components – Connector

optical interfaces for multi-core fibre –

Part 3-30: Connector parameters of standard outer diameter 4-core physically

contacting fibres – Non-angled 2,5 mm and 1,25 mm diameter cylindrical full

zirconia ferrules
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.20 ISBN 978-2-8322-7738-6

– 2 – IEC PAS 63503-3-30:2023 © IEC 2023
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Description . 5
5 Interface parameters . 6
Annex A (informative) Maximum allowed spherical fibre undercut . 9
Bibliography . 11

Figure 1 – Connector plug endface dimensions . 6
Figure 2 – Ferrule dimensions . 8
Figure A.1 – Allowable undercut as a function of endface radius and apex offset – 4,9
N minimum contact force . 10

Table 1 – Optical interface parameter values for 2,5 mm diameter ferrule . 7
Table 2 – Optical interface parameter values for 1,25 mm diameter ferrule . 7
Table 3 - Optical interface parameter values for PC ferrules . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS
– CONNECTOR OPTICAL INTERFACES FOR MULTI-CORE FIBRE –

Part 3-30: Connector parameters of standard outer diameter 4-core
physically contacting fibres – Non-angled 2,5 mm and 1,25 mm diameter
cylindrical full zirconia ferrules

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