IEC 61754-24-21-2009 PDF

Full title and description

Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 24-21: Type SC‑RJ connectors with protective housings based on IEC 61076‑3‑106, variant 06. This part defines the SC‑RJ connector interface equipped with a protective housing intended to upgrade the existing IEC 61754‑24 interface for use in harsh industrial environments with IP65/IP67 protection levels.

Abstract

IEC 61754‑24‑21:2009 specifies the interface dimensions and basic requirements for SC‑RJ fibre‑optic connectors fitted with a protective housing (variant 06 of IEC 61076‑3‑106) so that the optical connector family defined in IEC 61754‑24 can be implemented with ingress protection up to IP65/IP67 as defined in IEC 60529. The standard is intended to support industrial cabling and equipment that require ruggedized optical connections.

General information

• Status: Published / Current (stable publication listed by IEC; adopted by several national bodies).
• Publication date: 10 June 2009 (IEC publication).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.180.20 — Fibre optic interconnecting devices.
• Edition / version: Edition 1.0 (2009).
• Number of pages: Listed by the IEC webstore as 20 pages (some national catalogues/implementations list variations in pagination, typically 10–20 pages depending on national publication format).

Scope

This standard serves as an interface specification for the family of SC‑RJ connectors when used with a protective housing per IEC 61076‑3‑106 (variant 06). It defines the interface form, key dimensions and the intent to enable IP65 and IP67 degrees of protection in accordance with IEC 60529 so that the connector can be used reliably in industrial and other harsh environments. Normative references include IEC 61076‑3‑106, IEC 60529 and relevant IEC performance and test documents.

Key topics and requirements

• Interface definition for SC‑RJ family fitted with protective housing (variant 06 of IEC 61076‑3‑106).
• Design intent to meet ingress protection levels IP65 and IP67 when installed as specified.
• Dimensional and mating interface requirements to maintain compatibility with IEC 61754‑24 interfaces where applicable.
• Normative references and linkage to connector performance/test standards (for example IEC 60529 and IEC 61753 series for performance tests).
• Guidance for use in industrial and harsh‑environment applications, including mechanical and environmental considerations for housings.

Typical use and users

Used by connector and equipment designers, fibre‑optic component manufacturers, systems integrators for industrial networks, panel and enclosure designers, test laboratories, and standards committees. Typical applications include industrial Ethernet, factory automation, outdoor enclosures, and other installations requiring sealed/rugged optical connections.

Related standards

Closely related to IEC 61754‑24 (the base SC‑RJ interface family), IEC 61076‑3‑106 (protective housings — variant 06), IEC 60529 (IP code — degrees of protection), and the IEC 61753 series (performance and test procedures for fibre‑optic interconnecting devices). National adoptions (EN/DIN/UNE etc.) exist under the EN designation in some regions.

Keywords

IEC 61754, SC‑RJ, protective housing, IEC 61076‑3‑106, IP65, IP67, fibre optic connector interface, industrial connector, fibre interconnecting devices.

FAQ

Q: What is this standard?

A: IEC 61754‑24‑21:2009 is an IEC interface standard that defines the SC‑RJ connector family fitted with a protective housing (variant 06) intended to provide ruggedized optical connections suitable for IP65/IP67 environments.

Q: What does it cover?

A: It covers the interface definition, key dimensions and intent for ingress protection upgrades to the SC‑RJ family so the connector can be used in harsh/industrial environments, and it references relevant connector housing and IP‑rating standards.

Q: Who typically uses it?

A: Connector manufacturers, industrial equipment designers, systems integrators, test laboratories and standards bodies — anyone specifying or implementing ruggedized SC‑RJ optical interfaces.

Q: Is it current or superseded?

A: The IEC record lists IEC 61754‑24‑21:2009 as a published (active) part with a stability indication from the IEC record; users should check national adoption status for any administrative updates, but the IEC publication date is 10 June 2009. For product design and compliance verification always confirm whether a newer revision or withdrawal has occurred since 2009.

Q: Is it part of a series?

A: Yes — it is a part (24‑21) of the IEC 61754 series (Fibre optic connector interfaces). It also intentionally references IEC 61754‑24 (the base SC‑RJ interface family) and related connector/housing standards such as IEC 61076‑3‑106.

Q: What are the key keywords?

A: SC‑RJ, protective housing, variant 06, IEC 61076‑3‑106, IP65, IP67, fibre optic connector interfaces, IEC 61754.