BS EN 61754-15-2009 (2014) PDF

Full title and description

STB BS EN 61754-15-2009 (2014) — Fibre optic interconnecting devices and passive components — Fibre optic connector interfaces — Part 15: Type LSH connector family. This is the British/European adoption of IEC 61754-15:2009, specifying mechanical interface dimensions and mating details for the LSH family of optical fibre connectors.

Abstract

This standard defines the standard mechanical interfaces for the Type LSH connector family (2.5 mm nominal ferrule diameter) including simplex and duplex plug and adaptor interfaces, PC and APC (8°) endface variants, and active‑device interfaces. It provides dimensional drawings, tolerances, ferrule/endface geometry requirements and mating/float allowances intended to ensure intermateability and reliable optical alignment.

General information

• Status: Adopted/active national adoption of the EN/IEC edition (BS EN adoption).
• Publication date: Based on IEC 61754-15:2009 (base publication date 10 June 2009); British/EN adoption published 31 July 2014.
• Publisher: British Standards Institution (BSI) as BS EN (European Norm originating from IEC).
• ICS / categories: 33.180.20 — Fibre optic interconnecting devices and passive components.
• Edition / version: Edition based on IEC/EN 61754-15:2009 (Edition 2.0); corrigendum incorporated (2014).
• Number of pages: Publisher copies vary (IEC published edition: 28 pages; BSI/EN publication listing: ~20 pages — actual page count depends on publisher formatting).

Scope

The document specifies standard interface dimensions and related mechanical requirements for the Type LSH connector family used in fibre‑optic interconnecting devices and passive components. It covers simplex and duplex plugs and adaptors, active‑device interfaces, both PC and APC endface variants, alignment and mating features, tolerances and ferrule/endface geometry necessary to guarantee mechanical intermateability and optical performance.

Key topics and requirements

• Definition of seven interface types for the LSH family (plug/adaptor/active‑device; simplex/duplex; PC and APC variants).
• Nominal ferrule diameter: 2.5 mm and related ferrule/endface geometry requirements (grades, dome eccentricity, APC 8° specifications).
• Dimensional drawings and tolerances for plugs, adaptors and active‑device receptacles (mechanical reference planes, float allowances, coupling features).
• Coupling mechanism description: push‑click‑pull coupling with spring‑loaded ferrule and alignment by resilient sleeve or rigid bore as applicable.
• Intermateability guidance and tables showing which plug/adaptor combinations mate.

Typical use and users

Engineers and designers of fibre‑optic transceivers, patch panels, adaptors and connectors use this standard when specifying or verifying mechanical compatibility for LSH family connectors. Manufacturers, quality and test engineers, procurement specialists and standards librarians in telecom, datacom and optical component supply chains also rely on this document to ensure interchangeability and to check mechanical drawings against standard dimensions.

Related standards

IEC/EN 61754 series (other parts defining mechanical interfaces for different connector families), IEC 61300 series (fibre‑optic test methods), IEC 60793 (optical fibre specifications), IEC 61753 (product performance for fibre optic interconnecting devices) and relevant EN/BS publications on connector performance and cabling infrastructure.

Keywords

LSH connector, fibre optic connector interfaces, ferrule 2.5 mm, PC, APC 8°, adaptor, plug, intermateability, IEC 61754-15, BS EN 61754-15.

FAQ

Q: What is this standard?

A: It is the British/European adoption (BS EN) of IEC 61754-15:2009 specifying the mechanical interface dimensions for the Type LSH family of fibre‑optic connectors.

Q: What does it cover?

A: Mechanical drawings, dimensional tolerances, ferrule and endface geometry, coupling and alignment features for simplex/duplex plugs, adaptors and active‑device interfaces in the LSH connector family, including PC and APC (8°) variants.

Q: Who typically uses it?

A: Connector and component manufacturers, product and mechanical designers, test and quality engineers, and procurement/specification teams in telecoms, datacom and optical component industries.

Q: Is it current or superseded?

A: The edition referenced is based on IEC 61754-15:2009 with a corrigendum incorporated (corrigendum noted in 2014) and was adopted as a BS EN publication; users should check the national standards body or IEC webstore for any later amendments or newer editions before final specification.

Q: Is it part of a series?

A: Yes — it is one part of the IEC/EN 61754 series, each part defining mechanical interfaces for different fibre‑optic connector families.

Q: What are the key keywords?

A: LSH, fibre optic connector, ferrule 2.5 mm, PC, APC, intermateability, mechanical interface, IEC 61754.