SIST EN 4532:2009

• Abstract:

  This standard covers two cable types, Type A and Type B.; Type A, jacketed fibre, is intended for printed circuit board inter-connection applications inside equipment. ; Type B, single core, is intended for general airframe and equipment inter-connection cable suitable for installation in all aircraft locations, with exception of power plant compartments.; These cables are particularly suitable for use in military aircraft as well as for general civil aircraft applications.

• Status: Published
• Publication Date: 17-Mar-2009
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Mar-2009
• Due Date: 15-May-2009
• Completion Date: 18-Mar-2009
• Ref Project: EN 4532:2009 - Aerospace series - Cables, optical, single core 200 µm/280 µm fibre, 2,5 mm outer jacket - Technical specification

• Refers: SIST EN 3745-411:2019 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 411: Resistance to fluids
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-512:2006 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 512: Flexure endurance
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-402:2006 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 402: Temperature cycling
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-301:2012 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 301: Attenuation
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-406:2006 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 406: Cold bend test
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-412:2022 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 412: Humidity resistance
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-514:2009 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 514: Cable twist bend
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-203:2008 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 203: Cable dimensions
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-705:2008 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 705: Contrast measurement
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-510:2026 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 510: Bending test
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-100:2008 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 100: General
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-503:2006 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 503: Scrape abrasion
• Effective Date: 28-Jan-2026
• Refers: SIST EN 2591-316:2001 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 316: Ozone resistance
• Effective Date: 28-Jan-2026
• Refers: SIST EN 13724:2004 - Postal services - Apertures of private letter boxes and letter plates - Requirements and test methods
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3745-506:2019 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 506: Impact resistance
• Effective Date: 28-Jan-2026

SIST EN 4532:2009 is the Slovenian adoption of EN 4532:2009 for aerospace optical cables with a single core 200 µm/280 µm fibre and a 2,5 mm outer jacket. It specifies two cable types, their construction, performance, test methods, marking, and packaging for aircraft interconnection use.

What does SIST EN 4532:2009 specify?

SIST EN 4532:2009 covers two cable types: Type A and Type B. Type A is a jacketed fibre for printed circuit board inter-connection inside equipment, while Type B is a single-core cable for general airframe and equipment inter-connection, suitable for all aircraft locations except power plant compartments.

The document is organized into clauses on scope, normative references, terms and definitions, description, cable characteristics, fibre characteristics, environmental conditions, production acceptance tests, additional test information, and marking and packaging requirements. That structure matters in practice because it shows where to find design details, test methods, and delivery requirements.

What are the key requirements of SIST EN 4532:2009?

SIST EN 4532:2009 sets requirements for both the fibre construction and the completed cable, then verifies them with routine, quality, and qualification tests. The most important points are below.

• Clause 4 - cable construction: Both types use a single, step-index, multimode, all silica fibre with primary coating; Type A is tight-buffer, all dielectric fibre, while Type B adds strength members and an outer sheath. In practice, this fixes the basic build that suppliers must reproduce.
• Clause 5 - cable performance: Type B has limits for ambient light pick-up, useful installed life, MTBF, sheath colour, and bend radius. This tells installers what can be routed safely and what has to stay within bend limits over the aircraft life.
• Clause 6 - fibre characteristics: The primary fibre uses pure silica core material with doped silica cladding, defined optical properties, UV absorption control, and coating geometry intended to support splicing and connector mounting. This is the part buyers and manufacturers use to check whether the fibre suits aircraft optical assemblies.
• Clause 7 - environmental conditions: The standard defines operating temperature, operating pressure, humidity, storage humidity, and nuclear radiation performance. In practice, these are the service conditions the cable has to survive in aircraft use.
• Clause 8 - tests and batch control: It separates production acceptance tests, production verification tests, and qualification approval tests, and it defines batch of fibre and batch of cable. After qualification, a Declaration of Design and Performance (DDP) is submitted to the approving authority.
• Clause 9 - test method control: The document requires controlled launch conditions for attenuation measurements, including full launch conditions and a defined test arrangement for low- and high-temperature tests. This matters because repeatable optical measurements depend on how light is injected into the fibre.
• Clause 10 - marking and packaging: The cable must be permanently identified on the sheath and supplied on reels with sealed ends, labels, ordering information, and storage provisions. This supports traceability, handling, and receiving inspection.

What terms does SIST EN 4532:2009 define?

• Batch of fibre - a continuous pull from a single identifiable preform.
• Batch of cable - all cable from one continuous extrusion and stranding operation on fibre from a single batch.
• Full launch conditions - a controlled optical launch that excites all modes for specified attenuation tests.
• MTBF - mean time between failure, used here to describe cable reliability over time.
• DDP - Declaration of Design and Performance, submitted after successful qualification.
• OTDR - an optical time-domain reflectometer printout referenced for packaged cable lengths of 500 m or greater.
• NA - numerical aperture, used to describe the fibre launch beam and fibre acceptance.

Who uses SIST EN 4532:2009?

SIST EN 4532:2009 is used by aerospace cable manufacturers, fibre suppliers, connector and assembly suppliers, test laboratories, and aircraft integrators. It is relevant to military aircraft programs and civil aircraft programs that need optical interconnection cables for equipment and airframe wiring routes. Quality teams and buyers use it to specify construction, verify test evidence, and check marking and packaging at delivery.

Which standards are used with SIST EN 4532:2009?

The document relies on these cited standards and what they contribute:

• EN 2591-306 - mould growth test.
• EN 2591-316 - ozone resistance test.
• EN 3733-001 - connector specification for matching cable buffer requirements.
• EN 3745-100 - general test-method rules for optical fibres and cables.
• ISO 1817 - liquid effects on rubber, used for fluid resistance tests.
• ISO 2574 - identification marking for aircraft electrical cables.
• IEC 60793-1-1 - general optical-fibre measurement guidance.
• IEC 60794-1-2 - generic optical-cable test procedures and launch guidance.
• IEC 60874-1 - optical-fibre connector reference for ambient light coupling testing.
• MIL-HDBK-454B - guidance on materials treated as inert in mould-growth testing.

What does the SIST EN 4532:2009 document contain?

SIST EN 4532:2009 contains construction drawings for Type A and Type B, plus tables for fibre dimensions, cable dimensions, environmental conditions, acceptance tests, verification tests, and qualification tests. It also includes the test arrangements and launch-condition guidance needed for optical attenuation measurements.

The document uses figures for the fibre and cable cross-sections and for the low/high-temperature test arrangement. Clause 8 and Clause 9 include procedures, conditions, and measurement set-ups for mechanical, thermal, humidity, fluid, flammability, smoke, toxicity, radiation, light-coupling, mould-growth, and ozone testing. Clause 10 provides the designation format, cable marking rules, packaging labels, delivery length rules, and storage reel requirements.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - LWL-Kabel, 200 µm/280 µm Faser, 2,5 mm Aussendurchmesser - Technische LieferbedingungenSérie aérospatiale - Câbles, optiques, fibre 200 µm/280 µm, diamètre extérieur 2,5 mm - Spécification techniqueAerospace series - Cables, optical, single core 200 µm/280 µm fibre, 2,5 mm outer jacket - Technical specification49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4532:2009SIST EN 4532:2009en01-maj-2009SIST EN 4532:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4532February 2009ICS 49.060 English VersionAerospace series - Cables, optical, single core 200 µm/280 µmfibre, 2,5 mm outer jacket - Technical specificationSérie aérospatiale - Câbles, optiques, fibre 200 µm/280µm, diamètre extérieur 2,5 mm - Spécification techniqueLuft- und Raumfahrt - LWL-Kabel, 200 µm/280 µm Faser,2,5 mm Aussendurchmesser - TechnischeLieferbedingungenThis European Standard was approved by CEN on 5 October 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4532:2009: ESIST EN 4532:2009

Type B, single core, is intended for general airframe and equipment inter-connection cable suitable for installation in all aircraft locations, with exception of power plant compartments. These cables are particularly suitable for use in military aircraft as well as for general civil aircraft applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591-306, Aerospace series — Elements of electrical and optical connection — Test methods — Part 306: Mould growth EN 2591-316, Aerospace series — Elements of electrical and optical connection — Test methods — Part 316: Ozone resistance EN 3733-001, Aerospace series — Connector, optical , circular, single channel, coupled by self-locking ring, operating temperature up to 150 °C continuous — Part 001: Technical specification 1) EN 3745-100*, Aerospace series — Fibres and cables, optical, aircraft use — Test methods — Part 100: General ISO 1817, Rubber, vulcanized — Determination of the effect of liquids ISO 2574, Aircraft — Electrical cables — Identification marking IEC 60793-1-1, Optical fibres — Part 1-1: Measurement methods and test procedures — General and guidance IEC 60794-1-2, Optical fibre cables — Part 1-2: Generic specification — Basic optical cable test procedures IEC 60874-1, Connectors for optical fibres and cables — Part 1: Generic specification MIL-HDBK-454B, General guidelines for electronic equipment
* And all applicable parts quoted. 1) Published as ASD Prestandard at the date of publication of this standard. SIST EN 4532:2009

Key 1 Buffer 2 Primary coating 3 Cladding 4 Core 5 Refractive index Figure 1 — Construction of type 'A' primary fibre
4.2 Construction of type 'B' single core cable The cable shall consist of a single, step-index, multimode, all silica fibre (pure silica core with sufficiently high OH content to meet nuclear radiation hardening requirements) and suitably doped silica cladding which is protected by a primary coating. The cable shall have a tight buffer, all dielectric (non-conducting) construction, with strength members and outer sheath, and have an operating temperature range of − 60 °C to 150 °C. The cable shall comprise an outer sheath, strength member, inner sheath, buffer, and fibre, which is protected by a primary coating. For a cable end view and side view drawing (3rd angle), see Figure 2. 1 2 3 4 5 SIST EN 4532:2009

Key 1 Outer sheath 2 Inner sheath 3 Primary coating 4 Core 5 Cladding 6 Buffer 7 Strength member Figure 2 — Construction of type 'B' cable 5 Cable characteristics 5.1 Optical performance of cable 5.1.1 Optical isolation of cable jacketing
The cable jacketing shall provide sufficient optical isolation so that any possible ambient light pick up is not more than 1 nW over a length characteristic for the installed fibre-optic network. 5.1.2 Useful installed lifetime
The useful installed lifetime shall be ≥ 25 years. 5.1.3 Mean time between failure (MTBF) Cable failure rate of 0,02/100 m over 25 years life. 5.2 Construction data of cable (Type B) 5.2.1 Sheath colour The sheath shall be coloured light violet. 5.2.2 Cable design Tight buffer, all dielectric construction with strength members suitable for single connectors. 1 2 3 4 5 6 7 SIST EN 4532:2009

Key 1 Primary coating 2 Fibre Figure 3 — Concentricity of primary coating 7 Environmental conditions 7.1 Temperature range The operating temperature shall be − 60 °C to 150 °C. 7.2 Operating pressure range The operating pressure range sh
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