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BS EN 50411-3-6:2013

$102.76

Fibre organisers and closures to be used in optical fibre communication systems. Product specifications – Multimode mechanical fibre splice for use in an outdoor protected environment (Cat U)

Published By Publication Date Number of Pages
BSI 2013 22
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1.1 Product definition

This European Standard contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements which a multimode mechanical splice will meet in order for it to be categorised as an EN standard product.

Since different variants and grades of performance are permitted, product marking and identification details are given in 3.5.

Although in this document the product is qualified for EN 60793-2-10 type A1a.1, A1a.2, A1a.3 and A1b multimode fibres, it may also be suitable for other fibre types.

1.2 Interoperability

The installed mechanical splice fits into a fibre management system with optical fibre splice cassettes or splice trays. This European Standard specifies the following two physical interface dimensions:

  • cross sectional profile with width, height or diameter (in millimetres);

  • length (in millimetres).

1.3 Expected performance

In this document, the performance of a mechanical splice is given with identical fibres only. Losses associated with fibre cladding diameter and mode field mismatch are not taken into account. The measured attenuation is a function of the core concentricity, cladding non-circularity and alignment capability.

The optical return loss performance is a function of the index matching gel and the fibre end face preparation.

1.4 Operating environment

The tests selected combined with the severities and durations are representative of an outdoor enclosed environment defined as category U in EN 61753-1. To ensure that the product can be used in closures, boxes or street cabinet for categories A, G and S (as defined EN 61753-1) the specified lower temperature is extended to -40 °C and requirements for temporary flooding have been added.

1.5 Reliability

Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this specification does not guarantee the reliability of the product. This should be predicted using a recognised reliability assessment programme.

1.6 Quality assurance

Compliance with this specification does not guarantee the manufacturing consistency of the product. This should be maintained using a recognised quality assurance programme.

PDF Catalog

PDF Pages PDF Title
7 1 Scope
1.1 Product definition
1.2 Interoperability
1.3 Expected performance
1.4 Operating environment
1.5 Reliability
1.6 Quality assurance
2 Normative references
8 3 Description
3.1 General
9 3.2 Mechanical splice
3.3 Materials
3.4 Dimensions
3.5 Colour and marking
10 4 Variants
5 Dimensional requirements
11 6 Tests
6.1 Introduction
6.2 Test sample preparation
6.3 Test and measurement methods
6.4 Pass/fail criteria
7 Test report
8 Performance requirements
8.1 Dimensional and marking requirements
8.2 Assembly yield requirement
12 8.3 Optical performance requirements
18 Annex A (normative) Fibre type
19 Annex B (normative) Sample size and product sourcing requirements
BS EN 50411-3-6:2013
$102.76