What is BS EN 50411-2-4 - Fibre organisers and closures to be used in optical fibre communication systems about?
BS EN 50411 is a series on fibre organisers and closures to be used in optical fibre communication systems. Fibre organisers and closures are devices used to provide space and protection for fibre optic cables spliced together. BS EN 50411-2-4 contains the initial, start of life dimensional, optical, mechanical, and environmental performance requirements of a fully installed splice closure in order for it to be categorised as an EN standard product.
Who is BS EN 50411-2-4 - Fibre organisers and closures to be used in optical fibre communication systems for?
BS EN 50411-2-4 on fibre organisers and closures is useful for:
- Telecommunication component manufacturers
- Telecommunication equipment manufacturers
- Design engineers
- Quality control personnel
Why should you use BS EN 50411-2-4 - Fibre organisers and closures to be used in optical fibre communication systems?
Fibre organisers and closures connect and store optical fibres safely either in the outside plant or indoor buildings. An optical closure comprises a closure housing that is attached to the ends of the joined cable sheaths and a means for containing and protecting the fibres, splices, and other passive optical devices. This is not to be confused with an optical closure for blowing cable or fibre. This comprises an access housing that allows the interconnection of cable ducts or tubes and is attached to the ends of the ducts or cables containing empty tubes. However, BS EN 50411-2-4 is used when air blown fibres are spliced inside this type of closure.
The fibre management closure provides facilities for environmental protection, housing for fibre management systems and sealing of input and output optical cables. In order to comply with the standard, the optical functionality, and physical, geometrical, and mechanical requirements are defined. The design of the distribution and spur joint closure housing allows the joining together of at least one pair of cables that are not at the end of a cable section, without cutting all fibres between both cable openings. BS EN 50411-2-4 is generally known as a distribution joint or external node but is also called a mid-span closure or balloon splice. Using BS EN 50411-2-4 you can specify the initial, start of life dimensional, optical, mechanical, and environmental performance requirements of a fully installed splice closure.
What’s changed since the last update?
BS EN 50411-2-4:2012 supersedes BS EN 50411-2-4:2006. BS EN 50411-2-4:2012 includes some technical changes with respect to BS EN 50411-2-4:2006:
- The variant XX2 additional distribution closures with more cable entrance ports were defined (new versions D2, D3 and D4 were added)
