EN 50377-7-4-2011 pdf download.Connector sets and interconnect components to be used in optical fibre
communication systems -Product specifications -Part 7-4: LC-PC simplex terminated on IEC 60793-2-50 category B1.1 and B1.3 singlemode fibre with full zirconia ferrule for category C.
This EN 50377-7-4 contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements which a connector terminated with cindrical zirconia PC ferrule and assembled singlemode resilient alignment sleeve LC-PC simplex connector set (plug / adaptor I plug) adaptor and patchcord must meet In order for It to be categorised as an EN standard product.
Since different variants and grades of performance are permitted, product marking details are given in 3.6,
1.2 Intermateability
Although all products conforming to the requirements of this standard will intermate, the resulting level of random attenuation performance will only be ensured in accordance with Table 1. The intention is that this will be true irrespective of the manufacturing source(s) of the product.
When intermating plug variants having different attenuation grades the resulting level of attenuation cannot be assured to be any better than the worst attenuation grade.
Therefore, the intermating of a Grade C plug with a Grade B plug will result in an uncertain level of random attenuation performance.
A simplex plug can be connected in a duplex adaptor without degrading the level of performance.
1.3 Operating environment
The tests selected combined with the seventies and durations are representative of an internal weather protected environment defined by EN 61753-1:2007, Category C.
1.4 Reliability
Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this European Standard does not guarantee the reliability of the product. This should be predicted using a recognised reliability assessment programme.
1.5 Quality assurance
Compliance with this European Standard does not guarantee the manufacturing consistency of the product.
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 60793-2-50 Optical fibres — Part 2-50: Product specifications — Sectional specification for class B single-mode fibres (IEC 60793-2-50)
EN 60874-1:2007 Connectors for optical fibres and cables – Part 1: Generic specification (IEC 60874-1:2006)
EN 61300 series Fibre optic interconnecting devices and passive components — Basic test and measurement procedures (IEC 61300 series)
EN 61300-2-1 Fibre optic interconnecting devices and passive components — Basic test and
measurement procedures — Part 2-1: Tests — Vibration (sinusoidal) (IEC 61300-2-1)
EN 61300-2-2 Part 2-2: Tests — Mating durability (IEC 61300-2-2)
EN 61300-2-4 Part 2-4: Tests — Fibre/cable retention (IEC 61300-2-4)
EN 61300-2-6 Part 2-6: Tests — Tensile strength of coupling mechanism (IEC 61300-2-6)
EN 61300-2-12:2009 Part 2-12: Tests — Impact (IEC 61300-2-12:2009)
EN 61 300-2-17 Part 2-17: Tests — Cold (IEC 61300-2-17)
EN 61300-2-18 Part 2-18: Tests — Dry heat — High temperature endurance (IEC 61300-2-18)
EN 61300-2-19 Part 2-19: Tests — Damp heat (steady state) (IEC 61300-2-19)
EN 61300-2-22 Part 2-22: Tests — Change of temperature (IEC 61300-2-22)
EN 61300-2-42 Part 2-42: Tests — Static side load for connectors (IEC 61300-2-42)
EN 61300-2-44 Part 2-44: Tests — Flexing of the strain relief of fibre optic devices (IEC 61300-2-44)
EN 61300-3-4 Part 3-4: Examinations and measurements — Attenuation (IEC 61300-3-4)
EN 61300-3-6:2009 Part 3-6: Examinations and measurements — Return loss (IEC 61300-3-6:2008)
EN 61300-3-10 Part 3-10: Examinations and measurements — Gauge retention force (IEC 61300-3-10)
EN 61300-3-15 Part 3-15: Examinations and measurements. Dome eccentricity of a convex polished ferrule endface (IEC 61300-3-15)
3.1 General
The LC-PC simplex connector is a single position plug connector set of plug adaptor plug configuration characterised by cylindrical, spring loaded butting ferrules of 1.25 mm nominal diameter and a latched push- pull coupling mechanism. The optical alignment mechanism of the connectors is of a resilient sleeve style.
3.2 Plug
The plug features a cylindrical zirconia ceramic ferrule and a latched push-pull mechanism. It has a single male key, which is used to limit and may be used to orientate the relative rotation between mated connectors.
A cover (dust cap) to protect the ferrule endface when the connector is in the unmated condition shall be provided.
Alternative materials may be used for the ferrule that have directly compatible material properties to zirconia but the endface and performance requirements must be met under all conditions
3.3 Adaptor
The adaptor has a zirconia ceramic resilient alignment sleeve. The mounting styles are simplex rectangular flange equipped with snap-latches, duplex square flange equipped with snap-latches, and a duplex rectangular flange with snap-latches with a panel cut out same as SC connector.
Covers (dust caps) shall be provided to protect each port of the adaptor.
Alternative materials may be used for the sleeve that has directly compatible material properties to zirconia
but the performance requirements must be met under all conditions
3.4 Materials
Materials which are not specified or which are not specifically described are left to the discretion of the manufacturer.
3.5 Dimensions
Outline dimensions and other dimensions necessary to ensure intermateability or which affect performance are specified. All other dimensions are left to the discretion of the manufacturer. Where the mating face limit dimensions are not in agreement with an IEC interface standard this is clearly stated.
3.6 Colour and marking.EN 50377-7-4-2011 pdf download.