CEI EN 50377-7-4

Product definition

This European Standard contains the initial, start of life
dimensional, optical, mechanical and environmental performance
requirements which a connector terminated with cylindrical zirconia
PC ferrule and assembled singlemode resilient alignment sleeve
LC-PC simplex connector set (plug / adaptor / 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.

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.

Operating environment

The tests selected combined with the severities and durations
are representative of an internal weather protected environment
defined by EN 61753-1:2007, Category C.

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.

Quality assurance

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