BS EN 50411-3-8:2016 specifies the dimensional, optical, mechanical and environmental performance requirements of a Terminal Equipment Boxes for the FTTX networks. The Terminal Equipment Box will house the ONT/CPE (electronics) and it protects the optical fibres, splices and connectors from direct contact with the user. Optionally it can contain the network test interface, the power supply and the batteries.

The performance of the electronics, power supply or batteries are not part of this document. These are covered by another EN document, EN 50700.

This specification contains the initial, start of life optical, mechanical and environmental performance requirements of the optical fibre termination in a Terminal Equipment Box, in order for it to be categorized as an EN standard product.

1.2 Operating environment

The tests selected combined with the severity and duration is representative of indoor and outside plant for above ground environments defined by:

EN 61753-1 Category C Controlled environment

1.3 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.

1.4 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.

1.5 Allowed fibre types

All EN 60793-2-50 fibres can be stored in the Terminal Equipment Box with a minimum storage radius of 20 mm (up to a length of maximum 2 m).

Smaller storage radii down to 15 mm are possible with the EN 60793-2-50 B6_a fibre types, but in this case the reduction in mechanical reliability should be taken into account (see Annex A).


Cross References:
EN 50377
EN 50700
EN 60529
IEC 60529
EN 60695-11-10
IEC 60695-11-10
EN 60754-1
IEC 60754-1
EN 60793-2-50
IEC 60793-2-50
EN 60825-2
IEC 60825-2
EN 61034-2
IEC 61034-2
EN 61300-2-1
IEC 61300-2-1
EN 61300-2-4
IEC 61300-2-4
EN 61300-2-9
IEC 61300-2-9
EN 61300-2-12
IEC 61300-2-12
EN 61300-2-22
IEC 61300-2-22
EN 61300-2-33
IEC 61300-2-33
EN 61300-3-1
IEC 61300-3-1
EN 61300-3-3
IEC 61300-3-3
EN 61300-3-4
IEC 61300-3-4
EN 61300-3-28
IEC 61300-3-28
EN 50098
EN 50173
EN 50174
EN 50310
EN 50346
EN 50411-2
EN 60794-2
IEC 60794-2
EN 60794-2-50
IEC 60794-2-50
EN 61753-1
IEC 61753-1
EN 61756-1
IEC 61756-1
EN 61758-1
IEC 61758-1
IEC TR 62048
ETSI TS 102 873


All current amendments available at time of purchase are included with the purchase of this document.