Low cost hardened fiber optic connection system
The present disclosure relates to a ruggedized/hardened fiber optic connection system designed to reduce cost. In one example, selected features of a fiber optic adapter are integrated with a wall ( 24 ) of an enclosure ( 22 ). The adapter comprises a sleeve port ( 26 ) into which an optical adapter subassembly is inserted. The subassembly comprises a sleeve part ( 44 ) which is inserted into the sleeve, a ferrule alignment sleeve ( 48 ) which is inserted into the sleeve part, a ferrule ( 55 ) with hub which is inserted into the alignment sleeve, and fixing clip ( 46 ) securing the ferrule with hub into the alignment sleeve and the sleeve part.
1. A telecommunications device comprising:
an enclosure housing defining an interior volume of the enclosure and including:
a housing piece;
an enclosure wall mounted to the housing piece;
an environmental seal positioned between the housing piece and the enclosure wall, the environmental seal providing an environmentally sealed interface between the housing piece and the enclosure wall; and
a plurality of sleeves unitarily integrated with the enclosure wall, the sleeves including outer sleeve portions that project outwardly from the enclosure wall and inner sleeve portions that project inwardly from the enclosure wall into the interior volume, the sleeves defining connector ports that extend through the enclosure wall, the sleeves including connector fastening structures adjacent outer ends of the sleeves, the connector fastening structures including threads defined within the outer sleeve portions and configured to mate with corresponding threads of hardened connectors to secure the hardened connectors within the connector ports.
2. The telecommunications device of claim 1 , including four of the sleeves.
3. The telecommunications device of claim 2 , wherein the sleeves are aligned in a single row.
4. The telecommunications device of claim 3 , further comprising an input cable receiver projecting outwardly from the enclosure wall, the input cable receiver being positioned offset from the single row of the sleeves.
5. The telecommunications device of claim 1 , including the hardened connectors, wherein the hardened connectors are secured within the connector ports.
6. The telecommunications device of claim 5 , further comprising subassemblies partially positioned within the interior volume and interfaced with the hardened connectors in the connector ports.
7. The telecommunications device of claim 6 , wherein the subassemblies include ferrule alignment sleeves and ferrules received within the ferrule alignment sleeves, the ferrules supporting optical fibers that are optically connected to optical fibers terminated by the hardened connectors.
8. The telecommunications device of claim 7 , wherein the subassemblies do not include springs for allowing spring biased movement of the ferrules.
9. The telecommunications device of claim 1 , wherein the environmental seal is a gasket.
10. The telecommunications device of claim 9 , wherein the gasket is positioned in a groove defined by the enclosure wall.
11. The telecommunications device of claim 1 , further comprising an input cable receiver projecting outwardly from the enclosure wall.
12. The telecommunications device of claim 11 , further comprising an input cable positioned within the input cable receiver.
13. The telecommunications device of claim 1 , wherein the enclosure wall defines a recessed surface, and wherein the outer sleeve portions project outwardly from the recessed surface.
14. The telecommunications device of claim 1 , wherein the inner sleeve portions define axial channels at interior surfaces of the inner sleeve portions.
15. The telecommunications device of claim 1 , wherein outer surfaces of the outer sleeve portions are cylindrical.
16. The telecommunications device of claim 1 , wherein outer surfaces of the inner sleeve portions are cylindrical.
17. The telecommunications device of claim 1 , wherein the housing piece is a dome.