Variably configurable and modular local convergence point

• US 8,879,882 B2
• Filed: 04/26/2011
• Issued: 11/04/2014
• Est. Priority Date: 10/27/2008
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Conner, Mark Edward, Giraud, William Julius McPhil, Nored, Lee Wayne, Schnick, Gary Bruce
• Primary Examiner(s): Le, Uyen Chau N
• Assistant Examiner(s): Smith, Chad
• Application Number:
  US13/094,572
• Publication Number:
  US 20110211799A1
• Time in Patent Office: 1,288 Days
• Field of Search: None
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4452 Distribution frames
• CPC Class Codes: G02B 6/4454 with splices
• CPC Class Codes: G02B 6/4471 Terminating devices demountable connectors G02B6/3807; Cable clamps
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A variably configurable fiber optic terminal as a local convergence point in a fiber optic network is disclosed. The fiber optic terminal has an enclosure having a base and a cover which define an interior space. A feeder cable having at least one optical fiber and a distribution cable having at least one optical fiber are received into the interior space through a feeder cable port and a distribution cable port, respectively. A movable chassis positions in the interior space and is movable between a first position, a second position and third position. The movable chassis has a splitter holder area, a cassette area and a parking area. A cassette movably positions in the cassette area. A splitter module holder having a splitter module movably positioned therein movably positions in the splitter holder area. The optical fiber of the feeder cable and the optical fiber of the distribution cable are optically connected through the cassette, which also may be through the splitter module. In such case, the optical fiber of the feeder cable optically connects to an input optical fiber to the slitter module, where the optical signal is split into a plurality of output optical fibers. One of the plurality of output optical fibers connects to the optical fiber of the distribution cable for distribution towards a subscriber premises. The interior space is variably configurable by changeably positioning the cassette and splitter modules in the movable chassis.

Claims

1. A fiber optic terminal, comprising:

an enclosure having a base and a cover defining an interior space, a feeder cable port for receiving into the interior space a feeder cable having at least one optical fiber, and a distribution cable port for receiving into the interior space a distribution cable having at least one optical fiber, wherein the base and the cover are hingedly connected so that the enclosure may be opened or closed by rotating one or more of the base and the cover to allow access to the interior space;

a movable chassis hingedly connected to the base and the cover, wherein the movable chassis automatically extends out from the base when the enclosure is opened by rotating one or more of the base and the cover;

at least one splitter module holder positioned in the interior space; and

at least one cassette movably positioned in the interior space,

wherein the at least one optical fiber of the feeder cable and the at least one optical fiber of the distribution cable are optically connected through the at least one cassette, and

wherein the interior space is variably configurable by changeably positioning at least one of the at least one splitter module holder and the at least one cassette in the interior space wherein the movable chassis comprises a splitter holder area, and a cassette area, wherein the at least one splitter module holder movably positions in the splitter holder area and wherein the at least one cassette movably positions in the cassette area.

2. The fiber optic terminal of claim 1, further comprising:

at least one splitter module movably positioned in the splitter module holder, wherein the at least one splitter module has an input optical fiber and a plurality of output optical fibers, and wherein the at least one optical fiber of the feeder cable optically connects to the input optical fiber, and wherein the at least one optical fiber of the distribution cable optically connects to one of the plurality of output fibers, and wherein the interior space is variably configurable by changeably positioning at least one of the at least one splitter module.

3. The fiber optic terminal of claim 1, wherein the movable chassis comprises a parking area, and further comprising a plurality of connector holders positioned in the parking area, wherein at least one of the plurality of output fibers routes to one of the plurality of connector holders in the parking area.

4. The fiber optic terminal of claim 1, wherein the movable chassis is movable between a first stop position, a second stop position, and a third stop position.

5. The fiber optic terminal of claim 4, wherein the first stop position comprises the movable chassis positioned in the base adjacent to a back of the base when the enclosure is closed.

6. The fiber optic terminal of claim 4, wherein the second stop position comprises the movable chassis partially extended from the base and tilted away from the cover.

7. The fiber optic terminal of claim 6, further comprising a double hinge assembly between the movable chassis and the cover, wherein the double hinge assembly allows the movable chassis to locate in multiple stop positions with respect to the base and the cover.

8. The fiber optic terminal of claim 4, wherein the third stop position comprises the movable chassis positioned in the cover when the enclosure is open.

9. The fiber optic terminal of claim 1, further comprising a protective shield movably attached to the movable chassis, and movable between a covered position and a raised position, and wherein the protective shield in the covered position covers at least a portion of the movable chassis including a portion of the at least one of the splitter module holder, the at least one cassette, and a parking area.

10. The fiber optic network apparatus of claim 9, wherein the protective shield is movable from the covered position to the raised position when the enclosure is open, and wherein the protective shield moves independently of movement of the movable chassis.

11. The fiber optic terminal of claims 1, further comprising a fiber management area in the interior space adjacent to the base, wherein at least one of the optical fibers of the feeder cable and the optical fibers of the distribution cable are routed and stored.

12. The fiber optic terminal of claim 11, wherein the fiber management area is accessible when the movable chassis is in a third stop position between a first stop position and a second stop position.

13. The fiber optic terminal of claim 1, wherein the at least one cassette is a feeder cassette, and wherein the optical fiber of the feeder cable optically connects to the feeder cassette.

14. The fiber optic terminal of claim 1, wherein the at least one cassette is a distribution cassette, and wherein the optical fiber of the distribution cable optically connects to the distribution cassettes.

15. The fiber optic terminal of claim 1, wherein the at least one cassette comprises at least one of a feeder cassette and a distribution cassette, and wherein the distribution cassette and the feeder cassette are interchangeable.

16. The fiber optic terminal of claim 1, wherein the at least one cassette comprises a front section and a rear section separated by a front wall, and wherein fiber optic adapters mount in the front wall and extend between the rear section and the front section, and wherein the front section has a pivotable frame assembly that pivots between a first stop position and a second stop position, and wherein the second stop position expands access to the fiber optic adapters.

17. The fiber optic terminal of claim 1, wherein at least one optical component releasably mounts in the at least one cassette.

18. The fiber optic terminal of claims 17, wherein the at least one optical component comprises at least one of a splitter tray, a wave division multiplexer, a multi-fiber connector adapter, and a buffer tube slack storage.

19. The fiber optic terminal of claim 1, wherein the enclosure mounts to a strand using a strand attachment assembly, wherein the strand is strung between two supports in an elevated orientation.

20. The fiber optic terminal of claim 19, wherein the strand attachment comprises a handle, and wherein the fiber optic terminal may be lifted by the handle.

21. The fiber optic terminal of claim 1, wherein the enclosure mounts to a dog-house support at a top of the dog-house support using a support assembly, wherein the support assembly is configured to incline the fiber optic terminal a certain degree as measured from a plane of the top of the dog-house support.

22. The fiber optic terminal of claim 21, wherein the certain degree is in the range from about 0-70 degrees.

23. The fiber optic terminal of claim 1, wherein the enclosure mounts to a pedestal, and a pedestal cover is adapted to cover the enclosure.

24. The fiber optic terminal of claim 1, wherein the movable chassis comprises a plurality of rail guides arranged in pairs of opposing rail guides.

25. The fiber optic terminal of claim 24, wherein the at least one cassette comprises rails that engage the rail guides when the at least one cassette movably positions in the movable chassis.

26. The fiber optic terminal of claim 24, wherein the at least one splitter module comprises rails that engage the rail guides when the at least one splitter module movably positions in the movable chassis.

27. A fiber optic terminal, comprising:

an enclosure having a base and a cover defining an interior space; and

a movable chassis positioned in the interior space, wherein the movable chassis automatically extends out from the base when the cover is opened, and wherein the movable chassis is movable between a first stop position, a second stop position, and a third stop position, and wherein the interior space is variably configurable by changeably positioning at least one feeder cassette and at least one distribution cassette in the movable chassis wherein the second stop position comprises the movable chassis partially extended from the base and tilted away from the cover, and wherein the movable chassis automatically moves from the first stop position to the second stop position when the enclosure is opened.

28. The fiber optic terminal of claim 27, wherein the first stop position comprises the movable chassis positioned in the base adjacent to a back of the base when the enclosure is closed.

29. The fiber optic terminal of claim 27, further comprising a double hinge assembly between the movable chassis and the cover.

30. The fiber optic terminal of claim 27, wherein the third stop position comprises the movable chassis positioned in the cover when the enclosure is open.

31. A method for distributing optical signals from a service provider to a subscriber, comprising the steps of:

providing an enclosure having a base and a cover defining an interior space, a feeder cable port for receiving into the interior space a feeder cable having at least one optical fiber, and a distribution cable port for receiving into the interior space a distribution cable having at least one optical fiber, wherein the base and the cover are hingedly connected so that the enclosure may be opened or closed by rotating one or more of the base and the cover to allow access to the interior space;

positioning a movable chassis in the interior space, wherein the movable chassis comprises a cassette area, and wherein the movable chassis automatically extends out from the base between a first stop position, a second stop position, and a third stop position when the enclosure is opened by rotating one or more of the base and the cover;

movably positioning at least one cassette in the cassette area, and, wherein the at least one optical fiber of the feeder cable and the at least one optical fiber of the distribution cable are optically connected through the at least one cassette, and

wherein the interior space is variably configurable by changeably positioning the at least one feeder cassette and the at least one distribution cassette in the movable chassis.

32. The method of claim 31, wherein the movable chassis comprises a splitter holder area, and further comprising:

movably positioning at least one splitter module holder in the splitter holder area; and

movably positioning at least one splitter module in the splitter module holder, wherein the at least one splitter module has an input optical fiber and a plurality of output optical fibers, and wherein the at least one optical fiber of the feeder cable optically connects to the input optical fiber, and wherein the at least one optical fiber of the distribution cable optically connects to one of the plurality of output fibers, and wherein the interior space is variably configurable by changeably positioning at least one of the at least one splitter module.