Fiber optic local convergence points for multiple dwelling units

• US 7,409,138 B1
• Filed: 03/12/2007
• Issued: 08/05/2008
• Est. Priority Date: 03/12/2007
• Status: Expired due to Fees

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: McGranahan, Danny, Jay, Raymond Glenn, Frazier, Brent Michael
• Primary Examiner(s): Bovernick; Rodney
• Assistant Examiner(s): STAHL, MICHAEL J
• Application Number:
  US11/716,824
• Time in Patent Office: 512 Days
• Field of Search: None
• US Class Current: 385/135
• CPC Class Codes: G02B 6/445 with lateral pivoting cover
• CPC Class Codes: G02B 6/4454 with splices

Abstract

There are provided fiber optic local convergence points (“LCPs”) adapted for use with multiple dwelling units (“MDUs”) that facilitate relatively easy installation and/or optical connectivity to a relatively large number of subscribers. The LCP includes a housing comprising an access cover for separating the subscriber portion from the provider portions. A splitter module of the LCP may be joined to the interior side of the access cover or may be joined to the housing opposite the access cover. The LCP may also include a splice tray assembly and/or an input receptacle to facilitate convenient installation of the provider cable. The LCP further comprises a plurality of receptacles for selective optical connection of a plurality of subscriber drop fibers/cables.

Claims

1. A fiber optic local convergence point (“

LCP”

), wherein the LCP is adapted to optically connect at least one input optical fiber to a plurality of output optical fibers, the LCP comprising;

a cover;

a housing comprising an interior cavity defined by a back wall and a plurality of sides and by the cover that is selectively moveable relative to the housing from an opened position to a closed position to thereby provide access to the interior cavity when the cover is in the opened position, wherein the housing comprises at least one opening through the housing for the passage of the input optical fibers and the plurality of output optical fibers;

an access cover joined to the housing and generally positioned within the interior cavity of the housing when the cover is in the closed position, wherein the access cover is selectively moveable relative to the housing from an opened position to a closed position to thereby provide access to a provider portion when the access cover is in the opened position and wherein the access cover defines an interior surface facing the back wall of the housing when the access cover defines the closed position;

a plurality of receptacles adapted to selectively receive fiber optic connectors that are optically connected to the output optical fibers; and

a splitter module that optically connects the input optical fiber with the plurality of receptacles, wherein the splitter module is joined to the interior surface of the access cover.

2. An LCP according to claim 1 further comprising a splice tray assembly to optically connect the input optical fiber to the splitter module.

3. An LCP according to claim 2 further comprising an splice tray adapter adapted to optically connect a pigtail from the splice tray assembly to the splitter module.

4. An LCP according to claim 1 further comprising an input adapter adapted to receive a preconnectorized end of the input optical fiber to optically connect the input optical fiber to the splitter module.

5. An LCP according to claim 1, wherein the splitter module comprises splitter outputs optically connected to the plurality of receptacles, wherein the number of splitter outputs is at least one of four, eight, sixteen, twenty-four, and thirty-two.

6. An LCP according to claim 1, wherein the splitter module is joined to the interior surface of the access cover with at least one bracket.

7. An LCP according to claim 1, wherein the splitter module is selectively joined to the interior surface of the access cover.

8. An LCP according to claim 1, wherein the splitter module is joined to the interior surface of the access cover with one or more fasteners.

9. An LCP according to claim 1 further comprising routing guides to generally route splitter outputs about the perimeter of the interior cavity from the splitter module to the plurality of receptacles.

10. A fiber optic local convergence point (“

LCP”

), wherein the LCP is adapted to optically connect at least one input optical fiber to a plurality of output optical fibers, the LCP comprising;

a cover;

a housing comprising an interior cavity defined by a back wall and a plurality of sides and by the cover that is selectively moveable relative to the housing from an opened position to a closed position to thereby provide access to the interior cavity when the cover is in the opened position, wherein the housing comprises at least one opening through the housing for the passage of the input optical fibers and the plurality of output optical fibers;

an access cover joined to the housing and generally positioned within the interior cavity of the housing when the cover is in the closed position, wherein the access cover is selectively moveable relative to the housing from an opened position to a closed position to thereby provide access to a provider portion when the access cover is in the opened position and wherein the access cover defines an interior surface facing the back wall of the housing when the access cover defines the closed position;

a plurality of receptacles adapted to selectively receive fiber optic connectors that are optically connected to the output optical fibers; and

a splitter module that optically connects the input optical fibers with the plurality of receptacles, wherein the splitter module is joined to the back wall of the housing.

11. An LCP according to claim 10 further comprising a splice tray assembly to optically connect the input optical fiber to the splitter module.

12. An LCP according to claim 11 further comprising a splice tray adapter adapted to optically connect a pigtail from the splice tray assembly to the splitter module.

13. An LCP according to claim 10 further comprising an input adapter adapted to receive a preconnectorized end of the input optical fiber to optically connect the input optical fiber to the splitter module.

14. An LCP according to claim 13 further comprising routing guides to generally route splitter outputs about the perimeter of the interior cavity from the splitter module to the plurality of receptacles.