Fiber optic drop cable slack storage receptacle

• US 20050145522A1
• Filed: 12/24/2003
• Published: 07/07/2005
• Est. Priority Date: 12/24/2003
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Vo, Chanh C., Reagan, Jason B., Luther, James P., Staber, Harley J., Cooke, Terry L., Klavuhn, Tory A., Napiorkowski, John J., Keenum, John A., Grunwald, Brad N., Bloodworth, Stephen G., Tenholder, Rodger A.
• Granted Patent: US 7,346,253 B2
• Time in Patent Office: Days
• US Class Current: 206/409
• CPC Class Codes: G02B 6/4453 Cassettes
• CPC Class Codes: G02B 6/4457 Bobbins; Reels
• CPC Class Codes: G02B 6/475 Mechanical aspects of installing cables in ducts or the like for buildings

Abstract

A slack storage receptacle for storing an excess length of a pre-connectorized fiber optic drop cable extending between an optical connection terminal and a network interface device (NID) includes a housing and a storage means disposed within the housing for receiving the drop cable such that the drop cable slack is stored external to the NID. The slack storage receptacle may be secured to an exterior wall of a subscriber premises and the NID mounted thereon. Alternatively, the slack storage receptacle may be positioned around and formed to the NID. Alternatively, the slack storage receptacle may be buried in the ground adjacent the NID. The drop cable slack may be wound onto the storage means after deployment. Alternatively, the slack storage receptacle may be pre-assembled, shipped to the subscriber premises, and the drop cable unwound from the storage means with the drop cable slack remaining wound on the storage means.

Claims

1. A slack storage receptacle for storing an excess length of a pre-connectorized fiber optic drop cable extending between an optical connection terminal and a network interface device (NID), the slack storage receptacle comprising:

a housing defining an interior cavity adapted to receive one or more coils of the excess length of the fiber optic drop cable;

wherein the excess length of the fiber optic drop cable is stored external to the NID.

2. A slack storage receptacle according to claim 1, wherein the housing further comprises a storage means.

3. A slack storage receptacle according to claim 2, wherein the storage means comprises a drawer adapted to cooperate in sliding engagement with the housing for movement between an opened configuration and a closed configuration.

4. A slack storage receptacle according to claim 3, wherein the drawer comprises a rear panel and a plurality of walls extending outwardly from the rear panel and wherein the coils of the excess length of the fiber optic drop cable are biased outwardly against the walls of the drawer.

5. A slack storage receptacle according to claim 4, wherein at least one of the walls comprises an inwardly extending retaining flange for retaining the coils of the excess length of the fiber optic drop cable within the drawer.

6. A slack storage receptacle according to claim 3, wherein the housing comprises a pair of locking pins and the drawer has a plurality of openings therethrough that cooperate with the locking pins in the closed configuration and the opened configuration such that one of the openings is coincident with one of the locking pins in each of the closed configuration and the opened configuration.

7. A slack storage receptacle according to claim 6, wherein the drawer comprises a top wall that is provided with angled guiding tabs at the opposed ends thereof for permitting the drawer to travel past a corresponding one of the locking pins while being moved from the opened configuration to the closed configuration.

8. A slack storage receptacle according to claim 7

wherein the plurality of openings comprise a pair of openings located adjacent one end of the top wall and a single opening located adjacent the opposed end of the top wall;

wherein the pair of locking pins comprises a first locking pin for engaging one of the pair of openings in the closed configuration and the single opening in the opened configuration when the drawer is slid in a first direction relative to the housing and a second locking pin for engaging the other one of the pair of openings in the opened configuration when the drawer is slid in a second direction opposite the first direction relative to the housing; and

wherein only one of the locking pins engages one of the openings in the closed configuration and the opened configuration.

9. A slack storage receptacle according to claim 2, wherein the housing comprises at least one cable entrance and exit opening and wherein the storage means comprises an inner hub and an outer hub spaced radially outwardly from the inner hub to form a cable channel in communication with the cable entrance and exit opening for receiving the coils of the excess length of the fiber optic drop cable within the housing.

10. A slack storage receptacle according to claim 2, wherein the housing further comprises a mounting feature including a hanger for hingedly affixing the NID to the housing such that the NID can be rotated upwardly relative to the housing to expose the excess length of the fiber optic drop cable stored within the slack storage receptacle.

11. A slack storage receptacle according to claim 2, wherein the storage means comprises a continuous side wall having at least one cable transition opening therethrough and a plurality of circumferentially spaced apart retaining flanges affixed to the side wall and extending radially inwardly therefrom such that the side wall and the retaining flanges form an annular cable channel for receiving the coils of the excess length of the fiber optic drop cable.

12. A slack storage receptacle according to claim 11, further comprises a top cover and a bottom cover, each of the top cover and the bottom cover comprising a front wall defining a cutaway portion centrally disposed in the front wall that is shaped to conform to the outer contour of the NID such that the top cover and the bottom cover are adapted to cooperate with each other to conform to the contour of the outer periphery of the NID when the top cover and the bottom cover are positioned over the housing and secured together.

13. A slack storage receptacle according to claim 11 wherein the housing further comprises a rear panel affixed to the side wall for mounting the slack storage receptacle on an exterior wall of a subscriber premises.

14. A slack storage receptacle according to claim 2, wherein the storage means comprises a hub affixed to the housing and a reel for receiving the coils of the excess length of the fiber optic drop cable thereon and wherein the reel is mounted on the hub such that the reel rotates freely relative to the hub.

15. A slack storage receptacle according to claim 14, wherein the reel comprises

an inner wall adjacent the hub and an outer wall spaced radially outwardly from the inner wall that defines a generally cylindrical surface for receiving the coils of the excess length of the fiber optic drop cable thereon;

and

a pair of spaced apart outer flanges for retaining the fiber optic drop cable on the outer wall of the reel.

16. A slack storage receptacle according to claim 15, wherein the reel further comprises a bend radius guide disposed on the outer wall and extending radially outwardly therefrom, the bend radius guide having a radius of curvature that is greater than the minimum bend radius of the fiber optic drop cable for reversing the direction in which the fiber optic drop cable is wound onto the reel.

17. A slack storage receptacle according to claim 16, wherein each end of the fiber optic drop cable has a connectorized end and wherein the fiber optic drop cable may be paid off the reel by pulling the connectorized ends in the same direction and at the same time.

18. A slack storage receptacle according to claim 15, wherein the reel further comprises an inner flange positioned on the outer wall and disposed medially between the outer flanges, the inner flange having a radially inwardly extending slot therethrough for transitioning the fiber optic drop cable from a lower portion of the reel to an upper portion of the reel.

19. A slack storage receptacle according to claim 18, wherein the inner flange is disposed nearer to an upper one of the outer flanges and wherein the slot separates a substantially longer length of the fiber optic drop cable to be wound onto the lower portion of the reel and a shorter length of the fiber optic drop cable wound onto the upper portion of the reel in the same direction.

20. A slack storage receptacle according to claim 19 wherein each end of the fiber optic drop cable has a connectorized end and wherein the fiber optic drop cable must be paid off the reel by pulling one of the connectorized ends in a first direction and by unwinding the other of the connectorized ends by hand in a second direction opposite the first direction.

21. A slack storage receptacle according to claim 1, wherein the housing is secured on an exterior wall of a subscriber premises between the exterior wall and the NID and wherein the NID is mounted on the housing.

22. A slack storage receptacle according to claim 1, wherein the housing is secured on an exterior wall of a subscriber premises between the exterior wall and the NID and wherein the NID is hingedly affixed to the slack storage receptacle and adapted to rotate upwardly relative to the housing.

23. A slack storage receptacle according to claim 1, wherein the NID is secured on an exterior wall of a subscriber premises and wherein the slack storage receptacle is positioned around the NID and adapted to conform to the outer periphery of the NID.

24. A slack storage receptacle according to claim 1, wherein the NID is secured on an exterior wall of a subscriber premises and wherein the slack storage receptacle is buried under the ground.

30. A slack storage receptacle according to claim 1, further comprising a drip loop extending between the housing and the NID and a shield covering the drip loop.

25. A slack storage receptacle for storing an excess length of a pre-connectorized fiber optic drop cable comprising:

a housing defining an interior cavity and comprising a storage means disposed within the interior cavity for receiving at least a portion of the fiber optic drop cable external to an outside plant optical connection terminal and a network interface device (NID).

26. A slack storage receptacle according to claim 25, wherein the housing is secured to an exterior wall of a subscriber premises between the exterior wall and the NID and wherein the NID is mounted on the housing.

27. A slack storage receptacle according to claim 25, wherein the housing is secured on an exterior wall of a subscriber premises between the exterior wall and the NID and wherein the NID is hingedly affixed to the slack storage receptacle and adapted to rotate upwardly relative to the housing.

28. A slack storage receptacle according to claim 25, wherein the NID is secured on an exterior wall of a subscriber premises and wherein the slack storage receptacle is positioned around the NID and adapted to conform to the outer periphery of the NID.

29. A slack storage receptacle according to claim 25, wherein the NID is secured to an exterior wall of a subscriber premises and wherein the slack storage device is buried under the ground.

31. A method of deploying a pre-connectorized fiber optic drop cable between an outside plant optical connection terminal and a network interface device (NID), the method comprising:

providing a slack storage receptacle comprising a housing defining an interior cavity and including a storage means disposed within the interior cavity for receiving an excess length of the fiber optic drop cable;

connecting one end of the fiber optic drop cable to the connection terminal;

connecting the other end of the fiber optic drop cable to the NID; and

storing the excess length of the fiber optic drop cable on the storage means of the slack storage receptacle external to the NID.

32. A method according to claim 31, further comprising securing the housing on an exterior wall of a subscriber premises between the exterior wall and the NID and mounting the NID on the housing.

33. A method according to claim 31, further comprising securing the housing on an exterior wall of a subscriber premises between the exterior wall and the NID and hingedly affixing the NID to the slack storage receptacle such that the NID is adapted to rotate upwardly relative to the housing.

34. A method according to claim 31, wherein the slack storage receptacle is adapted to conform to the outer periphery of the NID and further comprising securing the NID on an exterior wall of a subscriber premises and positioning the slack storage receptacle around the NID.

35. A method according to claim 31, further comprising securing the NID on an exterior wall of a subscriber premises and burying the slack storage receptacle under the ground.

36. A method according to claim 31, wherein the storage means comprises a hub affixed to the housing and a reel rotatably mounted on the hub and further comprising:

pre-assembling the slack storage receptacle with the fiber optic drop cable wound on the reel;

shipping the slack storage receptacle including the fiber optic drop cable wound on the reel;

positioning the slack storage receptacle at a location about midway between the connection terminal and the NID; and

paying off the fiber optic drop cable to the connection terminal and the NID by pulling the connectorized ends of the fiber optic drop cable in the same direction and at the same time to unwind the fiber optic drop cable from the reel.

37. A method according to claim 31, wherein the storage means comprises a hub affixed to the housing and a reel rotatably mounted on the hub and further comprising:

pre-assembling the slack storage receptacle with the fiber optic drop cable wound on the reel;

shipping the slack storage receptacle including the fiber optic drop cable wound on the reel;

positioning the slack storage receptacle at a location between the connection terminal and the NID adjacent the NID; and

paying off the fiber optic drop cable to the connection terminal and the NID by pulling one of the connectorized ends of the fiber optic drop cable in the direction of the connection terminal to unwind the fiber optic drop cable from the reel and by unwinding the other connectorized end of the fiber optic drop cable off the reel by hand in the direction of the NID.