Aerial fiber optic system including a sub-distribution system and related methods

• US 6,819,842 B1
• Filed: 08/14/2003
• Issued: 11/16/2004
• Est. Priority Date: 08/14/2003
• Status: Expired due to Fees

• Current Assignee: CommScope Inc. (CommScope Holding Company, Inc.)
• Original Assignee: Commscope Solutions Properties LLC (CommScope Holding Company, Inc.)
• Inventors: Alrutz, Mark E., Vogel, Mark O., Gemme, Christopher P., Lee, Martin B.
• Primary Examiner(s): Prasad, Chandrika
• Application Number:
  US10/640,813
• Time in Patent Office: 460 Days
• Field of Search: 385/100, 385/135, 385/139, 385/147, 439/502
• US Class Current: 385/100
• CPC Class Codes: G02B 6/483 Installation of aerial type

Abstract

An aerial fiber optic cable system includes a distribution cable extending along an aerial route, a splice enclosure connected to the distribution cable along the aerial route, and a first sub-distribution fiber optic system extending along the aerial route in a first direction away from the fiber optic splice enclosure. The first sub-distribution system may include spaced apart fiber optic taps along the aerial route, a first sub-distribution fiber optic cable between the fiber optic splice enclosure and a first fiber optic tap, and at least one second sub-distribution fiber optic cable between adjacent fiber optic taps so that the first sub-distribution fiber optic cable and the at least one second sub-distribution fiber optic cable are arranged in end-to-end relation. The system may also or alternately include a similar lateral sub-distribution system.

Claims

1. An aerial fiber optic cable system comprising:

a distribution fiber optic cable extending along an aerial route;

at least one fiber optic splice enclosure connected to said distribution fiber optic cable along the aerial route; and

a first sub-distribution fiber optic system extending along the aerial route in a first direction away from said at least one fiber optic splice enclosure and comprising

a plurality of spaced apart fiber optic taps along the aerial route,

a first sub-distribution fiber optic cable extending along the aerial route between said at least one fiber optic splice enclosure and a first one of said plurality of fiber optic taps,

at least one second sub-distribution fiber optic cable extending along the aerial route between adjacent fiber optic taps so that said first sub-distribution fiber optic cable and said at least one second sub-distribution fiber optic cable are arranged in end-to-end relation, and

at least one drop fiber optic cable extending away from the aerial route at at least one of said fiber optic taps.

2. An aerial fiber optic cable system according to claim 1 wherein each of said sub-distribution fiber optic cables comprises a desired length of cable and a fiber optic cable connector on at least one end thereof.

3. An aerial fiber optic cable system according to claim 2 wherein each fiber optic cable connector comprises a factory installed fiber optic cable connector.

4. An aerial fiber optic cable system according to claim 1 wherein each of said fiber optic taps comprises:

a tap housing;

an input fiber optic connector carried by said tap housing for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector carried by said tap housing for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors carried by said tap housing for coupling to respective drop fiber optic cables.

5. An aerial fiber optic cable system according to claim 4 wherein each of said fiber optic taps further comprises a fiber optic splitter carried by said tap housing.

6. An aerial fiber optic cable system according to claim 1 further comprising a second sub-distribution fiber optic system extending along the aerial route in a second direction opposite the first direction.

7. An aerial fiber optic cable system according to claim 1 further comprising a plurality of spaced apart vertical support structures defining the aerial route and carrying said distribution fiber optic cable and said first sub-distribution fiber optic system.

8. An aerial fiber optic cable system according to claim 1 further comprising a respective optical network unit connected to each drop fiber optic cable.

9. An aerial fiber optic cable system comprising:

a distribution fiber optic cable extending along an aerial route;

at least one fiber optic splice enclosure connected to said distribution fiber optic cable along the aerial route; and

a first sub-distribution fiber optic system extending along the aerial route in a first direction away from said at least one fiber optic splice enclosure and comprising

a plurality of spaced apart fiber optic taps along the aerial route, each tap comprising a tap housing and a plurality of tap fiber optic connectors carried thereby,

a first sub-distribution fiber optic cable extending along the aerial route between said at least one fiber optic splice enclosure and a first one of said fiber optic taps, and

at least one second sub-distribution fiber optic cable extending along the aerial route between adjacent fiber optic taps so that said first sub-distribution fiber optic cable and said at least one second sub-distribution fiber optic cable are arranged in end-to-end relation,

said first sub-distribution fiber optic cable and said at least one second sub-distribution fiber optic cable each comprising a pre-connectorized fiber optic cable.

10. An aerial fiber optic cable system according to claim 9 wherein said first sub-distribution fiber optic system further comprises at least one drop fiber optic cable extending away from the aerial route at at least one of said fiber optic taps.

11. An aerial fiber optic cable system according to claim 10 wherein each of said plurality of fiber optic taps comprises:

an input fiber optic connector for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors for coupling to respective drop fiber optic cables.

12. An aerial fiber optic cable system according to claim 11 wherein each of said fiber optic taps further comprises a splitter carried by said tap housing.

13. An aerial fiber optic cable system according to claim 9 further comprising a second sub-distribution fiber optic system extending along the aerial route in a second direction opposite the first direction.

14. An aerial fiber optic cable system according to claim 9 further comprising a plurality of spaced apart vertical support structures defining the aerial route and carrying said distribution fiber optic cable and said first sub-distribution fiber optic system.

15. An aerial fiber optic cable system comprising:

a distribution fiber optic cable extending along an aerial route;

at least one fiber optic splice enclosure connected to said distribution fiber optic cable along the aerial route;

a forward sub-distribution fiber optic system extending along the aerial route in a forward direction away from said at least one fiber optic splice enclosure; and

a backward sub-distribution fiber optic system extending along the aerial route in a backward direction;

each of said forward and backward sub-distribution fiber optic systems comprising at least one fiber optic tap along the aerial route, and a first sub-distribution fiber optic cable extending along the aerial route between said at least one fiber optic splice enclosure and a first fiber optic tap.

16. An aerial fiber optic cable system according to claim 15 wherein each of said forward and backward sub-distribution fiber optic systems further comprises at least one drop fiber optic cable extending away from the aerial route at at least one of said fiber optic taps.

17. An aerial fiber optic cable system according to claim 16 wherein said tap fiber optic connectors comprise:

an input fiber optic connector for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors for coupling to respective drop fiber optic cables.

18. An aerial fiber optic cable system according to claim 17 wherein each of said fiber optic taps further comprises a splitter carried by said tap housing.

19. An aerial fiber optic cable system according to claim 15 further comprising a plurality of spaced apart vertical support structures defining the aerial route and carrying said distribution fiber optic cable and said forward and backward sub-distribution fiber optic systems.

20. An aerial fiber optic cable system comprising:

a distribution fiber optic cable extending along an aerial route;

at least one fiber optic splice enclosure connected to said distribution fiber optic cable along the aerial route; and

a lateral sub-distribution fiber optic system extending outwardly from the aerial route in a lateral direction away from said at least one splice enclosure and comprising

a plurality of spaced apart fiber optic taps, each tap comprising a tap housing and a plurality of tap fiber optic connectors carried thereby,

a first lateral sub-distribution fiber optic cable extending between said at least one splice enclosure and a first one of said fiber optic taps, and

at least one second lateral sub-distribution fiber optic cable extending between adjacent fiber optic taps so that said first lateral sub-distribution fiber optic cable and said at least one second lateral sub-distribution fiber optic cable are arranged in end-to-end relation,

said first lateral sub-distribution fiber optic cable and said at least one second lateral sub-distribution fiber optic cable each comprising a pre-connectorized fiber optic cable.

21. An aerial fiber optic cable system according to claim 20 wherein said lateral sub-distribution fiber optic system further comprises at least one drop fiber optic cable extending away from at least one of said fiber optic taps.

22. An aerial fiber optic cable system according to claim 21 wherein each of said plurality of fiber optic taps comprises:

an input fiber optic connector for coupling to a preceding lateral sub-distribution fiber optic cable;

an output fiber optic connector for coupling to a succeeding lateral sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors for coupling to respective drop fiber optic cables.

23. An aerial fiber optic cable system according to claim 22 wherein each of said fiber optic taps further comprises a splitter carried by said tap housing.

24. A method for installing an aerial fiber optic cable system comprising:

installing a fiber optic distribution cable along an aerial route;

connecting at least one fiber optic splice enclosure to the fiber optic distribution cable along the aerial route; and

installing a first fiber optic sub-distribution system extending along the aerial route in a first direction away from the at least one fiber optic splice enclosure by

installing a plurality of spaced apart fiber optic taps along the aerial route,

installing a first sub-distribution fiber optic cable extending along the aerial route between the at least one fiber optic splice enclosure and a first one of the fiber optic taps,

installing at least one second sub-distribution fiber optic cable extending between adjacent fiber optic taps so that the first sub-distribution fiber optic cable and the at least one second sub-distribution fiber optic cable are arranged in end-to-end relation, and

installing at least one drop fiber optic cable extending outwardly from the aerial route at at least one of the fiber optic taps.

25. A method according to claim 24 further comprising adding at least one drop fiber optic cable to the first fiber optic sub-distribution system after an initial installation.

26. A method according to claim 24 wherein each of the first and at least one second sub-distribution fiber optic cables comprises a pre-connectorized fiber optic cable.

27. A method according to claim 25 wherein each of the fiber optic taps comprises:

a tap housing;

an input fiber optic connector carried by the tap housing for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector carried by the tap housing for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors carried by tap housing for coupling to respective drop fiber optic cables.

28. A method according to claim 27 wherein each of the fiber optic taps further comprises a fiber optic splitter carried by the tap housing.

29. A method according to claim 24 further comprising installing a second sub-distribution fiber optic system extending along the aerial route in a second direction opposite the first direction.

30. A method according to claim 24 wherein the distribution fiber optic cable is carried by a plurality of spaced apart vertical support structures;

and further comprising connecting the first sub-distribution fiber optic system to the plurality of spaced apart vertical support structures.

31. A method according to claim 24 further comprising installing a respective optical network unit to each drop fiber optic cable.

32. A method for installing an aerial fiber optic cable system comprising:

installing a fiber optic distribution cable along an aerial route;

connecting at least one fiber optic splice enclosure to the fiber optic distribution cable along the aerial route;

installing a forward sub-distribution fiber optic system extending along the aerial route in a forward direction away from the at least one fiber optic splice enclosure; and

installing a backward sub-distribution fiber optic system extending along the aerial route in a backward direction;

wherein installing the forward sub-distribution fiber optic system and installing the backward sub-distribution fiber optic system each comprises

installing at least one fiber optic tap along the aerial route, and

installing a first sub-distribution fiber optic cable extending along the aerial route between the at least one fiber optic splice enclosure and a first fiber optic tap.

33. A method according to claim 32 wherein each of the forward and backward sub-distribution fiber optic systems comprises at least one drop fiber optic cable extending away from the aerial route at at least one of the fiber optic taps.

34. A method according to claim 32 wherein the first sub-distribution fiber optic cable comprises a pre-connectorized fiber optic cable.

35. A method according to claim 33 wherein the plurality of tap fiber optic connectors comprises:

an input fiber optic connector for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors for coupling to respective drop fiber optic cables.

36. A method according to claim 34 wherein each of said fiber optic taps further comprises a splitter carried by said tap housing.

37. A method according to claim 32 wherein the distribution fiber optic cable is carried by a plurality of spaced apart vertical support structures defining the aerial route;

and further comprising connecting the forward and backward sub-distribution fiber optic systems to the plurality of spaced apart vertical support structures.

38. A method for installing an aerial fiber optic cable system comprising:

connecting at least one fiber optic splice enclosure to a fiber optic distribution cable along an aerial route; and

installing a first fiber optic sub-distribution system extending along the aerial route in a first direction away from the at least one fiber optic splice enclosure by

installing a plurality of spaced apart fiber optic taps along the aerial route,

installing a first sub-distribution fiber optic cable extending along the aerial route between the at least one fiber optic splice enclosure and a first one of the fiber optic taps,

installing at least one second sub-distribution fiber optic cable extending between adjacent fiber optic taps so that the first sub-distribution fiber optic cable and the at least one second sub-distribution fiber optic cable are arranged in end-to-end relation, and

installing at least one drop fiber optic cable extending outwardly from the aerial route at at least one of the fiber optic taps.

39. A method according to claim 38 further comprising adding at least one drop fiber optic cable to the first fiber optic sub-distribution system after an initial installation.

40. A method according to claim 38 wherein each of the first and at least one second sub-distribution fiber optic cables comprises a pre-connectorized fiber optic cable.

41. A method according to claim 39 wherein each of the fiber optic taps comprises:

a tap housing;

an input fiber optic connector carried by the tap housing for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector carried by the tap housing for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors carried by tap housing for coupling to respective drop fiber optic cables.

42. A method according to claim 41 wherein each of the fiber optic taps further comprises a fiber optic splitter carried by the tap housing.

45. A method according to claim 39 wherein the first sub-distribution fiber optic cable comprises a pre-connectorized fiber optic cable.

43. A method for installing an aerial fiber optic cable system comprising:

connecting at least one fiber optic splice enclosure to a fiber optic distribution cable along an aerial route;

installing a forward sub-distribution fiber optic system extending along the aerial route in a forward direction away from the at least one fiber optic splice enclosure; and

installing a backward sub-distribution fiber optic system extending along the aerial route in a backward direction;

wherein installing the forward sub-distribution fiber optic system and installing the backward sub-distribution fiber optic system each comprises

installing at least one fiber optic tap along the aerial route, and

installing a first sub-distribution fiber optic cable extending along the aerial route between the at least one fiber optic splice enclosure and a first fiber optic tap.

44. A method according to claim 43 wherein each of the forward and backward sub-distribution fiber optic systems comprises at least one drop fiber optic cable extending away from the aerial route at at least one of the fiber optic taps.

46. A method according to claim 44 wherein the plurality of tap fiber optic connectors comprises:

an input fiber optic connector for coupling to a preceding sub-distribution fiber optic cable;

an output fiber optic connector for coupling to a succeeding sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors for coupling to respective drop fiber optic cables.

47. A method according to claim 46 wherein each of said fiber optic taps further comprises a splitter carried by said tap housing.

48. A method for installing an aerial fiber optic cable system comprising:

connecting at least one fiber optic splice enclosure to a fiber optic distribution cable along an aerial route; and

installing a lateral fiber optic sub-distribution system extending outwardly from the aerial route in a lateral direction away from the at least one fiber optic splice enclosure by

installing a plurality of spaced apart fiber optic taps,

installing a first lateral sub-distribution fiber optic cable extending between the at least one fiber optic splice enclosure and a first one of the fiber optic taps, and

installing at least one second lateral sub-distribution fiber optic cable extending between adjacent fiber optic taps so that the first lateral sub-distribution fiber optic cable and the at least one second lateral sub-distribution fiber optic cable are arranged in end-to-end relation,

the first lateral sub-distribution fiber optic cable and the at least one second lateral sub-distribution fiber optic cable each comprising a pre-connectorized fiber optic cable.

49. A method according to claim 48 further comprising adding at least one drop fiber optic cable to the lateral fiber optic sub-distribution system after an initial installation.

50. A method according to claim 49 wherein each of the fiber optic taps comprises:

a tap housing;

an input fiber optic connector carried by the tap housing for coupling to a preceding lateral sub-distribution fiber optic cable;

an output fiber optic connector carried by the tap housing for coupling to a succeeding lateral sub-distribution fiber optic cable; and

a plurality of drop fiber optic connectors carried by tap housing for coupling to respective drop fiber optic cables.

51. A method according to claim 50 wherein each of the fiber optic taps further comprises a fiber optic splitter carried by the tap housing.