Method and apparatus for deploying fiber optic cable to subscriber

• US 6,427,035 B1
• Filed: 08/12/1999
• Issued: 07/30/2002
• Est. Priority Date: 08/12/1999
• Status: Expired due to Fees

• Current Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Original Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Inventors: Mahony, Glenn M.
• Primary Examiner(s): Sircus, Brian
• Assistant Examiner(s): Zarroli, Michael C.
• Application Number:
  US09/372,675
• Time in Patent Office: 1,083 Days
• Field of Search: 385/15, 385/24, 359/123, 359/124, 359/115, 359/125, 359/167, 359/118, 359/121, 359/137
• US Class Current: 385/15
• CPC Class Codes: G02B 6/2804 forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
• CPC Class Codes: G02B 6/501 underground installation of connection boxes

Abstract

A fiber optic deployment network that delivers uninterrupted fiber optic service from a service provider central office to a subscriber'"'"'s optical network terminal, and as a component of that deployment network, a fiber optic deployment apparatus and method for deploying multiple fiber optic drops from an incoming fiber optic strand spliced from a single fiber optic strand. The deployment apparatus providing splitting and terminating functions in a combined splitter-terminal package thereby simplifying installation of the fiber optic deployment. The splitter-terminal package having a splice case, a splitter and connectorized terminations for connecting and incoming fiber optic strand, splitting the incoming fiber optic stand into a number of outgoing strands and terminating the outgoing strands at connectorized terminations. The splice case separates an incoming fiber optic strand from a primary fiber optic strand, the incoming fiber optic strand connects to the incoming side of the splitter-terminal package, the outgoing side of the splitter-terminal package connects to the fiber optic drops, and the fiber optic drops proceed to the subscriber premises. The fiber optic drops are thereby connector fitted providing continuous fiber optic service throughout the network.

Claims

1. A fiber optic network providing continuous fiber optic service from a central office to a subscriber premises comprising:

(a) a distribution splitter in communication with a first fiber optic electronic device in the central office through a primary fiber optic strand, wherein the distribution splitter optically divides the primary fiber optic strand into a plurality of secondary fiber optic strands;

(b) a splice case connected to one secondary fiber optic strand of the plurality of secondary fiber optic strands, wherein the splice case diverts the one secondary fiber optic strand from the plurality of secondary fiber optic strands;

(c) a housing that receives the one secondary fiber optic strand, the housing containing;

(i) a local splitter in communication with the one secondary fiber optic strand, wherein the local splitter optically divides the one secondary fiber optic strand into a plurality of local fiber optic strands, and

(ii) a connectorized termination connected to one local fiber optic strand of the plurality of local fiber optic strands;

(d) a fiber optic drop in communication with the connectorized termination; and

(e) a second fiber optic electronic device in communication with the fiber optic drop, wherein the second fiber optic electronic device is located in the subscriber premises,

wherein the fiber optic network is passive between the first fiber optic electronic device and the second fiber optic electronic device.

2. The fiber optic network of claim 1, wherein the first fiber optic electronic device comprises an optical line terminal.

3. The fiber optic network of claim 1, wherein the first fiber optic electronic device comprises a video transmitter and an erbium-doped fiber amplifier.

4. The fiber optic network of claim 1, wherein the second fiber optic electronic device comprises an optical network terminal.

5. The fiber optic network of claim 1, wherein the one secondary fiber optic strand is in communication with the local splitter through an incoming connectorized termination.

6. The fiber optic network of claim 5, wherein the housing further encloses the incoming connectorized termination.

7. The fiber optic network of claim 1, further comprising a shell enclosing the housing.

8. The fiber optic network of claim 7, wherein the shell is one of a pedestal enclosure, a pole-mounted enclosure, and a strand-mounted enclosure.

9. The fiber optic network of claim 7, wherein the shell further contains the one secondary fiber optic strand in communication with the local splitter and the splice case connected to the one secondary fiber optic strand.

14. The method of deploying fiber optic cable of claim 7, wherein the step of routing the secondary fiber optic strand to the local splitter comprises connecting the secondary fiber optic strand to the local splitter through an incoming connectorized termination.

15. The method of deploying fiber optic cable of claim 14, further comprising the step of enclosing the incoming connectorized termination in the housing.

10. A method of deploying fiber optic cable from a service provider central office to a subscriber premises comprising the steps of:

routing a primary fiber optic strand from an optical line terminal at a central office to a distribution splitter;

optically splitting the primary fiber optic strand into a plurality of secondary fiber optic strands with the distribution splitter;

diverting a secondary fiber optic strand from the plurality of secondary fiber optic strands;

routing the secondary fiber optic strand to a local splitter situated central to a cluster of subscriber premises;

at the local splitter, optically splitting the secondary fiber optic strand into a plurality of local fiber optic strands;

terminating at least one of the plurality of local fiber optic strands with a connectorized termination;

enclosing the local splitter, the plurality of local fiber optic strands, and the connectorized termination in a housing;

connecting a fiber optic drop to the connectorized termination;

routing the fiber optic drop into the subscriber premises; and

terminating the fiber optic drop at an optical network terminal located in the subscriber premises,

wherein transmissions between the optical line terminal and the optical network terminal are passive.

11. The method of deploying fiber optic cable of claim 10, wherein step of diverting is performed using a splice case.

12. The method of deploying fiber optic cable of claim 10, further comprising the step of enclosing the housing in a shell.

13. The method of claims 12, further comprising the step of enclosing the splice case in the shell.