Space reuse during technology upgrade in a protection area of an outdoor enclosure

• US 6,980,725 B1
• Filed: 04/30/2002
• Issued: 12/27/2005
• Est. Priority Date: 04/30/2002
• Status: Expired due to Term

• Current Assignee: Calix Incorporated
• Original Assignee: Calix Networks Incorporated (Calix Incorporated)
• Inventors: Swieconek, Paul D.
• Primary Examiner(s): Font, Frank G.
• Assistant Examiner(s): Rude, Timothy L.
• Application Number:
  US10/137,210
• Time in Patent Office: 1,337 Days
• Field of Search: 385135-137
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4452 Distribution frames
• CPC Class Codes: G02B 6/44526 Panels or rackmounts covering a whole width of the frame or rack
• CPC Class Codes: G02B 6/44528 Patch-cords; Connector arrangements in the system or in the box routing arrangements H04Q1/00

Abstract

An outdoor enclosure for a remote terminal is designed so that a structure supporting protector modules (normally coupled between telephone lines and line cards to prevent damage from a surge in current or voltage) is easily reachable and removable. To upgrade from copper to fiber, the just-described hardware (also called “protect block”) is replaced with other hardware (also called “fiber fanout enclosure”) that supports adapters for receiving connectors of optical fibers. The protect block and the fiber fanout enclosure are designed to have approximately (or even exactly) the same footprint, so that they occupy at least some of the same space (before and after replacement). Reuse of the same space in this manner is advantageous over an outdoor enclosure designed to have additional space dedicated for adapters and fiber fanout enclosures to be added in future, because a more compact arrangement results from reuse of the same space.

Claims

1. A method of reusing space to support copper to fiber migration of a communication network, the method comprising:

removing from a remote terminal of the communication network, a block containing an array of connectors for protector modules;

prior to removal, pivoting the block from a vertical to a horizontal position;

decoupling the block from a line card;

installing in a space at least partially occupied by the block, an enclosure containing a fan out of optical fibers; and

pivoting the block back from the horizontal position to the vertical position.

2. The method of claim 1 wherein:

prior to removal, the array of connectors was electrically connected to at least one line card by a plurality of copper wires; and

the method further comprises decoupling the plurality of copper wires from the line card by disconnecting a connector.

3. The method of claim 2 wherein:

the plurality of copper wires are hereinafter “

first plurality of copper wires”

; and

prior to removal, the array of connectors was also electrically connected to a second plurality of copper wires; and

the method further comprises severing the second plurality of copper wires from the block or moving the second plurality of copper wires through the space previously occupied by the block.

4. The method of claim 1 wherein:

the removing comprises unfastening a plurality of fasteners that attach the block to a frame; and

the installing comprises fastening the same plurality of fasteners to attach the enclosure to the frame.

5. The method of claim 1 wherein:

the block and the enclosure have approximately the same footprint.

6. The method of claim 1 further comprising:

coupling at least a group of adapters in the enclosure to a fiber optic line card.

7. The method of claim 6 further comprising:

prior to the coupling, replacing a copper line card, previously present in the remote terminal, with the fiber optic card.

8. The method of claim 1 further comprising:

repeating the removing and the installing until a majority of the protector modules in the remote terminal are replaced by adapters.

9. The method of claim 8 further comprising:

replacing a majority of copper line cards previously present in the remote terminal with fiber optic cards.

10. A method of reusing space to support copper to fiber migration of a communication network, the method comprising:

removing from a remote terminal of the communication network, a block containing an array of connectors for protector modules; and

installing in a space at least partially occupied by the block, an enclosure containing a fan out of optical fibers;

wherein the block is in a first position relative to a line card, during normal operation of the remote terminal;

the method further comprises moving the block from the first position into a second position prior to removal, the block remaining electrically connected to said line card during the movement.

11. The method of claim 10 further comprising:

decoupling the block from said line card while the block is in the second position; and

moving the block back from the second position into the first position subsequent to decoupling and prior to removal.

12. The method of claim 10 wherein:

prior to removal, the array of connectors was electrically connected to at least one line card by a plurality of copper wires; and

the method further comprises decoupling the plurality of copper wires from the line card by disconnecting a connector.

13. The method of claim 12 wherein:

the plurality of copper wires are hereinafter “

first plurality of copper wires”

; and

prior to removal, the array of connectors was also electrically connected to a second plurality of copper wires; and

the method further comprises severing the second plurality of copper wires from the block or moving the second plurality of copper wires through the space previously occupied by the block.

14. The method of claim 10 wherein:

the removing comprises unfastening a plurality of fasteners that attach the block to a frame; and

the installing comprises fastening the same plurality of fasteners to attach the enclosure to the frame.

15. The method of claim 10 wherein:

the block and the enclosure have approximately the same footprint.

16. The method of claim 10 further comprising:

coupling at least a group of adapters in the enclosure to a fiber optic line card.

17. The method of claim 16 further comprising:

prior to the coupling, replacing a copper line card, previously present in the remote terminal, with the fiber optic card.

18. The method of claim 10 further comprising:

repeating the removing and the installing until a majority of the protector modules in the remote terminal are replaced by adapters.

19. The method of claim 18 further comprising:

replacing a majority of copper line cards previously present in the remote terminal with fiber optic cards.

20. A method of reusing space in upgrading a communication network, the method comprising:

removing from a remote terminal in the communication network, a first communication hardware comprising a copper protector module;

installing in a space that was at least partially occupied by the first communication hardware, a second communication hardware comprising a fiber optic adapter;

decoupling the first communication hardware from a line card in a card cage of the remote terminal;

pivoting the first communication hardware from a first position to a second position before decoupling; and

pivoting the first communication hardware from the second position to the first position after decoupling.

21. The method of claim 20 wherein the remote terminal comprises a frame having a plurality of openings, and wherein:

the first communication hardware is mounted in a first opening, prior to said removing; and

the second communication hardware is mounted in said first opening, subsequent to said installing.

22. The method of claim 20 wherein:

the first communication hardware comprises a copper cable; and

the second communication hardware comprises a fiber optic cable.