Method and apparatus for installing fiber optic jumper cables in an equipment enclosure

• US 5,937,130 A
• Filed: 04/20/1998
• Issued: 08/10/1999
• Est. Priority Date: 04/20/1998
• Status: Expired due to Term

• Current Assignee: Avaya Incorporated
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Amberg, Mark F., Lindemulder, Charles R., Bryant, Jr., Robert Leonard
• Primary Examiner(s): Palmer, Phan T. H.
• Application Number:
  US09/063,164
• Time in Patent Office: 477 Days
• Field of Search: 385/134, 385/135, 385/136, 385/137, 385/138, 385/139
• US Class Current: 385/134
• CPC Class Codes: G02B 6/3807 Dismountable connectors, i.e. comprising plugs
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/3898 Tools, e.g. handheld; Tuning wrenches; Jigs used with connectors, e.g. for extracting, removing or inserting in a panel, for engaging or coupling connectors, for assembling or disassembling components within the connector, for applying clips to hold two connectors together or for crimping tools for cleaning, G02B6/3866; tools in general B25B
• 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
• CPC Class Codes: G02B 6/4453 Cassettes

Abstract

The present method and apparatus for installing fiber optic jumper cables in an equipment enclosure enables the simple installation of fiber optic jumper cables in an equipment enclosure that is provisioned with traditional wire jumper cables and connectors. This apparatus includes a fiber optic pass through tool that enables the craftsperson to thread the fiber optic jumper cables through the equipment enclosure with minimal effort and avoids damage to the fiber optic jumper cable. The fiber optic pass through tool comprises two parts: an extender and a hybrid fiber optic coupling adapter. The extender provides the craftsperson with sufficient reach to pull the fiber optic jumper cable through the entire length of the equipment enclosure, with sufficient flexibility to bend the tool around comers, and yet with sufficient stiffness to control the passage of the tool through the equipment enclosure. A hybrid fiber optic coupling adapter is attached in a snap fit manner to the extender and provides a secure means of connecting the fiber optic jumper cable to the extender without the need for fasteners. The fiber optic jumper cable can then be pulled back through the equipment enclosure to the front of the fiber optic circuit pack using the fiber optic pass through tool. The hybrid fiber optic coupling adapter is then disconnected from the handle, mounted on the equipment enclosure bulkhead and used to terminate the fiber optic jumper cable.

Claims

1. Apparatus for installing fiber optic jumper cables in an equipment enclosure that is equipped with a plurality of circuit packs mounted in circuit pack carriers, wherein said circuit packs include at least one fiber optic circuit pack having a fiber optic connector on its front face for receiving a fiber optic connector, comprising:

extender means, having an elongated shape with sufficient reach to pull a fiber optic jumper cable through the entire length of the equipment enclosure, with sufficient flexibility to bend around comers; and

fiber optic connector coupler means, removably connectable to said extender means, for receiving a connectorized end of a fiber optic jumper cable.

2. The apparatus of claim 1 further comprising:

means attached to an end of said extender means for removably receiving said fiber optic connector coupler means.

3. The apparatus of claim 2 wherein said extender means comprises:

strip means having a substantially rectangular shape and of sufficient stiffness to control the passage of the fiber optic connector coupler means through the equipment enclosure to a desired location at the back of said equipment enclosure.

4. The apparatus of claim 1 further comprising:

fiber optic jumper cable means comprising a length of optical fiber, terminated at both ends thereof with optical fiber connectors, at least one of said optical fiber connectors being compatible with and connectable to said fiber optic connector coupler means.

5. The apparatus of claim 4 further comprising:

fiber optic connector mounting means affixable to a support member located at a back side of said equipment enclosure for receiving one of said fiber optic connectors and securing same to said support member.

6. The apparatus of claim 5 wherein said fiber optic connector mounting means comprises:

a body having an aperture formed therein for receiving said fiber optic connector coupler means;

lip means formed at a first end of said body for engaging an edge of an aperture formed in said support member; and

U-shaped member formed at a second end of said body, opposite said first end and deflectable for enabling said fiber optic connector mounting means to enter and be secured in said aperture formed in said support member.

7. The apparatus of claim 4 further comprising:

fiber optic connector mounting means affixable to a support member located at a back side of said equipment enclosure for receiving said fiber optic connector coupler means and securing same to said support member.

8. The apparatus of claim 7 wherein said fiber optic connector coupler means is operable to receive a one of said fiber optic connectors mounted on said fiber optic jumper cable means.

9. A method for installing fiber optic jumper cables in an equipment enclosure that is equipped with a plurality of circuit packs mounted in circuit pack carriers, wherein said circuit packs include at least one fiber optic circuit pack having a fiber optic connector on its front face for receiving a fiber optic connector, comprising the steps of:

connecting a fiber optic connector coupler to an extender having an elongated shape with sufficient reach to pull a fiber optic jumper cable through the entire length of the equipment enclosure, with sufficient flexibility to bend around corners;

threading said extender, fiber optic connector coupler end first, through said equipment enclosure from a front side of said equipment enclosure to a predetermined location at a back of said equipment enclosure;

attaching a connectorized end of a fiber optic jumper cable to said fiber optic connector coupler that is removably connectable to said extender; and

pulling said extender with the attached jumper cable through said equipment enclosure to a front of said equipment enclosure.

10. The method of claim 9, wherein said fiber optic jumper cable comprises a length of optical fiber, terminated at both ends thereof with optical fiber connectors, said method further comprising:

mounting a fiber optic connector adapter plate to a support member located at a back side of said equipment enclosure for receiving one of said fiber optic connectors and securing same to said support member.