Distribution terminal for network access point

• US 6,621,975 B2
• Filed: 11/30/2001
• Issued: 09/16/2003
• Est. Priority Date: 11/30/2001
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Battey, Jennifer A., Fontaine, Steve A., Laporte, Richard B., Blankenship, Aaron I.
• Primary Examiner(s): Kim, Robert H.
• Assistant Examiner(s): ARTMAN, THOMAS R
• Application Number:
  US09/997,335
• Publication Number:
  US 20030103750A1
• Time in Patent Office: 655 Days
• Field of Search: 385/134, 385/135
• US Class Current: 385/135
• CPC Class Codes: G02B 6/445 with lateral pivoting cover

Abstract

A distribution terminal is provided for interconnecting one or more fiber optic drop cables with at least one fiber optic distribution cable at a convenient access point in a telecommunications network. The terminal comprises a base and a cover adapted to be opened and closed on the base. The base defines an interior cavity having a lower fiber management area for accessing the distribution cable and an upper fiber management area for accessing the drop cables. The upper fiber management area includes a transition panel that is movable relative to the base to provide access to the lower fiber management area. Thus, both the lower fiber management area and the upper fiber management area are easily and readily accessible to a field technician initially installing the terminal and subsequently reconfiguring the optical fiber connections within the terminal at the access point.

Claims

1. An optical fiber distribution terminal for interconnecting one or more drop cables with at least one distribution cable, the terminal comprising:

a base defining a lower fiber management area for receiving and routing the distribution cable and an upper fiber management area for receiving and routing the drop cables;

a panel disposed within the base, the panel separating the lower fiber management area from the upper fiber management area and movable relative to the base to provide access to the distribution cable in the lower fiber management area;

at least one splice tray disposed within the lower fiber management area for splicing at least one optical fiber of the distribution cable to at least one optical fiber terminating in a first pigtail;

at least one splice fray disposed within the upper fiber management area for splicing at least one optical fiber of the one or more drop cables to at least one optical fiber terminating in a second pigtail; and

at least one transition adapter disposed within the upper fiber management area for connecting the first pigtail to the second pigtail.

2. A distribution terminal according to claim 1 wherein the base comprises opposed end walls and further comprising at least one cable port assembly disposed in an end wall for retaining the one or more drop cables and the distribution cable between the base and the cable port assembly.

3. A distribution terminal according to claim 2 wherein the at least one cable port assembly comprises a first port assembly for retaining the one or more drop cables between the base and the first port assembly and a second port assembly for retaining the distribution cable between the base and the second port assembly.

4. A distribution terminal according to claim 3 wherein the first port assembly comprises a first cap for retaining the one or more drop cables between the base and the first cap and wherein the second port assembly comprises a spacer for retaining the distribution cable between the base and the spacer and a second cap for retaining one or more additional drop cables between the spacer and the second cap.

5. A distribution terminal according to claim 1 wherein the distribution cable comprises a plurality of buffer tubes each containing one or more optical fibers and further comprising a slack storage area disposed within the base, the slack storage area storing at least some of the buffer tubes of the distribution cable.

6. A distribution terminal according to claim 5 wherein the plane defined by the buffer tubes stored in the slack storage area is generally perpendicular to the plane defined by the lower fiber management area.

7. An optical fiber distribution terminal for interconnecting one or more drop cables with at least one distribution cable, the terminal comprising:

a base defining a lower fiber management area for receiving and routing the distribution cable and an upper fiber management area for receiving and routing the drop cables;

a panel disposed within the base, the panel separating the lower fiber management area from the upper fiber management area and movable relative to the base to provide access to the distribution cable in the lower fiber management area;

at least one splice tray disposed within the lower fiber management area for splicing optical fibers of the distribution cable to at least one optical fiber terminating in a first pigtail;

at least one splice tray disposed within the upper fiber management area for splicing optical fibers of the one or more drop cables to a plurality of optical fibers each terminating in a second pigtail;

at least one coupler tray disposed within the lower fiber management area, the coupler tray having at least one optical fiber terminating in a third pigtail and a plurality of optical fibers each terminating in a fourth pigtail;

at least one coupler adapter disposed within the lower fiber management area for connecting the third pigtail to the first pigtail; and

at least one transition adapter disposed within the upper fiber management area for connecting the fourth pigtails to the second pigtails.

8. An optical fiber distribution terminal for interconnecting one or more drop cables with at least one distribution cable, the terminal comprising:

a base defining a lower fiber management area for receiving and routing the distribution cable and an upper fiber management area for receiving and routing the drop cables;

a panel disposed within the base, the panel separating the lower fiber management area from the upper fiber management area and movable relative to the base to provide access to the distribution cable in the lower fiber management area;

at least one coupler tray disposed within the lower fiber management area, the coupler tray having a plurality of optical fibers each terminating in a first pigtail;

at least one splice tray disposed within the upper fiber management area for splicing optical fibers of the one or more drop cables to a plurality of optical fibers each terminating in a second pigtail; and

at least one transition adapter disposed within the upper fiber management area for connecting the first pigtails to the second pigtails.

9. An optical fiber distribution terminal comprising:

a base defining a lower fiber management area for receiving and routing at least one distribution cable and an upper fiber management area for receiving and routing one or more drop cables;

means disposed within the base for separating the lower fiber management area from the upper fiber management area and for selectively accessing the lower fiber management area without disturbing the routing of the drop cables in the upper fiber management area;

at least one splice fray disposed within the lower fiber management area for splicing at least one optical fiber of the distribution cable to at least one optical fiber terminating in a first pigtail;

at least one splice tray disposed within the upper fiber management area for splicing at least one optical fiber of the one or more drop cables to at least one optical fiber terminating in a second pigtail; and

at least one transition adapter disposed within the upper fiber management area for connecting the first pigtail to the second pigtail.

10. A distribution terminal according to claim 9 wherein the means for separating and for selectively accessing comprises a movable panel disposed within the upper fiber management area, the panel movable between a stowed position to provide access to the routing of the one or more drop cables in the upper fiber management area and a deployed position to provide access to the routing of the distribution cable in the lower fiber management area without disturbing the routing of the one or more drop cables in the upper fiber management area.

11. An optical fiber distribution terminal comprising:

a base defining a lower fiber management area for receiving and routing at least one distribution cable and an upper fiber management area for receiving and routing one or more drop cables;

means disposed within the base for separating the lower fiber management area from the upper fiber management area and for selectively accessing the lower fiber management area without disturbing the routing of the drop cables in the upper fiber management area;

at least one splice tray disposed within the lower fiber management area for splicing optical fibers of the distribution cable to at least one optical fiber terminating in a first pigtail;

at least one splice tray disposed within the upper fiber management area for splicing optical fibers of the one or more drop cables to a plurality of optical fibers each terminating in a second pigtail;

at least one coupler tray disposed within the lower fiber management area, the coupler tray having at least one optical fiber terminating in a third pigtail and a plurality of optical fibers each terminating in a fourth pigtail;

at least one coupler adapter disposed within the lower fiber management area for connecting the third pigtail to the that pigtail; and

at least one transition adapter disposed within the upper fiber management area for connecting the fourth pigtails to the second pigtails.

12. An optical fiber distribution terminal comprising:

a base defining a lower fiber management area for receiving and routing at least one distribution cable and an upper fiber management area for receiving and routing one or more drop cables;

means disposed within the base for separating the lower fiber management area from the upper fiber management area and for selectively accessing the lower fiber management area without disturbing the routing of the drop cables in the upper fiber management area;

at least one coupler tray disposed within the lower fiber management area, the coupler way having a plurality of optical fibers each terminating in a first pigtail;

at least one splice tray disposed within the upper fiber management area for spiking optical fibers of the one or more drop cables to a plurality of optical fibers each terminating in a second pigtail; and

at least one transition adapter disposed within the upper fiber management area for connecting the first pigtails to the second pigtails.

13. An optical fiber distribution terminal for interconnecting one or more drop cables with at least one distribution cable, the terminal comprising:

a base defining a lower fiber management area for receiving and routing the distribution cable and an upper fiber management area for receiving and routing the one or more drop cables;

a transition panel movably attached to the base for separating the lower fiber management area from the upper fiber management area, the transition panel movable between a stowed position to provide access to the upper fiber management area and a deployed position to provide access to the lower fiber management area;

wherein the distribution cable is spliced to at least one distribution pigtail within the lower fiber management area;

wherein the one or more drop cables is spliced to at least one drop pigtail within the upper fiber management area; and

wherein at least one transition adapter is disposed within the base for connecting the distribution pigtail to the drop pigtail.

14. An optical fiber distribution terminal for interconnecting optical fibers at a network access point, the terminal comprising:

a base defining a lower compartment for receiving and routing a distribution cable and an upper compartment for receiving and routing one or more drop cables;

a panel movably attached to the base and disposed within the upper compartment, the panel movable between a first position to provide access to the drop cables in the upper compartment and a second position to provide access to the distribution cable in the lower compartment without the need to strain relieve the drop cables adjacent the panel;

wherein the distribution cable is spliced to at least one distribution pigtail within the lower compartment;

wherein the one or more drop cables is spliced to at least one drop pigtail within the upper compartment; and

wherein at least one transition adapter is disposed within the base for connecting the distribution pigtail to the drop pigtail.