Fiber panel with integrated couplers

• US 6,804,447 B2
• Filed: 11/05/2002
• Issued: 10/12/2004
• Est. Priority Date: 11/05/2002
• Status: Expired due to Term

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Smith, Trevor D., Krampotich, Dennis J.
• Primary Examiner(s): Patel, Tulsidas C.
• Application Number:
  US10/289,167
• Publication Number:
  US 20040086252A1
• Time in Patent Office: 707 Days
• Field of Search: 385/134, 385/135, 385/52
• US Class Current: 385/134
• 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 invention relates to a telecommunications panel for connecting optical fiber cables from inter-facility cables (IFC) to fiber optic termination equipment. The telecommunications panel receives the IFC cable into a tray where the optical fibers within the cable are spliced and coupled to monitor fibers and transmission fibers. These monitor and transmission fibers are terminated at adapters within the panel for connection to cables extending to the FOT equipment. The IFC cables may be multi-strand optical fiber cables or single strand cables. The present invention also relates to a drop-in tray for use with a telecommunications panel which provides both splice and coupling devices on the same tray. The drop-in tray also includes adapters where the transmission and monitor fibers are terminated for connection to cables extending to FOT equipment.

Claims

1. A telecommunications panel for connecting fiber optic cables comprising:

an open fronted housing with an interior and a movable drawer slidably mounted within the interior;

a splice tray with a plurality of optical fiber splice locations;

a coupler tray with a plurality of coupler locations, each coupler configured for splitting an optical signal carried on an optical fiber into a transmission fiber and a monitoring fiber;

a plurality of adapters for optically connecting the transmission and monitoring fibers to optical fiber cables;

the movable drawer defining an adapter holding region, a splice tray holding region, and a coupler tray holding region.

2. The telecommunications panel of claim 1, wherein the panel further comprises an entry path for an optical fiber cable from an entry point to the splice tray, the entry path providing bend radius protection for optical fiber cables.

3. The telecommunications panel of claim 2, wherein the entry path includes slack storage for optical fiber cables.

4. The telecommunications panel of claim 1, wherein the panel further comprises a first intermediate cable path between the splice tray and the coupler tray which provides bend radius protection for optical fiber cables.

5. The telecommunications panel of claim 1, wherein the panel further comprises a second intermediate cable path between the coupler tray and the adapters which provides bend radius protection for optical fiber cables.

6. The telecommunications panel of claim 5, wherein the second intermediate cable path includes slack storage for optical fiber cables.

7. The telecommunication panel of claim 1, wherein the panel further comprises an exit path for an optical fiber cable from the adapters to an exit point from the panel, the exit path providing bend radius protection for optical fiber cables.

8. The telecommunications panel of claim 1, wherein the splice tray, the coupler tray and the adapters are mounted to a tray which is received within the movable drawer, the interior is defined by a top, a bottom and a pair of opposing sides and the movable drawer is slidable between open and closed positions.

9. The telecommunications panel of claim 8, wherein the movable drawer tray includes a faceplate which closes a front opening to the interior of the housing when the tray is in the closed position and wherein a plurality of the adapters are mounted to the faceplate.

10. An insert for a telecommunications panel for connecting fiber optic cables, the insert comprising:

a mounting plate configured to be positioned and removably mounted within a movable drawer of the telecommunications panel;

a splice tray mounted to the mounting plate, the splice tray including a plurality of optical fiber splice holder locations;

a coupler tray mounted to the mounting plate, the coupler tray including a plurality of coupler holder locations, each coupler configured for splitting an optical signal carried on an optical fiber into a transmission fiber and a monitoring fiber;

a plurality of adapters mounted to the mounting plate, the adapters for optically connecting the transmission and monitoring fibers to optical fiber cables.

11. The insert of claim 10, further comprising at least one bulkhead mounted to the mounting plate, wherein the adapters are mounted to the bulkhead.

12. The insert of claim 10, further comprising a splice housing mounted to the mounted plate wherein the splice tray and the coupler tray are received in the splice housing.

13. The insert of claim 12, wherein the splice housing includes a pair of opposing end walls which define an exterior cable slack storage structure and provides bend radius protection to cables stored about the structure.

14. The insert of claim 13, wherein the splice housing includes an opening for allowing an optical fiber cable to pass from the exterior cable slack storage structure into an interior of the splice housing and wherein the splice housing includes at least one interior cable path for directing the cable to the splice tray while storing cable slack and providing bend radius protection for the cable.

15. The insert of claim 14, wherein the splice housing includes a second interior cable path for directing an optical fiber cable from the splice tray to the coupler tray while storing cable slack and providing bend radius protection.

16. The insert of claim 15, wherein the exterior cable slack storage structure includes a raised floor portion the splice housing includes a third interior cable path for directing an optical fiber cable from the coupler tray out of the splice housing beneath the raised floor portion to the adapters.

17. A method for preparing the termination and monitoring an optical fiber cable comprising the steps of:

providing an outside plant cable containing at least one strand of optical fiber;

extending the outside plant cable into a telecommunications connection plate;

receiving the at least one strand of optical fiber from the outside plant cable into a splice tray mounted to the connection plate and optically connecting the strand of optical fiber to a transition fiber;

extending the transition fiber from the splice tray to a coupler tray mounted to the connection plate and optically connecting the transition fiber to a pair of optical fibers;

extending each of the pair of optical fibers from the coupler tray to an adapter mounted to the connection plate.

18. The method of claim 17, wherein the plate is mounted within a telecommunications equipment panel.

19. The method of claim 18, wherein the telecommunications panel includes a pair of opposing sides with flanges extending from each of the sides adapted for mounting the panel to a telecommunications equipment rack.

20. The method of claim 18, wherein the telecommunications equipment panel includes a housing with atop, a bottom, and a pair of opposing sides defining a front opening and the plate is mounted within a drawer slidably mounted within the opening.

21. The method of claim 20, wherein the drawer is slidable between an open and a closed position.

22. The method of claim 21, wherein adapters connected to the one of the pair of optical fibers extending from the coupler tray are mounted to a faceplate of the drawer and are accessible from outside the panel when the drawer is in the closed position.