Optical fiber cable distribution shelf with cable management system

• US 6,363,198 B1
• Filed: 03/07/2000
• Issued: 03/26/2002
• Est. Priority Date: 03/07/2000
• Status: Expired due to Term

• Current Assignee: Sumitomo Electric Lightwave Corp. (Sumitomo Corporation)
• Original Assignee: Sumitomo Electric Lightwave Corp. (Sumitomo Corporation)
• Inventors: Braga, David J., Tariyal, Aditya K., Kapella, David W.
• Primary Examiner(s): Ullah, Akm E.
• Application Number:
  US09/519,708
• Time in Patent Office: 749 Days
• Field of Search: 385/100-109, 385/134-135, 385/147, 385/22, 385/16
• US Class Current: 385/134
• CPC Class Codes: G02B 6/4452 Distribution frames
• CPC Class Codes: G02B 6/44524 with frame parts or auxiliary devices mounted on the frame and collectively not covering a whole width of the frame or rack cassettes G02B6/4453
• 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 6/4471 Terminating devices demountable connectors G02B6/3807; Cable clamps

Abstract

An optical fiber cable distribution shelf is disclosed which comprises a cable management clip system in the rear bay as well as a cable management clip system in the front bay of the shelf. The cable management clip systems each include at least one pair of controlled bend clips and at least one divider clip positioned therebeneath in order to control the bend and to route optical fiber into and out of the cable distribution shelf without imparting any undesirable fiber damage or related attenuated signals due to uncontrolled bending of the fibers. Thus, the improved optical fiber cable distribution shelf provides for installing a higher density of fiber optic connections into an optical fiber cable distribution shelf.

Claims

1. A cable distribution shelf for connecting incoming optical fiber cables with fiber optic patch cords or similar fiber optic cables, said cable distribution shelf comprising:

(a) a housing having a divider wall extending transversely therethrough so as to define a front bay and a rear bay therein;

(b) said divider wall defining at least two laterally spaced-apart apertures therein with a front clip panel therebetween in the front bay and a rear clip panel therebetween in the rear bay;

(c) a first plurality of face plates being removably mounted to said divider wall so as to be positioned in the first divider wall aperture and substantially flush with said divider wall;

(d) a second plurality of face plates being removably mounted to said divider wall so as to be positioned in the second divider wall aperture and substantially flush with said divider wall;

(e) a plurality of adapters being mounted to said first and second plurality of face plates, said adapters serving to connect incoming optical fiber connectors to outgoing optical fiber connectors;

(f) a front cable management clip system mounted to said front clip panel and comprising;

(i) at least one pair of laterally spaced-apart controlled bend clips each having a collar portion and an inwardly and downwardly inclined arcuate ramp portion for receiving and bendingly guiding optical fiber from a corresponding one of said first or second plurality of face plates laterally inwardly and vertically downwardly along said front clip panel; and

(ii) at least one divider clip comprising a plurality of laterally spaced slots, said divider clip being positioned beneath said pair of controlled bend clips for receiving downwardly extending optical fiber from at least one of said pair of controlled bend clips into a corresponding slot and guiding optical fiber from said controlled bend clip vertically downwardly along said front clip panel towards the bottom of said cable distribution shelf; and

(g) a back cable management clip system mounted to said back clip panel and comprising;

(i) at least one pair of laterally spaced-apart controlled bend clips each having a collar portion and an inwardly and downwardly inclined arcuate ramp portion for receiving and bendingly guiding optical fiber from a corresponding one of said first or second plurality of face plates laterally inwardly and vertically downwardly along said front clip panel; and

(ii) at least one divider clip comprising a plurality of laterally spaced slots, said divider clip being positioned beneath said pair of controlled bend clips for receiving downwardly extending optical fiber from at least one of said pair of controlled bend clips into a corresponding slot and guiding optical fiber from said controlled bend clip vertically downwardly along said back clip panel towards the bottom of said cable distribution shelf.

2. The cable distribution shelf according to claim 1, wherein said housing is constructed so that the front bay and the rear bay can be easily accessed from the front or rear, respectively, of said housing.

3. The cable distribution shelf according to claim 1, wherein said divider wall defines two laterally spaced-apart apertures therein and wherein each of said two laterally spaced-apart apertures has a width that substantially corresponds to the width of a corresponding one of said first and second plurality of face plates.

4. The cable distribution shelf according to claim 1, wherein said first plurality of face plates comprises 6 face plates.

5. The cable distribution shelf according to claim 1, wherein said second plurality of face plates comprises 6 face plates.

6. The cable distribution shelf according to claim 1, wherein said plurality of adapters mounted to a face plate comprises 12 optical fiber adapters.

7. The cable distribution shelf according to claim 1, wherein said front and rear cable management clip systems each comprise:

(i) a plurality of vertically spaced pairs of controlled bend clips; and

(ii) a plurality of vertically spaced divider clips wherein a plurality of said divider clips are associated with a corresponding plurality of said pairs of controlled bend clips.

8. The cable distribution shelf according to claim 7, wherein each sequential pair of said controlled bend clips is positioned laterally further apart than the preceding pair of said controlled bend clips progressively from top to bottom of their vertical placement on said divider wall so as to position optical fiber in the medial portion of the uppermost divider clip and sequentially further outwardly in sequentially lower vertically spaced divider clips.

9. The cable distribution shelf according to claim 1, wherein the bending radius of said controlled bend clips is greater than 1.25 inches.

10. The cable distribution shelf according to claim 1, wherein said divider clips each comprise 10 laterally spaced slots defined by said outwardly extending finger elements.

11. A cable distribution shelf for connecting incoming optical fiber cables with fiber optic patch cords or similar fiber optic cables, said cable distribution shelf comprising:

(a) a housing having a divider wall extending transversely therethrough so as to define a front bay and a rear bay therein;

(b) said divider wall defining two laterally spaced-apart apertures therein with a front clip panel therebetween in the front bay and a rear clip panel therebetween in the rear bay;

(c) a first plurality of face plates being removably mounted to said divider wall so as to be positioned in the first divider wall aperture and substantially flush with said divider wall;

(d) a second plurality of face plates being removably mounted to said divider wall so as to be positioned in the second divider wall aperture and substantially flush with said divider wall;

(e) a plurality of adapters being mounted to said first and second plurality of face plates, said adapters serving to connect incoming optical fiber connectors to outgoing optical fiber connectors;

(f) a front cable management clip system mounted to said front clip panel and comprising;

(i) a plurality of vertically spaced pairs of laterally spaced-apart controlled bend clips each having a collar portion and an inwardly and downwardly inclined arcuate ramp portion for receiving and bendingly guiding optical fiber from a corresponding one of said first or second plurality of face plates laterally inwardly and vertically downwardly along said front clip panel; and

(ii) a plurality of vertically spaced divider clips comprising a plurality of laterally spaced slots, said divider clip being positioned beneath a plurality of pairs of controlled bend clips for receiving downwardly extending optical fiber from at least one of said pair of controlled bend clips into a corresponding slot and guiding optical fiber from said controlled bend clips vertically downwardly along said front clip panel towards the bottom of said cable distribution shelf; and

g. a back cable management clip system mounted to said back clip panel and comprising;

(i) a plurality of vertically spaced pairs of laterally spaced-apart controlled bend clips each having a collar portion and an inwardly and downwardly inclined arcuate ramp portion for receiving and bendingly guiding optical fiber from a corresponding one of said first or second plurality of face plates laterally inwardly and vertically downwardly along said front clip panel; and

(ii) a plurality of vertically spaced divider clips comprising a plurality of laterally spaced slots, said divider clips being positioned beneath a plurality of pairs of controlled bend clips for receiving downwardly extending optical fiber from at least one of said pair of controlled bend clips into a corresponding slot and guiding optical fiber from said controlled bend clips vertically downwardly along said back clip panel towards the bottom of said cable distribution shelf.

12. The cable distribution shelf according to claim 11, wherein said housing is constructed so that the front bay and the rear bay can be easily accessed from the front or rear, respectively, of said housing.

13. The cable distribution shelf according to claim 11, wherein each of said two laterally spaced-apart apertures has a width that substantially corresponds to the width of a corresponding one of said first and second plurality of face plates.

14. The cable distribution shelf according to claim 11, wherein said first plurality of face plates comprises 6 face plates.

15. The cable distribution shelf according to claim 11, wherein said second plurality of face plates comprises 6 face plates.

16. The cable distribution shelf according to claim 11, wherein said plurality of adapters mounted to a face plate comprises 12 optical fiber adapters.

17. The cable distribution shelf according to claim 11, wherein each sequential pair of said controlled bend clips is positioned laterally further apart than the preceding pair of said controlled bend clips progressively from top to bottom of their vertical placement on said divider wall so as to position optical fiber in the medial portion of the uppermost divider clip and sequentially further outwardly in sequentially lower vertically spaced divider clips.

18. The cable distribution shelf according to claim 11, wherein the bending radius of said controlled bend clips is greater than 1.25 inches.

19. The cable distribution shelf according to claim 11, wherein said divider clips each comprise 10 laterally spaced slots defined by said outwardly extending finger elements.

20. The cable distribution shelf according to claim 11, wherein said front bay of said housing defines an aperture in each opposing side thereof adjacent the bottom of said housing, and an output cord support clip is provided in each aperture and each of said support clips comprises an outwardly and downwardly extending arcuate ramp portion.