Telecommunications connection device

Patent metadata

Field	Value
Publication number	US-2016124173-A1
Application number	US-201414896394-A
Country	US
Kind code	A1
Filing date	Jun 9, 2014
Priority date	Jun 7, 2013
Publication date	May 5, 2016
Grant date	—

Abstract

The present disclosure relates to a telecommunications connection device. The device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The device can include optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails. The single-fiber connectorized pigtails can be more flexible than the multi-fiber connectorized pigtail.

First claim

What is claimed is:

1 . A telecommunications connection device comprising:
a housing; a plurality of single-fiber connectorized pigtails that extend outwardly from the housing; a multi-fiber connectorized pigtail that extends outwardly from the housing, the multi-fiber connectorized pigtail being optically coupled with the single fiber connectorized pigtails; and the housing having a planform defining a planform area, the housing defining a through-hole that extends through the housing in a direction transverse to the planform area, the through-hole defining a through-hole area that is at least 5 percent as large as the planform area.

2 . The device of claim 1 , wherein the single fiber connectorized pigtails project outwardly from the housing in a first direction, and wherein the multi-fiber connectorized pigtail projects outwardly from the housing in the first direction.

3 . The device of claim 1 , wherein the single fiber connectorized pigtails include ruggedized single fiber optical connectors and the multi-fiber connectorized pigtail includes a ruggedized multi-fiber optical connector.

4 . The device of claim 3 , wherein the ruggedized single fiber optical connectors include coupling nuts and dust caps that attach to the coupling nuts by threaded connections, the dust caps covering interface ends of the ruggedized single fiber optical connectors, the interface ends including ferrules supporting end portions of optical fibers.

5 . The device of claim 4 , wherein the coupling nuts are rotatably mounted on main bodies of the ruggedized single fiber optical connectors, and wherein seals are mounted around the main bodies that engage the dust caps when the dust caps are covering the interface ends of the ruggedized single fiber optical connectors.

6 . The telecommunications connection device of claim 1 , wherein the multi-fiber connectorized pigtail includes a first cable and a multi-fiber optical connector secured to a free end of the first cable, wherein the single-fiber connectorized pigtails include second cables and single-fiber optical connectors secured to free ends of the second cables, and wherein the second cables are each more flexible than the first cable.

7 . The telecommunications connection device of claim 6 , wherein the second cables have round transverse cross-sectional profiles and the first cable has an elongated transverse cross-sectional profile.

8 . The telecommunications connection device of claim 7 , wherein the second cable have strength members including aramid yarn, and wherein the first cable includes two strength members each including an epoxy rod reinforced by fiber rovings.

9 . The telecommunications connection device of claim 8 , wherein the strength members of the first cable and the strength members of the second cable are anchored to the housing.

10 . The telecommunications connection device of claim 6 , wherein the multi-fiber optical connector includes a threaded coupler adapted mechanically to couple the multi-fiber optical connector to a structure selected from the group consisting of: a mating connector; a fiber optic adapter; and a dust cap.

11 . The telecommunications connection device of claim 6 , wherein the single-fiber optical connectors include threaded coupler adapted mechanically to couple the single-fiber optical connectors to structures selected from the group consisting of: mating connectors; fiber optic adapters; and dust caps.

12 . The telecommunications connection device of claim 6 , wherein the multi-fiber optical connector and the single-fiber optical connectors include environmental seals.

13 . The telecommunications device of claim 1 , further comprising a boot attached to the housing that projects outwardly from the housing, the boot providing bend radius protection to the single-fiber connectorized pigtails, the boot being more flexible than the housing.

14 . The telecommunications device of claim 13 , wherein all of the single-fiber connectorized pigtails are routed through the boot.

15 . The telecommunications device of claim 14 , wherein the multi-fiber connectorized pigtail is not routed through the boot.

16 . The telecommunications device of claim 1 , wherein optical fibers are routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails.

17 . The telecommunications device of claim 16 , wherein the optical fibers include optical splices within the housing.

18 . The telecommunications device of claim 16 , wherein the optical fibers are routed at least partially around the through-hole.

19 . The telecommunications device of claim 18 , wherein the optical fibers are routed at least 90 degrees around the through-hole.

20 . The telecommunications device of claim 18 , wherein the optical fibers are routed at least 180 degrees about the through-hole.

21 . The telecommunications device of claim 18 , wherein the optical fibers are routed at least 270 degrees about the through-hole.

22 . The telecommunications device of claim 18 , wherein the optical fibers are routed at least 360 degrees about the through-hole.

23 . The telecommunications device of claim 18 , wherein the optical fibers are routed between an interior side wall defining the through-hole and an exterior side wall of the housing.

24 . The telecommunications device of claim 1 , wherein the housing has a major front side, a major back side, an exterior side wall that extends between the major front and back sides and along an exterior boundary defining the planform of the housing, and an interior side wall that defines the through-hole and extends between the major front and back sides.

25 . The telecommunications device of claim 24 , wherein the exterior side wall defines a pigtail opening through which the single-fiber connectorized pigtails are routed, and wherein a flexible boot provides fiber bend radius protection to the single-fiber connectorized pigtails adjacent the pigtail opening.

26 . The telecommunications device of claim 25 , further comprising a cable anchoring panel positioned adjacent to the pigtail opening for anchoring strength members of the single-fiber connectorized pigtails to the housing.

27 . The telecommunications device of claim 1 , wherein the through-hole area is at least 10 percent as large as the planform area.

28 . The telecommunications device of claim 1 , wherein the through-hole area is at least 20 percent as large as the planform area.

29 . The telecommunications device of claim 1 , wherein the single-fiber connectorized pigtails are longer than the multi-fiber connectorized pigtail.

30 . The telecommunications device of claim 1 , wherein the single-fiber connectorized pigtails have connectorized ends that are staggered relative to one another.

31 . The telecommunications device of claim 30 , wherein the connectorized ends of the single-fiber connectorized pigtails include single fiber connectors having connector lengths, and wherein a stagger length of the single-fiber connectorized pigtails is at least 50 percent of the connector length.

32 . The telecommunications device of claim 30 , wherein the connectorized ends of the single-fiber connectorized pigtails include single fiber connectors having connector lengths, an

Assignees

• Adc Telecommunications Inc

Inventors

• Kowalczyk Scott C
• Zimmel Steven C
• Brandt James J
• Bran De Leon Oscar Fernando
• Gronvall Erik J
• Smith Trevor D
• Lu Yu
• Anderson David J

Classifications

• G02B6/3885

  Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448) · CPC title

• G02B6/3894

  Screw-lock type · CPC title

• G02B6/3849

  using mechanical protective elements, e.g. caps, hoods, sealing membranes (G02B6/3816 takes precedence; provisionally see H01R13/44) · CPC title

• G02B6/4285

  Optical modules characterised by a connectorised pigtail · CPC title

• G02B6/4429

  Means specially adapted for strengthening or protecting the cables · CPC title