Lucent Technologies Inc.

Specified Technologies Inc.

Neal Anthony Janus

Randy Alan Reagan

Anthony Pellegrino

William Joseph Parzygnat

Richard Joseph Pimpinella

James P Stahl, Jr

Frank Salvatore Leone

Julio Lopes

Paul Gandolfo

Steven Faiello

Elwood Horace Green, Jr

A firestopping apparatus including a housing defined by first and second housing members. Each housing member includes a width direction wall panel and a height direction wall panel. The width direction wall panel of the first housing member is configured to connect with the height direction wall panel of the second housing member and the width direction wall panel of the second housing member is configured to connect with the height direction wall panel of the first housing member to define an assembled housing with a through passage. Intumescent material is positioned along an inner surface of each wall panel. A compressible foam is positioned within the intumescent material and substantially closes off the through passage.

Cable tray firestop device

A cable swivel is provided for maintaining optical fiber bend limits at entry portals of a optic fiber shelf for the shelf's entire range of motion, from being fully closed to being fully open. Bend limits are maintained as optical fiber is directed on paths through a shelf entry portal between the shelf interior and wire brackets on the shelf exterior. Fibers are retained, organized and strain relieved by the cable swivel such that directed fiber is maintain at a minimum bend radius on such fiber paths. The curved surface of the cable swivel allows the shelf to be accessed without excessive bending of so routed optical fibers. In this manner, optical signal degradation and/or total loss is avoided by limiting the bending of routed optical fiber to radii in excess of a predetermined minimum bend radius.

Optical fiber cable swivel for fiber optic distribution frames

A cable jumper bend limiter arrangement for a fiber distribution shelf that is readily adaptable for use in conventional fiber distribution frames. The shelf jumper bend limiter arrangement of the invention operates to maintain minimum bend radii for jumpers routed via the shelf and facilitates increased storage and routing space for jumper cables routed in jumper troughs of distribution frames in which the shelves are installed. Radial guides that form the bend limiters for the distribution shelf of the invention are disposed predominantly within the perimeter of the shelf and extend only minimally beyond an edge of the shelf.

Optical fiber jumper cable bend limiter and housing therefor

A fiber optic interconnection combination closure is provided for fashioning optical fiber connections in an enclosed chamber protected from environmental conditions and fiber stress. Fiber splices are fashioned in splice organizers within a closure base assembly. Fiber terminations are fashioned at termination adapters arrayed in a closure chassis. Bend limits for optical fiber are maintained as the fiber is directed on paths in the closure to/from splice organizers, termination adapters, and closure exit portals. Fiber is organized, strain relieved and collected by fiber clips, rings, retainers, and looms positioned such that directed fiber is maintain at a minimum bend radius on such fiber paths. Provided slack storage facilities allow fiber connections to be handled individually without disturbing other connections and/or fibers. Fibers are retained, organized and guided in a path on the closure exterior by attached wire brackets. In this manner, optical signal degradation and/or total loss is avoided by limiting the bending of routed optical fiber to radii in excess of a predetermined minimum bend radius.

Fiber optic interconnection combination closure

A bend limiter/strain reliever is provided for maintaining optical fiber bend limits at exit portals of a optic fiber closure for the closure's entire range of motion, from being fully closed to being fully open. Bend limits are maintained as optical fiber is directed on paths through a closure exit portal between the closure interior and wire brackets on the closure exterior. Fibers are retained, organized and strain relieved by the bend limiter/strain reliever such that directed fiber is maintain at a minimum bend radius on such fiber paths. The curved surface of the bend limiter/strain reliever allows the closure to be accessed without excessive bending of so routed optical fibers. In this manner, optical signal degradation and/or total loss is avoided by limiting the bending of routed optical fiber to radii in excess of a predetermined minimum bend radius. Horizontal members separate the bend limiter/strain reliever into compartments and make it easy to isolate fibers so that they may be efficiently traced and removed during system maintenance.

Portal bend limiter/strain reliever for fiber optic closure exit portal

Disclosed is a fiber optic operations center intended for use in a central office which is responsible for the administration, monitoring, testing, and repair of a multiplicity of fiber optic cables entering the central office from subscribers. The operations center is housed in a bay which is arranged to protect fiber optic cables and route then to an optical switch which connects one or more selected cables to a test device which launches and receives optical signals. The test device is under the control of a system controller which has a variety of input and output means which enable craftpersons in the central office and in remote locations to access the operations center.

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Parsippany, NJ, United States of America

Neal Anthony Janus