A multi-purpose sealing device is described herein for use in a port structure of fiber terminal, telecommunication enclosure; or a bulkhead. The exemplary sealing device has a body having an open end and a closed end, wherein the closed end includes a removable portion and a pulling device to facilitate removal of the exemplary sealing device from a port structure. In one aspect, the exemplary sealing device is a single part made of a resilient material, while an alternative aspect, the exemplary sealing device includes a rigid connection portion disposed within the open end of the body. The exemplary device can be used as a dust cap or plug prior to making a service connection and/or it can be used as a port/cable sealing device after the service connection is made.

An optical communication cable subassembly includes a cable core having optical fibers each comprising a core surrounded by a cladding, buffer tubes surrounding subsets of the optical fibers, and a binder film surrounding the buffer tubes. Armor surrounds the cable core, the binder film is bonded to an interior of the armor, and water-absorbing powder particles are provided on an interior surface of the binder film.

A process and system for making a water resistant cable component and water resistant cable components are provided. The water resistant cable includes a cable body including an inner surface defining a channel within the cable body and an elongate cable component located within the channel of the cable body. The cable also includes a contiguous layer of crosslinked super absorbent polymer surrounding the elongate cable component. The layer of crosslinked super absorbent polymer is formed by applying a liquid layer including a carrier material and an uncrosslinked super absorbent polymer pre-polymer material onto an outer surface of a component of the cable and then by crosslinking the super absorbent polymer pre-polymer while on the cable component to form a layer of crosslinked super absorbent polymer surrounding the cable component.

Embodiments of an optical fiber cable are provided. The optical fiber cable includes a cable jacket and a plurality of buffer tubes contained within the cable jacket. Each of the plurality of buffer tubes has one or more optical fibers disposed therein. A thin film tube is contained within the cable jacket and disposed around the buffer tubes, and an armor layer is contained within the cable jacket and disposed around the thin film tube. Superabsorbent polymer (SAP) powder is disposed between the thin film tube and the armor layer. The SAP powder includes at least 1 wt % of silica particles.

The present disclosure relates to a fiber optic cable that includes a plurality of internal optical fibers and a fiber optic cable portion. The fiber optic cable portion includes an outer jacket and an inner conduit, the inner conduit containing the plurality of optical fibers disposed therein. The fiber optic cable further includes a flexible conduit portion, wherein the flexible conduit portion has a proximal end and a distal end. The proximal end is secured to the fiber optic cable portion and the distal end has a terminating device. The terminating device at least partially encases the flexible conduit portion, and the plurality of optical fibers passes through the flexible conduit portion and the terminating device.

A fiber optic connection assembly for fiber to the home, comprising: a fan-out member; a multi-fiber optical cable having a first end introduced into the fan-out member and a second end extending out of the fan-out member; a multi-fiber optic connector connected to the second end of the multi-fiber optical cable; a plurality of single-fiber optical cables each having a first end introduced into the fan-out member and spliced with a respective one of fibers of the multi-fiber optical cable and a second end extending out of the fan-out member; and a plurality of single-fiber optic connectors connected to the second ends of the single-fiber optical cables, respectively; a plurality of first fiber optic adapters mated with the plurality of single-fiber optic connectors, respectively; and a plurality of outer shields each constructed to receive the connector and the adapter of a respective single-fiber optical cable therein, wherein the outer shield is hermetically fitted on the connector and the adapter of the respective single-fiber optical cable to form a sealed inner chamber so as to prevent moisture or water from entering into the inner chamber.

An optical fiber cable may include a cable jacket, a central tube within the cable jacket, optical fibers within the central tube, and a number of semi-rigid rods around the central tube. Each rod may have a cross-sectional shape with an aspect ratio of at least 2:1. The rods may be helically applied around the central tube.

Fiber pistoning apparatus and methods of use are provided. A fiber anti-pistoning apparatus includes an axial centerline, and an elongate main body that at least partially surrounds the axial centerline and extends from a first end to a second end of the elongate main body. The elongate main body defines a channel that extends along the axial centerline for housing a bundle of fibers. The channel extends between a first opening at the first end, a second opening at the second end, and a slotted opening between the first end and the second end for receiving the bundle of fibers. The elongate main body includes one or more retention features for coupling to a first buffer tube.

A cable includes a cable core including a central strength member. A plurality of buffer tubes, with each buffer tube including a plurality of optical fibers therein, and a plurality of filler rods are stranded about the central strength member. A characterizing feature is that a diameter of each of the plurality of filler rods is larger than a diameter of each of the plurality of buffer tubes. A jacket surrounds the cable core.

It is disclosed an optical fibre unit for air-blown installations comprising: a first group of optical fibres embedded in a resin layer; a sheath arranged in a radially outer position with respect to the resin layer so that an annular space is formed between resin layer and sheath; and a second group of optical fibres arranged in the annular space. Also disclosed are an apparatus and a method for manufacturing such optical fibre unit.