An optical fiber cable includes: a core including optical fibers; a reinforcing wrap that surrounds the core; and a sheath that accommodates the core and the reinforcing wrap. The reinforcing wrap includes an overlapping portion. A first end portion of the reinforcing wrap overlaps a second end portion of the reinforcing wrap at a portion of the reinforcing wrap in a circumferential direction of the optical fiber cable in a cross-sectional view.

Disclosed herein are preconnectorized cable assemblies and methods of making by cable segmentation. One method includes making cable assemblies by adding jacket segments around a cable bundle including a plurality of cable units having at least one optical fiber, and then attaching the plurality of jacket segments together. Another method includes making cable assemblies by inserting jacket segments between base jacket portions. The method includes circumferentially cutting a ring cut in a base jacket surrounding a cable bundle having a plurality of subunit cables with at least one optical fiber. An insert jacket segment is then positioned around the cable bundle and inserted within an access window in the base jacket. The insert jacket segment is joined along a longitudinal slit and ends of the insert jacket segment are attached to the base jacket. A subunit cable of the cable bundle extends through the first side opening.

An optical fiber cable includes: a core including optical fibers; an interposed layer including fibers wound around the core in an SZ shape; a reinforcing layer including metal and covering the interposed layer; and a sheath covering the reinforcing layer.

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.

An optical fiber ribbon that includes 16-48 parallel optical fiber core wires and a connecting resin that connects adjacent optical fiber core wires. The outer diameter D of the optical fiber core wires is 160-220 μm, and when N is the number of optical fiber core wires and S is the bending strain of the optical fiber core wires, S=0.167×N/2(%) or less.

A cable that protects an object includes: a sheath; and a cylindrical reinforcement member disposed inside the sheath and that surrounds the object. The cylindrical reinforcement member has a first side edge and a second side edge that extend in a longitudinal direction. The cylindrical reinforcement member is formed of a cable reinforcement sheet including: a first metal sheet; and a second metal sheet joined to the first metal sheet. A portion of the first metal sheet overlaps a portion of the second metal sheet, and the overlapping portions define a joint portion where the first metal sheet and the second metal sheet are joined. The joint portion is inclined, from the second side edge to the first side edge, toward the first metal sheet.

A communication cable is provided that retains low signal attenuation even after multiple cycles through significant temperature changes. The cable includes a communication element, a tight buffer element that surrounds the communication element, a strengthening element that surrounds the tight buffer element, an inner jacket that surrounds the strengthening element, and an outer jacket that surrounds the inner jacket. The outer jacket protects the interior components and is made of a hard material, and the inner jacket protects the communication element from the mechanical stresses of temperature-induced thermal expansion and contraction of the outer jacket.

An optical fiber cable production method includes: feeding a core including optical fibers; winding a reinforcing wrap around the core and forming an overlapping portion in which end portions of the reinforcing wrap overlap each other at a portion of the reinforcing wrap in a circumferential direction; and performing extrusion molding of a sheath on an outside of the reinforcing wrap. The overlapping portion extends in a longitudinal direction of the optical fibers. In the performing extrusion molding, a resin that forms the sheath is inserted into a portion of the overlapping portion.

An optical cable traction terminal structure includes: a helically wound inner tube that houses an optical cable; and a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube.

An optical fiber cable that includes subunits is provided. Optical fiber cables are used to transmit data over distance. Generally, large distribution cables that carry a multitude of optical fibers from a hub are sub-divided at network nodes into subunits. To furcate the subunits, the respective jackets of the subunits must balance many different characteristics, including flexibility, temperature tolerance, and safety properties.