A photoelectric composite cable and a communication system. The photoelectric composite cable includes an optical unit, an electrical unit, and an outer jacket. The optical unit includes an optical fiber and a ferrule, and the ferrule is sleeved on the optical fiber. The electrical unit includes a wire and a wire jacket, and the wire jacket is sleeved on the wire. The outer jacket wraps outside the optical unit and the electrical unit, and the optical unit and the electrical unit are disposed closely adjacent to each other. An extension direction of the optical unit is consistent with an extension direction of the electrical unit, and at least one convex structure is disposed on an outer wall of the outer jacket.

A gas leak proof corrugated sheath design for reducing friction in an optical fiber cable (100) includes a plurality of ribbons (102) in a plurality of ribbon bundles (104), one or more water swellable yarns (110), a first layer (106), one or more ripcords (108), one or more strength members (112) and a second layer (114). The first layer, surrounding the plurality of ribbon bundles by the second layer having a plurality of ribs (116) and a plurality of grooves (118) to reduce number of contact points between the optical fiber cable and a duct to reduce coefficient of friction between the second layer and an inner surface of the duct.

The present disclosure provides an optical fibre cable (100) with high blowing performance. The optical fibre cable (100) includes a plurality of optical fibres (102), a sheath (104) and one or more strength members (106). The sheath (104) envelops the plurality of optical fibres (102). The one or more strength members (106) are embedded in the sheath (104). The one or more strength members (106) embedded in the sheath (104) provides a blowing ratio to the optical fibre cable (100) in a range of about 20 to 45. The blowing ratio is a ratio of cross-sectional area of the sheath (104) to total cross-sectional area of the embedded strength members (106).

A connector includes a first connector body and a second connector body configured to be coupled to one another. The first connector body has a through hole and a cavity. The through hole and the cavity are configured to receive a shield of a hardline coaxial cable. A first washer is disposed in the first connector body and is configured to permit the shield to be pushed in a first direction through the through hole and into the cavity while resisting movement of the shield in a second direction opposite to the first direction. The second connector body has a through hole and a cavity. The through hole and the cavity of the second connector body are configured to receive a tubular member. A second washer is disposed in the second connector body and is configured to permit the tubular member to be pushed in the second direction through the through hole of the second connector body and into the cavity of the second connector body while resisting movement of the tubular member in the first direction. The second connector body is rotatable relative to the second washer and the tubular member until the second connector body and the first connector body are coupled together to a predetermined degree of tightness.

A cable attachment device for sealing and retaining a communications cable entering a telecommunications closure through an opening defined in the closure is disclosed, the device comprising: a housing having a passage through which the communications cable extends, the housing having a first portion and a second portion; wherein the first portion of the housing is configured to receive a protective tube of the telecommunications cable; wherein the second portion of the housing is configured to engage with the closure; a first seal configured to form a seal between the device and the closure; a second seal configured to form a seal between the interior of the device and the protective tube; a third seal configured to seal between the communications cable and the interior of the device; a first retaining arrangement configured to couple the device to the closure; a second retaining arrangement configured to hold the tube relative to the device; and a third retaining arrangement configured to fix the telecommunications cable relative to the device.

A method and reel design enables blowing cable from a reel into a mid-span access point within a cable conduit. The cable reel includes a central hub, a first flange located proximate one edge of the central hub, a second flange located proximate an opposite, second edge of the hub, and a third flange located between the first and second flanges. A continuous communications cable has first and second portions spooled on first and second reel sections. The technician inserts a first end of the communications cable into a mid-span opening in the conduit, so that the first end of the communications cable is directed toward the first end of the conduit. The first portion of cable is blown off of the first reel section. The technician inserts a second end of the communications cable into the opening in the conduit so that the second end of the communications cable is directed toward the second end of the conduit. The second portion of cable is blown off of the second reel section. Then, a mid-portion of the communications cable is separated from the third flange of the cable reel and resides proximate the opening in the conduit.

A unit that houses tracking electronics configured to be passed through a duct while the tracking electronics collect position information is provided. The information collected by the unit is used to map the duct. A method of mapping a duct is also provided.

Aspects of this disclosure relate to a cable that includes an outer housing, a plurality of optical fibers within the outer housing and arranged side-by-side along the width of the cable; and a removably attached access layer within the outer housing.

A fibre optic accessory for attachment to the end of an optical fibre is described, the fibre optic accessory comprising a plurality of grooves extending longitudinally along a portion of its outer surface. Using this accessory, an optical fibre to which this accessory is affixed may be installed in an installation tube with the use of a source of compressed air. A kit of parts for such an installation, an optical fibre and a method of installation are also described.

There are described methods and systems for deploying optical fiber within a conduit. In one aspect, an optical fiber injector comprising a pressure vessel having a fluid inlet and a fluid outlet. The fluid outlet is engaged with an open end of the conduit. A length of optical fiber is provided within the pressure vessel. The optical fiber is then jetted into the conduit by injecting a fluid into the pressure vessel via the fluid inlet. The optical fiber injector is configured such that the fluid is directed from the fluid inlet to the fluid outlet, and urges the optical fiber to move through the conduit, thereby deploying the optical fiber within the conduit. In a further aspect, there is provided a modular assembly comprising a pipeline and a line of two or more conduits arranged end-to-end. Each pair of opposing ends of adjacent conduits is connected together by a separate splice box. The line is positioned along and adjacent to a length of the pipeline.