Embodiments of a furcated optical fiber cable are provided. A main distribution cable has optical fibers surrounded by a cable jacket. The optical fibers are divided into at least two furcation legs. A furcation plug is located at a transition point between the main distribution cable and the at least two furcation legs. The furcation plug surrounds at least a portion of the main distribution cable and each of the at least two furcation legs. Optical connectors are provided for each of the at least two furcation legs, and each connector includes optical fibers that are spliced at a splice location to the optical fibers of the connector's respective furcation leg. The splice location is closer to the connector than to the furcation plug. A method of furcating an optical fiber cable and a pulling configuration for the furcated optical fiber cable are also provided.

A system and method for improving the efficiency and effectiveness of installing and pulling microducts through subterranean pathways is provided. The system includes a device that is placed over at least one microduct and secured through tapered screws that enter through the end cap of the body of the device and into at least one microduct. The tapered screw both expands the microduct, pressing it against the inner wall of the body and guide rod, as well as securing the microduct to the cap end of the body. Securing the microducts against seal provides further protection from water, debris, and other contaminants, and the expansion of the microducts provides friction and adherence to the body, aiding in keeping microducts in place. The device further includes a pulling apparatus connected to the device body, allowing it to be connected to a pulling mechanism for installation of the microducts.

A system and method for improving the efficiency and effectiveness of installing and pulling microducts through subterranean pathways is provided. The system includes a device that is placed over at least one microduct and secured through tapered screws that enter through the end cap of the body of the device and into at least one microduct. The tapered screw both expands the microduct, pressing it against the inner wall of the body and guide rod, as well as securing the microduct to the cap end of the body. Securing the microducts against seal provides further protection from water, debris, and other contaminants, and the expansion of the microducts provides friction and adherence to the body, aiding in keeping microducts in place. The device further includes a pulling apparatus connected to the device body, allowing it to be connected to a pulling mechanism for installation of the microducts.

The pipe cable ring clamp (1) comprising a coiled flat clip band (11) provided with transverse slots (111) on which at least one cable holder (4) is attached and comprising the outer coil (112) and the inner coil (113), and a strap lock (12) in which the clip band (11) is fastened, wherein the inner coil (113) of the clip band (11) is slidably mounted in the strap lock (12) and the strap lock (12) includes lock springs (139) coupled to the inner coil (113) of the clip band (11). The lock springs (139) are received in the strap lock (12) along the edges of the clip band (11) outside the contour of its perpendicular projection into the cylindrical surface of the pipe (5), the lock springs (139) are via the inner coil (113) of the clip band (11) coupled by the movable member (127) slidably mounted in the strap lock (12), wherein the movable member (127), on its end opposite to the rear wall (125) of the strap lock (12) is provided with spring stops (129) on which the lock springs (139) rest with one end thereof, while the other ends rest on the rear wall (125) of the strap lock (12) and wherein the movable member (127) is coupled to the inner coil (113) of the clip band (11) by a pusher tongue (133) in the pivotally mounted movable member (127), wherein the movable member (127) is adapted both to fix it in the rear position while compressing the lock springs (139) and to release it using the latch (135) slidably mounted in a vertical direction in the body of the movable member (127). It is also the basis of the series of pipe cable ring clamp installation apparatus invention.

A optical fiber connecting device includes a hollow main body and a dust-proof unit. The hollow main body includes a first hollow inserting portion for insertion of a fiber optic connector, a second hollow inserting portion oppositely of the first hollow inserting portion, and a flange between the first and second hollow inserting portions. The second hollow inserting portion has a threaded outer surface. The dust-proof unit includes a dust-proof sleeve that has a threaded inner surface. The dust-proof sleeve is removably sleeved around the second hollow inserting portion by an inter-engagement of the threaded inner and outer surfaces.

Techniques for reducing interference with sensor (light) signals and measurement in polarimetric fiber optic sensors from undesired effects of current and vibrations on light signals carried in fiber optic cables are presented. A sensor system comprises a first depolarizer associated with a fiber optic cable and in proximity to a light source that provides a light signal to such cable. First depolarizer depolarizes the light signal to produce a first depolarized light signal output to another portion of the fiber optic cable that can be wrapped around or associated with a conductor cable or ground cable. To reduce undesired polarizing effects on the first depolarized light signal due to current or vibrations from the conductor cable or ground cable, the system comprises a second depolarizer that depolarizes the (re)polarized light signal to produce a second depolarized light signal suitable for use in sensing current or voltage after additional processing.

A wiring apparatus for a communication pipeline includes a frame and wheels arranged on the frame in pairs. A control motor for driving the wheels to rotate is arranged on the frame, at least one pair of wheels are rotatably connected to the frame, a recessed wire clamping cavity is arranged on an outer peripheral of the wheel, a channel configured for clamping an optical power cable is formed between two wheels arranged in pairs through the wire clamping cavity, and a hook (on which a wiring can be hung) is arranged at an end of the frame.

An optical module is disclosed. The disclosed optical module may include a retractable structure having a housing and an upper cover. A clip component for connecting to a chassis is arranged within the housing. A release component for controlling the clip component is arranged on the upper cover. More space within the housing can be available for internal components of the optical module.

An optical module is disclosed. The disclosed optical module may include a retractable structure having a housing and an upper cover. A clip component for connecting to a chassis is arranged within the housing. A release component for controlling the clip component is arranged on the upper cover. More space within the housing can be available for internal components of the optical module.

Systems and methods implement furcation tube vacuum assist. A furcation tube is annealed. The furcation tube is inserted into an adapter fitted to a vacuum line. A vacuum is applied to the furcation tube. One or more communication cables are moved through the furcation tube while the vacuum is applied.