According to the present example embodiment, the optical fiber sensing system is an optical fiber sensing system being acquired by adding a function of optical fiber sensing to a cable of an optical communication cable system. The optical communication cable system includes the cable including an optical fiber core wire that propagates an optical signal for communication, and a plurality of devices. A function of the optical fiber sensing is a function of, by an interrogator, sending probe light to an optical fiber core wire, detecting backscattered light of the probe light, and performing sensing on environmental information around the cable. The device includes an optical wiring line through which sensing light passes without passing through an optical amplifier.

A method of assembling an optical fiber cable on production casing includes positioning the optical fiber cable against a production casing at a hole of a well site, and affixing the optical fiber cable against the production casing by applying an adhesive to the production casing to secure the optical fiber cable against the production casing. The method further includes applying pressure to the adhesive to adhesively bond the optical fiber cable to the production casing along a length of the production casing while the production casing is being run-in-hole.

An optical cable laying construction set (X) that includes an optical cable (C1) and plugs (P1 and P2). The optical cable (C1) includes an optical fiber which is a refractive index distribution-type plastic optical fiber. The plug (P1) includes a connecting portion connectable to the optical fiber, and an electric connector connectable to an external device, and has a configuration for converting an electric signal into an optical signal. The plug (P2) includes a connecting portion connectable to the optical fiber, and an electric connector connectable to an external device, and has a configuration for converting an optical signal to an electric signal. In an optical cable laying construction method of the present invention, laying construction of the optical cable on site is carried out using the optical cable laying construction set (X).

This optical communication device (1) is provided with a plurality of light-receiving elements (11) and a plurality of optical fibers (12). The plurality of optical fibers each includes a light-incident end portion (12a) for communication light and a light-emission end portion (12b) for communication light. The plurality of light-emission end portions is each arranged near each of the plurality of light-receiving elements. The plurality of light-incident end portions is each configured to be capable of being arranged in a predetermined position in a predetermined direction.

An assembly for pulling, pushing, or blowing a plurality of preterminated fiber optic cables of a multi fiber cable through a duct includes a sleeve, a rod configured to be coupled with the sleeve, and a plurality of dust caps. The sleeve is configured to receive to be coupled with a multi fiber cable and to permit a plurality of preterminated fiber optic cables of the multi fiber cable to pass through the sleeve, and the rod includes a first end configured to be coupled with the sleeve. Each of the plurality of dust caps is configured to be coupled with a ferrule of one of the preterminated fiber optic cables, and each of the plurality of dust caps is configured to be coupled with the rod, thereby coupling the preterminated fiber optic cables with the rod. The preterminated fiber optic cables are configured to be assembled with a fiber optic connector, the deployment assembly has a cross-sectional footprint that is smaller than a cross-sectional footprint of a fiber optic connector that is configured to be assembled with the preterminated fiber optic cable, and the plurality of preterminated fiber optic cables are configured to be pushed, pulled, or blown together through a duct having an inner diameter than is less than a cross-sectional footprint of a fiber optic connector that is configured to be assembled with the preterminated fiber optic cable.

A fiber optic telecommunications device includes a frame and a fiber optic module including a rack mount portion, a center portion, and a main housing portion. The rack mount portion is stationarily coupled to the frame, the center portion is slidably coupled to the rack mount portion along a sliding direction, and the main housing portion is slidably coupled to the center portion along the sliding direction. The main housing portion of the fiber optic module includes fiber optic connection locations for connecting cables to be routed through the frame. The center portion of the fiber optic module includes a radius limiter for guiding cables between the main housing portion and the frame, the center portion also including a latch for unlatching the center portion for slidable movement. Slidable movement of the center portion with respect to the rack mount portion moves the main housing portion with respect to the frame along the sliding direction.

In at least one general aspect, a cable assembly adapted to be installed into a duct by a combination of blowing and mechanical feeding. The cable assembly can include at least one flexible signal transmitting member for transmitting optical signals, a first layer surrounding the at least one flexible signal transmitting member such that at least one signal transmitting member is in touching contact with the first layer, and a second layer arranged outwardly of the first layer. The second layer is a non-thermoplastic layer made of a composition comprising a base material of polyethylene adapted to be cross-linked, whereby the second layer comprises crosslinked polyethylene.

In at least one general aspect, a cable assembly adapted to be installed into a duct by a combination of blowing and mechanical feeding. The cable assembly can include at least one flexible signal transmitting member for transmitting optical signals, a first layer surrounding the at least one flexible signal transmitting member such that at least one signal transmitting member is in touching contact with the first layer, and a second layer arranged outwardly of the first layer. The second layer is a non-thermoplastic layer made of a composition comprising a base material of polyethylene adapted to be cross-linked, whereby the second layer comprises crosslinked polyethylene.

Method and Equipment for Installing a Power Cable in a Deployment Site The present disclosure relates to a method for installing a single power cable span in a deployment site comprising a rail for supporting the single cable span by trolleys, the method comprising the steps of providing a conveyor belt outside of the deployment site, the conveyor belt having a plurality of locations set at a predetermined distance one from the other along a longitudinal movement direction of the conveyor belt and moving integrally with the latter; repeating the following steps until the single cable span reaches a predetermined position while the conveyor belt is moving, positioning a first part of a holder at one of the locations; while advancing the single cable span, laying a portion thereof on said first part of the holder positioned at the location moving with the conveyor belt; connecting a second part of the holder to the first one to lock the cable span portion in between; while the cable span portion locked by the holder is leaving the conveyor belt, removing the first part of the holder from the location moving with the conveyor belt. According to another aspect, the present disclosure relates to an equipment for the installation of a single power cable span in a deployment site.

A device for applying a distribution cabling tape system includes a distribution cabling tape having an adhesive capable of adhering to a concrete or asphalt substrate and a distribution cable. The device includes an endoscope camera, wherein movement of the device in one direction simultaneously applies both the distribution cable and the distribution cabling tape at a location on the substrate viewable by the endoscope camera. A method for registering a cable and a cabling tape into a conduit in a concrete or asphalt substrate includes using an endoscope to view the location at which the cable and cabling tape are applied.