Subsurface fibre optic cable network installation

G - Physics – 02 – B

Patent

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Details

G02B 6/50 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2438488

A method of installing fibre optic cables consists of cutting a shallow and narrow trench or channel within a road surface or building wall. A narrow fibre optic cable is laid within the channel, and subsequently covered with a patch material. A branching cable network is provided by cutting at periodic and selected locations, a slightly broader and deeper region of the channel, within which cable loops and/or junction boxes are installed. The nodes may consist of branching nodes, or alternatively non-branching nodes containing a cable loop and/or junction box, the installation of which at a location permits a junction node to be formed at a close by location. The invention also consists of a junction box and cable winder for use with the system, as well as a method of installing fibre optic cables in soil using a slotted member to protect the cables in the trench.

L'invention concerne un procédé d'installation de câbles à fibres optiques, consistant à creuser un sillon ou un canal de faible profondeur et de faible largeur à la surface d'une route ou d'un mur d'un bâtiment, à déposer un câble à fibres optiques étroit dans le canal, puis à recouvrir le câble à l'aide d'un matériau de recouvrement. Ce procédé consiste également à former un réseau de branchement selon une technique consistant à creuser, à des emplacements espacés sélectionnés, une zone légèrement plus large et plus profonde dans le canal, dans laquelle des boucles de câbles et/ou des boîtiers de raccordement sont installés. Les noeuds peuvent être des noeuds de branchement ou éventuellement des noeuds sans branchement, renfermant une boucle de câble et/ou un boîtier de raccordement, l'installation de ces noeuds à un emplacement précis permettant de former un noeud de raccordement à un emplacement rapproché. L'invention concerne également un boîtier de raccordement destiné à être utilisé avec ce système.

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