Abstract: An optical fiber rack includes a rack part on which a plurality of termination units arranged in a vertical direction are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers connected with each of the plurality of termination units are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the termination units is housed, and a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part.

Abstract: A termination unit located on a rack part of an optical fiber rack includes a housing a plurality of first optical fibers located in the housing, the plurality of first optical fibers being fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, an adapter group including a plurality of adapters in a line in the housing, the plurality of adapters being respectively connected to the plurality of first optical fibers on an inside of the housing and being respectively connected to a plurality of second optical fibers on an outside of the housing, and an optical fiber passing part through which at least one optical fiber is configured to pass, the optical fiber passing part being located in at least one of: the adapter group, and between the housing and the adapter group in an arrangement direction.

Abstract: A termination unit to be located on a rack part of an optical fiber rack includes a housing, a plurality of first optical fibers located in the housing and fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, a plurality of external connection adapters located in a line in a first direction, and in which the plurality of first optical fibers are respectively connected to the plurality of external connection adaptors on an inside of the housing, a guide part located on one side surface of the housing crossing the first direction, and extending in a second direction crossing the first direction, and a fixing member attached to the one side surface of the housing, and to which the multi fiber cable is fixed. The fixing member is movably attached along the guide part.

Abstract: An optical fiber rack includes: a rack part on which a plurality of termination units arranged along an up-down direction are located; an optical fiber housing part which has a back plate and in which an extra length wiring part in a plurality of optical fiber bundles connected to each of the plurality of termination units is housed; and a plurality of first dividing bodies for dividing locations of the optical fiber bundles in the optical fiber housing part, the plurality of first dividing bodies being attached to the back plate so as to be arranged along the up-down direction in the optical fiber housing part. The first dividing body has a holding part for holding the corresponding optical fiber bundle, and the holding part of the first dividing body provided lower in the up-down direction is positioned to be separated from the back plate.

Abstract: An optical fiber rack includes a rack part on which a termination unit is located, and an optical fiber housing part for housing an extra length wiring part in an optical fiber bundle, the optical fiber housing part being positioned in a first direction. The termination unit includes a plurality of first optical fibers, a ay provided on one end side of the termination unit in a second direction, the tray being slidable in the second direction, and a plurality of adapters which are arranged in a line on the tray. The tray has a first support part for supporting the optical fiber bundle, the optical fiber rack further includes a second support part arranged in the second direction with respect to the first support part, and the second support part stretchably supports the optical fiber bundle extending from the first support part to the optical fiber housing part.

Abstract: A bracket for attaching an optical unit to a rack is provided. The bracket comprises a bracket body and a fastener. The bracket body has a first wall including a first face and a second face opposite to the first face, and a protrusion extending in a direction intersecting with the first wall from the second face against the first face. The bracket body is provided with a hole penetrating through the first wall from the first face to the second face. The fastener is arranged to pass through the hole on the first wall and is configured to be rotatable with respect to the first wall. The fastener has a first hook including a holding surface substantially parallel to the second face. The holding surface of the first hook faces the second face to define a first gap between the holding surface and the second face of the first wall at least when the fastener rotates from an initial position to a first locking position.

Abstract: An optical fiber rack includes a rack part on which a plurality of termination units arranged in a vertical direction are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers connected with each of the plurality of termination units are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the termination units is housed, and a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part.

Abstract: A tray unit includes: a plurality of trays each of which has a protrusion at a side end portion thereof; and a pair of frames vertically provided with a plurality tiers of rail portions, the plurality of tiers of rail portions accommodating the plurality of trays in a slidable manner in a horizontal direction. And the rail portion at each tier include a clamp on a surface facing the side end portion of the tray, the clamps in the plurality of tiers are aligned in a vertical direction, the clamp has an opening to which the protrusion is fittable, and when the side end portion of the tray move to a predetermined position with respect to the rail portion, the clamp is elastically deformed in the vertical direction of the rail portion, and the protrusion is fitted into the opening.

Abstract: A termination unit to be located on a rack part of an optical fiber rack includes a housing, a plurality of first optical fibers located in the housing and fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, a plurality of external connection adapters located in a line in a first direction, and in which the plurality of first optical fibers are respectively connected to the plurality of external connection adaptors on an inside of the housing, a guide part located on one side surface of the housing crossing the first direction, and extending in a second direction crossing the first direction, and a fixing member attached to the one side surface of the housing, and to which the multi fiber cable is fixed. The fixing member is movably attached along the guide part.

Abstract: A termination unit located on a rack part of an optical fiber rack includes a housing a plurality of first optical fibers located in the housing, the plurality of first optical fibers being fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, an adapter group including a plurality of adapters in a line in the housing, the plurality of adapters being respectively connected to the plurality of first optical fibers on an inside of the housing and being respectively connected to a plurality of second optical fibers on an outside of the housing, and an optical fiber passing part through which at least one optical fiber is configured to pass, the optical fiber passing part being located in at least one of: the adapter group, and between the housing and the adapter group in an arrangement direction.

Abstract: An optical fiber rack includes a rack part on which a plurality of termination units are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the plurality of termination units is housed, a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part, and, a plurality of optical fiber guides attached to the partition plate and arranged in the vertical direction. The optical fiber guide comprises a first guide part housing the first optical fibers toward to the first optical fiber housing part, and a second guide part housing the second optical fiber passing through an opening provided in the partition plate.