High density optical fiber distribution sub-rack

A high density optical fiber distribution sub-rack comprising:

• a chassis for housing a plurality of shelves, the chassis comprising a first shelf storage area and a second shelf storage area placed side by side with each other;
• a first shelf housed in the first shelf storage area, the first shelf having a first internal hollow seat for first connection modules, each of the first connection modules having a plurality of first adapters for interconnection optical fibers, the first connection modules being arranged in the first internal hollow seat of the first shelf at a face of the first shelf, wherein the first shelf is guided so as to be movable towards the external of the chassis by the succession of a translation movement and a rotation movement of the first shelf;
• and
• a second shelf housed in the second shelf storage area, the second shelf having a second internal hollow seat for second connection modules, each of the second connection modules having a plurality of second adapters for interconnection optical fibers, the second connection modules being arranged in the second internal hollow seat of the second shelf at a face of the second shelf, wherein the second shelf is guided so as to be movable towards the external of the chassis by the succession of a translation movement and a rotation movement of the second shelf, wherein the first shelf is guided by a first guided pin that cooperates with a first guiding slot, the first guiding pin being fixed to the chassis inside the first shelf storage area, wherein the first shelf is housed and the first guiding slot being made in the first shelf, and wherein the second shelf is guided by a second guided pin that cooperates with a second guiding slot, the second guiding pin being fixed to the chassis inside the second shelf storage area, wherein the second shelf is housed and the second guiding slot being made in the second shelf.