A fiber optic enclosure system comprising: an enclosure defining an enclosure chamber, the enclosure including an end plate having an insert hole; a plurality of fiber optic adaptors arranged on the enclosure, each fiber optic adaptor including first and second ports (144, 146) configured to receive fiber optic connectors, the first port accessible from an outer side of the enclosure and the second port accessible from an inner side of the enclosure; characterised by further comprising a drawer for anchoring and managing a pass-through cable that passes through the enclosure, the drawer being removably inserted through the insert hole of the end plate and received within the enclosure chamber, the drawer including: a face plate including a plurality of cable ports through which the pass-through cable is received onto the base plate, the face plate configured to engage the insert hole of the enclosure when the drawer is inserted in the enclosure chamber; an anchoring device for anchoring jacketed portions of the pass-through cable; and a fiber loop guide defining a fiber management loop at which an unjacketed portion of the pass-through cable is stored in a looped configuration, wherein the pass-through cable can be anchored to the drawer and the unjacketed portion of the pass-through cable can be stored in the looped configuration at the fiber management loop before the drawer is inserted into the enclosure chamber. an enclosure defining an enclosure chamber, the enclosure including an end plate having an insert hole; a plurality of fiber optic adaptors arranged on the enclosure, each fiber optic adaptor including first and second ports (144, 146) configured to receive fiber optic connectors, the first port accessible from an outer side of the enclosure and the second port accessible from an inner side of the enclosure; characterised by further comprising a drawer for anchoring and managing a pass-through cable that passes through the enclosure, the drawer being removably inserted through the insert hole of the end plate and received within the enclosure chamber, the drawer including: a face plate including a plurality of cable ports through which the pass-through cable is received onto the base plate, the face plate configured to engage the insert hole of the enclosure when the drawer is inserted in the enclosure chamber; an anchoring device for anchoring jacketed portions of the pass-through cable; and a fiber loop guide defining a fiber management loop at which an unjacketed portion of the pass-through cable is stored in a looped configuration, a face plate including a plurality of cable ports through which the pass-through cable is received onto the base plate, the face plate configured to engage the insert hole of the enclosure when the drawer is inserted in the enclosure chamber; an anchoring device for anchoring jacketed portions of the pass-through cable; and a fiber loop guide defining a fiber management loop at which an unjacketed portion of the pass-through cable is stored in a looped configuration, wherein the pass-through cable can be anchored to the drawer and the unjacketed portion of the pass-through cable can be stored in the looped configuration at the fiber management loop before the drawer is inserted into the enclosure chamber.