Patent ID: 8705921

Claim:
A fiber optic cable, comprising: a subunit, comprising: a subunit jacket defining a passageway interior thereto, wherein the subunit jacket is an indoor jacket comprising a flame-retardant jacketing; an optical fiber extending through the passageway; and a first reinforcement material constraining the optical fiber within the subunit jacket such that the optical fiber and the subunit jacket are coupled to one another by way of the first reinforcement material, wherein the first reinforcement material is at least one of so positioned and non-rigid in bending such that the subunit has essentially no bend preference; and an outer portion of the fiber optic cable, comprising: an outer jacket defining an outer periphery of the cable, wherein the outer jacket is an outdoor jacket comprising medium- or high-density polyethylene; and a second reinforcement material between the outer jacket and the subunit jacket, whereby removal of the outdoor jacket and the second reinforcement material converts the fiber optic cable to an indoor cable, wherein the second reinforcement material is at least one of so positioned and non-rigid in bending such that, in combination with the subunit, the fiber optic cable has essentially no bend preference; wherein the second reinforcement material comprises fiberglass yarn, and wherein hoop stress applied to the fiberglass yarn by the outer jacket constrains the fiberglass yarn between the subunit and the outer jacket such that the fiberglass yarn is held in position and oriented to provide anti-buckling support to the fiber optic cable and thereby mitigate effects on the optical fiber of jacket shrinkage due to low temperatures experienced by the fiber optic cable.