Patent ID: 6984074

Claim:
A fiber optic connector assembly, comprising: an outer connector housing having a front mating end, a rear end and a through passage extending between the ends and defining an optic axis, the housing having a first key in the passage at a given position angularly about the optic axis; an inner optical fiber plug for terminating at least one optical fiber of a fiber optic cable, the plug being disposed in the through passage in the housing with a front ferrule portion of the plug terminating the optical fiber at the front mating end of the housing, with the fiber optic cable extending from the rear end of the housing; and a partial key ring rotatably mounted about the plug and fixable on the plug at selected positions of rotational adjustment, the key ring having a second key lockable with the first key on the housing once the key ring is fixed on the plug, the partial key ring configured to enable the plug to be inserted only at a predetermined angle of rotation; wherein the plug can be rotated to the optimum position of angular adjustment of the optical fiber relative to the optic axis, the key ring can be fixed to the plug with the second key on the key ring aligned with the first key on the housing, and the keys can be locked to fix the angular position of the plug relative to the housing.