Patent ID: 7756383

Claim:
A service blocking device for a fiber optic telecommunications, the device comprising: a body with a first end and a second opposing end; the first end configured for insertion within an opening of a fiber optic adapter, the first end including a keying feature for engaging an alignment structure of the fiber optic adapter; the second end configured to receive a fiber optic connector terminating an end of a fiber optic cable, the service blocking device including a mating structure adjacent the second end for mating with the fiber optic connector, the mating structure including a flexible portion with a first catch, wherein the flexible portion is configured to deflect for latching the first catch with a second catch of the fiber optic connector, the second catch defined by a recess on a body of the fiber optic connector; the body of the service blocking device configured so that the fiber optic connector is held generally coaxially aligned with the opening of the fiber optic adapter when the first end of the body of the service blocking device is within the opening of the adapter and the second end of the body of the service blocking device is positioned about the fiber optic connector; the body of the service blocking device defining an optically opaque light path between the first end and the second end to prevent light from passing through the body of the service blocking device.