Patent ID: 6554484
Filing Date: 2003-04-29
Classification: G02B

Abstract:
An optical fiber coupling adapter assembly comprising:an adapter housing having an open receptacle therein for receiving the body portion of a connector plug having a front end from which extends a ferrule, said housing having a rear wall and first and second side walls; a cylindrical member extending from said rear wall into said receptacle for receiving the ferrule of the connector plug, said cylindrical member being spaced from said side walls; a sensing mechanism having first and second states and positioned to be switched by the body portion of the plug from the first state to the second state upon introduction of the connector plug into the receptacle and to be switched from the second state to the first state upon withdrawal of the body portion of the connector plug and to produce an indication of the presence or absence of the connector plug relative to the receptacle; a pivotable shutter member having a front wall for covering the open receptacle and first and second sides, each being pivotably connected to said adapter; said adapter housing having a lower surface; an arm depending from each of said sides and having a distal end extending below said lower surface when said shutter is in a closed position covering said open receptacle; and said sensing mechanism comprising a light emitting diode in the distal end of one of said arms and a light detecting device in the distal end of the other of said arms for detecting light emitted by said light emitting device when said shutter is in the closed position.