Methods and apparatus for sending system information associated with media directed to a device are disclosed. The glovebox apparatus includes a first module for releasably covering a first sidewall opening. A basic inputoutput system sets the status bit prior to initialization and clears the status bit after initialization. This method also removes noise owing to its level sensing and width comparison techniques which have not been used in conventional digital communication systems. A guide element is adapted to movably support the optical fiber in a position spaced away from the working region, and limit lateral movement of the tip without preventing longitudinal and rotational movement.