A seal for an opening of a bore in a component, with a threaded screw, around a core shaft of which a helical screw thread is arranged. A microcontroller of the peripheral device is used to respond to a standard request for basic device information from a computing system. At this time, it is necessary to maintain continuity of speech signals after speech decoding. The central timing module measures the propagation delay based on the clock cycles of the local clock counted before the return signal is generated and the period of the local clock. Thereby, a confirmation sound with a tone corresponding to the equipment identification information is generated as a ring alert sound.