| http://www.w3.org/ns/prov#value | - However, when the logic input into the inhibit port 127 changes to a logic value of 0, (as when the logic value on line 114 changes to 0), the oscillator/divider 120 provides an alarm signal (such as a square wave output having a frequency in the audible range, e.g. 2500 Hz), on line 126 to drive the second audio transducer 22.
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