| 摘要 |
<p>The antitheft equipment for vehicles gives an audible or visible signal, actuated immediately and intermittently. The connection between the detector and the warning is by MOS circuits and a relay. The signal is actuated by disconnection of a wire which carries a fixed voltage. When the wire is re-connected to its upply, the alarm signal continues. The alarm is supplied with a time limiter. The relay has a coil (A) fixed on a printed circuit (E). The contact strip (D) is placed on the other face of this circuit.</p> |
