| 摘要 |
The intruder alarm system has an electromechanical switching lock (6), coupled to a distributor, together with a break-in detector (7), and a movement detector (9), with transmission of an emergency call signal via the telephone network. The switching lock has microswitches operated a first time from the inside, to bring the break-in detector into operation and operated a second time, from the outside, for activating the movement detector in addition to, or in place of the break-in detector. Pref a locking bolt within the lock prevents operation of a false alarm in the open position. <IMAGE> |
