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SIMPLE SCHEME OF SECURITY SIGNALING OF APARTMENTS, COTTAGES, GARAGES

SIMPLE SCHEME OF SECURITY SIGNALING OF APARTMENTS, COTTAGES, GARAGES

When the voltage is turned on 220 V (S1 is closed), the power supply to the step-down transformer and the electric siren is supplied. The "Alarm on" light comes on and the rectifier starts working. The "Alarm" light on the alarm panel does not light, because contact P12 is open. The electric siren does not work. contact P13 is open. In the initial position, all contacts K1, K2, P11, MB1, MB2, etc. are opened (buttons K1, K2 are not pressed, and gates, doors, windows, etc. are closed). Pressing the K1 button on the alarm panel energizes the relay P1, which is triggered, self- blocked by P11, and P12, P13 supplies power to the   the "Alarm" light on the alarm panel and the electric siren (the siren sounds). This test indicates the operability of the alarm panel. By pressing the K2 button, which is located in the garage, or opening the gate, doors, windows, etc. The "Alarm" light comes on and the siren sounds. This test indicates the operability of the entire line in the garage and its contacts ( microswitches ) of gates, doors, windows, etc. If the thief again closes the gate, door, window, etc., when the alarm is triggered, the alarm will come on until the voltage is removed 220 V (off S1).

The circuit is assembled in a small box (console), which is located in the house. The wires of the alarm line in the garage must be held covertly.

S1                           - switch of any type for 220 v.

Tr.1                        - step-down transformer for 12-30 in .

D 1 , D 2                   rectifying diodes.

C1                           - Electrolytic capacitor per 100-1000 microfarads .

P 1                           - a relay with self-locking contacts and two contacts for a short circuit.

L 1 , L 2                    - signal lamps for voltage, which provides III winding transformer.

K 1 , K 2                    - buttons for checking the operability of the alarm.

MB 1 , MB 2 , etc. - Microswitches (closers) at the gates, doors, windows, walls (in the garage).

EC                          - electric siren (bell) of any type for 220 v.