@▷ Safer Security Alarm diagram | Diagram for Schematic

Safer Security Alarm diagram

This is not an original security system alarm circuit. The circuit which use three output switch connections, claimed to be safer system alarm than other alarm circuits.

Schematic Diagram:

Safer security alarm schematic diagram 300x162 Safer Security Alarm diagram

A Many security systems use a closed loop of wires and switches arranged so that whenever a door or window is opened, the loop will be broken and the alarm will sound. An obvious problem is that someone can tamper with the system, short out the loop, and later on, come back and burglarize the premises without sounding the alarm. Hiding a known resistance in the loop, as you propose, is a very good idea. That way, the alarm can distinguish a short circuit from a correctly functioning closed loop.

Follow this Security System Alarm circuit page for more explanation about it.

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