5 Zone Alarm System [Deleted]

[ElectroMaster]

ElectroMaster submitted a new article:

5 Zone Alarm System - Each zone uses a normally closed contact. These can be micro switches or standard alarm contacts (u

Each zone uses a normally closed contact. These can be micro switches or standard alarm contacts (usually reed switches). Zone 1 is a timed zone which must be used as the entry and exit point of the building. Zones 2 - 5 are immediate zones, which will trigger the alarm with no delay. Some RF immunity is provided for long wiring runs by the input capacitors, C1-C5. C7 and R14 also form a transient suppresser. The key switch acts as the Set/Unset and Reset switch. For good security this should...

Read more about this article...

 

[madanraj.k]

very nice and thanks for good one.

 

[ElectroMaster]

This resource has been removed and is no longer available.

 

[christianarmand]

elegant!