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Alarm on a box truck

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=86652
Printed Date: May 29, 2024 at 1:39 AM


Topic: Alarm on a box truck

Posted By: sburban
Subject: Alarm on a box truck
Date Posted: December 04, 2006 at 9:04 PM

I need sone help with this one. I am installing an alarm in a 2005 kenworth truck it has a sleeper the rear door on the box is the double doors the main door has a normaly open trigger on it . My problem is that the customer wants the alarm to be triggered if someone was to go under the truck and cut that single door trigerwire that i have going to the back of the truck 25ft away.. does anyone know of a way to wire the system so that if that single wire is cut it will also set off the alarm..im using a two way alarm sistem ... Thanks



Replies:

Posted By: hotwaterwizard
Date Posted: December 07, 2006 at 9:32 PM

You have plenty of battery power. You could have that switch latch a relay and if the wire is cut it will drop out the power to the relay and trigger the alarm.

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !


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