switch on relay when alarm disarms

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=106527
Printed Date: May 10, 2025 at 11:08 PM

Topic: switch on relay when alarm disarms

Posted By: spaspecker
Subject: switch on relay when alarm disarms
Date Posted: August 02, 2008 at 11:25 AM

had a good search round for this, can't really find a definitive answer.

What I'm wanting to do is have a relay energise when I disarm my alarm and stay energised until the ignition is turned on, then I want it to switch off.

anybody?

Replies:

Posted By: JWorm
Date Posted: August 02, 2008 at 3:08 PM

On most alarms, the domelight supervision output will stay on for 30 seconds after the alarm is disarmed, and will shut off once the ignition is turned on. What are you trying to do?

Posted By: spaspecker
Date Posted: August 02, 2008 at 5:04 PM

I'm trying to energise a relay on disarm that will switch off when the ignition is switched on, it's for a lighting project and for a car alarm that doesn't have domelight supervision

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