alarm on siren off
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=108223
Printed Date: May 14, 2024 at 7:30 PM
Topic: alarm on siren off
Posted By: xavier213
Subject: alarm on siren off
Date Posted: October 17, 2008 at 11:47 PM
Hi
I am trying to keep my alarm on but turn my siren off with a momentary switch and then have it reset…. I need this because 1 if I had a on/off switch I would forget to turn it on 2 I need to turn it off at work… trains pass my car all day and the alarm goes off 3-4 times
Replies:
Posted By: i am an idiot
Date Posted: October 18, 2008 at 12:48 AM
A momentary switch will only turn it off as long as you are holding the button down.
Posted By: xavier213
Date Posted: October 18, 2008 at 9:43 AM
ok...... so any ideas on how i can do what i want to do
Posted By: xavier213
Date Posted: October 18, 2008 at 10:27 AM
i was thinking of using a set up like this 
Posted By: carguy411
Date Posted: October 18, 2008 at 2:25 PM
what alarm u have some of them you can temp by pass the shocksensor so you wont have that problem.
if not y not just put a switch in line with the siren wire and switch it off when u leave and switch it back when u get in the car
Posted By: xavier213
Date Posted: October 18, 2008 at 6:15 PM
dont know what alarm it is i will get you that info asap... yeah i will just put a switch inline but i know i will for get to turn it on and my alarm has autoarm and i am inside by time itr arms.... i know i am making things hard nowv but easy for me later on
Posted By: dualsport
Date Posted: October 23, 2008 at 12:20 AM
You probably won't want to use regular mechanical relays to do this because one of the positions will have to draw power while the car is parked.
If your alarm doesn't have provisions to temporarily turn off the shock sensing, you could do it with some electronics to toggle between the two modes. Should be pretty easy if you have some experience with that.
Posted By: megaman
Date Posted: October 23, 2008 at 8:38 AM
You will want to disable the shock sensor, not the siren. The reason being, if you arm the system, even with the siren off, the train will set off the alarm, and your car will sit with the lights flashing. The lights draw far more current than the siren, so essentially it could drain your battery.
Posted By: xavier213
Date Posted: October 23, 2008 at 7:30 PM
Thanks for all you help i think i am just going to use a switch
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