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2 pulse Positive to single negative out

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=67981
Printed Date: July 18, 2025 at 3:08 PM


Topic: 2 pulse Positive to single negative out

Posted By: bulldog65
Subject: 2 pulse Positive to single negative out
Date Posted: December 08, 2005 at 4:06 PM

I have an old 55t2T and cannot find the remotes.  The unit has a (-) Activation Input wire that I want to use to Remote Start the vehicle using the factory remote.  So I am wanting to convert the positive pulse from the Lock wire to a negative pulse and send the signal to the 552t upon 2 pulses.  Can this be done? A diagram or details would be much appreciated.  Thanks



Replies:

Posted By: boomer_106
Date Posted: December 08, 2005 at 9:46 PM

Check out this thread. It sounds like you guys are trying to do the same thing.

https://www.the12volt.com/installbay/forum_posts.asp?tid=67885&tpn=1




Posted By: hotwaterwizard
Date Posted: December 08, 2005 at 10:25 PM
posted_image

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



Posted By: bulldog65
Date Posted: December 09, 2005 at 8:54 AM
Is this a correct diagram?

posted_image



Posted By: KPierson
Date Posted: December 09, 2005 at 1:49 PM
My company makes a module that will convert two positive pulses (within 1.5 seconds of each other) in to a (-) 100mA output.  The default pulse lasts ~10 seconds but it can be adjusted.  However, this route would be much more expensive (~$30) then going with a couple of relays and a few components.

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Kevin Pierson


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