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testing ground??

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=10832
Printed Date: August 06, 2025 at 11:19 PM


Topic: testing ground??

Posted By: Anthony1
Subject: testing ground??
Date Posted: March 13, 2003 at 6:58 AM

 hi guys, I want to test a led scanner on my 12 volt dc home adapter.  Just wondering what should I do with the 3 rd wire (yellow) to see if it will trigger the led on/off???  Here is where I put the wires on the 12v dc adapter red in on the posotive , black on the negative.  So far this makes the scanner light up when I push the button on the scanner.  But what can I do with the yellow wire to see if the alarm will activate on its own, and keep the pattern?

THANX




Replies:

Posted By: JWorm
Date Posted: March 13, 2003 at 8:22 AM
put it to ground



Posted By: Anthony1
Date Posted: March 14, 2003 at 8:20 AM
 Thanx for the e-mail.  I guess this means I can not try it at home. message sent: (home electrical wiring there is no negative or posotove ground as such.  household wiring if ac (alternating current)  It changes dirrection every 60 times a second.  IN modern household wiring there are 3 conductors, as grounded conductor (aka neutral) a ungrounded conductor(hot) and the equipment grounding conductor.  IN all cases using the adapter would mean you are dealing with alternating current.  the equipment grounding conductor (ground) is either bare or green, but not negative or posotove, but neautral.


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