Print Page | Close Window

pin switches and ultrasonic protection

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=25435
Printed Date: July 14, 2025 at 6:40 AM


Topic: pin switches and ultrasonic protection

Posted By: j.a.kelly
Subject: pin switches and ultrasonic protection
Date Posted: January 28, 2004 at 1:45 PM

My fairly basic alarm has a ground trigger wire for pin switches, and interior ultrasonic protection.

However I cannot connect my pin switches and ultrasonics together, as it disables my ultrasonics.

On here it says about diodes but i know nothing about them, can i acheive what i want by using a relay and avoiding diodes??

If not could someone please shed some light on the diode situation, n what type i would need??

Thanks very much in advance!



-------------
Thanx 4 your time



Replies:

Posted By: jrilla
Date Posted: January 28, 2004 at 2:31 PM
The diode section on this website will shed some light on them.

if you have 2 negative trigger zones and only one input wire on the alarm, 2 diodes will isolate the two circuits from each other. Put the band on the diode on the side of the sensor.

A 1N4001 diode will suit you just fine.

-------------
J Rilla

Owner/Installer


Print Page | Close Window