additional sensors
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=103999
Printed Date: April 29, 2024 at 3:41 AM
Topic: additional sensors
Posted By: turboneon
Subject: additional sensors
Date Posted: April 15, 2008 at 11:28 AM
When adding additional sensors to an alarm, do the blue and green wires need to be diode isolated from each other, or can they just be tied together directly?
For rear end shock detection on SUV's, is there a better option than just adding a second shock sensor in the back?
Thanks.
Replies:
Posted By: tedmond
Date Posted: April 15, 2008 at 2:20 PM
sensors are wired parallel with the original wires. YOu will diode isolate the wires from each other for sure.
Posted By: noobie4life
Date Posted: April 26, 2008 at 8:49 PM
Why would you need to diode isolate each sensor? I mean lets say you run 3 sensors into the shock sensor for a total of 4 sensors. The brain would not be able to tell which sensor triggered the alarm, so whats the sense of using diodes? Am I correct on this?
Posted By: tedmond
Date Posted: April 27, 2008 at 12:04 AM
you diode them to prevent backfeed. Some units have individual zone triggers while some dont. You do not want one sensor to be set off, then tell th other sensor to both set off. that will end up burning out your shock or glass brek sensors etc.
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