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turboneon 
Member - Posts: 37
Member spacespace
Joined: January 13, 2004
Posted: April 15, 2008 at 11:28 AM / IP Logged  
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.
tedmond 
Gold - Posts: 4,610
Gold spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 06, 2007
Location: Ontario, Canada
Posted: April 15, 2008 at 2:20 PM / IP Logged  
sensors are wired parallel with the original wires. YOu will diode isolate the wires from each other for sure.
noobie4life 
Copper - Posts: 80
Copper spacespace
Joined: April 18, 2008
Posted: April 26, 2008 at 8:49 PM / IP Logged  
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?
tedmond 
Gold - Posts: 4,610
Gold spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 06, 2007
Location: Ontario, Canada
Posted: April 27, 2008 at 12:04 AM / IP Logged  
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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