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» Termpro Audio Forum » Component Specific Topics » Auto Security » Diode isolation?

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Author Topic: Diode isolation?
ED
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If there is nothing else hooked to the ground when armed output of my alarm, will I need a diode?

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Posts: 53 | From: Burlington, IN | Registered: May 2000  |  IP: Logged | Report this post to a Moderator
David McLean
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quote:
Originally posted by ED:
If there is nothing else hooked to the ground when armed output of my alarm, will I need a diode?



No you shouldn't. But you may still need a relay, if the device draws more than 500ma current

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David McLean
Team Quadzilla
http://www.teamquadzilla.com


Posts: 3359 | From: Jacksonville, FL USA | Registered: Sep 1999  |  IP: Logged | Report this post to a Moderator
ED
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In the installation instructions, it says that a relay(611t Latching relay) should only be needed if there is not ground when armed output. But if the security system has one, to jsut connect the black wire to the ground when armed output. By the way, the prox sensor is a 508D Double guard Field disturbance sensor. DEI's web site doesn't even have it on there, so there is not way to tell if it pulls more than 500 ma..Thanks again for any help you can give me!

------------------
1999 Cavalier
Eibach Springs
Ground Effects
Racing stripes
Enkie Wheels
Pioneer deh-p9200 Deck
RF Power 1000@2
RF Punch 800@4
JL 12w3's
FNQ components in kick panels.


Posts: 53 | From: Burlington, IN | Registered: May 2000  |  IP: Logged | Report this post to a Moderator
David McLean
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Member # 517

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quote:
Originally posted by ED:
In the installation instructions, it says that a relay(611t Latching relay) should only be needed if there is not ground when armed output. But if the security system has one, to jsut connect the black wire to the ground when armed output. By the way, the prox sensor is a 508D Double guard Field disturbance sensor. DEI's web site doesn't even have it on there, so there is not way to tell if it pulls more than 500 ma..Thanks again for any help you can give me!


A latching relay, is definately not needed. Although you may still need a standard Single Pole Double Throw (SPDT) relay. You probably will not need one at all. You might just shoot an e-mail off to DEI. Ask them if you can connect the ground off the sensor directly to the brain without an additional relay.

------------------
David McLean
Team Quadzilla
http://www.teamquadzilla.com


Posts: 3359 | From: Jacksonville, FL USA | Registered: Sep 1999  |  IP: Logged | Report this post to a Moderator
ED
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Im going to email them today and ask, thanks again for your input!

------------------
1999 Cavalier
Eibach Springs
Ground Effects
Racing stripes
Enkie Wheels
Pioneer deh-p9200 Deck
RF Power 1000@2
RF Punch 800@4
JL 12w3's
FNQ components in kick panels.


Posts: 53 | From: Burlington, IN | Registered: May 2000  |  IP: Logged | Report this post to a Moderator
   

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