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Re: Question about how alarm triggers work

Subject: Re: Question about how alarm triggers work
From: "Doug L" <vssdoug@xxxxxxx>
Date: Thu, 15 Dec 2005 10:38:48 -0800
Newsgroups: alt.security.alarms
References: <jdc3q11kcrc257kc05u4vuin8qtfvjlaki@xxxxxxx>

The wires are probably 22 gauge 2 or 4 conductor

Doug L

--

"BIOSMonkey" <none@xxxxxxxx> wrote in message
news:jdc3q11kcrc257kc05u4vuin8qtfvjlaki@xxxxxxxxxx
> My home is prewired for a security system and it appears that there are
> single
> wires going to each window/door.  I am confused, though, how a single wire
> can
> detect the state of a trigger on the end when there is no common ground?
>

References:
- Question about how alarm triggers work
  - From: BIOSMonkey

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