Re: Doubled up connections to security sensors? was Re: Z-WAVE question
- From: Frank Olson <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 23 Apr 2006 03:53:15 GMT
Marc F Hult wrote:
What are the caveats to wiring two alarm systems in parallel to the same
sensor? (This is different that what you describe above if I understand
correctly.)
You can't. You would either have to install another switch adjacent to the first (if your alarm installer ran 22/4 to each door/window, this shouldn't be a problem). Otherwise, you'd need contacts with double pole switches. GRI manufactures them which I've used on occasion (http://www.grisk.com/specialty/aa-ac.htm)
(and yes, this is quite different from what I described in response to the OP).
My situation is that I have a complete, satisfactory Napco security system
for which the wiring was professionally installed long ago with the usual
mix of smokes, contacts, motion detectors, beams etc.
When I set up the HA system in this house 7 or so years ago, I tried to use
the built-in 'lighting vector' (aka "lighting path") feature of my
CyberHouse HA software. This uses multip[e sensors to determine the location
and direction of travel of a detected person to turn lights on and off as
the person walks through a space. But the Napco firmware is slow in
reporting out through the RS-232 port to the HA computer. I've also tried
using Napco relays to follow the sensors but this was also too slow. So I
now I plan to use a different faster controller to create the lighting path
function and so would like to 'double up' on some of the motion detectors.
It may be possible to accomplish what you want on the PIR's as well (as long as the negatives of both systems are common to the zone "common" terminals and you connect *both* systems aux power negative together. I can diagram this for you if you like.
.
- References:
- Z-WAVE question
- From: Dennis
- Re: Z-WAVE question
- From: Frank Olson
- Doubled up connections to security sensors? was Re: Z-WAVE question
- From: Marc F Hult
- Z-WAVE question
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