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Re: PIR with tamper
Convenient? This is pretty nifty. Tell me, is it yours? Or should you be
thanking someone for this clever little gem?
"Robert L. Bass" <robertlbass@xxxxxxxxxxx> wrote in message
news:X66dnbUozK5VcxbfRVn-qA@xxxxxxxxxxxxxx
> > Most commercial PIRs worth their salt have a
> > tamper... Wire them in with daytime supervision.
>
> If the gentleman wishes to tamper the PIR's but has only standard
four-wire
> cable in place, here's a convenient method. It requires more zones but at
> least he won't need to run new cables.
>
> Most alarms use the common negative as the zone return. Use two EOL
> resistors to jumper between the -12V terminal inside the PIR to the alarm
> common and tamper common. Connect +12V as usual. Connect the yellow wire
> to the alarm NC. Connect the green wire to the tamper NC.
>
> At the panel connect the red and black to aux power as usual. Connect the
> yellow wire to a zone programmed for motion. Connect the green wire to a
> zone programmed for 24-hour tamper.
>
> If the panel uses a common positive for zone returns, jumper the EOL
> resistors from the +12V terminal and do the rest as above. We did this
when
> upgrading panels during takeovers of commercial clients. Most
> professionally installed systems were not tampered so there rarely were
more
> than 4 wires at motion and glass break detectors.
>
> --
>
> Regards,
> Robert L Bass
>
> =============================>
> Bass Home Electronics
> 2291 Pine View Circle
> Sarasota · Florida · 34231
> 877-722-8900 Sales & Tech Support
> http://www.bassburglaralarms.com
> =============================>
>
>
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