Re: Glass breaks again...

["Robert L. Bass" <robertlbass@xxxxxxxxxxx>]

"Mark Leuck" <m..leuck@xxxxxxxxxxx> wrote in message
news:jMednTykJvdcbvPfRVn-uA@xxxxxxxxxxxxxx
>
> "Frank Olson" <feolson@xxxxxxxxxx> wrote in message
> news:rcrbe.1137885$6l.956618@xxxxxxxxxxx
>>
>>
>> Norm:
>>
>> You have obviously not dealt with anyone that's an orthodox Jew.  Do a
>> Google.  On the Sabbath they're not supposed to push any buttons or use
>> electricity (can't disarm their home security system, dial the phone or
> even
>> turn on a light switch).
>
> Bet thats hell on false alarms

I designed these systems so that motion and glass break detectors were not
only bypassed during holidays and Sabbaths.  They were powered down.  Only
perimeter sensors (magnetic contacts), smokes and heats (including 194
degree RORs in the attics:)) were active.  This arrangement caused very few
false alarms as Sentrol contacts almost never fail.

As the family prepared to leave for synagogue on Saturday morning or during
holy days, a relay would bypass the "shabbos door" which was usually in the
kitchen, allowing them to leave without disarming the rest of the perimeter.
A red LED on a plate near the door would light when the door was armed.  A
green LED would light when the door was bypassed.

After sunset the system would disarm, relays would restore power to PIR's
and glass breaks.  The door shabbos would return to normal.  A small sounder
(MA2 usually) would ring for 5 seconds, warning that the system was
restoring to full protection.  Two minutes after that the system would
disarm and then re-arm.  If anyone was home they could enter a code to stop
the arming sequence.

Each installation was different from the next.  Some families didn't want
the system to auto-arm.  Others wanted to be able to arm the system by phone
or modem.  Napco's Wizard is an interactive phone module which allows remote
system check and arm/disarm control.  The Quickloader software, a DOS app in
those days, provided modem control.

--

Regards,
Robert L Bass

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