Newbie Door Contact Question

[dolfan]

I would like it to wire to NC magnetic contacts in series. Is it as
easy I think? Would either contact cause an alarm? Thanks in advance.

 

[Father Jack]

Yes, but you would not know which contact caused the alarm!

 

[Crash Gordon®]

Yes, and yes.


| I would like it to wire to NC magnetic contacts in series. Is it as
| easy I think? Would either contact cause an alarm? Thanks in advance.
|

 

[Robert L. Bass]

I would like it to wire to NC magnetic contacts

in series. Is it as easy I think? Would either
contact cause an alarm? Thanks in advance.

Yes. The circuit is similar to old-fashioned Christmas lights. If they are
wired in series, opening either contact will violate the zone. That's the
simple answer.

As with most things, there's more to consider. If you have multiple sensors
on one zone (sensing circuit) it can be more difficult tracking problems.
An intermittent open circuit (alarm installers call this a "swinger") can be
a real pain to track if there are a lot of sensors in series on one zone.
The ideal technique is to place each sensor on a separate zone. Problems
can be identified the instant they occur. System use and configuration is
also more flexible. The down side is this approach requires more zones.
The control panel may cost more. Zone expanders allow you to add 8 or more
additional zones to the basic system. These can be added to many panels but
they cost.

Most knowledgeable technicians will tell you that it's important to at least
keep each motion and glass break detector on its own loop. Some of us are
more cautious, preferring to place every sensor on a separate zone. The
optimum configuration for most folks lies somewhere between the ideal of one
sensor per zone and the least cost system which may have 4, 8 or more
sensors in each loop.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
2291 Pine View Circle
Sarasota · Florida · 34231
877-722-8900 Sales & Tech Support
http://www.bassburglaralarms.com
=============================>

 

[Bob Worthy]

Most knowledgeable technicians will tell you that it's important to at least
keep each motion and glass break detector on its own loop. Some of us are
more cautious, preferring to place every sensor on a separate zone.

Some of **us**are more cautious? Ummm....might lead one to believe you are
an active technician.

The

optimum configuration for most folks lies somewhere between the ideal of one
sensor per zone and the least cost system which may have 4, 8 or more
sensors in each loop.

A 6 zone panel with 8 or more devices per loop,(48 devices), I am sure the
homeowner with that many openings could afford the appropiate panel. If they
are simply wanting to cheap out, then they get what they pay for. With the
price of panels today, a couple of hundred dollars, for a home of that
magnitude, shouldn't be an issue.

 

[Frank Olson]

Some of **us**are more cautious? Ummm....might lead one to believe you
are
an active technician.

It's all Tom's fault. He's been comparing Robert's company with ADT, and
local Dealers. It's only natural that all this would tend to give Robert
delusions of grandeur. Besides which, Robert's frequent misrepresentations
about being "in the trade" are about as transparent as Paul's (who
frequently states he "knows" alot about wireless security systems).

The

A 6 zone panel with 8 or more devices per loop,(48 devices), I am sure the
homeowner with that many openings could afford the appropiate panel. If
they
are simply wanting to cheap out, then they get what they pay for. With the
price of panels today, a couple of hundred dollars, for a home of that
magnitude, shouldn't be an issue.

Shhhh!!!! Next thing you know, Robert will be saying that people with the
bigger houses most often "DIY"...