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Wiring multiple contacts on one ZONE

T

taft

Jan 1, 1970
0
I have a CADXX NX-6 System and am trying to add some Magnet resest
window contacts.

Each window will be on its own zone; however I am adding two contacts
to each window. One on the top and one on the bottom and have
connected these two contacts together.

I am unable to get each contact to work independently. Currently in
order to trip the zone, both the top and bottom windows need to move.

I am using 22/2 wire. Can someone tell me how to do this? Also where
to I need to place the resistor, the system is using an EOL resistor.
 
F

Frank Olson

Jan 1, 1970
0
taft said:
I have a CADXX NX-6 System and am trying to add some Magnet resest
window contacts.

Each window will be on its own zone; however I am adding two contacts
to each window. One on the top and one on the bottom and have
connected these two contacts together.

I am unable to get each contact to work independently. Currently in
order to trip the zone, both the top and bottom windows need to move.

I am using 22/2 wire. Can someone tell me how to do this? Also where
to I need to place the resistor, the system is using an EOL resistor.


You currently have the contacts wired in parallel. This is good if
you're using end of line resistors and normally closed contacts (these
"short" when the window opens). The contacts you have are "normally
open" (they "short" when the window's closed). You have to wire them in
series. Excuse the crude diagram:

__________________/_______/______
ZN Terminal |
_________________________________|
Common Terminal

If you're going to use the end-of-line, then install it in series with
the last contact.

Your 22/2 wire has red/black. Connect the red wire to one lead of the
first contact. Connect the red wire going to the second contact to the
other lead from the first contact. Connect the two blacks together. At
the second contact, connect the red wire to one lead. Connect one end
of the end of line to the second lead. Connect the black lead to the
other end of the end of line. With both windows closed, the zone should
be clear. If you open one (or the other), the zone will "fault".

Frank Olson
http://www.yoursecuritysource.com
 
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