INST
ALLA
TION
14
PA4 Alarm
Decide which doors and windows are to be protected
by Magnetic Contact Detectors, usually the front and
back doors will have Magnetic Contact Switches fitted.
Additional contacts may be fitted where required to
other vulnerable doors or windows, e.g. garage, patio
and conservatory doors etc.
Note: It is not recommended to connect more than 4
Magnetic Contacts in any one zone, as this may cause
difficulty in wiring and hinder any attempt to efficiently
remedy any wiring faults and locate the device that
initiated the alarm.
1. Having chosen a suitable position to locate the
Magnetic Contact, run the required length of 6 core
cable back to the Control Panel.
Alternatively, Magnetic Contact(s) may be wired in
series with each other and terminated appropriately.
However, working space within the Magnetic Contact
is limited and more than two or three termination's
may prove difficult.
Do not make any connections at this stage.
2. Fit the Magnet to the moving part of the window or
door (on the opening edge opposite the hinge) and
make sure that the parallel gap to where the Contact
Switch is fitted on the frame is no more than 9mm.
Typical position of contact fitted to door
WIRING THE MAGNETIC CONTACTS
1. Remove one of the cable entry cut-outs on the
Contact Switch and thread the cable through the
entry into the Contact Switch housing.
2. Carefully remove the outer sheath of the cable and then
strip 5mm of insulation from the Yellow and Blue wires.
Connect the Yellow and Blue wires to the Contact
Switch terminals as shown.
3. Strip off 5 mm of the insulation from the Green and
White wires and connect together using a spare
terminal in the contact housing.
Note: If the spare contact terminals are not present in
the contact then the ends of the wires should be
securely twisted (or soldered) together and insulated.
If connecting multiple contacts the Tamper circuit
wiring should be continued in a series loop in a
similar way to the zone wiring.
The remaining wires should be trimmed back and
insulated to prevent short circuits and then tucked
away in the Contact Switch housing.
4. Fix the Contact Switch to the fixed part of the door/
window frame immediately beside and parallel to the
Magnet using two 25mm Counter-sunk fixing screws.
Ensure that the parallel gap between the Magnet and
Contact Switch positions is no greater than 9mm.
5. Bring the contact cable(s) through the cable entry
slot in the rear of the Control Panel and strip back
5mm of each core and twist the strand ends.
INSTALLING THE MAGNETIC CONTACT DETECTORS
Magnet
Magnet
Contact
Switch
Contact
Switch
Window
Mounting
Door
Mounting
Max Gap
9mm
(door/window
closed)
Note: If spare terminals
are not present in the
Contact Switch, ends of
wires should be twisted
(or soldered) together
and insulated.
WHITE
BLUE
YELLOW
GREEN
MULTIPLE CONTACTS
Wired in series
SINGLE CONTACT
WHITE
BLUE
GREEN
YELLOW
