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Wired Magnetic Contact
16-05-2012, 02:18 AM,
#1
Wired Magnetic Contact
Installation and Operating Instructions
These instructions should be read in conjunction with your System Installation and Operating Manual

Introduction
Magnetic Contacts are designed for use with wired Intruder Alarm systems.
The Magnetic Contact comprises two parts; a Magnetic
Contact Switch and a Magnet. They are designed to be fitted to either doors or windows with the Magnet screwed to the moving/opening part and the Contact Switch screwed to the fixed frame. When the protected door or window is closed the Contact Switch is held closed by the magnetic field from the Magnet. Opening the protected door or window will remove the magnetic field and allow the Contact Switch to open generating an alarm signal at the Control Panel, (if the system is armed).

Positioning the Magnetic Contact Detector
The Magnetic Contact detector is suitable for mounting in dry interior locations only.
Decide which doors and windows are to be protected by Magnetic Contact detectors; usually the front and back doors will have Magnetic Contact detectors fitted. Additional contacts may be fitted where required to other more vulnerable doors or windows, e.g. garage, patio and conservatory doors etc.
Note: It is not recommended to connect more than 10 Magnetic Contact detectors 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.

Installing the Magnetic Contact
1. Having chosen a suitable position to locate the Magnetic Contact, run the required length of 4 core cable back to the Control Panel.
Alternatively, the Magnetic Contact may be wired in series with an existing Magnetic Contact detector on the appropriate alarm zone.
Do not make any connections at this stage.
2. 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.
3. Ensure that the parallel gap between the Magnet and Contact Switch positions is no greater than 9mm.

Wiring the Magnetic Contact
IMPORTANT: Before making any connections, ensure that the existing system is fully shut down and all power, (mains and back-up battery) at the Control Panel is removed, (refer to your System Installation and Operating Manual).
The Contact Switch must be connected in a SERIES loop with existing zone wiring to the appropriate terminals on the Control Panel or to an existing detector on the zone.

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1. Remove one of the cable entry cut-outs on the Contact Switch and feed 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 one pair the wires. Connect wires to the Contact Switch terminals as shown.
3. Strip off 5 mm of the insulation of another pair and connect together using a spare terminal in the contact housing.
Note: If the spare contact terminals are not presant 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.
Note: If your existing system is using a non-standard colour coding system for the wiring, then this must be followed.
4. The remaining wires should be trimmed back and insulated to prevent short circuits and then tucked away in the Contact Switch housing.
5. Fix the Contact Switch to the fixed part of the door/window frame immediately beside 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.
6. The Magnetic contact is now ready to be connected to the Control Panel or existing zone wiring.
If wiring the new Magnetic contact to an unused zone connect to the appropriate zone terminals. Alternatively if wiring into a zone with which already has a detector, the contact wiring from the new Contact Switch must be connected in a SERIES loop with existing zone wiring.
The Tamper circuit wiring from the new Contact Switch must be incorporated into the existing tamper circuit in a SERIES loop.
7. The Magnetic contact is now ready to be tested.

Testing the Magnetic Contact
Once the Magnetic Contact has been installed, reconnect the power to the alarm system and test the new Magnetic Contact and the system in accordance with the System Installation & Operating Manual.
Note: After reconnecting the power to the system allow at least 4 minutes for any PIR(s) to stabilise before testing.
Tell me, and I'll forget. Show me, and I'll remember. Involve me, and I'll learn.
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