Door Contact (DC-23) User Manual V:R3
The Door Contact monitors the opening/closing of specified devices (e.g. door or window). The Door Contact is fixed to the
monitored device frame with an actuating magnet fixed to the dev ice. When the door or window opens, the magnet moves
away from the Door Contact, activating an internal magnetic switch causing the Door Contact to transmit alarm signal to th e
Central Panel. The device also has the capabilities of communicating signal problems along with low battery situations.
The Door Contact design consists of a cover and base. The cover contains all electronics and the base provides a means for
fixing the device. An enclosed PCB tamper switch provides tamper protection against unauthorized device opening and/or
removal.
Parts Identification
1. Latch
2. LED indicator / Test button
Press the Test button to transmit learning code or enter test mode for 3 min.
3. Mounting Holes
Used to fixed and screw the Door Contact directly onto the Door Frame or Wall.
4. Tamper Switch
When Door Contact is mounted, the Tamper switch will be activated when the cover is
opened or when the Door Contact is removed from mounted surface.
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Loosen the fixing screw and remove the cover to reveal terminal as shown.
5. Internal Magnetic Switch Jumper Switch (JP3)
- Jumper ON: Internal Magnetic Switch disabled. Only the device connected to Extension
Terminal will activate the Door Contact
- Jumper OFF: Internal Magnetic Switch enabled. (Factory Default for all models)
Jumper On
The jumper link is inserted
Jumper Off
if the jumper link is removed or
“parked” on one pin.
6. Battery Compartment
7. Extension Terminal
In addition to the built-in magnet switch, an additional 2-pi n dry contact terminal is provided
for an extension magnet switch or any device with N.C. (Normally Closed) functionality.
Features
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In Normal Operation Mode, the LED will not light when the Door Contact is activated.
When the Door Contact battery voltage is low, every time the Door Contact is activated
(device opened/ closed), the LED will light on for 2 sec.
When the cover is opened or the tamper switch is triggered, the LED will light on for 2
seconds. When a tamper condition persists, the LED will light on for 2 seconds whenever the
Door Contact Is activated.
When the Door Contact is in Test mode, the LED will light up every time it is activated.
When the battery is exhausted, the Door Contact will stop all function, the LED will flash every 4 seconds.
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The Door Contact has an extension terminal to provide enhanced flexibility. The extension terminal forms a closed loop
with the device connected to it. When the device is triggered the loop is opened, the Door Contact will also be triggered.
The extension terminal and the internal magnetic switch can function together to trigger the Door Contact when either of
them is activated, you can also choose to disable the internal magnetic switch through JP3 Jumper setting.
To connect the device to extension terminal:
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1. Open the Door Contact’s cover.
To open the cover, use your thumb to press on the Latch, while pressing it, pull out the cover from the base of the
Door Contact (see below picture from upper view angle).
2. The upper end of the front case has a thinner plastic knockout. Break through the knockout to create a hole for the
wiring connection to the extension terminal.
3. Connect the device to the extension terminal
The Extension terminal may be useful for the following situation.
If the Door Contact cannot be mounted on the door frame, you ca n connect an additional e xtension magnet s witch to
the extension terminal to mount the Door Contact remotely.
Any dry contact device with N.C. (Normal Close) loop c an be connected to the Extension Terminal making the Door
Contact serve as an Universal Transmitter.
Multiple dry contact device can be wired together with Door Contact, as show in diagram below.
The extension terminal and internal m agnetic switch can function together to trigger the Door Contact when either of
them is activated, you can also choose to disable the internal magnetic switch through JP3 Jumper setting. If both
extension terminal and internal magnetic switch is in use and any of them is triggered (opened). The Door Contact will
only send Door Contact close (restore) signal when both of them are closed.
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The Door Contact is powered by one CR123 3V Lithium battery. Please note: ALWAYS replace battery with the
The Door Contact can detect low battery condition. When the battery voltage is low, a low battery signal will be sent
When changing battery, after removing the old batteries, press the Tamper Switch twice to fully discharge before
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The Door Contact is protected by a tamper switch which is compressed against the mounting surface when the Door
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After installation, the Door Contact will automatically transmit Supervisory Signals periodically to the Control Panel at
If the Control Panel has not received the signal from the Door Contact for a preset period time, the Control Panel will
correct size and voltage.
to the Control Panel to notify the condition. The LED will light up when the Door Contact is activated un der low battery
status. When the battery is exhausted, the Door Contact will stop all function, the LED will flash every 4 seconds.
inserting new battery.
Contact is mounted. Whenever the Door Contact cover is opened, or removed from mounted surface, the tamper
switch will be activated and the Door Contact will send a tamper open signal to remind the user of the condition.
random intervals of 30-50 minutes.
indicate the particular Door Contact is experiencing an out-of-signal problem.
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Under Normal Mode, press the Test Button to transmit a test signal and learning code to the Control Panel. The Door
Contact will also enter the Test Mode for 3 minutes.
Under Test Mode, the LED will light up whenever the Door Contact is activated.
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