The JA-81M wireless magnetic door detector & universal transmitter 2 MHQ53700
The JA-81M wireless magnetic door detector & universal transmitter
The JA-81M is a component of Jablotron’s Oasis 80 alarm system. It is designed
to detect the opening of doors, windows etc. It can also be extended by a
normally closed / normally open sensor. It is also designed to detect the handling
of roller blinds. This is achieved by detecting CT-01 ratchet-wheel movements.
Small movements are filtered out so that wind blasts do not cause false alarms.
The JA-81M can be used with the LD-81 flood detector as well.
Installation
Installation shall only be undertaken by technicians holding a certificate issued by
an authorized distributor. This detector reacts to the removal of its magnet unit.
The electronics should be installed onto the non-moving part of windows or
doors, and the magnet onto the moving part. The detector should be installed
vertically. Avoid locating it directly on a metal frame as metal influences the
functioning of the magnetic sensor and radio communication. If the door or
window is made of metal, we recommend installing the detector unit away from
the metal and wiring up an external wired magnetic sensor which is connected to
the detector.
There are two different types of permanent magnets in the package - a standard
magnet in a plastic housing (A) and a whorl-shaped magnet (B) for use in places
where there is not enough space for a standard magnet or for counter-sinking the
magnet into a door or window’s inner frame. The right positions for placing both
types of magnets against the internal magnetic sensor are shown below as well
as the reaction areas for magnets in millimeters in three axes of movement.
IN 2
IN 1
GND
TMP
1k
external
sensors
LITHIUM
3,6V AA
10
10
10
10
20
20
10
10
10
20
10
45
A
B
mm
mm
mag. sensor
ON / OFF
reaction
tamper
switch
See the following instructions:
1. Open the detector cover by pressing the tab in.
2. Screw the rear cover to the solid part of the door/window.
3. Attach the magnet to the moving part of the window. Its distance from the
detector should not exceed 5mm when the door/window is closed. The lower
edge of the magnet should be aligned with the lower edge of the detector.
Only a single magnet can be installed, either on the left side or the right side
of the detector.
4. Leave the battery disconnected and the cover open and then follow the
control panel or receiver manual. The basics of enrollment are:
•Enter enrollment mode on the control panel by keying in “1” in Service
mode
•Install a battery into the detector to activate enrollment.
•Exit enrollment mode by pressing “#”
To enroll a detector after having already connected a battery, first disconnect the
battery, and press and release the tamper sensor to discharge any remaining
charge to ready the device for enrolment.
DIP switches
MG ON / MG OFF Allows the internal magnetic sensor inside the detector to be
disabled when the detector is only to be used with external sensors wired to its
terminals.
INS / DEL DEL provides entrance & exit delays for detectors installed in a
building entrance. INS allows the detector to instantly trigger alarm activation if
the control panel is armed. This DIP switch (INS/DEL) only has an effect if the
detector has a natural reaction assigned to its address in the Oasis control
panel.It also has no effect when used with a UC-8x or AC-8x receiver.
Opening the cover makes the detector react with a tamper signal.
Open / closed status detection
The detector has two different modes. The mode is indicated by one or two
short flashes when the battery is inserted.
One flash means that it indicates both opening and closing the door or window
(factory default setting). The control panel knows the status of doors / windows.
Two flashes means the pulse mode in which the detector indicates only opening
the door or window.
The mode can be set (changed) when keeping the tamper switch pressed while
installing the battery for 3 to 5 seconds.
Wiring up the external sensor
External sensors can be wired to the detector. It is possible to protect more doors
/ windows or to wire in other types of wired detectors. The inputs IN2 and TMP
react when disconnected from the GND common terminal. The IN1 input can be
used either as a NC input or a balanced loop input (EOL resistor 1k). The
function is detected automatically.
IN1 If the IN1 terminal is disconnected from GND it sends the same signal to the
control panel as if the magnet had been removed from the detector. The internal
magnetic sensor can be disabled by the DIP switch if desired.
The balanced loop feature can be used when the connection of a detector with a
NO output is needed. The resistor is then shorted out by the closing contact and
the detector is triggered.
IN 1
IN 2
Overflow
detector
IN 1
IN 2
1k
NO
NC
Wiring example for NC … and NO contacts
IN2 TheIN2input terminal receives signals from the ratchet-wheel CT-01.
Alarm signals are then only transmitted when the ratchet contact is opened at
least three times within 10 seconds. This filters out disconnections caused by
accidental ratchet-wheel shifts, which are due to wind blasts. When the IN2 input
is opened for more than 1 sec a tamper signal is sent.
ALARM
t < 5s
Ratchet-wheel function scheme
TMP The TMP terminal sends a tamper signal to the control panel if
disconnected from GND.
Note: If any of these two inputs is not used, it must be shorted to the GND
terminal.
The maximum length of the cable for external detector would not be longer
than 3 meters.
Testing the detector
15 minutes after closing the detector cover, the LED indicates detector triggering.
The strength and quality of detector signals can be measured by the control
panel in Service mode.
Battery replacement
The detector monitors its battery voltage and if too low, a transmission is sent to
the control panel to inform the installer or user. The detector continues to
function and shows each triggering of the detector with a flash of its LED. Battery
replacement should not be delayed by more than two weeks. This should be
done by a qualified technician with the control panel in Service mode.
Expired batteries should not be thrown into the garbage, but disposed of
according to local regulations.
Removing the detector from the system
If a detector is removed, the control panel announces the removal. The detector
has to be deleted in the control panel before intentional removal.
Technical parameters
Voltage Lithium battery type LS(T)14500 AA (3.6V 1,4 Ah)
Typical battery lifetime approx. 3 years for 20 daily activations maximum
Communication band 868 MHz, Oasis protocol
Communication range approx. 300m (open area)
Typical sensitivity range of the built-in magnetic sensor see the picture
Inputs for external sensors IN2 and TMP = normally closed loops
IN1 normally closed or balanced loop (1k resistor)
The maximum length of the cable for external detectors 3 meters
Dimensions 110 x 31 x 26 mm
magnet: 56 x 16 x 15 mm
Operational environment according to EN 50131-1 II. Indoor general
Operational temperature range -10 to +40 °C
EN 50131-1, EN 50131-2-6, EN 50131-5-3 classification: grade 2
Complies with ETSI EN 300220, EN50130-4, EN55022, and EN 60950-1
Can be operated according to ERC REC 70-03
Jablotron Ltd. hereby declares that the JA-81Mis in compliance with the
essential requirements and other relevant provisions of Directive 1999/5/EC. The
original of the conformity assessment can be found at www.jablotron.com,
Technical Support section
Note: Although this product does not contain any harmful materials we suggest you
return the product to the dealer or directly to the producer after use.
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