Visonic DISCOVERY DUO User manual

DE1835 DISCOVERY DUO / DISCOVERY DUO AM Installation Instructions 1
DISCOVERY DUO
DISCOVERY DUO/AM
Dual-Technology Microwave/PIR Intrusion Detectors
Installation Instructions
1. FEATURES
Cylindrical optics improves detection and false alarm immunity.
True Motion Recognition™ (TMR) algorithm (patented)
distin- guishes between the true motion of a human body and
other disturbances which invariably cause false alarms
DRO-stabilized MW microstrip technology (patented)
MW Motion Simulator simulates the effect of a human body
moving in the MW field (for MW self-test - patent pending)
Range control for adjusting the MW coverage
Integral swivel bracket for wall or ceiling installation
Sealed chamber protects the pyroelectric element from
insects.
PIR self-test by applying a short heat pulse (DISCOVERY
DUO/AM only)
Programmable motion event
counter (1 or 2 events)
Simple-to-use, two-position
vertical adjustment
TEST input to enable/disable
the walk test LED remotely
(per new European standard)
Open collector trouble output
Anti-masking protection
(DISCOVERY DUO/AM only)
White light protection. Figure 1. General View
2. SPECIFICATIONS
Input Voltage: 9 to 16 VDC
Current Drain: About 28 mA @ 12 VDC
PIR SECTION
Detector: Low noise dual-element pyroelectric sensor
Tripping Indication: LED flashes green for up to 5 seconds
Motion Event Verification Counter: Selectable, 1 or 2 events
Lens Data (No. 105DH - see Figure 2)
No. of Beams: 36 in two layers (curtain beams in bottom layer)
Max. Coverage: 12 x 12 m (40 x 40 ft) / 90° field of view
Vertical Adjustment: FAR and NEAR, by sliding the circuit
board along a two-position scale.
MW SECTION
Oscillator: Microstrip DRO-stabilized Doppler module
Frequency: 10.525 GHz (U.S.A. only) or 2.45 GHz (Europe)
Detection Range: Adjustable from 25% to 100% (3 m to 12 m)
Tripping Indication: LED glows green for up to 5 seconds
ALARM, TAMPER & TROUBLE DATA
Alarm Indication: LED glows red for 1.3 to 5 seconds if both
detectors trip
Relay Contacts: N.C., rated at 0.1 A resistive / 30 VDC; 18 
resistor in series with contacts
Alarm Duration: 1.3 to 5 seconds
Tamper Switch: N.C., rated at 50 mA resistive / 30 VDC
Trouble Output: Open collector, 100 mA max., with 18resistor
in series and 47 kpull-up (see Figure 11)
Masking Detection Delay (/AM version only): About 60 seconds
Trouble/ Masking Indication: LED alternately flashes green and
red and TRB output pulls LOW until the detector is reset.
MOUNTING
Height: Up to 3.6 m (12 ft)
Room Size: 8 - 12 m (24 -
40 ft) in the “FAR” position;
2-8m(6 -24 ft) in the NEAR
position.
Bracket Adjustment: 20°
downward, 20° left and right.
Installation Options: Surface or
corner (without bracket); surface
or ceiling (with bracket)
ENVIRONMENTAL
RFI Protection: >30 V/m up to
1000 MHz.
Operating Temperatures: -10°C
to 50°C (14°F to 122°F).
Storage Temperatures: -20°C to
60°C (-4°F to 140°F). Figure 2. Coverage Pattern
Standards: Complies with Part 15 of the FCC Rules.
This device is designed to comply with the essential requirements
and provisions of Directive 1999/5/EC of the European Parliament
and of the Council of 9 March 1999 on radio and
telecommunications terminal equipment.
2.45 GHz has no restriction in any EU member state.
To comply with the Canadian standard RSS-210, this device
must be operated indoors only to provide maximum shielding
and to prevent interference to licensed services.
PHYSICAL
Size (H x W x D): 117 x 65 x 47 mm (4-5/8 x 2-9/16 x 1-7/8 in.).
Weight: 109 g (3.85 oz) w/o bracket, 124 g (4.4 oz) with bracket.
PATENTS
U.S. Patents 5,237,330 and 5,693,943 (other patents pending)
3. INSTALLATION
3.1 Installation Hints
To minimize false alarms:
Do not aim at heat sources
Mount on solid, stable surfaces
Do not expose to air drafts
Do not install outdoors

2 DE1835 DISCOVERY DUO / DISCOVERY DUO AM Installation Instructions
Prevent direct sunlight from
reaching the detector
Keep wiring away from
electrical power cables
Do not install behind partitions
In addition, a few important rules must be observed while selecting a
mounting location:
1. Microwave radiation passes through glass and non-metallic
walls. Be sure to adjust the MW range so that it does not
exceed the room limits, or else motion in the next room or
moving traffic along the outer side of the wall will cause the
MW detector to trip.
2. Large reflecting objects (especially metals) in the coverage
area can distort the microwave detector's coverage pattern.
3. If two DISCOVERY DUO units are installed in the same room
or on opposite sides of a shared wall, they should not face
each other and must be mounted at least 2 meters apart.
4. Do not install the DISCOVERY DUO in places where one of
the two detector circuits alarms constantly or intermittently,
due to environmental interference.
NOTE: DISCOVERY DUO-AM users are advised to mount the
unit in locations where inadvertent approach to less than 1 m
(3 ft) from the detector is unlikely to occur.
3.2 Mounting without Swivel Bracket
1. Remove the front cover as shown in Figure 3.
Figure 3. Cover Removal
2. Loosen the vertical adjustment screw, slide the PCB down and
remove it via the “keyhole” (see Figure 4).
3. Pull the PCB straight
out and put it aside
until required again.
4. Refer to Figure 5 and
punch out the
mounting knockouts
at the rear wall of
the base (for surface
mounting) or at the
angled sides (for
corner mounting).
Figure 4. PCB Removal
5. Punch out any one of the wiring knockouts shown in Figure 5.
6. Hold the base against the wall at the selected installation
location, mark the points for drilling and drill the holes (insert
the plastic dowels supplied if necessary).
7. Pass the wires through the wiring inlets into the base and
attach the base to the wall using the screws supplied.
8. Return the PCB to its place within the base.
9. Proceed to wire the terminal block as instructed in Para. 3.4.
Figure 5. Inside View
3.3 Mounting with Swivel Bracket
1. Remove the front cover as shown in Figure 3.
2. Remove the PCB (see Figure 4) and put it temporarily aside.
3. Punch out the large knockout in the round bulge at the top
part of the base (see Figure 6)
Figure 6. Attaching the Bracket
4. Assemble the
bracket as
shown in
Figure 6.
5. Rotate the
bracket to the
desired
position (refer
to Figure 7)
but do not yet
tighten the
screw fully.
Figure 7. Wall and Ceiling Positions
6. Punch out the selected wiring
knockouts in the bracket base
(see Fig. 8).
7. Press the bracket against the
mounting surface and mark
the points for drilling. Drill out
the holes and insert plastic
dowels, if necessary. Attach
to the wall with the 2 screws. Figure 8. Bracket Rear
8. Route the cable through
the bracket and into the
detector as shown in
Figure 9.
9. Attach the bracket to the
mounting surface using
the two screws
supplied.
10. Tilt down or swivel the
detector to face the
desired direction. Fig.
10 shows the various
possibilities of tilting and
swiveling.
Figure 9. Routing the Cable

DE1835 DISCOVERY DUO / DISCOVERY DUO AM Installation Instructions 3
Figure 10. Tilt/Swivel Limits
3.4 Wiring
Refer to Figure 11
and connect wires to
the terminal block in
the following order:
Terminal: TAMP
(tamper switch)
Connect to: Normally
closed 24-hour tamper
zone of the control
panel.
Details: Upon remo-
val of the cover, the
tamper contacts will
open. Figure 11. Terminal Block Wiring
Terminal: NC (alarm relay)
Connect to: Normally closed burglar protection zone.
Details: Upon alarm or power failure, the output relay's normally
closed contacts open.
Terminal: TRB (trouble output)
Connect to: 24-hour trouble zone
Details: The TRB open collector output will be grounded upon
detector malfunction or upon masking (DISCOVERY DUO/AM only),
thus triggering the trouble zone.
Alternative: A buzzer or an interface relay may be connected across
the TRB output and the 12 VDC (+) terminals.
Terminal: TST (TEST input)
Connect to: +12 VDC or ground potential (depending on the setting
of DIP switch SW-3) via a test switch.
Details: Applying the trigger voltage to the TST input will enable the
dual color LED for walk testing.
Terminals: 12 V (+) and (–)
Connect to: A power source within the range of 9 to 16 VDC.
Details: It is advisable to connect the power source only after all
other connections have been completed and rechecked. Disconnect
the AC mains from the alarm control panel and verify that the voltage
supplied to the detector is above 9 Volts with the backup battery as
the only power source.
IMPORTANT: To comply with CE safety requirements, connect to
CE-approved control panels with current-limited DC output.
Note: Use RTV to seal the base opening(s) to prevent insects from
entering the detector.
3.5 The Power-up Process
After connecting the (+) and (–) terminals to the power source, the
DISCOVERY DUO starts a 60-second warm-up period, indicated by
alternate flashing of the green and red lights.
Caution! If the alternate flashing of the red and green lights does not
stop within 60 seconds, a failure has been detected by the self-test
circuitry, or, if you are dealing with the DISCOVERY DUO/AM, the
unit may be masked (refer to Para. 3.6).
3.6 What Happens in Case of Masking?
If an attempt is made to stick masking material over the lens or put a
masking object close to the lens (DISCOVERY DUO/AM only), a
trouble alert will result about 60 seconds after masking:
The LED will flash red and green alternately;
The TRB output will pull to ground and will remain grounded until
the detector is reset (see Para. 3.14 for procedure).
3.7 Visual Indications
The dual color LED is used to signal various alarm and trouble
messages as shown in Table 1 below:
Table 1. Interpreting the Visual Indications
Visual Indication Significance
None No detection
Steady green (5 s) MW walk-test detection
Flashing green PIR walk-test detection
Steady red (5 s) Alarm: MW + PIR detection
Flashing red and 1. Trouble or masking is being
green (alternately) detected by the self test circuitry
2. Initial warm-up routine (stops 60
seconds after power up).
Notes:
1. During walk testing, the green light glows steadily (MW detection) or flashes
(PIR detection), depending on which one of the two detectors discovered the
movement first. Upon subsequent discovery of the movement by the other
detector, the green light goes off and the red light glows (alarm).
2. If the LED maintains alternate red and green flashing beyond the warm-up
period, a malfunction or masking has been diagnosed. Replace the unit
without delay.
3.8 Mode Selector
The DIP switch mode
selector is mounted on the
unit’s PC board (see
Figure 5). It controls four
functions as demons-
trated in Figure 12 and as
detailed in Table 2.
Figure 12. DIP Switch Mode Selector
Table 2. Mode Selector Switch functions
Switch State Function Default
SW-1 OFF One motion event trips the PIR ON
ON Two motion events trip the PIR
SW-2 OFF The walk-test LED is disabled* ON
ON The walk-test LED is enabled
SW-3 OFF Ground potential (–) enables the LED; OFF
floating terminal disables the LED
ON Floating terminal (or +12VDC) enables
the LED; ground potential disables test.
SW-4 OFF Output relay opens upon alarm OFF
ON Output relay opens upon alarm and also when
trouble is detected.
*The LED may be enabled remotely with a test switch connected to
the TST input as shown in Figure 11.
3.9 Vertical Adjustment
The vertical adjustment scale for the PIR detector is located at the
lower right edge of the PC board (refer to Figure 5). Two positions
are available - FAR and NEAR. All new DISCOVERY DUO units are
set to the FAR position. To adjust, loosen the vertical adjustment
screw, slide the PC board along the vertical slot until the pointer
indicates the required position on the scale (see Figure 13). When
done, tighten the adjustment screw firmly.
Figure 13. Vertical Adjustment

4 DE1835 DISCOVERY DUO / DISCOVERY DUO AM Installation Instructions
3.10 Setting the Motion Event Counter
If you wish to set the PIR detector for maximum false alarm
immunity, shift DIP switch No. 1 (SW-1) to ON. In this position, two
consecutive motion events are required to trip the PIR detector. For
faster catch performance, shift SW-1 to OFF. In this position, only
one motion event is required to trip the PIR detector.
3.11 PIR Walk Test
A. Rotate the MW RANGE control fully counterclockwise to MIN.
B. Verify that DIP switch SW-2 is set to ON (the LED is enabled).
C. Mount the front cover in place.
D. Walk into the detector's field of view at the expected far
edge of the coverage area. The green light should flash
for up to 5 seconds each time your motion is detected.
Note: If the green light glows steadily for up to 5 seconds,
your motion has been detected by the MW detector.
E. If PIR detection is not obtained at the far end of the
coverage area, remove the front cover and re-adjust the
vertical position. Replace the cover and retest.
3.12 MW Walk Test
A. Remove the front cover.
B. Verify that the MW RANGE control is set fully
counterclockwise to MIN and that DIP switch SW-2 is set to
ON (LED is enabled).
C. Start by moving into the coverage area at the far edge.
The LED should light green for up to 5 seconds each time
your motion is detected.
D. If your motion was not detected at the far edge, advance
the MW RANGE control slightly clockwise toward MAX
and try again until your motion is detected reliably at the
far edge.
Caution! The MW detection range must not exceed the far
edge of the desired coverage area.
E. Walk across the coverage area at various ranges and
verify that your motion is consistently detected.
Note: If PIR trips interfere with your test, disable the PIR
by inserting a small piece of cardboard in front of the
sensor.
3.13 Alarm Walk Test
A. Set DIP switch SW-2 to ON (the LED is enabled).
B. Install the front cover in place.
C. Walk across the detector’s field of view in different
directions, at various distances from the detector, and
verify proper alarming throughout the detector's coverage
area (the red light glows for 1.3 to 5 seconds).
D. When done, remove the cover and set DIP switch SW-2 to
OFF to prevent unauthorized tracing of the coverage
pattern.
E. Remount the cover and fasten it to the base using the
small screw at the bottom.
Attention! To assure proper function of the detector, the range
and coverage area should be checked at least twice a year.
Furthermore, it is recommended that users perform a walk test
at the far end of the coverage pattern to assure an alarm signal
prior to each time the alarm system is armed.
3.14 Resetting after Trouble (DISCOVERY
DUO/AM)
In case of trouble alert, proceed as follows:
Search for masking material on the lens or a masking object
in front of the lens and remove them, if found.
Reset the detector by walk testing: cross its field of view at
the far end, causing it to alarm several times.
If everything is back to normal, the LED should stop flashing, and
the TRB output should revert to the open-circuit state (dis-
connected from the ground).
Note: If walk testing does not cause the trouble alert to stop,
recheck for masking. Once masking is ruled out, the trouble is
probably due to defective PIR or MW circuitry. Replacing the
detector unit will solve this problem.
4. MISCELLANEOUS COMMENTS
This device has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in residential installations. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio and television reception. However, there is no
guarantee that interference will not occur in a particular installation. If
this device does cause such interference, which can be verified by
turning the device off and on, the user is encouraged to eliminate the
interference by one or more of the following measures:
– Re-orient or re-locate the receiving antenna.
– Increase the distance between the device and the receiver.
– Connect the device to an outlet on a circuit different from the one
which supplies power to the receiver.
– Consult the dealer or an experienced radio/TV technician.
WARRANTY
Visonic Limited (the “Manufacturer") warrants this product only (the "Product") to the original purchaser only (the
“Purchaser”) against defective workmanship and materials under normal use of the Product for a period of twelve
(12) months from the date of shipment by the Manufacturer.
This Warranty is absolutely conditional upon the Product having been properly installed, maintained and operated
under conditions of normal use in accordance with the Manufacturers recommended installation and operation
instructions. Products which have become defective for any other reason, according to the Manufacturers
discretion, such as improper installation, failure to follow recommended installation and operational instructions,
neglect, willful damage, misuse or vandalism, accidental damage, alteration or tampering, or repair by anyone
other than the manufacturer, are not covered by this Warranty.
The Manufacturer does not represent that this Product may not be compromised and/or circumvented or that the
Product will prevent any death and/or personal injury and/or damage to property resulting from burglary, robbery,
fire or otherwise, or that the Product will in all cases provide adequate warning or protection. The Product,
properly installed and maintained, only reduces the risk of such events without warning and it is not a guarantee
or insurance that such events will not occur.
THIS WARRANTY IS EXCLUSIVE AND EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, OBLIGATIONS
OR LIABILITIES, WHETHER WRITTEN, ORAL, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE. IN NO CASE SHALL
THE MANUFACTURER BE LIABLE TO ANYONE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES
FOR BREACH OF THIS WARRANTY OR ANY OTHER WARRANTIES WHATSOEVER, AS AFORESAID.
THE MANUFACTURER SHALL IN NO EVENT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL,
CONSEQUENTIAL OR PUNITIVE DAMAGES OR FOR LOSS, DAMAGE, OR EXPENSE, INCLUDING LOSS
OF USE, PROFITS, REVENUE, OR GOODWILL, DIRECTLY OR INDIRECTLY ARISING FROM
PURCHASER’S USE OR INABILITY TO USE THE PRODUCT, OR FOR LOSS OR DESTRUCTION OF
OTHER PROPERTY OR FROM ANY OTHER CAUSE, EVEN IF MANUFACTURER HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
THE MANUFACTURER SHALL HAVE NO LIABILITY FOR ANY DEATH, PERSONAL AND/OR BODILY
INJURY AND/OR DAMAGE TO PROPERTY OR OTHER LOSS WHETHER DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL OR OTHERWISE, BASED ON A CLAIM THAT THE PRODUCT FAILED TO FUNCTION.
However, if the Manufacturer is held liable, whether directly or indirectly, for any loss or damage arising under this
limited warranty, THE MANUFACTURER'S MAXIMUM LIABILITY (IF ANY) SHALL NOT IN ANY CASE
EXCEED THE PURCHASE PRICE OF THE PRODUCT, which shall be fixed as liquidated damages and not as a
penalty, and shall be the complete and exclusive remedy against the Manufacturer.
When accepting the delivery of the Product, the Purchaser agrees to the said conditions of sale and warranty and
he recognizes having been informed of.
Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so these
limitations may not apply under certain circumstances.
The Manufacturer shall be under no liability whatsoever arising out of the corruption and/or malfunctioning of any
telecommunication or electronic equipment or any programs.
The Manufacturers obligations under this Warranty are limited solely to repair and/or replace at the
Manufacturer’s discretion any Product or part thereof that may prove defective. Any repair and/or replacement
shall not extend the original Warranty period. The Manufacturer shall not be responsible for dismantling and/or
reinstallation costs. To exercise this Warranty the Product must be returned to the Manufacturer freight pre-paid
and insured. All freight and insurance costs are the responsibility of the Purchaser and are not included in this
Warranty.
This warranty shall not be modified, varied or extended, and the Manufacturer does not authorize any person to
act on its behalf in the modification, variation or extension of this warranty. This warranty shall apply to the
Product only. All products, accessories or attachments of others used in conjunction with the Product, including
batteries, shall be covered solely by their own warranty, if any. The Manufacturer shall not be liable for any
damage or loss whatsoever, whether directly, indirectly, incidentally, consequentially or otherwise, caused by the
malfunction of the Product due to products, accessories, or attachments of others, including batteries, used in
conjunction with the Products. This Warranty is exclusive to the original Purchaser and is not assignable.
This Warranty is in addition to and does not affect your legal rights. Any provision in this warranty which is
contrary to the Law in the state or country were the Product is supplied shall not apply.
Warning: The user must follow the Manufacturer’s installation and operational instructions including testing the
Product and its whole system at least once a week and to take all necessary precautions for his/her safety and
the protection of his/her property.
1/08
EMAIL: [e-mail]
INTERNET: www.visonic.com
VISONIC LTD. 2013 DISCOVERY DUO DISCOVERY DUO/AM DE1835- (REV. 6, 01/13)