Visonic DISCOVERY DUO Installation Instructions

DISCOVERY DUO
DISCOVERY DUO/AM
Dual-Technology Microwave/PIR Intrusion Detectors
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)
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

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.
3. INSTALLATION
3.1 Installation Hints
To minimize false alarms:
Do not aim at heat sources
DE1835 DISCOVERY DUO / DISCOVERY DUO AM Installation Instructions

resistor
Mount on solid, stable surfaces
 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.
MOUNTING
Height: Up to 3.6 m (12 ft)
Room Size: 8 - 12 m (24 -
40 ft) in the "FAR" position;
2 - 8 m (6 - 24 ft) in the NEAR
position.
Bracket Adjustment:
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).
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)
Do not expose to air drafts
Installation Instructions
Figure 1. General View
20°
Figure 2. Coverage Pattern
Do not install outdoors
1