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P/N 1069154 • REV 4.0 • ISS 03DEC10
deliver precise, reliable presence detection. It is designed for
use in CCTV and intruder alarm systems.
Programmable options include a variable pulse count and a
choice of three detection ranges: 10 m / 33 ft., 20 m / 66 ft.,
and 30 m / 98 ft.
The integral dual-axis tilt sensor allows 180° of pan and 90° of
tilt. This increases the speed of the outdoor installation and
provides incredibly accurate aiming of the detection pattern.
The electronics module is acrylic coated for additional
component stability. It is encased in a vandal-resistant, high-
impact, UV stabilized plastic housing with an opaque
polyethylene front cover ensuring that the sensor is impervious
to and unaffected by weather conditions.
The combination of precision electronics, digital white light
filtering, and double shielding eliminates false alarms from the
sun and other visible light sources.
The DDI602 design has a neat and professional appearance
that gives no visible indication of the orientation of the detector
head and totally hides the wiring.
Quick installation
1. Mount and connect the detector following the instructions
given later in this sheet.
2. Apply supply voltage to the unit.
The detection LED (blue) flashes three times.
3. Wait approximately 2 to 3 minutes to allow the detector to
settle.
4. Press the programming button once to activate walk test
mode.
The detection LED is now enabled for five minutes.
Note:
The front cover must be fitted when walk testing.
The default settings are:
•
Range: 30 meters / 98 feet
•
Pulse count: 1
•
Detection LED: off
Mounting the unit
During installation, protect the electronics against water, as
trapped moisture can affect or damage the unit.
To mount the detector:
1. Drill the wall to accept the two fixing screws, the cable
entry, and the tamper cup (if used). See Figures 1 and 3.
A hole-drilling template is provided.
Notes
•
Leave a minimum 10 cm (4 inches) clearance above
the top of the detector housing to allow the cover and
the detector to be positioned correctly.
•
We recommend using the tamper cup on uneven wall
surfaces.
•
When mounting the units side by side, a minimum
space of 1 m must be left between the detectors and
the detectors must not be looking directly towards
each other. No minimum space is required when
mounting the units back to back.
•
The recommended optimum mounting height for the
detector is 3 m. Whilst it is possible to mount the unit
higher, this will give a reduced detection range and
will require the detection subject to move further
through the already reduced detection area before an
activation is signalled.
2. Remove the cover assembly by loosening the locking
screw using the hex wrench provided. Squeeze the sides
of the front cover to release the internal catches. The
cover hinges from the top and lifts out of the location slot.
See Figure 2.
3. Use a razor knife to open a rubber seal to allow the
cabling into the unit (see Figure 4). Feed standard eight-
core alarm cable into the cable entry. Bare the wires and
connect to the top PCB terminal block (Figure 5, item 2).
4. Screw the unit to the wall ensuring that the tamper pin is
correctly located and that the tamper microswitch is
closed.
To aid installation, two spare tamper feet are provided.
One is 1 mm shorter and the other is 2 mm shorter than
the tamper foot originally fitted. The tamper foot is a push
fit and can be removed by carefully pulling it from the pin.
See Figure 1.
5. When the detector is aligned, connected, and
programmed to suit the installation:
a. Fit the cover to the detector base.
b. Lightly screw the locking screw using the hex wrench.
c.
Put the top of the locking tool into the small notch on
each side of the cover, and then apply slight pressure
until the cover locks into the base, as shown in
Figure 17.
d. Tighten the locking screw.
Connecting the unit
The DDI602 includes jumpers that let you configure internal
end-of-line (EOL) resistor values, when EOL resistors are
required. Values are: 1, 2.2, 3.3, 4.7, 5.6, and 6.8 k
Ω
. Figure 5
shows:
1. EOL resistor jumpers
2. Wiring
points
Alternatively, you can remove the jumpers and connect a
discrete resistor directly to the alarm or tamper outputs, as
specified by third-party equipment.
Table 1: Connections
Terminal Label
Description
1, 2
ALARM N/C
Alarm relay, normally closed
2, 3
EOL
End-of-line resistors
3, 4
TAMPER
N/C
Tamper relay, normally closed
5, 6
ALARM N/O
Alarm relay, normally open
7, 8
+,
−
12V DC
12 V
power supply
