AJAX DualCurtain Outdoor User manual

DualCurtain Outdoor User Manual
Updated October 22, 2021
DualCurtain Outdoor is a wireless bidirectional outdoor curtain motion detector
with an adjustable detection range of up to 30 meters. The detector features an
anti-masking system and ignores pets if set up and installed correctly.
DualCurtain Outdoor has a narrow horizontal detection angle and is designed to
control property perimeter and passages: windows, archways, doors, gates.
The detector is compatible only with , , , and the
. Connectivity with and the and integration modules
is not supported!
DualCurtain Outdoor operates as part of an Ajax security system by connecting via
the secure radio communication protocol. The communication range with
a hub in the line of sight is up to 1,700 meters.
Hub Plus Hub 2 Hub 2 Plus ReX range
extender Hub ocBridge Plus uartBridge
Jeweller

Functional elements
Exterior
Buy DualCurtain Outdoor
1. LED indicator in the form of Ajax logo
2. Left-side detector lens
3. Left-side masking sensors
4. Right-side detector lens
5. Right-side masking sensors
6. SmartBracket mounting panel (slide the panel down to detach it)
The perforated part is necessary to trigger a tamper if there is an attempt to tear off the
detector from the surface. Do not break it!
7. The hole for attaching SmartBracket panel with a screw

Controls
Control and adjustment elements are located on the back of the detector.
Controls for the left side of the detector
1. Tamper button
2. Power button
3. QR code to connect to an Ajax security system

Adjustment elements for the right side of the detector
1. Near area detection switch
2. Beam direction switch
3. Scrollbar for adjusting the Detection distance
1. Near area detection switch
2. Beam direction switch

Operating principle
DualCurtain Outdoor is a bidirectional outdoor curtain motion detector that uses IR
sensors to identify moving objects with temperatures close to that of the human
body.
When armed, the detector continuously processes the sensor signals. When
motion is detected, DualCurtain Outdoor transmits an alert to a hub and alarms by
ashing the logo (if the indication is on). Motion is detected only if both IR sensors
on the same side are triggered.
When received an alarm event, a hub activates sirens, executes scenarios, noties
users and a security company. All DualCurtain Outdoor alerts and events are
recorded in the notication feed of the Ajax app.
The detector informs of consecutive triggerings at 5 seconds intervals. Keep this in mind
when testing the detector.
3. Scrollbar for adjusting the Detection distance
Learn more about Ajax motion detectors

DualCurtain Outdoor features two narrow-angle motion detectors facing opposite
directions. The detection range in total can reach up to 30 meters long (15 meters
in each direction).
The detection distance for each side can be adjusted independently, allowing you
to set the detection zone precisely and avoid false alarms caused by bushes, trees,
or other objects.
Users are notied of where the motion was detected. Notications include the
device name, the virtual room, and the name of the triggered side. Pressing the
button opens an image of the triggered side.
The detector doesn’t arm instantly. The arming time depends on two factors: exit delays
(specied in the detector settings) and the detector ping interval (Jeweller settings, the
default value is 36 seconds). The delay can be equal to the ping interval and extended by the
delay set by a user.
Pet immunity
When set up and installed correctly, DualCurtain Outdoor ignores pets up to 80
centimeters tall. The detector is equipped with four IR sensors (two on each side).
DualCurtain Outdoor only activates an alarm when motion is detected by both
sensors on a side.

If installed correctly, animals will trigger only one of the detector’s sensors. In such
a way, DualCurtain Outdoor lters false alarms. For additional protection against
false alarms, the detector .
Anti-masking system
Masking is an attempt to block the view of the detector by painting over it, covering
it, placing an obstacle in front of the detector’s lens, or otherwise.
DualCurtain Outdoor detects the following types of masking:
Masking type Time to alarm, seconds Time to restore, seconds
Obstacle in front of the
detector’s lenses (at a distance
of up to 10 centimeters from
the lens)
7 20
Painting over the lenses or the
detector’s side 100 20
Taping the lenses or the
detector’s side 100 20
The system informs users and a security company monitoring station about
masking. For extra protection and awareness, turn on the ’ response to
masking. The maximum masking detection time is 180 seconds (depends on the
type of obstacle and the distance to it).
Note that the anti-masking system is always active and works regardless of the security
applies ELSA, an advanced software algorithm
Why motion detectors react to animals and how to avoid it
Obstacle in front of the detector’s lens at a distance of up to 10 centimeters
(depends on the material).
Painting over the lenses or the detector’s side.
Taping the lenses or the detector’s side.
sirens

mode.
Protection against false triggerings
To lter false alarms, DualCurtain Outdoor applies ELSA (Extended Live Signal
Analysis) — a three-stage software algorithm that analyzes the signals received
from two narrow-angle IR sensors of the same optical system.
1. Form analysis
The shapes of both IR sensor signals should indicate the crossing of the secured
zone. In any direction: either perpendicular or along the direction of the detector
optics. At the same stage, a correction for the signal intensity is made to take into
account the distance from the sensors and the size of the object.
2. Patterns comparison of
The signal amplitudes are veried with the pattern database. To create it, we
analyzed thouthands of test triggers of curtain detectors on people, animals, lights,
and other natural sources in various weather conditions. Signal patterns should be
the same or insignicantly different from those typical to humans.
3. Time verication
When signals from both IR sensors match the conditions: this is motion and it is
typical for a human, the ELSA algorithm compares the time frames of the signals —
whether the upper and lower sensors detected the motion synchronously.
The system raises an alarm if all three conditions are met. The ELSA algorithm
takes less than 1 second to render a “threat” or a “false alarm” verdict.
Near area detection
Typically, outdoor curtain detectors have a blind spot near the enclosure. Its size
depends on the height of the installation, the type of the detector, and the motion

detection distance. The blind spot creates a potential vulnerability in the security
system.
DualCurtain Outdoor uses a technology extending the detection area that is unique
among outdoor curtain detectors to. When the Near area detection is activated, the
upper IR sensor of the detector receives an additional narrow sector of view,
directed at the angle of 40 degrees downward.
When enabled, Near area detection signicantly reduces the blind spot near the
sensors and enables covering doors, windows, and other pathways into the room
that are in close proximity to the detector.
The Near area detection mode is activated for each side on the back of the
detector enclosure, and it allows the sensors to detect motion when a person
crosses the protected perimeter near the device, eliminating the blind spot.
The Near area detection mode is designed to protect windows and other passages that are
not accessible to animals because it signicantly reduces the ecacy of pet immunity in the
proximity of the detector.
Viewing angle shift
With the Beam Direction slider, the DualCurtain Outdoor viewing angle can be
shifted by 3 degrees in the horizontal perspective. Shifting applies separately for
each side of the detector.
This feature helps to avoid blind spots and hinderings if there are obstacles in the
detection zone. For example, gutters, columns, or lamps.
Event transmission to a monitoring station
The Ajax security system can transmit alarms to central monitoring stations (CMS)
in Sur-Gard (ContactID), SIA (DC-09), and other proprietary protocol formats. The
complete list of supported protocols is .available here

The device ID and the loop (zone) number can be found on the . Keep
in mind that an alarm of each side is delivered to a CMS software with one code.
You can distinguish between right and left side detector alarms in the
app.
Adding to the system
The detector is not compatible with , third-party security control panels, and
and integration modules.
Before adding a device
Only a user or a PRO with administrator rights can add a device to the hub.
How to add DualCurtain Outdoor to the system
Which CMSs can the Ajax security system be connected to
states screen
Ajax PRO
Desktop
Hub ocBridge
Plus uartBridge
1. Install the . Create an . Add a hub to the app and create at
least one room.
Ajax app account
2. Make sure that the hub is on and has access to the Internet (via Ethernet cable,
Wi-Fi, and/or mobile network). You can do this in the Ajax app or by checking
the hub logo on the faceplate. The logo should light up white or green if the hub
is connected to the network.
3. Make sure that the hub is disarmed and does not update by checking its status
in the Ajax app.
Types of accounts and their rights

To make sure DualCurtain Outdoor is connected to the hub, the detector must be located at
the same secured facility as the system (within the range of the hub’s radio network).
The connected detector will appear in the list of hub devices in the Ajax app. Device
statuses updating in the list depends on the Jeweller settings; the default value is
36 seconds.
If the connection failed, try again after 5 seconds. If the maximum number of
devices has already been added to the hub, you will be notied when you try to add
a new one.
DualCurtain Outdoor works only with one Ajax hub. When connected to a new hub, the
detector stops sending commands to the old one. Once added to a new hub, DualCurtain
Outdoor is not removed from the device list of the old hub. This must be done in the Ajax
app.
Icons
The icons represent some of DualCurtain Outdoor statuses. You can see them in
the Devices tab, in the Ajax app.
Icon Value
Jeweller signal strength between the hub (or a ReX range extender) and the
detector
1. Open the Ajax app. If your account has access to multiple hubs, select the one
to which you want to add DualCurtain Outdoor.
2. Go to the Devices menu and click Add Device.
3. Name the detector, scan or type in the QR code (placed on the detector body
and the packaging), select a room and a group (if the group mode is enabled).
4. Click Add; the countdown will begin.
5. Switch on the device by holding the power button for 3 seconds.

DualCurtain Outdoor battery level
Malfunction detected. A list and description of malfunctions are available in the
detector states
DualCurtain Outdoor works via a ReX radio signal range extender
At least one side of the detector is in the Always active mode
Delay when entering and/or leaving enabled (applies to both sides of the detector)
DualCurtain Outdoor operates in the Night mode
DualCurtain Outdoor body status notications are temporarily disabled
DualCurtain Outdoor is temporarily excluded from the system operation
States
The states screen includes information about the device and its operating
parameters. The states of DualCurtain Outdoor can be found in the Ajax app:
Learn more
Learn more
Learn more
Learn more
Learn more
What do icons mean in Ajax mobile apps
1. Go to the Devices tab.
2. Choose DualCurtain Outdoor in the list.

Parameter Value
Malfunction
Pressing opens the DualCurtain Outdoor
malfunctions list.
The eld is displayed only if a malfunction is
detected
Temperature
Detector temperature. It is measured on the
processor and changes gradually. Acceptable
error between the value in the app and the room
temperature: 2-4°C
Jeweller signal strength
Signal strength between the hub (or a ReX range
extender) and DualCurtain Outdoor.
Recommended values — 2-3 bars
Connection
The state of the connection between the hub or
the ReX range extender and the DualCurtain
Outdoor detector:
Battery charge
The battery charge level of the device. Two states
are available:
When the batteries are discharged, the Ajax apps
and the security company will receive appropriate
notications.
After sending a low battery notication, the
detector can work for up to 2 months
Lid The status of the detector’s tamper that responds
to detachment of or damage to the body:
Online — the detector is online
Oine — no connection to the detector
OK
Battery low
How battery charge is displayed in
Ajax apps

Delay when entering, s
Delay when entering time (5 to 120 seconds).
Turns on for both sides of the detector.
Delay when entering (alarm activation delay) is
the time the user has for disarming the security
system after entering the secured area
Delay when leaving, s
Delay when leaving time (5 to 120 seconds).
Turns on for both sides of the detector.
Delay when leaving (arming delay) — this is the
time the user has to leave the secured area after
arming
Temporary deactivation
Shows the status of the device temporary
deactivation function:
Opened
Closed
What is a tamper
What is Delay When Entering
What is Delay When Leaving
No — the device operates normally and
transmits all events
Lid only — the hub administrator has disabled
notications about the body opening
Entirely — the hub administrator has entirely
excluded the detector from the system. The
device does not execute system commands
and does not report alarms or other events
By number of alarms — the device is
automatically disabled when the number of
alarms is exceeded (specied in the settings
for Devices Auto Deactivation). The feature is
congured in the Ajax PRO app
Learn more

Left side
Active
Indicates whether the left side of the device is on.
The states of the left side (below) will be available
if the side is active
Sensitivity
Sensitivity level of the left side of the motion
detector:
Always active
When enabled, the left side of the detector is
constantly armed and detects motion
Anti-masking
Masking state of the left sensor of the detector:
Right side
Active
Indicates whether the right side of the device is
on.
The states of the right side (below) will be
available if the side is active
Sensitivity Sensitivity level of the right side of the motion
detector:
Low
Medium
High
Learn more
Alarm — masking detected
On — the anti-masking system is on
Off — the anti-masking system is off
Learn more
Low
Medium

Always active
When enabled, the right side of the detector is
constantly armed and detects motion
Anti-masking
Masking state of the right sensor of the detector:
Firmware Detector rmware version
ID Detector ID. Also available on the QR code on the
detector body and on packaging
Device № Number of the device loop (zone)
Settings
that only part of the detector parameters can be congured in the Ajax app.
Detection distance, horizontal viewing angle shift, and near zone detection are
adjustable with .
To change the detector settings in the Ajax app:
To apply the settings after the change, click the Back button.
High
Learn more
Alarm — masking detected
On — the anti-masking system is on
Off — the anti-masking system is off
Learn more
Note
switches on the detector body
1. Go to the Devices tab.
2. Choose DualCurtain Outdoor in the list.
3. Go to Settings by clicking on the gear icon .

Settings Value
First eld
Detector name. Displayed in the list of hub
devices, SMS text, and notications in the event
feed.
To change the detector name, click on the pencil
icon .
The name can contain up to 12 Cyrillic characters
or up to 24 Latin characters
Room
Selecting the virtual room to which DualCurtain
Outdoor is assigned. The name of the room is
displayed in the text of SMS and notications in
the event feed
Delay when entering, s
Delay when entering time (5 to 120 seconds).
Turns on for both sides of the detector.
Delay when entering (alarm activation delay) is
the time the user has for disarming the security
system after entering the secured area
Delay when leaving, s
Delay when leaving time (5 to 120 seconds).
Turns on for both sides of the detector.
Delay when leaving (arming delay) — this is the
time the user has to leave the secured area after
arming
Delays in Night mode
When enabled, the delays when entering and
leaving apply to the Night mode.
The eld is displayed and active if delays are
enabled, as well as the Arm in Night mode feature
Arm in Night mode If active, the device will switch to Armed mode
What is Delay When Entering
What is Delay When Leaving
What is Night mode

when using Night mode
Alarm LED indication
Allows you to disable the ashing of the Ajax logo
on the detector in case of an alarm, tamper
triggering or masking detection
Sides setup Accessing the settings menu of the right and left
sides of the detector
Left side
Active When enabled, the left side of the detector will be
active
Sensitivity
Selection of the sensitivity level of the left side of
the motion detector:
The choice of the sensitivity level is determined
during the detection zone test. If during the test
the detector doesn’t react to motion in 5 cases
out of 5, the sensitivity can be increased
Always active
When enabled, the left side of the detector is
constantly armed and detects motion
Anti-masking
When enabled, DualCurtain Outdoor will detect
masking on the left side of the detector
Right side
Active When enabled, the right side of the detector will
be active
Sensitivity Selection of the sensitivity level of the right side
What is Night mode
Low
Normal (default)
High
Learn more
Learn more

of the motion detector:
The choice of the sensitivity level is determined
during the detection zone test. If during the test
the detector doesn’t react to motion in 5 cases
out of 5, the sensitivity can be increased
Always active
When enabled, the right side of the detector is
constantly armed and detects motion
Anti-masking
When enabled, DualCurtain Outdoor will detect
masking on the right side of the detector
Alert with a siren if motion detected — left
When enabled, the connected to the
system are activated when motion is detected on
the left side of the detector
Alert with a siren if masking detected — left
When enabled, the connected to the
system are activated when masking of the left
side of the detector is identied
Alert with a siren if motion detected — right
When enabled, the connected to the
system are activated when motion is detected on
the right side of the detector
Alert with a siren if masking detected — right
When enabled, the connected to the
system are activated when masking of the right
side of the detector is identied
Jeweller Signal Strength Test Switches the detector to the Jeweller signal
strength test mode.
The test allows you to check the signal strength
between the hub (or ReX range extender) and the
detector and choose the optimal installation
location
Low
Normal (default)
High
Learn more
Learn more
sirens
sirens
sirens
sirens

Detection zone test
Switches the detector to the detection zone test
mode.
The test allows you to check how the detector
responds to motion and masking and to
determine the optimal installation location.
4 test types are supported:
Attenuation Test
Switches the detector to the signal attenuation
test mode.
The test allows you to reduce or increase the
power of a radio transmitter to simulate a
changing environment to test the stability of the
connection between the detector and the hub (or
ReX range extender)
User Manual Opens the DualCurtain Outdoor User Manual in
the Ajax app
Temporary deactivation Allows the user to disable the device without
removing it from the system. Two options are
available:
What is Jeweller Signal Strength Test
Upper detector sensors
Lower detector sensors
Anti-masking sensors
All motion sensors together
What is Detection Zone Test
What is Attenuation Test
Entirely — the device will not execute
commands or participate in automation
scenarios. The system will ignore alarms and
other device notications
Lid only — the system will only ignore
notications about the device tamper
triggering