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444 | Wireless Local Security Network (wLSN) | wLSN Peripherie
wLSN Dual Motion Detec-
tors
Features
▶
First Step processing (FSP), flexible mounting height,
supervised microwave, and temperature compensation
with no adjustment necessary
▶
Draft, insect, and pet and animal immunity
▶
Eight detection layers including look down zones
▶
Externally-visible LED indicates test status and RF
signal strength
▶
Determine suitability of chosen installation location
with RF Signal Strength (RFSS) mode
▶
Supervised for low-battery, cover-tamper, and wall-
tamper conditions
▶
Operates up to 3.5 years on readily-obtainable AA
batteries
The wLSN Dual Motion Detectors are small, unobtrusive
detectors that are simple to install and do not require field
adjustments. They have a dense zone pattern with 79 zones
in eight layers. Passive infrared and microwave processing
provides excellent catch performance with freedom from
false alarms. They are available with a choice of microwave
frequency:
9.350 GHz ISW-BDL1-W11PKX
10.525 GHz ISW-BDL1-W11PGX
10.588 GHz ISW-BDL1-W11PHX
Functions
Signal Processing
The detectors use passive infrared and microwave
technologies to provide an alarm condition when both fields
of protection are simultaneously activated. Alarm signals
must meet the signaling requirements of both technologies
to activate an alarm. Microwave range is factory set, but can
be adjusted.
First Step Processing
First Step Processing (FSP) allows for instant response to
human targets without sacrificing false alarm immunity to
other sources. By adjusting its sensitivity based on signal
amplitude, polarity, slope, and timing, FSP eliminates the
need for the installer to select the sensitivity levels for the
application.
Microwave Signal
Adaptive processing adjusts to background disturbances.
This helps to reduce false alarms while maintaining catch
performance.
Supervised Microwave
Patented fully-supervised microwave circuitry provides
single technology (PIR) coverage in the event the
microwave subsystem fails.
Pet and Animal Immunity
The detector is able to distinguish between signals caused
by humans and signals caused by one or two animals with
a combined total weight of 45 kg (99 lb). This provides
immunity to false alarms while maintaining proper catch
performance of human targets.
Draft and Insect Immunity
The sealed optical chamber provides immunity to drafts and
insects.
Temperature Compensation
Automatically monitors the ambient temperature and
adjusts the signal processing to maintain proper catch
performance in critical temperature ranges.
RF Signal Strength Mode
Removing the device cover and pressing the tamper switch
four times within 10 seconds of battery installation
activates the RF signal strength mode. The LED lights steady
for 5 sec and then begins to flash. A slow flash
(approximately 1 sec on, 1 sec off) indicates insufficient
signal reception. A quickly flashing LED (approximately five
times as fast as the slow flash) indicates the device is
receiving sufficient signal from the wLSN Hub.
Bosch Security Systems B.V. www.boschsecurity.com
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