DSC TL280LE Guide D'installation page 2

WARNING: Installer please read carefully
Note to Installers
The warningson thispage contain vitalinformation. Asthe onlyindividualin contact
with systemusers, it isthe installer'sresponsibilityto bring each itemin thiswarning to
the attention of allusersof thissystem.
System Failures
Thissystemhasbeen carefullydesigned to be aseffective aspossible. There are cir-
cumstances, however, involving fire, burglary, or other typesof emergencieswhere
it may not provide protection. Any alarm system of any type may be compromised
deliberatelyor mayfail to operate asexpected for a varietyof reasons. Some, but
not all, of the reasonsmaybe:
Access by Intruders
Intrudersmay enter through an unprotected access point, circumvent a sensing
device, evade detection bymoving through an area of insufficient coverage, dis-
connect a warning device, or interfere with or prevent the proper operation of the
system.
Component Failure
Although every effort hasbeen made to make this systemas reliable as possible,
the systemmayfailto function asintended due to the failure of a component.
Compromise of Radio Frequency (Wireless) Devices
Signals may not reach the receiver under all circumstances which could include
metalobjectsplaced on or near the radio path or deliberate jamming or other inad-
vertent radio signalinterference.
Criminal Knowledge
Thissystemcontainssecurityfeatureswhich were known to be effective at the time
of manufacture. It is possible for personswith criminalintent to develop techniques
which reduce the effectiveness of these features. It isimportant that the security
systembe reviewed periodicallyto ensure that itsfeaturesremain effective and that
it isupdated or replaced if it isfound that it does not provide the protection expec-
ted.
Failure of Replaceable Batteries
Thissystem'swireless transmittershave been designed to provide severalyears of
batterylife under normalconditions. The expected battery life isa function of the
device environment, usage, and type. Ambient conditions such as high humidity,
high or low temperatures, or large temperature fluctuationsmayreduce the expec-
ted batterylife. While each transmitting device hasa low batterymonitor which iden-
tifieswhen the batteries need to be replaced, this monitor may fail to operate as
expected. Regular testing and maintenance will keep the system in good oper-
ating condition.
Inadequate Installation
A security system must be installed properly in order to provide adequate pro-
tection. Everyinstallation should be evaluated bya security professionalto ensure
that all accesspoints and areasare covered. Locks and latcheson windows and
doors must be secure and operate as intended. Windows, doors, walls, ceilings
and other building materials must be of sufficient strength and construction to
provide the level of protection expected. Areevaluation must be done during and
after anyconstruction activity. An evaluation bythe fire and/or police department is
highlyrecommended if thisservice isavailable.
Inadequate Testing
Most problemsthat would prevent an alarmsystemfromoperating asintended can
be found by regular testing and maintenance. The complete system should be
tested weekly and immediately after a break-in, an attempted break- in, a fire, a
storm, an earthquake, an accident, or any kind of construction activityinside or out-
side the premises. The testing should include all sensing devices, keypads, con-
soles, alarm indicating devices, and any other operational devicesthat are part of
the system.
Insufficient Time
There may be circumstances when the system will operate as intended, yet the
occupantswillnot be protected froman emergencydue to their inabilityto respond
to the warnings in a timely manner. If the system is remotely monitored, the
response maynot occur in time to protect the occupantsor their belongings.
Motion Detectors
Motion detectors can only detect motion within the designated areas asshown in
their respective installation instructions. They cannot discriminate between
intruders and intended occupants. Motion detectors do not provide volumetric
area protection. They have multiple beams of detection and motion can only be
detected in unobstructed areas covered by these beams. They cannot detect
motion which occurs behind walls, ceilings, floor, closed doors, glass partitions,
glassdoorsor windows. Anytype of tampering whether intentionalor unintentional
such as masking, painting, or spraying of any material on the lenses, mirrors, win-
dowsor anyother part of the detection systemwillimpair itsproper operation.
Passive infrared motion detectors operate by sensing changes in temperature.
However their effectiveness can be reduced when the ambient temperature rises
near or above bodytemperature or if there are intentionalor unintentional sources
of heat in or near the detection area. Some of these heat sources could be heat-
ers, radiators, stoves, barbecues, fireplaces, sunlight, steam vents, lighting and so
on.
Power Failure
Controlunits, intrusion detectors, smoke detectorsand manyother securitydevices
require an adequate power supplyfor proper operation. If a device operates from
batteries, it is possible for the batteries to fail. Even if the batteries have not failed,
theymust be charged, in good condition and installed correctly. If a device oper-
atesonlybyAC power, anyinterruption, however brief, willrender that device inop-
erative while it does not have power. Power interruptions of anylength are often
accompanied by voltage fluctuations which may damage electronic equipment
such asa securitysystem. After a power interruption hasoccurred, immediatelycon-
duct a complete systemtest to ensure that the systemoperatesasintended.
Security and Insurance
Regardlessof its capabilities, an alarmsystem isnot a substitute for propertyor life
insurance. An alarm systemalso is not a substitute for property owners, renters, or
other occupants to act prudentlyto prevent or minimize the harmful effects of an
emergencysituation.
Smoke Detectors
Smoke detectorsthat are a part of thissystemmaynot properlyalert occupantsof a
fire for a number of reasons, some of which follow. The smoke detectorsmay have
been improperlyinstalled or positioned. Smoke maynot be able to reach the smoke
detectors, such as when the fire isin a chimney, wallsor roofs, or on the other side
of closed doors. Smoke detectors maynot detect smoke fromfireson another level
of the residence or building.
Everyfire is different in the amount of smoke produced and the rate of burning.
Smoke detectorscannot sense all typesof fires equallywell. Smoke detectors may
not provide timelywarning of fires caused bycarelessness or safety hazards such
assmoking in bed, violent explosions, escaping gas, improper storage of flammable
materials, overloaded electricalcircuits, children playing with matches, or arson.
Even if the smoke detector operates as intended, there may be circumstances
when there isinsufficient warning to allow all occupantsto escape in time to avoid
injuryor death.
Telephone Lines
If telephone linesare used to transmit alarms, theymaybe out of service or busy for
certain periodsof time. Also an intruder maycut the telephone line or defeat itsoper-
ation bymore sophisticated meanswhich maybe difficult to detect.
Warning Devices
Warning devices such as sirens, bells, horns, or strobes may not warn people or
waken someone sleeping if there is an intervening wallor door. If warning devices
are located on a different levelof the residence or premise, then it is lesslikely that
the occupants will be alerted or awakened. Audible warning devices may be
interfered with byother noise sources such as stereos, radios, televisions, air con-
ditioners, other appliances, or passing traffic. Audible warning devices, however
loud, maynot be heard bya hearing-impaired person.
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