What Is A Security System P - Detection Systems DS7060 Instruction Book

WHAT IS A SECURITY SYSTEM?
An alarm system is made up of a number of sensing devices (sensors) that are wired back to
a control panel. A keypad, which is usually placed near one or more entry doors is also
connected to the control panel. The keypad is used to turn the system on and off and also for
other functions like testing the system. Usually, if access permits, the control panel and
wiring are concealed in a cupboard. The control panel is connected to the mains power using
a low voltage transformer. This transformer should never be turned off.
The control panel also has its own backup battery which is a rechargeable type. This backup
battery will supply power to the system in case of mains failure. It should be replaced every
three to five years.
The number and type of sensors in your system will vary depending on your needs or your
budget. Door and window switches may be placed on doors or windows to detect opening
and motion sensors may be installed in rooms requiring protection or in an area where an
intruder is likely to move. Bear in mind that these sensors cannot see through walls or other
obstructions. Your installer will position these sensors depending on wiring access and your
needs.
Some sensors are designed to detect glass breaking, others vibration. In addition, smoke
sensors may be installed to provide early warning of a fire. These may be battery operated or
preferably hard wired into your security system. In all cases, these devices cannot guarantee
complete protection against injury or loss in the event of a fire or burglary.
Usually your security system is also connected to a telephone line. Your security system
transmits alarms and other messages through your telephone line to a monitoring centre. On
receiving an alarm, the monitoring centre carries out your instructions such as contacting
the police or a patrol service. In addition, your system will usually be equipped with sirens,
bells and or a strobe light. These are designed to warn you in case of fire or intrusion and as
a deterrent to a burglar. Noise regulations vary from state to state but in most cases require
that after an alarm, sounders must turn off within a preset time, usually around five minutes.
Your installer will advise you about these requirements.
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