Components of Home Security Systems

Home security equipment varies by company but, generally, it is comprised of the following basic components to provide protection against intruders and burglars.

Keypad: The keypad has two main functions. It initiates security commands and observes the status of the system. The actual pad is made up of two parts, the alphanumeric keypad and the LED display. It is typically installed near the door most frequently used, whether the front or backdoor. Installing it here makes it more convenient to arm or disarm the system as you exit or enter the house. Most keypads include a panic switch allowing the alarm to be activated immediately in the event there is an emergency. The bypass function is another useful feature, allowing the homeowner to bypass those areas where people may be present which would otherwise active the alarm.

Sensors: Sensors protect both the outside of the house and the open spaces within the home. The most common sensors used inside are magnetic door switches and window vibration detectors, which are installed on doors and windows to help prevent intruders from entering the house. Space protection sensors can be installed in interior rooms of the house or the hallway, for instance, to detect when intruders may be in these areas.

Door switches: Door switches have both a switch and a magnet. The switch is sensitive to a magnetic field which is mounted on a structure such as a frame, for example. The magnet is mounted on a nearby door. When the door is opened, the magnet moves away from the switch causing the switch to open and active the alarm.

Window acoustic and vibration detectors: This equipment can detect the sound of breaking glass which triggers the alarm. This helps protect your home from unwanted intruders entering by breaking the glass to your sliding door or windows.

Motion detectors: These detect change in infrared energy and set off an alarm when intruders enter the open space it oversees. Three models are available: standard, pet-friendly or harsh-environment.

Security panels: This device is the core of a home security system. Security panels monitor the sensors, provider power, handle the programmable options and connect the telephone line to the monitoring system.

Other components to a home security system include cameras, monitors and switchers. Monitors help display the images and information processed by the camera, which is transmitted to the monitor through coaxial cables connected to the camera. Switchers enable the monitor operator to switch to different cameras, which is useful when there is a lot of space to monitor.

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