Wireless alarm control : Playing the vital role      

            The wireless transmission most commonly used for alarm systems is radio frequency technology, using the 868 MHz frequency bandwidth. However, there are still problems, such as interference from concrete walls and limited bandwidth. The careful selection of wireless communication methods suited for the environment helps prevent additional interference and noise.

Alarm control panels make up a key part of an alarm system. Wireless communication allows for easy connection between a variety of devices. The alarm control panel plays a crucial role in intelligent home-network systems for home security. Its functions are growing more and more intelligent to work with other alarm devices or even home appliances. It is usually equipped with a fixed keypad, voice indication and an LCD screen to display detailed information. For the wireless ones, they usually come with a wireless receiver/transmitter. The appearance of Chinese wireless alarm control panels is becoming more aesthetic and lighter in size for use in residential security.

Wireless connection
In some applications and countries, it is hard to install new cables in buildings, so wireless products seem to be a perfect solution. The wireless transmission most commonly used for alarm systems is radio frequency technology, using the 868 MHz frequency bandwidth. However, there are still problems, such as interference from concrete walls and limited bandwidth. The careful selection of wireless communication methods suited for the environment helps prevent additional interference and noise.

Zone expansion
An alarm control panel is usually embedded with a 16-zone expansion capability. For a wireless one, it usually contains eight wired and eight wireless programmable zones. With remote system password restoration, a user’s password and system password can be managed by different authorities. It can arm and disarm remotely, and record audio on the spot.

Other components
Another important function of a wireless alarm control panel is how it works with other components such as detectors, doorbells, sirens and smoke/ fire sirens. The main unit and wireless PIR detector set communication times every 26 hours to check for communication malfunctions. If there is a malfunction, the main console will alert the corresponding zones within 26 hours.
                The slave detector sends reports to the main unit to turn it on or off. The report will be logged for records. It works with wired/wireless sirens, wireless PIR detectors, wireless door/window sensors, smoke/gas sensors and heat detectors.

Final words
Wireless technology enables users to deploy sensors almost anywhere. Automatic arming and disarming, discovery and auto-configuration ability makes the operation and installation fairly easy. However, the practical deployment of installing wireless devices is far more important. For example, optional installation tools or manuals should be provided to make the installation processes easier. Additional information on device placement, signal strength, noise level and relative signal to noise ratios would help users deploy wireless solutions more effectively.