Home Security - System Options
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Home security intruder alarms fall into two categories and these are audible only security systems and monitored security systems.
Audible Only Home Security Systems
In the case of audible only home security, the intruder alarm is reliant on the internal and external sounders to provide an audible and visual indication that the security system has been set off.
These alarms are very effective systems in circumstances where people may intervene in the event of an alarm activation such as in a domestic property with a good neighbourhood presence.
Monitored Home Security Systems
A monitored home security system is connected to an alarm receiving centre. In the event of the intruder alarm activating, in addition to an audible alarm, a signal is transmitted to the alarm receiving centre, who will then be instructed to contact your nominated keyholder and / or the Police.
There are diverse methods of notification with various levels of security:
Digital Communicator
This simple method will transmit on a dedicated channel by using a telephone line and dialling to an alarm receiving centre when:
- The alarm is set / un-set
- It's in alarm
- It has confirmed activations
- Detectors are omitted
- A fault condition occurs
It is advised that a dedicated incoming call barred telephone line is used for this method of notification. This is to prevent someone dialling the telephone number and stopping any signals from being transmitted. It must be noted that from a digital communicator you will incur call charges on the telephone bill and because the telephone line is not monitored, if it is cut or disconnected the alarm system is reliant only on the external and internal sounders.
Redcare Classic
This is a secure method of monitoring that connects an intruder alarm to an Alarm Receiving Centre via a British Telecom analogue telephone line. Features of this include:
- The line is monitored 24 hours a day
- Keyholders will be notified of any interruptions
A coded data signal randomly interrogates the alarm to establish its state. As all transmissions are in the form of data, all signals are transmitted to the centre, irrelevant of whether the line is in use and without incurring telephone call charges.
Redcare GSM
This method of transmission is via dual path signalling. The intruder alarm is connected to an alarm receiving centre primarily using a BT analogue telephone line and secondly by a radio pad utilising the o2 cellular telephone network. Features are the same as Redcare Classic, with the added benefit that if one path fails, the signal will be transmitted via the other course.
Dualcom GPRS
This also utilises two signalling paths, primarily via the Vodaphone cellular network and secondly via a telephone landline. This system is not dependent on BT being the telephone landline provider, and can be connected to an extension of an existing telephone system. The manufacturers have also adapted this equipment to allow transmissions over GSM and IP signal path.
Additional Options / Features
Home security intruder alarm systems can be specified using a wide range of equipment including control panels, sounders and detectors. With the correct design, installation and programming, the alarm system can give the required amount of protection to any property or premises.
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