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There are four mainstream signalling types for the purpose of remote monitoring of Alarms.
Redcare offers three levels of security – Classic, GSM and Secure.
Redcare GSM is the most widely used because of dual path signalling, meaning it uses both phone line and a GSM path to communicate to the Alarm Receiving Centre (ARC). Both signalling paths are constantly polled to verify the communication link is working. The ARC will therefore know straight away if there is any line fault or failure.
Until recently it was the industry standard and specified universally by insurance companies nationwide. However, the product is limited to use with a BT line only and with growth in third party line providers a gap in the market has opened for an alternative products.
Emizon is a security signalling platform that has been designed specifically to provide an IP solution for secure monitoring.
Emizon has been designed to replace the traditional PSTN phone line that is usually required for dual path signalling. It is dual path by using both wireless technology and the on-site broadband connection. With these combinations in place, Emizon is fast becoming the chosen solution for many sites and particularly when upgrades are recommended.
With many companies providing CCTV security across the broadband link as well it is also ensures CCTV pictures reach the central station as well as intruder alarm signals.
Emizon is 21CN compatible and allows remote maintenance to be carried out through an onboard RS485 link to the intruder alarm.
The Emizon platform will work on any standard broadband service, providing a future proof service. The Emizon TDC is not site specific so can easily be relocated if businesses relocate to new premises.
DualCom is also a dual path signalling device that works on any standard telephone line. It comes as a grade 2, 3, or 4 unit – the difference being the polling frequency. DualCom GPRS, from CSL DualCom Limited, is an intruder alarm signalling device that uses the mobile network and your telephone and/or IP path to transmit intruder, fire and personal attack signals at high speed.
CSL DualCom have pioneered a single hardware platform which fits every grade of security risk, right the way from Grade 2, 3 and 4 Security installations to the highest specification of Fire signalling grades.
Digicom is an established but basic solution it remains reliable and low cost, the unit has the capacity to send 8 different channels of information to the ARC. It uses just a single path via a telephone line. As a line fault means there is no communication capability a test signal is sent at least every 24 hours to monitor the line. The ARC will notify the customer in the event a test signal is not received.
