Alarm Confirmation Technology
As required by DD243 an alarm system is required to provide evidence of a confirmed activation - there are three types of confirmation. Audible, Visual and Sequential.
With audible confirmation, the first detection will open up an audio link so that trained operators at the Alarm Receiving Centre can listen to the premises and judge if the alarm is genuine. The call will then be passed to the Police where appropriate.
With visual confirmation, the first detection opens up a CCTV path so staff at the Alarm Receiving Centre can view key areas within the site, and judge if the alarm is genuine. The call will then be passed to the Police where appropriate.
This is the most popular form of confirmation. With sequential confirmation, the alarm system is designed in such a way that gives separate alarm indications from different detection devices , one after another within a time window. The second confirming that the first was not caused by fault or false alarm.
Communication Path Losses
For the purposes of Alarm Confirmation the loss of either radio or landline communication paths followed by a single zone activation will result in Police Response. Also in the unlikely event that both communication paths fail this is also regarded as a Confirmed Alarm and will generate Police Response.