Systems can be split into sub-systems with different grades of equipment in area where the risk may be higher.
An example of this shown below would be a bank system, where the vault and ATM may be grade 4, but the bank reception area and teller area could be lower grades.
If a system is divided into sub-systems of different grades, then the CIE should be sited within the supervised area with the highest grade.
In grade 3 and 4 systems the CIE should remain protected at all times when setting any sub-system.
|AM PIR||Passive Infra Red Movement Detector, with Anti-mask capability|
|AM DT||Dual Technology Movement Detector, with Anti-mask capability|
All equipment located in the bank reception area would need to be Grade 2 compliant.
All equipment located in the teller area would need to be Grade 3 compliant.
All equipment located in the vault and ATM room would need to be Grade 4 compliant.
|ACE||Ancillary Control Equipment||(eg Exit Terminator Switch)|
|PACE||Portable Ancillary Control Equipment||(eg Remote Keyfob)|
|CIE||Control and Indicating Equipment||(eg Alarm Panel)|
|WD||Warning Device||(eg Bell Box, Sounders, Strobes)|
|ATS||Alarm Transmission System||(Signalling System)|
|ARC||Alarm Receiving Centre||(Monitoring Station)|
|PS||Power Supply||(Power Supply for I & HAS)|