4. System Configurations
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Note: There are three new output types (commands 81-84) that you can use to indicate
the status of the system: Alarm Confirm, Set Complete and Unset Complete.
Alarm Filtering
The alarm system should either:
a) Have the means to indicate to the Alarm Receiving Centre (ARC) whether
the alarm system is set or unset (open and close signals).
or
b) Be capable of generating a secondary signal identifiable at the ARC as a
mis-operation signal (see Command 36 Alarm Abort).