Siemens FC901-U3 Installation, Operation And Maintenance Manual page 74

To configure an event to be reported to Account 1 and Account 2, set it to Must report on both.
If the event needs to be reported to either Account 1 or Account 2, set it to Can report on both.
If it has to be reported to Account 1, but only needs to be reported on Account 2 if Account 1 is
temporarily out-of-order, set the event to Must Report on Account 1 and Can Report on
Account 2.
Following are examples for illustration purposes.
Scenario 1 – Must/Must
Alarm Event is set to Must Report on Account 1 and 2.
Step 1:
Panel goes into alarm.
Step 2:
Panel tries to send event
to Account 1, but is
unsuccessful.
Step 3:
Panel keeps trying to send event to Account 1 until the programmed Number
Of Attempts has been reached.
Step 4:
Panel switches to Account
2 and attempts to transmit,
but is unsuccessful too.
Step 5:
Panel keeps trying to send event to Account 2 until the programmed Number
Of Attempts has been reached.
Done.
Note: If both accounts failed to send an event within configured Number of Attempts, the event
will be discarded and a message lost condition will be declared on panel. This means the
panel will not try infinitely to send an event and each account can try at most (programmed
Number of Attempts) times. This applies to all Scenarios of DACT transmission.
N Account 1
Account 2
Account 1
N Account 2
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