Section 19 – System Operation
19-13
Alarm/Trouble Memory
There are 80 memories that serve to store off-normal conditions for each input point in the system, as
well as to store system trouble conditions. Once stored in memory, the contents remain stored until the
off-normal condition has been restored to normal and a RESET command has been entered at the
operating panel. The following is a listing of the memories and an explanation of the function:
Memory Type Function
BA Group
Memories
There are 64 separate burglar alarm memories, eight for each BA group.
Four memories of each BA group store the first four off-normal conditions
that are detected during Day Set, and the other four memories store the
first four off-normal conditions that occur during Nite Set. The off-normal
conditions include point in alarm as well as the occurrence of a trouble,
tamper, or comm-fail condition.
Holdup Memory
Stores the first four holdup points for which an alarm is detected.
Fire Alarm Memory
Stores the first four fire points for which an alarm is detected.
Supervisory
Memory
Stores the first four supervisory points for which an alarm is detected.
Trouble Memory
Stores the first four of the following events that occur:
•
Holdup Point - comm fail, tamper, or open lasting more than 1 minute
if using holdup suspicion option.
•
Fire Alarm Point - open, tamper, or comm fail condition.
•
Supervisory Point - open, comm fail, or tamper.
•
Operating Panel - comm fail.
•
Janitor Keyswitch Point - open, tamper, or comm fail.
•
BA Keyswitch Point - comm fail.
•
Remote Bell Point - cross, open, or comm fail. Cross indicates AC fail for
4 hours; open indicates low battery.
•
Remote Power Supply Point - cross, open, or comm fail. Cross indicates
AC fail; open indicates low battery.
If a given type of memory becomes filled, it will not store a new alarm unless one of the alarms being
stored is reset.
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