Appendix G: Monitor Arming Methods; Alarm Display Method; Alarm Queuing Method; Alarm Clearance Method - American Dynamics MegaPower 3200 Administrator's Manual

APPENDIX G: Monitor Arming Methods

The monitor arming code identifies the alarm display,
queuing, and clearance methods for the monitors.
Note: Refer to APPENDIX H: Monitor Arming
Codes for a detailed explanation of each monitor
arming code.

Alarm Display Method

The alarm display method specifies the way that
alarm video is displayed on multiple armed monitors.
Three different methods can be created:
• Single – The camera video associated with an
alarm is displayed on one monitor specified to
display it. Multiple alarms received for the same
monitor are held in a queue for display in
accordance with the queuing method.
• Block – The camera video associated with an
alarm is displayed on the block of monitors
specified to display it. The video for the first alarm
received is placed on the first monitor in the block
(the lowest numbered monitor). The video for the
second alarm is placed on the second monitor
and so forth through the last monitor of the block.
When all monitors are displaying the alarms and
no alarms have been cleared, subsequent alarms
are held in queue for display in accordance with
the queuing method.
• Dual – The camera video associated with an
alarm is displayed on two monitors specified to
display it. One monitor is defined as a Hold
monitor; the other monitor is defined as a
Sequence monitor. The Hold monitor displays
and holds the first alarm received (Hold Queuing).
Subsequent alarms are queued for display on the
Sequence monitor (Sequence Queuing). Once an
alarm is cleared from the Hold monitor, the next
alarm queued on the Sequence monitor moves to
the Hold monitor.

Alarm Queuing Method

The alarm queuing method defines the way the
armed monitor handles multiple alarms. An alarm
contact must be associated with at least one camera
and one monitor, and at least one monitor must be
armed.
When an alarm is received, the system creates an
alarm queue entry for every monitor or group of
monitors associated to the alarm contact. If an alarm
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contact is not associated with at least one camera
and one monitor, it is ignored.
The two alarm queuing methods are Sequence and
Hold.
• Sequence – The camera video associated with
each queued alarm is displayed on the armed
monitor in sequence with a programmed dwell
time between each alarmed video until cleared by
the system. The dwell time between each camera
video display is programmable for each alarm
contact number.
• Hold – The camera video associated with the first
alarm received is displayed and held on the
armed monitor. Subsequent alarms are held in a
queue. After the first alarm held on the monitor is
cleared, the next queued alarm is displayed and
held on the armed monitor until cleared. All
alarms are displayed in chronological order.

Alarm Clearance Method

The alarm clearance method defines the way an
alarm is cleared (removed) from the system. Clearing
an alarm returns armed monitors to their original
states.
Alarms are cleared using any of five methods: Instant
Clear, Auto Clear, Manual Clear, Instant No Ack, and
Auto No Ack.
• Instant Clear – This method clears the alarm
automatically when the alarm condition returns to
a non-alarming state. For example, a door alarm
may activate when the door opens and return to a
non-alarming state when the door closes. Instant
Clear clears the alarm when the door closes.
• Auto Clear – This method clears the alarm
automatically 20 seconds after the alarm
condition returns to a non-alarming state. Using
the example above, the alarm would activate
when the door opens and return to a non-
alarming state 20 seconds after the door closes.
This 20-second delay is intended to catch any
momentary-type alarms. If the alarm contact
returns to a non-alarming state and then alarms
again—both within the 20 seconds—the alarm
remains in the system without being cleared.
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