Operating instructions

ALARMS - MONITOR ARMING CODE
The Monitor Arming Code identifies the alarm Display
Clearance methods for the monitor. The Monitor Arming
Code 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 that is properly armed, the
system creates an alarm queue entry for every monitor or
group of monitors that is associated to the alarm contact. If an
alarm contact is not associated to at least one camera and one
monitor, it is ignored by the system.
Alarm Display Methods
The Alarm Display Method specifies the way that video armed
for an alarm is displayed on armed monitors. Multiple types
may be used in one system to allow for a flexible and
controlled response to each alarm event. There are three
Alarm Display Types: Sequence, Hold, and Dual.
Sequence - The camera videos associated with each queued
alarm are displayed on the armed monitor in sequence, at 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 ACN by the
Set Alarm Contacts Menu, page 4-10.
Alternately, the alarmed camera that is currently displayed
on the monitor can be shifted back to the queue before the
completion of the dwell time by pressing the NEXT key.
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. The first alarm is
held on the monitor until it is cleared by the system. The
next queued alarm is displayed and held on the armed
monitor after the currently displayed alarm is cleared. All
alarms are displayed in the chronological order in which
they were received.
Alternately, an alarm that is currently held on the monitor
can be shifted back to the queue by pressing the NEXT key.
The next queued alarm is then displayed and held.
Dual - The camera video associated to an alarm is displayed
on the two monitors that it is associated to, a Hold and 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 is moved to
the Display monitor. When an alarm is moved to the Hold
monitor, it is removed from the Sequence monitor.
Alarm Clearance Methods
The Alarm Clearance method defines the way an alarm is
cleared/removed from the system. The clearing of an alarm is
accomplished by one of three methods: Instant Clear, Auto
Clear, or Manual Clear. These clearance methods remove the
alarms from the system and return the monitors to their
original operating states.
Instant Clear - Clears the alarm automatically when the
alarmed condition is removed. To clear the alarm, reset
(clear) the associated alarm contact at its source. All
alarmed camera inputs remain on their respective monitors
as long as the contact remains active. When the contact is
reset the armed video input is automatically removed from
the armed monitor(s) it is displayed on.
Auto Clear - Clears the alarm automatically 20 seconds after
the alarmed condition is removed. To clear the alarm, reset
the associated alarm contact. All alarms remain on their
respective monitors as long as the contact remains active.
When the contact is reset, and after a 20 second delay, the
alarmed camera is automatically removed from the armed
monitor(s) it is displayed on. This 20 second delay is
intended to catch any momentary type alarms.
Manual Clear - The operator controls the clearance of an
alarm from any keyboard. All alarms remain on their
respective monitors until that monitor is accessed and the
alarm is manually acknowledged. To acknowledge, press
the ACK button while the alarmed video input is displayed
on the armed monitor. Refer to Acknowledging an Alarm,
page 2-5, to manually acknowledge an alarm.
When the alarm is acknowledged, the armed video input is
removed from the armed monitor(s) it is displayed on. If an
alarm contact is armed for more than one monitor, when it
is acknowledged on any monitor it is acknowledged for all
associated monitors.
Note: If the Dual alarm display method is used (see prior
page), the Hold monitor must be selected to remove any
alarms.
Once an alarm has been removed from an armed monitor by
any of the alarm clearance methods, the next chronologically
alarmed camera input is displayed on that monitor.
A-3
APPENDIX