Remaining alarms are acknowledged in this same manner, with one ALARM key press to halt sequencing and
another ALARM key press to acknowledge the alarm and resume sequencing. When all alarms for the
currently-selected alarm monitor are acknowledged, the alarm monitor will display the pre-alarm video, blank
the screen, or leave the last alarm video onscreen, depending upon the choices made during programming.
Refer to the
screen, discussed in
NOVA
X834, for more information. If the Vi422 was
programmed to use common stack mode, alarm processing is finished.
If independent stack mode is used, there may be active alarms on other alarm monitor stacks which may not
be viewed using the currently-selected alarm monitor stack. This can occur because of camera-to-monitor
partitioning; alarms from cameras which are not partitioned to the currently-selected alarm monitor cannot be
viewed on that monitor. Therefore, active alarms may remain in the system although all alarms that may be
viewed on the currently-selected monitor have been acknowledged. In this case, the next press of the ALARM
key will select the
lowest-numbered alarm monitor, and the sequencing alarm process will begin again.
When all alarms have been acknowledged from all alarm monitor stacks, the selected alarm monitor will
restore pre-alarm video, blank, or take no action, depending upon programming definitions.
X826 Rev 798 NOVA V1422
Operation 33