Seize Control
Only one keypad may control a camera station at a time. A keypad may seize the control of a camera station
from a keypad with a lower priority. Priority levels are set using V1422 programming screens. Refer to the
NO VA
CPU-Based Control and
System
Seize control may be set to Automatic or Manual through the programming screens. If the seize control was
set to Automatic, a keypad may seize the control of a camera station from a keypad with lower priority by
sending any command to the camera station (pan, tilt, etc.). For manual seize control, the
key must be
pressed before the seize can take place.
Note: a remote keypad
mode (referred as Receiver Type:
the
PA CP pane/), the seize control must be set
Auto in the
screens.
Alarm
The LCD will display an ALARM! message if one or more alarms have been activated. An active alarm is
acknowledged by pressing the ALARM key. Acknowledging an alarm removes it from the stack of active
alarms. The stack mode determines whether each alarm monitor may have its own list of active alarms
(independent stack mode) or if one list is common to all alarm monitors (common stack mode). Figures 11
and 12 illustrate common stack mode and independent stack mode, respectively.
Figure IA, the Edit Alarm Call-Up programming screens are shown for two alarms. The initial conditions
are as follows (refer to
NOVA
CPU--Based
and
Sysfem
X834
for more information):
.
common stack mode
.
FIFO (first-in, first-out) order
.
alarm 1 is activated before alarm 2.
Figure
illustrates
video from specific camera stations at specific preset positions. All of these
camera/preset combinations are associated with either alarm 1 or alarm 2 as shown in Figure 11 A, except for
the video from camera 10 at preset 1. The video from camera 10 at preset 1 is defined to be the video
displaying on monitor 3
any alarms are activated. Figure 11 C illustrates the video displayed on monitors
1, 2 and 3 when alarm ‘I is activated. As shown in Figure 11 A, an active alarm 1 was programmed to display
video from camera 1, preset
on monitor 1 and to display video from camera 20, preset 2, on monitor 2.
Because the Edit Alarm Call-Up screen for alarm 1 does not include monitor 3, it will continue to display
alarm video (camera 10, preset 1). When alarm 1 is acknowledged on either monitor 1 or monitor 2, alarm
video from alarm input will display, as shown in Figure 11 D. Because all three monitors were included in the
Edit Alarm Call-Up for alarm input 2, alarm video displays on all alarm monitors. Alarm 2 may be
acknowledged from any alarm monitor
or 3).
28
l
Operation
X826 Rev 798 NOVA V1422