EN
| 36
Bosch Security Systems | 02 April 2004
LTC 8850 |
Instruction Manual
|
Allegiant Server
Video Loss Display
When the Video Loss Display field has been checked,
any video input that experiences video loss will be
switched to the corresponding monitor. The monitor
will display the normal camera identification and status
information along with the message VIDEO NOT
PRESENT! This feature is available in CPU software
revision 7.6 and higher, but is not applicable to
LTC 8500 Series systems.
In addition to the Monitor Table option, A
configuration option is available in the Keyboard Table
and a video loss screen is included in the Real Time
Status part of the program and (refer to appropriate
sections for more details).
To enable video loss monitoring, select the option
using the
Auto Set/Video Loss Configuration
menu. Once
enabled, configured monitors and keyboards will
respond to video loss events. In addition, the alarm
output relay corresponding to the monitor number that
is displaying a channel without video is manually
selected for viewing on the monitor.
When using LTC 8100, LTC 8200 and LTC 8300
Allegiant systems, the alarm output relays are found on
the rear panels of the enclosures. When using other
Allegiant models, the alarm output relays are provided
by the LTC 8540 Alarm interface accessory unit.
Start-up Camera
The start-up camera column is used to set the camera that
the monitor will display on a
cold-start
. A
cold-start
occurs only when battery-backed memory has been lost.
3.2.6.3 Alarm Tables
This service allows configuration of the alarm options
in the Allegiant system.
Alarm Wizard
The Alarm Wizard is composed of a sequence of
dialogs that allows the user to configure a predefined
set of alarm characteristics. The Alarm Wizard
accomplishes this by activating existing alarm tables
within the Allegiant product server and by displaying
instructions on how to edit the tables. When the user is
finished with the sequence of dialogs, the alarm tables
will be set up with specified alarm characteristics.
Alarm Type Tables
Alarms can be configured as
Normal, Switch,
or
Custom
alarms. A
context
menu provides these
selections. Only alarms configured as Type Normal
cause Allegiant alarm processing.
Switch
and
Custom
alarm types use the alarm signaling mechanisms to
perform non-alarm tasks. More information on the
three types of alarms follows.
Figure 71 Alarm Type Configuration Table
Alarm Normal Table
For
Normal
alarms, the system's alarm response can
be configured using preprogrammed options or
customized using the selections described as follows.
The preprogrammed options can be selected via the
Auto Set button in the
Alarm/Normal
tables. These
default options duplicate the selections available via a
standard system keyboard in the base Allegiant system.
In some cases, editing of the Group Table can be made
easier by first resetting the system to the default
configuration closest to the desired alarm setup. The
Auto Set feature is not applicable to LTC 8900
systems.
Alarm Normal Groups Tables
The Group Table is used to organize alarm monitors
into groups. For example, if there are two separate
control rooms, a monitor group may be configured for
each room. Whenever a
group
is discussed, it refers to
a group of monitors. These groups of monitors
respond to alarm conditions by displaying alarm video.
Each alarm input point may be associated with one or
more cameras. Each alarm can be
armed
for zero or
more monitor groups. When an alarm is activated, it
sends the video from its cameras to each group for
which it is armed. When a group receives this video
from an alarm, it displays it on one or more of its
monitors. The exact behavior of each alarm monitor
