Figure 8.8: Main Site Sample Program Showing Monitor Start-Up Camera Numbers
Special Programming for “Cascaded” Satellite System
Configurations
In a 3-tier cascaded satellite system, it is highly recommended for the system design to have
more trunks lines between the intermediate master/satellite system and the 3rd level satellite
system than there are between the top level master system and the intermediate system. In
systems where this is not the case, it is likely that operators at top level master and the
intermediate master/satellite will end up fighting for trunk lines coming from the 3rd level
satellite system.
There are two user configuration options available (starting in CPU firmware version 8.70) to
eliminate or at least significantly reduce conflicts between operators when this type of system
is being used.
Option 1: Using Factory default settings, previously selected satellite cameras remain on trunk
lines even after the operator switches back to a local camera view. Although this mode of
operation is more desirable in standard systems because it minimizes delays when previous
satellite cameras are reselected, it is not advantageous to use in cascaded systems. In
cascaded systems, all available trunk lines coming from the 3rd level satellite system may
become used up, making them unavailable to the operators at the intermediate system.
In this situation, keyboard User Function 41 should be set to the NO REM CAM CACHE option
at the master site location. In this mode, after the top level operator selects a locally
connected camera, the trunk line between the top level and the intermediate level system will
immediately be reset to its Start-up camera (as defined in the Monitor Table of the LTC
8059/00 MCS). This action frees the trunk line between the intermediate level system and the
3rd level system so it will be available if needed by an operator at the intermediate level
system.
For the monitors being used as trunk lines in the intermediate system, it is important for the
“Start-up” camera numbers listed in the Monitor Table of the LTC 8059/00 software to be
programmed to specify cameras connected locally or a local unused input (i.e., the raster
generator will be displayed when called up). This action ensures that no trunk line is used
when a monitor switches to the Start-up camera.
Option 2: If the top level master system and intermediate level system in a cascade
configuration can or will be set to operate as “Dual Master” systems, a priority based satellite
camera feature can be configured.
8.7
LTC 8900 Series
Satellite System Configuration Installations | en
65
Bosch Security Systems, Inc.
Installation Manual
2015.01 | 10.6 |
