Philips Allegiant LTC 8500 Series, Instructions For Use Manual

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APPENDIX A
Satellite Systems
A satellite system configuration is usually used for a
large distributed type of system. It may also be used
to obtain extremely large matrix sizes configured in a
more conventional manner. Typically, a single Main
control site can be used to view/control cameras
located both locally and at various remote satellite
sites. Since many remote satellite sites can be linked
to a single Main control site, very large, distributed
types of systems can be achieved. If the satellite
systems are located at the same site as the Main
system, the result is a large conventional type
system. In a satellite configuration, the Main control
site can view/control any camera in the entire system
but the remote satellite sites only have the ability to
view/control cameras associated with their own site.
The satellites may be configured to operate either in
an independent manner or, if desired, have no local
viewing/control capability at all.
The Main site must consist of any Allegiant series
switcher (TC8300, TC8500, TC8600, TC8700,
TC8800, or LTC 8900). satellite site switchers can be
any Allegiant model, a TC8112B switcher, or a
TC8124B switcher. A TC8780 Data converter unit is
required at each satellite site to perform the address
decoding and data conversion for the switching
system. If the satellite site contains pan/tilt/zoom
cameras, a TC8569-2 Code Merger unit is also
required at the satellite site. All products are standard
models and the only required software option is to
include the appropriate Master Control Software
package (TC8x59) or the TC8850 Graphical User
Interface software package for initial programming of
each Allegiant system.
Each satellite site must be provided with an Allegiant
control data line coming from the TC8568 at the
Main site. This data line carries all pan/tilt/zoom
control commands in addition to the switching
commands generated by the Main site switcher. The
control data line should be connected to a TC8780
Data Converter unit which will be used to provide the
address decoding functions for the satellite site. If
operators will be stationed at the satellite site and are
permitted to control pan/tilt/zoom equipped cameras,
a TC8569-2 Series Code Merger unit must be
installed at the satellite site. The Code Merger will
combine the code generated by the main site and the
satellite site so both sites have control over
pan/tilt/zoom equipped cameras located at the
satellite site. The TC8780 can then be connected to
one of the data outputs of the TC8569-2 Series unit.
One or more monitor outputs from each satellite
system are used as 'Trunk' lines to link the remote
sites to the Main site. The number of trunk lines
coming from a satellite site determines the maximum
number of different cameras from that site that may
be viewed simultaneously at the Main site. A
SatelliteSwitcher can provide only as many trunk
lines as it has monitor outputs.
Each remote satellite switcher would be designed
and installed in the usual way except that sufficient
monitor outputs for use as Trunk lines must be
included. The main site switcher is also designed and
installed in the usual way except that camera inputs
sufficient for both local cameras plus Trunk lines
must be included. Obviously, the maximum physical
number of camera inputs or monitor outputs being
used as Trunk lines cannot exceed the capacity of
the system involved. A TC8300 Main site switcher
can receive up to 32 Trunk lines. A TC8500 Main site
switcher can receive up to 64 Trunk lines. A TC8600
Main site switcher can receive up to 128 Trunk lines.
TC8700 and TC8800 switchers can receive up to 256
Trunk lines. A LTC 8900 Main site switcher can
receive up to 4096 Trunk lines.
A single Main site switcher can control multiple
satellite sites. A TC8300 Main site can control up to
32 remote sites. A TC8500 Main site can control up
to 64 remote sites. A TC8600 Main site can control
up to 128 remote sites. TC8700, TC8800 and
LTC 8900 Main sites can control up to 256 remote
sites. If full matrix switching is required at the Main
site, the number of Trunk lines from each satellite
site must equal the number of monitors connected to
the Main site switcher. Multiple, independently
controlled Main site systems can be combined to
provide large numbers of monitor outputs at the Main
site. The various system capacities are listed in the
table below for your reference:
Max. Max.
System Camera Monitor Max. No. of
Type Inputs Outputs Satellite Sites
TC8112B 12 2 Not Applicable
TC8124B 24 4 Not Applicable
TC8300 32 6 32
TC8500 64 8 64
TC8600 128 16 64
TC8700 368 32 64
TC8800 256 64 256
LTC 8900 4096 512 256
Since the Allegiant series switchers can act as Main
site switchers, they provide additional 'logical'
camera numbers used for identifying the location of
the various satellite camera inputs in the system. If
desired, these 'logical' camera numbers can also be
used to provide titles which would appear on the
Main site's monitors for any of the various remote
cameras. Since each camera anywhere in the
system must have its own unique camera number,