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Satellite Concept Configuration
6.9.1 Satellite Site "Trunk Line" Monitor Outputs
At each of the remote satellite sites, a desired number of monitor
outputs from the switcher must be assigned as Trunk lines. The
number of Trunk lines can range from 1 to the maximum
number of monitor outputs that the switcher provides. Note that
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. If
operators will be stationed at the satellite site, they should be
prevented from accessing the monitor outputs designated as
Trunk lines. This can be accomplished via the Monitor Lockout
tables in either the LTC 8059/00 Master Control Software for
Windows or the LTC 8850/00 Graphical User Interface software
package (see below).
6.9.2 Main Site "Trunk Line" Video Inputs
At the main site, video Trunk line connections coming from
each of the remote site(s) should be connected (and properly
terminated) using any available video input at the main bay.
There are no programming restrictions concerning their
connections, but a sense of order can be maintained if a group of
video inputs are used at the upper end of the system's designed
capacity. This allows the main system to be more easily expanded
in the future with either additional local cameras or additional
Trunk lines. As an example, assume that there are a total of 8
Trunk lines coming from all satellite sites which will be
connected to a main site system designed for 32 inputs. Inputs
25 to 32 can be reserved for the Trunk lines leaving inputs 1 to
24 for local camera connections. If there will be no local camera
inputs, then the Trunk lines can start at the first video input.
6.9.3 Control Data Lines in Satellite Systems
Each satellite site must be provided with an Allegiant control data
line coming from the Signal Distribution located at the Main site.
The Signal Distribution unit is an integral part of the LTC 8100,
LTC 8200, and LTC 8300 Series units. 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 LTC 8780 Series Data Converter
unit which will be used to provide the address decoding functions
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for the satellite site. A LTC 8780 Series is required at each
satellite site and must be given a unique site address number.
If operators will be stationed at the satellite site and are permitted
to control pan/tilt/zoom equipped cameras, a LTC 8569 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 LTC 8780
Series can then be connected to one of the data outputs of the
LTC 8569 Series unit.
6.9.4 Satellite Site Programming Requirements
The optional LTC 8059/00 Master Control Software for
Windows (MCS) or the optional LTC 8850/00 Graphical User
Interface (GUI) software package is required to properly program
a satellite system.
Programming the satellite sites is usually limited to designating
their 'logical' camera numbers to appropriate values via the
Camera ID Table of the MCS or GUI software. If LTC 5112
Series or LTC 5124 Series are being used as satellite switchers, the
starting camera number can be designated using their on-screen
programming menus.
The starting camera number should not be changed in LTC 5112
or LTC 5124 sites where local pan/tilt/zoom equipped cameras
will be used since the LTC 5135 Controller Follower can only
address numbers from 1 to 24.
Note that there can be no duplicate camera numbers anywhere in
the system. Allegiant logical camera designations can be
renumbered to any four digit number on LTC 8100, LTC 8200,
LTC 8300 Series, LTC 8600 Series, LTC 8800 Series, or LTC
8900 Series systems, and any three digits on LTC 8500 systems.
Only two digit camera numbers can be selected with LTC 5112
or LTC 5124 Series switchers.
There are few other restrictions. These camera numbers will be
the numbers entered at both the satellite and the main site
keyboards when camera selections are made. On any
pan/tilt/zoom equipped camera, this logical number must also be
entered as the receiver/driver's site address number.
To maintain a sense of order, it is generally preferable if a satellite
is programmed for a range of camera numbers. For example, in a
three Allegiant type satellite system, the first satellite can be
programmed for camera numbers 1 to 50. Satellite two can be
programmed for camera numbers 101 to 131, and satellite three
can use numbers 201 to 225.
If necessary, the MCS or GUI software Keyboard-to-Monitor
Lockout Table can be programmed in the satellite switcher to
prevent any local operators from inadvertently accessing the
satellite's monitor outputs being used as Trunk lines. Once
LTC 5112, LTC 5124 Series switchers are configured for
satellite operation (via their on-screen menu setup), the monitor
outputs being used as Trunk lines are automatically disabled
from local control as soon as the first commands are received
from the main site.
If operators will be stationed at the satellite site, camera titles
should be entered into the switcher. If desired, these titles can be
selected (explained below) to appear at the main site.
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