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 provided by the switcher. Note that the number of trunk lines
coming from a satellite site determines the maximum number of cameras from that site which
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 prevention can be accomplished via the Monitor Lockout Tables in either the LTC
8059/00 MCS or the LTC 8850/00 GUI Software.
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 an 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 technique allows the main system to be more easily expanded in the future with
additional local cameras or trunk lines. As an example, assume there are a total of eight (8)
trunk lines coming from all satellite sites which are 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, the trunk lines can start at
the first video input.
Control Data Lines in Satellite Systems
Each satellite site must be provided with an Allegiant Biphase control data line coming from
the Signal Distribution located 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 an LTC 8780 Series Data Converter unit, which
provides address decoding functions for the satellite site. An LTC 8780 Series is required for
each satellite site, and must be given a unique site address number. If operators stationed at
the satellite site are permitted to control pan/tilt/zoom-equipped cameras, an LTC 8569 Series
Code Merger unit must be installed at the satellite site. In order for each site to have control
over pan/tilt/zoom-equipped cameras, the Code Merger combines code generated by the main
and satellite sites. The LTC 8780 Series can then be connected to one of the data outputs of
the LTC 8569 Series unit.
Satellite Sites Programming Requirements
The optional LTC 8059/00 MCS or the optional LTC 8850/00 GUI Software 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. Note that no
duplicate logical camera numbers are permitted anywhere in the system. Allegiant logical
camera designations can be renumbered to any four-digit number on all Allegiant Series
systems, except the LTC 8500 Series, which is limited to three (3) digits. Few other
restrictions exist.
These camera numbers are the numbers entered at both the satellite and the main site
keyboards when camera selections are made. On any AUTODOME camera or conventional
pan/tilt/zoom-equipped camera, this logical number must also be entered as the receiver/
driver’s site address number.
8.2
8.3
8.4
8.5
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en | Satellite System Configuration Installations
LTC 8900 Series
2015.01 | 10.6 |
Installation Manual
Bosch Security Systems, Inc.
