Chapter 6. Dcn Camera Control; Allegiant Video Switcher; Allegiant Switcher Control Keyboards; Cameras And Monitors - Bosch Digital Congress Network Installation And Operating Manual

Digital Congress Network | Installation and Operating Manual | Chapter 6 - DCN Camera Control
Chapter 6. DCN Camera
Control
The 'DCN Automatic Camera Control (DACC) directs video cameras toward speaking conference
participants (e.g. delegates chairman etc.) to display them on a monitor. The DACC has two
possibilities to connect cameras and monitors to the system.
• Via Allegiant Video switcher (AVS) to connect more than one camera and monitor.
• Direct Camera Control (DCC) to connect one camera and one monitor.
6.1

Allegiant Video Switcher

To provide 'DCN' Automatic Camera Control Allegiant Video switchers
equipment are used. For use in DCN stand-alone or PC operator controlled systems, the Video
switcher in combination with the relevant software modules allows video cameras to be configured
for switching and directing towards speaking conference participants (i.e. delegates, chairman etc.) for
display on monitor screens.
The Allegiant Video Switchers control systems and control keyboards are controlled via the DCN
software and programmable via a combination of the Allegiant keyboard and DCN GUI software
modules for DACC in Stand-alone and PC-controlled systems. The maximum number of video inputs
supported by the DCN software is 256.
The following table gives the range of applicable Allegiant Video Switchers.
Series No. of No. of
Video inputs video outputs
LTC 8100 8 2
LTC 8200 16 5
LTC 8300 32 6
LTC 8500 64 8
LTC 8600 128 16
LTC 8800 256 64
The Video Switcher series LTC8200 for example provides 16 camera inputs, and 5 monitor outputs.
Using the Video switchers signal distribution ports, connection to on-site receiver/drivers
(AutoDome™ camera's with pan/tilt motors), provide operator control of pan, tilt, zoom, multiple
pre-fix positions, four auxiliaries, auto-pan and random scan.
The following table provides a survey of type numbers for the range of compact (one bay) Allegiant
video switchers:
Bosch Security Systems | 04-2003 | 3922 988 43318 en
(FIG 6-1) and their associated
Max. No. of
keyboards
2
4
4
8
16
32
Get other manuals https://www.bkmanuals.com
Series 19" rack height European version
(220 - 240 VAC)
LTC 8100 1U LTC 8100/50
LTC 8200 1U LTC 8200/50
LTC 8300 2U LTC 8300/50
Refer to the CCTV Systems Data Book for Allegiant Video switchers, versions
LTC 8500, LTC 8600 and LTC 8800.
NOTE:
All Allegiant switchers shall have firmware 7.2x or higher.

6.1.1 Allegiant Switcher Control Keyboards

At least one keyboard is required for manual control and programming of the Allegiant switcher.
Using the keyboard enables camera preset positions to be defined, manual override of automatic
positions and picture selection. The recommended control keyboard is the LTC 8555 with variable
speed joystick and reduced size.

6.1.2 Cameras and Monitors

A combination of fixed and orientable cameras with remote positioning and zoom lenses are available
for connection to the video switcher. The maximum number being dependent on the number of
available video inputs. Colour cameras are preferred, providing composite video outputs according to
the PAL B and NTSC standards.
Orientable cameras must accept bi-phase control signals as generated by the Allegiant video
switchers. Upon start up, when no microphones are activated or during camera movement from one
position to the next (if enabled in the software) an "overview" picture is shown on the connected
video displays (e.g. monitors, large screen TV's, video projectors). This picture is provided by the
"overview" camera (fixed (preferred) or orientable) which is always connected to video input No.1. If
an orientable camera is used (preferred type 'AutoDome' system) the highest available preposition is
used (software dependent).
NOTE:
For preferred camera types, both fixed and orientable, refer to the DCN Confer-
ence and Discussion Systems Data catalogue.
Video displays, accepting composite video signals according to PAL B or NTSC standard are required
for showing the picture to the operator and audience. A 14" or 17" monitor for the operator with
high or at least medium video performance is preferred. This monitor must always be connected to
video output No.1 of the used video switcher. For preferred monitor types refer to the DCN
Conference & Discussion Systems Data catalogue.
en | 6-1
US version
(120 VAC)
LTC 8100/60
LTC 8200/60
LTC 8300/60
Allegiant Video Switcher
2