Switching Options Using A Personal Computer - Bosch Digital Congress Network Installation And Operating Manual

Digital Congress Network | Installation and Operating Manual | Chapter 6 - DCN Camera Control
6.3

Switching options using a personal computer

Using the communication port (COM-port 2) of a PC, a wide variety of communication and
switching options are available. For example, video cameras can be switched and directed towards
speaking delegates when a VCS (Video Control Switcher) is connected to the PC. Using DCN's
2
Microphone Management software LBB 3570, and/or Synoptic Microphone Management software
LBB 3571, cameras can be switched corresponding to the status of delegates' microphone actions.
Directing a camera towards a speaking delegate is done using motor driven pan/tilt equipment,
programmed and linked according to the microphone activity function which can be activated within
the mentioned software packages.
NOTE:
Using this method of switching options is a custom made alternative for 'Automatic
camera' control with Allegiant video switchers. The equipment required including the software
are NOT supplied by BOSCH Security Systems. See also the DCN manual for External Inter-
faces.
FIG 6-5 gives an example, showing the method used to switch and direct video cameras using the
PC's COM 2 port and a video control matrix. Using the PC's RS232 communication port, video
recording equipment can also be switched.
Table 5-10: and Table 5-11: show the default COM-port setting.
The data format for RS232 communication
Microphone on: $1 <SEAT NUMBER> CR LF
Microphone off: $2 <SEAT NUMBER> CR LF
Request on: &1 <SEAT NUMBER> CR LF
Request off: &2 <SEAT NUMBER> CR LF
All requests off: &3 0000 CR LF
Priority on: #1 <SEAT NUMBER> CR LF
Priority off: #2 <SEAT NUMBER> CR LF
Bosch Security Systems | 04-2003 | 3922 988 43318 en
5
FIG 6-5 Using microphone activity for video switching
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Key to symbols
1. DCN trunk-line
2. COM-port 2
3. Video OUT
1
4. Video IN
5. Control signals for camera
2
VIDEO CONTROL
SWITCHER
3
4
Switching options using a personal computer
en | 6-8
system