DR-
8000 Video Switching Matrix
-4-
BNC jack for system setting. It also has power synchronization signal generator and 10M network card
transformer
；
l
Video input switching board
a
）
With independent power supply module
（
DC/DC
，
input 24V
，
output 5V
，
-5V
）；
b
）
Independent Single Chip Microcomputer control
；
c
）
16X64 full cross matrix switching
；
d
）
Module ID and function DIP setting
e
）
Video loss detection
l
Video input connection board
This module has 16 video input BNC jacks with impedance selection DIP
（
high or 75
Ω）
,
surge proof
（
grade 1, 500V
）
and EMI protection, 16 channels video looping socket.
l
Video output character screen overlay board
a
）
With independent power supply module
（
DC/DC
，
input 24V
，
output 5V
，
-5V
）；
b
）
Independent Single Chip Microcomputer control
；
c
）
Chinese / English characters screen overlay function
d
）
16X64 full cross matrix switching
；
input bus
：
64 channels
，
select 16 channel according slot ID
；
output bus
：
16 channels
。
Output standard video signal with character overlay
；
e
）
Module ID and function DIP setting
l
Video output connection board
This module has 16 video input BNC jacks, surge proof
（
grade 1, 500V
）
and EMI protection.
n
System schematic figure
Picture 2, System schematic figure
Video input
connection
board
Video out-
put connec-
tion board
Video out-
put connec-
tion board
Control output connection
board
l
RS232 port
l
Ethernet port
l
Internal system control bus
Control board
Setting menu
System control
Configuration data
Internal system control bus
24V switching
power supply
Video input
s w i t c h i n g
board
Video input
s w i t c h i n g
board
Video output
character
screen over-
lay board
Video output
character
screen over-
lay board
Mother board
l
64 channels video output bus
l
Internal system control bus
l
DC 24V power
Video input
connection
board
14
4
14
4
