External Sync (Mav Plus Video Models Only) - Extron electronics CrossPoint 450 Plus Series User Manual

External sync (MAV Plus video models only)

The MAV Plus switcher switches between inputs during the vertical interval
period, resulting in glitch-free video switching. The MAV switcher can use an
external signal to synchronize switching during the vertical interval. Without the
external sync locking feature, switching between inputs can result in a brief rolling
(sync loss) or a brief change in the picture size.
Ext(ernal) Sync connector — Connect an external sync signal to this BNC
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connection for genlocking the video signal in broadcast or other sync-critical
applications.
Figure 2-21 shows a basic external sync configuration. The Ext Sync
connector receives the timing signal. A tee connector on the connector allows
the signal to be passed on to another video device, if required. Terminate the
tee connector if desired.
BBG 6 A
BLACK BURST/COLOR BAR
/AUDIO GENERATOR
POWER
1 KHZ AUDIO
12V
+4dBu
0.5A MAX
1
L R ON
-10dBV
Figure 2-21 — Simple external sync connection example
Figure 2-22 shows another configuration, in which the timing source passes
through three video cameras and a video scan converter before connecting to
the switcher. This type of video camera is capable of synchronizing with the
external timing source for video editing applications.
CrossPoint 450 Plus and MAV Plus Switchers • Installation
Extron
BBG 6 A
Black Burst Color Bar
Audio Generator
1 3 5
OUT
1 2 3
2 4 6
BLACKBURST/
PAL
COLORBAR BLACKBURST
Connect to
MAV Plus AV 3232.
EXT
SYNC
Tee-connector
RESET
Extron
MAV Plus 3232
Matrix Switcher
Terminate cable or
connect to another device.
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