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Installation, cont'd
External sync connections (HDXP 3232 only)
d
Figure 2–5 — Simple HDXP 3232 external sync connection example
N I/O grouping is used to set the inputs associated with each reference input.
HDXP Plus Series Matrix Switchers • Installation
2-4
External sync connectors for bi-level and tri-level — Connect an external
sync signal to this BNC connector to genlock the video signal in broadcast or
other sync-critical applications.
The HDXP switchers switch between inputs during the vertical interval
period, resulting in glitch-free video switching when the input devices are
also using the same sync timing. The HDXP can use an external signal to
synchronize switching during the vertical interval. Without this external sync
locking feature, switching between inputs could result in a brief rolling (sync
loss) or a brief change in the picture size.
Figure 2-5 shows a basic external sync confi guration. The Bi-level or Tri-level
sync connector receives the timing signal. A tee connector attached to the
cable 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
1
3
POWER
1 KHZ AUDIO
12V
+4dBu
0.5A MAX
L
1
R
ON
1 2 3
2
4
BLACKBURST/
-10dBV
PAL
COLORBAR
BLACKBURST
Connect to
HDXP Plus 3232.
25
29
GEN-LOCK
22
26
30
23
27
31
24
28
32
PREVIEW
Figure 2-6 shows another confi guration, 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.
Input group 1 is associated with the tri-level signal; input group 2 is associated
with the bi-level signal.
Extron
BBG 6 A
Black Burst, Color Bars,
and Audio Generator
5
OUT
6
Tee-connector
Terminate cable or
connect to another device.
Extron
HDXP Plus 3232
Matrix Switcher
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