Extron Electronics HDXP Plus Series User Guide - Manual (Page 14)

HDXP Plus Series Switchers • Installation 8
External Sync Connections (HDXP 3232 only)
d
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 5 shows a basic external sync configuration. The Bi-level or Tri-level sync
connector receives the timing signal. A
T connector attached to the cable allows the
signal to be passed on to another video device, if required. Terminate the T connector
if desired.
Extron
HDXP Plus 3232
Matrix Switcher
22
23
24
25
26
27
28
29
30
31
32
LAN
AC
T
LINK
BI-LEVEL
RESET
TRI-LEVEL
GEN-LOCK
PREVIEW
POWER
12V
0.5A MAX L R 1
4
3
2
1
6
5
PAL
NTSC
BLACKBURST
BLACKBURST/
COLORBAR -10dBV
+4dBu
1 2 3
ON
1 KHZ AUDIO
BBG 6 A
BLACK BURST/COLOR BAR /AUDIO GENERATOR
Terminate cable or
connect to another device.
Connect to
HDXP Plus 3232.
T connector
OUT
Extron
BBG 6 A
Black Burst, Color Bars,
and Audio Generator
Figure 5. Simple HDXP 3232 External Sync Connection Example