Extron Electronics MAV 44_48_84_88 Series User Guide - Manual (Page 23)

2-7 MAV 44 / 48 / 84 / 88 Matrix Switchers • Installation
Using the hardwired IR input on pin 9, you can use a control system with
IR-learning capabilities to operate the switcher just as if you were using an IR
501 remote control. The control system must first “learn” the IR command
from an IR 501, after which it sends the same commands to the MAV via
pin 9.
External sync connection
The MAV 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.
10 Sync In connector — Connect an external genlock signal to this BNC
connector for genlocking the video signal in broadcast or other sync-critical
applications.
11 Sync Out connector — Connect any downstream equipment that requires
genlocking to this BNC connector to route the external sync signal throughout
the system in broadcast or other sync-critical applications.
Figure 2-8 shows a basic external sync configuration.
100-240V 0.3A
50-60Hz
INPUTS OUTPUTS SYNC
IN 1
2 3
4 5
6 7
8
OUT
1
2 3
4 5
6 7
8 L R 1
L R 2
POWER
12V
.2A MAX L R
4
3
2
1
6
5
PA
L
NTSC
BLA
CKB
URST
BLACKBURST
COLORBARS -10
+4
1 2 3
ON
1 KHZ AUDIO
BBG 6 A
BLACKBURST AND AUDIO
GENERATOR
Extron
BBG 6 A
Black Burst/Color Bar/
Audio Generator
To next device
or terminate.
IN
Extron
MAV 88 AV
Matrix Switcher
Figure 2-8 — Simple external sync connection example