Extron electronic 450 Plus Series manual External sync MAV Plus video models only

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.

11Ext(ernal) Sync connector — Connect an external sync signal to this BNC 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	NTSC
12V	+4dBu
0.5A MAX	L 1 R ON
	1	2	3
	-10dBV PAL

1

2

BLACKBURST/

COLORBAR

Extron

BBG 6 A

Black Burst Color Bar

Audio Generator

3 5

OUT

4 6

BLACKBURST

Connect to

MAV Plus AV 3232.

EXT

SYNC

Tee-connector

RESET
ETHERNET	ACT LINK
REMOTE	RS232/RS-422

Terminate cable or connect to another device.

Extron

MAV Plus 3232

Matrix Switcher

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 2-17