Extron electronic MAV 48 External sync connection, Shows a basic external sync configuration

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.

10Sync In connector — Connect an external genlock signal to this BNC connector for genlocking the video signal in broadcast or other sync-critical applications.

11Sync 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.

					BBG 6 A
					BLACKBURST AND AUDIO
					GENERATOR
					POWER		1 KHZ
					12V
							AUDIO
					.2A MAX	L		R
100-240V 0.3A	INPUTS				OUTPUTS
1	3	5	7	1	3			5
2	4	6	8	2	4			6

				BLACKBURST
	NTSC	BLACKBURST	1	3	5
+4
ON
1	2	3	2	4	6
-10	PAL		COLORBARS

	SYNC
7	IN	L	1	R
8	OUT	L	2	R

Extron

BBG 6 A

Black Burst/Color Bar/ Audio Generator

50-60Hz

Extron
MAV 88 AV	To next device
Matrix Switcher
	or terminate.
IN

Figure 2-8 — Simple external sync connection example

MAV 44 / 48 / 84 / 88 Matrix Switchers • Installation 2-7