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Installing the Video Matrix Switcher
6.7 Configuring the Sync
On the VS-1616V, you can select one of the following, as the sync input:
EXTERNAL (“sync in” BNC connector)
INPUT # 1 BNC connector
MTX (Sync from Matrix) RS-485 Terminal Block connector, when using
multiple machines1
Configure the sync via the SWITCHING METHOD Menu command setting2.
When setting up multiple machines (for example, a 48x64 switcher) or a
16x16 YUV switcher, linking a common sync to all the machines may be
necessary to facilitate simultaneous vertical interval switching.
Usually, the easiest method is to choose the sync source from the first
machine (for example, the Y unit in a 16x16 YUV switcher configuration, as
section 6.2.2 describes) and then connect all the terminal block connectors, as
Figure 7 illustrates.
In this case, set the first machine to select the sync source from the external
sync connector or from the INPUT # 1 connector. This sync is now available
to the other machines via the RS-485 terminal block connector, as Figure 15
and Figure 16 illustrate. Select the MTX sync on the other machines that
receive that sync.
6.8 Connecting the KEYBOARD EXTENSION
Connecting dry contact-closure switches to the Keyboard Extension (EXT.
KEYS) connector enables you to route an input to an output by remote control
from a distance of up to 1000 meters. These IN and OUT keys are
expandable3. Figure 18 illustrates how to connect the Keyboard Extension
(EXT. KEYS):
1 Refer to section 8.5.1
2 Refer to section 8.5
3 Add an unlimited number of push buttons to the existing keys (in parallel) by attaching one end of the push button to the
corresponding number and the other end to the IN or OUT
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