Installing the SDI Video Matrix Switcher
17
6.5 Configuring the Sync
On the
VS-1616SDI
, you can select one of the following, as the sync input:
EXTERNAL SYNC ANALOG BNC connector
INT# 1 DIGITAL BNC connector
MTX (Sync from Matrix) RS-485 Terminal Block connector,
when using multiple machines
1
Configure the sync via the SWITCHING METHOD Menu command
setting
2
. When setting up multiple machines (for example, a 48x64
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, from the
VS-1616V
composite video unit) and then
connect all the terminal block connectors.
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 8 and Figure 9 illustrate. Select the MTX sync on the other machines
that receive that sync.
6.6 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
expandable
3
. Figure 11 illustrates how to connect the Keyboard Extension
(
EXT. KEYS
):
1 Refer to section 8.3.1
2 Refer to section 8.3
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 terminal
