11
4
3
2
1
USB2.0
SWITCHED
USB 1
USB 2
5V
2A
INDOOR USE ONL
Y
USER
CONSOLE
OPTIONS
4
3
2
1
USB2.0
SWITCHED
USB 1
USB 2
5V
2A
INDOOR USE ONL
Y
USER
CONSOLE
OPTIONS
Slave AV4PRO-DP
Master AV4PRO-DP
Master
monitor
Slave
monitor
Computers fitted
with multiple
video heads
Serial
synchronisation
cable
Synchronising multiple units
Two AV4PRO-DP units can be connected together so that
they operate in a synchronised manner.
Whenever an AV4PRO-DP channel is switched, it sends
an RS232 command out on its serial interface (marked
OPTIONS
on the rear panel). An AV4PRO-DP unit will switch
its channel if it receives the same command on its serial
interface. Consequently, by linking the serial interfaces, a
master unit may be made to automatically switch one or
more slave units as shown in the diagram.
It should be noted that the synchronisation cable deliberately
does not have the transmit pin of the Slave End connector
linked to the receive pin of the Master End connector. To do
so would cause the Slave unit to be able to switch the Master
unit. This would setup an endless cyclical switching sequence
that would prevent the AV4PRO-DP devices from operating
correctly. For more details about the serial synchronisation
cables, see
Appendix 1
.
