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Chapter 3: Installation
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Page 15
3.3 Synchronizing multiple units
Two Wizard DP USB units can be connected together so that they operate in a synchronized manner.
Whenever an Wizard DP USB channel is switched, it sends an RS232 command out on its serial interface (marked OPTIONS on the
rear panel). An Wizard DP USB 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 synchronization 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 Wizard DP USB devices from operating correctly. For more
details about the serial synchronization cables, see A.1 Cable pin-outs.
4321
USB2.0
SWITCHED
USB 1
USB 2
5V
2A
INDOOR USE ONLY
USER
CONSOLE
OPTIONS
4321
USB2.0
SWITCHED
USB 1
USB 2
5V
2A
INDOOR USE ONLY
USER
CONSOLE
OPTIONS
Master
Wizard DP USB
Master
monitor
Slave
monitor
Computers fitted
with multiple
video heads
Serial
synchronization
cable
Slave
Wizard DP USB
Figure 3-12. Connection layout for synchronized operation