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Multiple video head connections
Two or more SC5-IP units can be connected together so that they
operate in a synchronised manner. Synchronised operation is useful
for applications that require multiple video signals to be switched
together. This type of operation is usually required where each
computer is fitted with multiple video cards or video cards with
multiple video heads. Whenever an SC5-IP channel is switched,
it sends an RS232 command out on its serial interface (marked
on the rear panel). An SC5-IP will switch its channel if it
OPTIONS
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.
Note: You must ensure that all SC5-IP units have their Options serial ports set to 'Sync
Units' and that their baud rates are identical. These settings can be made either via the
local
or
global
user configuration menus.
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 SC5-IP devices from operating
correctly. For more details about the serial synchronisation cables, see
Slave monitor
Master monitor
LOCAL
LOCAL
USER
USER
-IP
CONNECTION PERFECTION
-IP
CONNECTION PERFECTION
Serial
CAM
CAM
synchronisation
HOST
COMPUTER
Appendix
7.
Notes
It is recommended that the
second CAM in each pair is a
USB-type and that it is plugged
to a vacant USB port on the host
computer to derive its power.
Pairs of CAMs can be strapped
back-to-back with cable ties to
create a tidy installation.
Computers fitted
with dual video
heads
Slave SC-IP
cable
16
15
OPTIONS
5V
2.0A
12
11
COMPUTER CONNECTIONS
16
15
OPTIONS
5V
12
11
2.0A
COMPUTER CONNECTIONS
Master SC-IP
CAM
CAM
14
13
8
7
6
5
10
9
4
3
2
1
COMPUTER CONNECTIONS
14
13
8
7
6
5
10
9
4
3
2
1
COMPUTER CONNECTIONS
CAM
CAM
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