®
INDOOR
USE
ONL
Y
5V
4.0A
4
12
3
11
2
10
1
9
8
16
7
15
6
14
5
13
OPTIONS
COMPUTER CONNECTIONS
COMPUTER CONNECTIONS
INDOOR
USE
ONL
Y
5V
4.0A
4
12
3
11
2
10
1
9
8
16
7
15
6
14
5
13
OPTIONS
COMPUTER CONNECTIONS
COMPUTER CONNECTIONS
SAM
SAM
SAM
SAM
Slave ServSwitch CX Quad IP
Master ServSwitch CX Quad IP
Master monitor
Slave monitor
Computers fitted
with dual video
heads
Serial
synchronization
cable
Multiple video head connections
Two or more ServSwitch CX Quad IP units can be connected
together so that they operate in a synchronized manner.
Synchronized 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 ServSwitch CX Quad IP channel is switched, it sends
an RS232 command out on its serial interface (marked
OPTIONS
on
the rear panel). An ServSwitch CX Quad IP 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.
Note: You must ensure that all ServSwitch CX Quad 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
user configuration menus.
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 ServSwitch CX Quad IP devices
from operating correctly. For more details about the serial synchronization cables, see
Appendix 8
.
Notes
It is recommended that the
second SAM 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 SAMs can be strapped
back-to-back with cable ties to
create a tidy installation.
LOCAL
USER
HOST
COMPUTER
SAM
SAM
®
724-746-5500
®
LOCAL
USER
®
724-746-5500
®
