 




21
®
OPTIONS
120 12 419 11 318 10 217 9 1
3
224 16 823 15 7
22 14 6
21
13
5
4
5V5V
WARNING
!
RJ45CONNECTORSONTHIS
PANELAREFORCONNECTION
TOKVMEQUIPMENTONLY.
DONOTCONNECTTONETWORKOR
TELEPHONESYSTEMS
4A4A
AUXPWRINMAINPWRIN
ON
2143
POWERCONTROL COM1/UPGRADE COM2/MODEM
KM
USERPORT1
CATxUSERPORTS COMPUTERCONNECTIONS COMPUTERCONNECTIONS COMPUTERCONNECTIONS
Madein
theU.K.
Indooruseonly
OPTIONS
120 12 419 11 318 10 217 9 1
3
224 16 823 15 7
22 14 6
21
13
5
4
5V5V
WARNING
!
RJ45CONNECTORSONTHIS
PANELAREFORCONNECTION
TOKVMEQUIPMENTONLY.
DONOTCONNECTTONETWORKOR
TELEPHONESYSTEMS
4A4A
AUXPWRINMAINPWRIN
ON
2143
POWERCONTROL COM1/UPGRADE COM2/MODEM
KM
USERPORT1
CATxUSERPORTS COMPUTERCONNECTIONS COMPUTERCONNECTIONS COMPUTERCONNECTIONS
Madein
theU.K.
Indooruseonly
CX RCX R

SAM SAMSAM SAM

Slave ServSwitch CX
Master ServSwitch CX
Master monitorSlave monitor
Servers fitted with
dual video heads
Serial
synchronisation
cable

Multiple video head connections

Two or more ServSwitch CX 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 server is fitted with multiple
video cards or video cards with multiple video heads.
Whenever a ServSwitch CX channel is switched, it
sends an RS232 command out on its serial interface
(marked COM1/UPGRADE on the rear panel). A ServSwitch CX 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 ServSwitch CX devices from operating
correctly. For more details about the serial synchronisation cables, see
Appendix 7.
REMOTE
USER
CX R
SERVER
SYSTEM
SAM SAM
REMOTE
USER
CX R
®
724-746-5500
®
®
724-746-5500
®
The local user ports can also
be used to view multiple
video head installations.
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
server to derive its power.
Pairs of SAMs can be strapped
back-to-back with cable ties to
create a tidy installation.