Kramer Electronics VS-3232V User Manual
Page 23
Connecting the Video Matrix Switcher
19
6.3.4
The System Mode
versus the Master/Slave Mode
The Follow mode seems similar to the Slave mode since in both modes the
unit switches via commands from another unit. Table 5 summarizes the
differences between the System mode and the Slave mode:
Table 5: The System Mode versus the Slave Mode
System Mode
Slave Mode
The unit can be switched in the Follow or Breakaway
mode at any time, depending on the current application
requirements.
The unit always follows the Master. It cannot be set in
the breakaway (stand-alone) mode without turning off
and rewiring.
Any unit can be turned on or off at any time.
The Slave unit can be turned ON only after full
initialization of the Master unit.
6.4 Connecting a Control Interface
You can connect a control interface (RS-232 or RS-485). The control interface
must be identical on each switcher in the series of 32x32 matrix switchers;
either RS-232 or RS-485. One control interface suffices. Do not use both
RS-232 and RS-485 control interfaces in the same configuration. For example,
in an interconnected varied-format 32x32 switcher application, if the switcher
that connects to the PC connects via the RS-232 control interface, each
switcher must interconnect via the RS-232 control interface and not via the
RS-485 control interface.
You may transfer from one interface to another via the Kramer
VP-43xl
Interface Converter
1
.
You can choose the RS-232 control interface, if the range is < 25 meters for
each point-to-point connection.
For greater ranges, you can choose the RS-485 control interface, and operate
the switcher from an extended distance of up to 1000 meters.
1 For more information on the VP-43xl, go to our Web site at http://www.kramerelectronics.com