Filter
Top Products
SIS Programming
and Control
This section describes SIS programming and control of the MVC 121 Plus, including:
• Connection Options
• Command/Response Table for Basic SIS Commands
• Command/Response Tables for DSP SIS Commands
Connection Options
The MVC 121 Plus can be remotely connected via a host computer or other device (such
as a control system) attached to the rear panel RS-232 port, or the front panel USB Config
port.
The MVC can be set up and controlled using the Extron SIS (Simple Instruction Set
commands, or DSP Configurator software (see Rear Panel Features on page 4 for
RS-232 pin assignments and details on the configuration and control port connections).
For information on DSP Configurator see Software Control.
SIS commands may be executed using the Extron Electronics DataViewer program, which
may be found on the Software Products DVD included with the product.
MVC 121 Plus RS-232 protocol:
• 38400 baud • no parity
• 8 data bits • no flow control
• 1 stop bit
NOTE: The RS-232 configuration port requires 38400 baud communication. This is a
higher speed than many other Extron Electronics products use. The
DSP Configurator automatically sets the connection for the appropriate
speed. If using HyperTerminal or a similar application, make sure the PC or
control system connected to these ports is set for 38400 baud.
See Rear Panel Features
, for additional details on connecting the RS-232 port.
USB port details:
The Extron USB driver must be installed before use. See Install the USB Driver for driver
installation instructions.
RS-232 Port
The MVC 121 Plus has a rear panel serial port that can be connected to a host device such
as a computer running the HyperTerminal utility, or the DataViewer utility. The port makes
serial control of the mixer possible. Use the protocol information mentioned previously to
make the connection. Once the connection is made, see Using the Command/Response
Tables on the next page for SIS programming details.
MVC 121 Plus • SIS Programming and Control 29