Extron Electronics MPX Plus 866 A Rev. B - Manual (Page 86)

MPX Plus 866 A Media Presentation Matrix Switcher • SIS Programming and Control 4-2
SIS ™ Programming and Control
PRELIMINAR
Y
RS-232 Ports
The switcher has three serial ports that can be connected to a host device such as a
computer running the HyperTerminal utility, an RS-232 capable PDA, or a control
system. These ports make serial control of the switcher possible. The serial ports
are:
• two (Primary and Secondary) rear panel RS-232 ports on 3-pin captive screw
connectors
• the front panel Configuration (RS-232) port, a 2.5 mm mini stereo jack
The default protocol for all ports is as follows:
• 9600 baud • no parity • 8 data bits
• 1 stop bit • no flow control
The RS-232 ports can be configured to operate at the 9600, 19200, 38400, or 115200
baud rate.
N These three ports are hardwired for RS-232 only.
The rear panel RS-232 Secondary port is active only if the front panel
Configuration port is not in use. If a front panel configuration connection is
made, the rear panel RS-232 Secondary port becomes inactive and the front panel
Configuration port is active.
N The switcher can operate at 9600, 19200, 38400, or 115200 baud rates, but
Extron recommends leaving these ports at 9600 baud only.
See “Selecting the RS-232 Primary port’s baud rate” in chapter 3, “Operation”,
to configure the RS-232 Primary port from the front panel.
See the “Set serial port parameters” command on page 4-20 to configure all of
the ports using an SIS command.