Extron Electronics MPX 866 A User Guide - Manual (Page 55)

Selecting the Baud Rate of the RS-232 Primary Port
The matrix switcher supports the RS-232 serial communication protocol on the font panel
Configuration port and the rear panel RS-232 Primary and RS-232 Secondary ports. All three
ports can operate at 9600, 19200, 38400, and 115200 baud rates.
The baud rate for the primary port is variable can be viewed and changed from the front panel.
NOTE: Baud rate is protected when front panel Lock mode 2 is selected. You can
view the rate in Lock mode 2 but you cannot adjust it from the front panel (see
“
Setting the Front Panel Locks (Executive Modes) ” on page 47).
View and configure the serial communications settings of the switcher as follows:
1. Enter Serial Port Configuration mode: Simultaneously press and hold all Control
buttons (Enter, Preset, View, and Esc).
CONTROL
ENTER PRESET VIEW ESC
CONTROL
ENTER PRESET VIEW ESC
All Control LEDs light with one flashing.
Release the button.
The flashing Control LED indicates the
baud rate as follows:
Enter — 9600
Preset — 19200
View — 38400 Esc — 115200
Press and hold the Enter, Preset, View, and Esc buttons.
2 seconds
NOTE: If front panel Lock mode 2 is selected and you try to perform step 2, the actions
are ignored and the Enter, Video, and Audio buttons flash.
2. Change a value: Press and release the button that relates to the desired value.
CONTROL
ENTER PRESET VIEW ESC
Press and release the button to configure the
baud rate as follows:
Enter — 9600
Preset — 19200
View — 38400 Esc — 115200
In this example, the port is set to 38400 baud.
3. Exit the Serial Port Configuration mode: Press and release an input or output button.
CONTROL
ENTER PRESET VIEW ESC
5
All Control LEDs return to the unlit state.
Press and release an
input or output button.
NOTE: The switcher requires some time to save the new serial port settings. Wait
at least 5 minutes before removing power from the switcher or the settings
may be lost.
MPX 866 A Media Presentation Matrix Switcher • Operation 50