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MVX 128 A VGA Matrix Switchers • Operation
PRELIMINARY
Selecting the RS-232/RS-422 protocol and baud rate
The switcher can support either RS-232 or RS-422 serial communication protocol,
and operate at 9600, 19200, 38400, and 115200 baud rates. The settings of these
variables can be viewed and changed from the front panel.
View and confi gure the switcher’s serial communications settings as follows:
1. To enter Serial Port Confi guration mode, simultaneously press and hold all
Control buttons (Enter, Preset, View, and Esc) (fi gure 3-54).
ENTER PRESET VIEW ESC RGBHV AUDIO
CONTROL
ENTER
PRESET VIEW ESC
CONTROL I/O
All Control LEDs light with one flashing.
Both I/O LEDs light with one flashing.
The flashing Control LED indicates the baud rate as follows:
Enter — 9600 Preset — 19200
View — 38400 Esc — 115200
The flashing I/O LED indicates the protocol as follows:
RGBHV — RS-232 Audio — RS-422
In this example, the port is set to RS-232 at 9600 baud.
Press and hold the Enter, Preset, View, and Esc buttons.
= Blinking LED= Lit LED,
Figure 3-54 — RS-232/RS-422 and baud rate display
2. Release the Control buttons.
3. To change a value, press and release the button that relates to the desired
value (fi gure 3-55).
ENTER PRESET VIEW ESC RGBHV AUDIO
CONTROL I/O
Press and release the button(s) to configure the port as follows:
Baud rate:
Enter — 9600 Preset — 19200
View — 38400 Esc — 115200
Serial protocol:
RGBHV — RS-232 Audio — RS-422
The selected LEDs blink and the others remain lit.
In this example, the port is set to RS-422 at 38400 baud.
= Blinking LED = Lit LED,
Figure 3-55 — RS-232/RS-422 and baud rate selection