User Guide User guide
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MVX Plus 128 VGA A Matrix Switcher • Operation
PRELIMINARY
Background illumination
The buttons on the front panel can be set to provide amber background 
illumination at all times or the background illumination can be turned off. To 
toggle the background illumination on or off, press and hold the Input 1 and 
Input 2 buttons simultaneously for approximately 2 seconds (figure 3-67).
1
2
3
1
2
3
Press and hold the Input 1 and Input 2 
buttons simultaneously to toggle 
background illumination mode on or off.
2 seconds
Release the Input 1 
and Input 2 buttons.
Figure 3-67 — Toggle background illumination on or off
Selecting the rear panel Remote port protocol and baud rate
N
  The Remote port settings are protected when front panel Lock mode 2 is selected.  
You can view the settings in Lock mode 2 but you cannot adjust them from the 
front panel.
The switcher can support either RS-232 or RS-422 serial communication protocol, 
and can 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 configure the switcher’s serial communications settings as follows:
1.  To enter Serial Port Configuration mode, simultaneously press and hold all 
Control buttons (Enter, Preset, View, and Esc) (figure 3-68).
C O N T R O L 
PRESET 
ENTER 
I / O 
RGBHV  AUDIO 
C O N T R O L 
PRESET 
ENTER 
ESC VIEW 
ESC VIEW 
2 seconds 
All Control buttons light with one flashing. 
Both I/O buttons light with one flashing. 
The flashing Control button indicates the baud rate as follows: 
Enter — 9600    Preset — 19200 
View — 38400    Esc — 115200 
The flashing I/O button indicates the protocol as follows: 
RGBHV — RS-232    Audio — RS-422/RS-485 
In this example, the port is set to RS-232 at 9600 baud. 
Press and hold the Enter, Preset, View, and Esc buttons.
= Blinking button 
Figure 3-68 — RS-232/RS-422 and baud rate display
2.  Release the Control buttons.










