Extron electronic MVX PLUS 128 manual Selecting the RS-232/RS-422 protocol and baud rate

Operation, cont’d

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 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 3-67).

Press and hold the Enter, Preset, View, and Esc buttons.

C O N T R O L

C O N T R O L I / O

ENTER PRESET VIEW ESC 2 seconds ENTER PRESET VIEW ESC RGBHV AUDIO

			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
		= Blinking button	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.
Figure 3-67 — 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 (figure 3-68).

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/RS-485

The selected buttons blink and the others remain lit.

In this example, the port is set to RS-422 at 38400 baud.

C O N T R O L

ENTER PRESET VIEW ESC

I / O

RGBHV AUDIO

= Blinking button

Figure 3-68 — RS-232/RS-422 and baud rate selection

4. Press and release an input or output button to exit the Serial Port Configuration mode (figure 3-69).

Press and release an	All Control and I/O buttons return to unlit or background illumination.
input or output button.
		C O N T R O L	I / O

5 ENTER PRESET VIEW ESC RGBHV AUDIO

Figure 3-69 — Exit Serial Port Configuration mode

3-40 MVX Plus 128 VGA Matrix Switchers • Operation