4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
OMX-4X4 SERIAL CONTROL SOFTWARE VERSION 1.0
The OMX-4X4 is provided with a DOS bases RS232 control software. This software is provided on a
3.5” 1.44Mb floppy disc. This software allows the operator to run all switcher functions from a standard
IBM compatible PC. The software can be run from the floppy disc or installed on a PC hard drive.
Additionally, the software has control features not available via manual control.
TEST: This mode will instantly connect input #1 to all outputs. It can be used to feed Colorbars to all
outputs for test purposes.
MUTE: This feature allows all outputs to be disabled or “muted” at once. Individual output channels
may be muted as well.
Install the floppy disc in drive A of your PC. At the A: Prompt type: Install and hit return.
Type Y to answer YES for hardware installation. The software will create a sub-directory called 4X4232
on your hard drive and the copy the file AV.EXE into that directory.
From the directory 4X4232 type: AV
The operations menu will appear as shown below.
Select Output (1-4), T for Test, M to Toggle Mute or Q to Quit.
*************Current Switch Configuration***************
INSTALLATION
RUNNING PROGRAM
OUTPUT
CONNECTED OUTPUT
1
0
2
0
3
0
4
0
The top menu line offers these options: SELECT OUTPUT, TEST, MUTE & QUIT.
To enter the TEST mode type T and press enter. You will note that all the connected outputs change
to “1”. This indicates that all outputs are now connected to input #1. Follow the screen instructions for
exiting the TEST mode.
The MUTE feature is a Toggle. This means it may turned on & off by pressing the ENTER key. Type
M to engage this feature. You will note “MUTED” appears before each output line when the feature is
engaged. To toggle back & forth, simply hit ENTER & “MUTED” goes on & off accordingly.
