Extron Electronics Audio-Video Switchers - Manual (Page 17)

Audio/Video Switchers • RS-232/Remote Control Audio/Video Switchers • RS-232/Remote Control
RS-232/Remote Control, cont’d
Windows-Based Program Control
The Universal Switcher Control Program, part #29-031-01, is
compatible with Windows 3.1/3.11, Windows 95/98, Windows
NT, Windows ME, and Windows 2000 and provides remote
control of the following:
• Input selection (including audio breakaway for models
with video and audio)
• Audio gain and attenuation adjustments (audio models)
• Front panel switch mode selection (auto-switching
models)
Updates to this program can be downloaded from the Extron
Web site (http://www.extron.com).
Installing the software
The program is contained on a single 3.5” diskette and can be
run from the floppy drive, or it can be installed and run from
the hard drive.
To install the software on the hard drive, run setup.exe from the
floppy disk and follow the screen instructions.
By default, the Windows installation creates a C:\UNIVSW
folder and places two icons (Universal Switcher Control
Program and Universal Switcher Help) into a group named
“Extron Electronics”.
Using the software
1 . To run the software, double click on the Universal
Switcher Control Program icon in the Extron
Electronics program group.
2 . Click on the comm port that is connected to
the switcher’s RS-232 port.
3 . The Extron Universal Switcher Control
Program window (Figure 4-2) displays the
selected input, the audio gain for the selected
input, and the panel mode.
Figure 4-2 — Universal Switcher program window
Using the help system
For information about program features, you can access the help
program in any of the following ways:
• From the Extron Electronics program group, double-click on
the Signal Enhancement Products Help icon.
• From within the Windows-based switcher
control program, click on the Help entry on
the task bar.
• From within the Windows-based switcher
control program, press the F1 key.
Contact Closure Remote Control
The Remote connector also provides a way to select an input to
the switcher using a remote contact closure device. Contact
closure control uses pins on the Remote connector that are not
used by the RS-232 interface. The contact closure pin
assignments are shown in the table on page 4-2.
To select a different input number using a contact closure
device, momentarily short the pin for the desired input number
to logic ground (pin 5). To force one of the inputs to be always
selected, leave the short to logic ground in place. The short
overrides front panel input selections.
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