QOMO QD3900 - Manual (Page 17)

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Click [Capture]  [Set Frame Rate]
, and click open “Choose Frame Rate”
to set the frame rate.
D. Set Time Limit
Click [Capture]

[Set Time Limit] to set the time limit while capturing
video.
E. Note:
Do not connect / disconnect the USB cable when the application is running,
which will cause the program to be interrupted.
CONTROLLING VISUALIZER BY COMPUTER
You can control the visualizer from a computer connected with a RS232
connector.
A. Connect the computer and the visualizer using the RS232 cable.
B. Double click X:\ 232 Control\Control Panel (you can open this file from
the CD and double click it, or copy this file to any directory on your
computer‟s hard drive and double click to launch it).
CONTROLLING PROJECTOR BY VISUALIZER
The code writing software is used to inputting projector
‟s control code, then
can control various projector with the visualizer.
1. Connect the visualizer to the projector with the RGB,VIDEO cables.
2. Connect the RS232 cable to the computer
‟s connector. The visualizer‟s
RS232 port is located on its right side.
3. After completion of the connection, turn on the visualizer，click [start]

[All Programs]

Visualizer

and the following
dialog box appears as below: