Transmission Command (PC 
Visual Presenter)
Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as follows:
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| T | Command | Parameter | Data | T | ||
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| ACK |
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Response data format (Visual Presenter 
PC)
All response data is transmitted as ASCII code, and it coverds parameter of the table of operation command.
Status request format (Parameter 0)
S T X
Lighting | Input | Posi | Color | Pointer | Image |
selection | selection | /Nega | /B&W | display | enlargement |
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Freeze
Local
Lock out
E T X
Status request format (Parameter 2)
S T X
Resolution
selection
White
Image Aperture balance Contrast selection rotation election selection selection
30H
30H
E T X
ROM version
S T X
V
56H
H
48H
G
47H
**H
**H
**H
E T X
Version
- 49 -
