Hall Research VSA-31 - Manual (Page 10)

Model VSA-31
10
. Creating the Serial Strings
The serial string to the projector can be comprised of ASCII characters,
hexadecimal bytes, and wait times embedded in the strings. The length of
each serial string must not exceed 250 characters. The current length of
each string will be displayed in the String Length box. You will notice in
the Projector Commands drop down menu there are only 4 options. Select
the Projector command you wish to edit and then start typing the serial
string into the Serial String text box.
1. Source = VGA
This command will be issued when either one of the 2 VGA
inputs is selected via the VSA-31’s front panel buttons. This
command will tell the projector to select the VGA input.
2. Source = S-Video
The Source = S-Video command will be issued when the 3rd
input is selected. You will notice that the 3rd input can accept
either Composite Video or S-Video. The VSA-31 up-scales the
Composite video into S-Video so the projector is always
receiving S-Video when input 3 is selected. The serial command
associated with this command will tell the projector to select the
S-Video input.