Extron Electronics System 7SC - Manual (Page 54)

Serial Communication, cont’d
System 7SC • Serial Communication 4-6
Image size
Specify image size, maintain aspect ratio X15 { Isz X15 Set picture height & width together.
Size up, maintain aspect ratio +{ Isz X15 Increase height & width equally.
Size down, maintain aspect ratio -{ Isz X15 Decrease height & width size equally.
View the image size value { Isz X15 Show the image size setting.
Horizontal size
Specify the horizontal size X15 : Hsz X15 Set the picture width.
Increase the horizontal size +: Hsz X15 Widen the picture.
Decrease the horizontal size -: Hsz X15 Make the picture narrower.
View the horizontal size value : Hsz X15 Show the horizontal size setting.
Vertical size
Specify the vertical size X15 ; Vsz X15 Set the picture height.
Increase the vertical size +; Vsz X15 Make the picture taller.
Decrease the vertical size -; Vsz X15 Make the picture shorter.
View the vertical size value ; Vsz X15 Show the vertical size setting.
Top blanking
Specify a top blanking value X17 ( Blt X17 Set the number of lines to blank
at the top of the picture.
Increase the top blanking value +( Blt X17 Increase the # of top lines blanked.
Decrease the top blanking value -( Blt X17 Decrease the # of top lines blanked.
View the top blanking value ( Blt X17 Show the number of lines that are
blanked at the top of the picture.
Bottom blanking
Specify a bottom blanking value X17 ) Blb X17 Set the number of lines to blank
at the bottom of the picture.
Increase the bottom blanking value +) Blb X17 Increase the number of lines
blanked at the bottom.
Decrease the bottom blanking value -) Blb X17 Decrease the number of bottom
lines blanked.
View the bottom blanking value ) Blb X17 Show the # of bottom lines that
are blanked.
Scaler rate
Set the output rate X11 = Rte X11 Select a scaler output scan rate.
View the output rate = Rte X11 Show the scaler output rate.
Freeze
Enable 1F Frz1 Output a “frozen” video image.
Disable 0F Frz0 Turn off freeze (output motion).
View the freeze status F Frz X2 Show the freeze status.
Example: F Frz0
Command/response table for SIS commands (continued)
Command ASCII Command Response Additional description
(host to switcher) (switcher to host)