4-13IN1404XT Video Scaler and Switcher • Programmer’s Guide
Command/Response Table for RS-232 Commands (Cont’d)
Command ASCII Command Response Additional description
(host to scaler) (scaler to host)

Front panel buttons

Menu button [MENU] [OK] The same as pushing the front
panel Menu button. The on-
screen display shows the menu
system.
Left button [LEFT] [OK] The same as pushing the front
panel button.
Up button [UP] [OK] The same as pushing the front
panel (Menu , not volume ).
Down button [DOWN] [OK] The same as pushing the front
panel (Menu , not volume ).
Right button [RIGHT] [OK] The same as pushing the front
panel button.
Enter button [ENTER] [OK] The same as pushing the front
panel Enter button. Any
highlighted or changed on-
screen display parameters are
saved.

The rest of the RS-232 commands are a complex set of adjustments to optimize

the scaler for non-standard video inputs. Most users will not encounter such

signals. Extron recommends that only knowledgeable and qualified video

technicians make changes to these settings.

Active area

The active pixels and total pixels adjustments are interactive. Setting one of

these variables may require adjusting the other.

Set a specific active pixel value [AP X29] [OK] Specify the active pixels
adjustment.
Increment active pixels value [AP+] [OK] Increase the active pixels setting
by one.
Decrement active pixels value [AP -] [OK] Decrease the active pixels setting
by one.
Set active pixels value to default [AP@] [OK] Reset the active pixels setting to
its factory default (9).
View the active pixels value [AP?] [X29 ]Show the active pixels setting.
Set a specific active line value [BV X30] [OK] Specify the active lines
adjustment.
Increment active lines value [BV+] [OK] Increase the active lines setting
by one.
Decrement active lines value [BV-] [OK] Decrease the active lines setting
by one.
Set active lines value to default [BV@] [OK] Reset the active lines setting to
its factory default (9).
View the active lines value [BV?] [ X30]Show the active lines setting.

Blanking

Set a specific H blanking value [BH X31] [OK] Specify the active pixels
adjustment.
Increment H blanking value [BH+] [OK] Increase the horizontal blanking
setting by one.
Decrement H blanking value [BH-] [OK] Decrease the horizontal blanking
setting by one.