Optoma W351 Mode D'emploi page 41

"Screen Type" is for

WXGA only.
Menu Location
Choose the menu location on the display screen.
Screen Type
Choose the screen type from16:10 or 16:9.
Projector ID
ID definition can be set up by menu (range 0-99), and allow user
control an individual projector by RS232. Refer to pages 65-69 for
the complete list of RS232 commands.
User Controls
41
English