Runco Video Xtreme VX-40d Owner's Operating Manual page 60

Section 3: Operation
Ethernet Settings (SUBMENU)
NOTE: Reserved for future use.
Backlight
Toggle the built-in keypad lighting on/off.
Front IR / Back IR
As needed for your application, set to "on" so that the front and/or rear IR sensor locations
on the projector responds to the IR keypad. Set to "off" to disable.
To disable both IR sensors, you cannot use the IR remote keypad to select the second
OFF setting. This safeguard prevents accidentally disabling an IR keypad while you are
using it. Instead, use either the built-in keypad or a wired remote (optional) to set the
remaining active sensor to OFF. The projector will no longer respond to an IR remote
keypad.
Wired Keypad
Select "On" to enable use of a wired remote keypad connected to the rear of the projector.
The projector will then respond to incoming commands from either port. To disable the
wired keypad, you must use a different keypad—the built-in or an IR remote keypad—to
select "off". This safeguard prevents you from accidentally disabling the wired keypad
during use.
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