User's Guide

USER GUIDE: UBS-200L LF DESKTOP READER
April 4, 2019
Unified Information Devices | Chapter 3 – Operating and Configuring the UBS-200L
26
LCD On/Off “UID LCD”
The “UID LCD” command can be used to toggle the LCD display on or off. If the LCD display is not
required, turning it off can improve overall system read performance. Issue “UID LCD 0” to turn off the
LCD display, and “UID LCD 1” to turn it back on.
Information:
Turning the LCD Display function OFF when not being used can
enhance system read performance.
Information:
Turning the LCD display OFF prevents new data from being relayed
to the display. Even with the display turned OFF, the backlight and
power-up splash screen will still function, and the model number
will still be displayed.
Keyboard Wedge On/Off “UID KW”
The “UID KW” command can be used to toggle the Keyboard Wedge function on or off. If the Keyboard
Wedge function is not required, it is strongly recommended that it be turned off, as it can induce read
delays. Issue “UID KW 1” to turn on the Keyboard Wedge function, and “UID KW 0” to turn it off.
Information:
Turning the Keyboard Wedge function OFF when not needed
significantly enhances system read performance.
Information:
Even with the Keyboard Wedge function turned off, the host will
still recognize a connected keyboard as long as the USB KW port is
connected. While no keystrokes are sent with Keyboard Wedge
function turned off, it is recommend that the port also be
unplugged.