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This LCD monitor can be controlled via personal computer or wireless remote control using an RS-232C connection.MONITOR ID and IR CONTROL
Using one PC or one infrared wireless controller, up to 26 individual LCD4020/LCD4620 monitors can be controlled through a daisy chain
via RS-232C connection.
1.Connect PC and LCD4020/LCD4620.
Connect a PC’s RS-232C control output to the LCD4020/LCD4620’s RS-232C input. You can then connect the RS-232C output from the
LCD4020/LCD4620 to another LCD4020/LCD4620’s RS-232C input. Up to 26 monitors can be connected using RS-232C.
2.Set Monitor ID and IR Control mode.
For proper operation, the Monitor ID should be set in the OSD menu of each monitor that is in the chain. The Monitor ID can be set under
the “MULTI DISPLAY” menu in the OSD. The Monitor ID number can be set within a range from 1 to 26. No two monitors should share the
same Monitor ID number. It is recommended to number each monitor in a daisy chain sequentially from 1. The first monitor in the daisy
chain is designated as the primary monitor. Subsequent monitors with the chain are secondary monitors.
In the “ADVANCED OPTION” menu on the first monitor in the RS-232C daisy chain set the “IR CONTROL” to “PRIMARY”.
Set the “IR CONTROL” to “SECONDARY” on all other monitors.
3.Press the “DISPLAY” button on the remote control while aiming at the “PRIMARY” monitor. The Information OSD will be shown at
top left side of the screen.
Monitor ID: Displays the ID number of the current monitor within the daisy chain.
Target ID: Displays the ID number of the monitor that to be controlled via daisy chain from the current monitor.
Press the “+” or “-” buttons to change the “Target ID” to show the ID number of the monitor to be controlled. To control the entire daisy
chained monitors simultaneously, select “ALL” as the “Target ID.”
Note: If the monitor is in ECO Standby mode, RS-232C functionality is stopped.
4.Use the wireless remote controller to control the “SECONDARY” monitor while aiming at the “PRIMARY” monitor.
The “MENU OSD” will appear on the selected target monitor.
NOTE: If the “ID No.” mode select OSD is showing, press the “DISPLAY” button on the remote control while pointing at the “PRIMARY”
monitor to clear this OSD.
HINT: If you lost control due to the incorrect setting of “IR CONTROL”, pressing the “DISPLAY” button on the remote control for 5 or
more seconds will reset the “IR CONTROL” menu to “NORMAL” function.
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