Nec MULTEOS M40 User Manual download pdf (Page 40)

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Using the LCD with RS-232C

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 infra-red wireless controller, up to 26

individual M40/M46 monitors can be controlled through a

daisy chain via RS-232C connection.

1. Connect PC and M40/M46.

Connect a PC’s RS-232C control output to the M40/

M46’s RS-232C input. You can then connect the

RS-232C output from the M40/M46 to another

M40/M46’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 “MULTI DISPLAY” 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 all of the 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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Nec MULTEOS M40 User Manual Page 40

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