NEC LCD4215 - Manual (Page 28)

English-26
Controlling the LCD monitor via RS-232C Remote Control
This LCD monitor can be controlled by connecting a personal computer with a RS-232C terminal.
Functions that can be controlled by a personal computer are:
• Power ON or OFF
• Switching between input signals
Connection
LCD Monitor + PC
RS-232C Cable
PC (Out) RS-232C (IN)
MultiSync
NOTE: If your PC (IBM or IBM compatible) is equipped only with a 25-pin serial port connector, a 25-pin serial port adapter is
required. Contact your dealer for details.
* In order to function, the RS-232C OUT terminal can only be connected to another monitor of the same model.
Do not connect to other types of equipment.
To control monitor or multiple monitors that are daisy-chained together please use the control command. Instructions for the
control command can be found on the CD included with the display. The file is called “External_control.pdf”.
1) Interface
This LCD monitor uses RXD, TXD and GND lines for RS-232C control.
2) Control command diagram
Please see file “External_Control.pdf” on the CD-ROM.
PROTOCOL RS-232C
BAUD RATE 9600 [bps]
DATA LENGTH 8 [bits]
PARITY BIT NONE
STOP BIT 1 [bit]
FLOW CONTROL NONE