NEC BT421 User Manual page 25

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External Control
Connecting external device
There are two ways to connect an external device to the monitor.
• RS-232C terminal.
Connecting an external device to the RS-232C terminal of the monitor with a RS-232C cable.
• LAN port.
Connecting an external device to the LAN port of the monitor with a LAN cable.
For further information regarding the type of LAN cable to use, please consult your network administrator.
Connecting interface
RS-232C Interface
PROTOCOL
RS-232C
BAUD RATE
9600 [bps]
DATA LENGTH
8 [bits]
PARITY
NONE
STOP BIT
1 [bit]
FLOW CONTROL
NONE
LAN interface
PROTOCOL
PORT NUMBER
COMMUNICATION SPEED
Control command diagram
For other commands, please see "External_Control.pdf" file on the CD-ROM supplied with the monitor.
Function (Monitor ID = 1)
Power ON
Power OFF
Input Source Select DVI1
Input Source Select DVI2
ASCII Control command
This monitor supports control command, which is listed in the "External_Control.pdf" file on the CD-ROM supplied with the
monitor, but also supports common ASCII control command, which is used for controlling the NEC monitor or projector from a
connected PC. For further information please visit our website.
Parameter
Input command
Input signal name
Response
DVI1
dvi1
DVI2
dvi2
TCP
7142
AUTO setting (10/100Mbps)
01 30 41 30 41 30 43 02 43 32 30 33 44 36 30 30 30 31 03 73 0d
01 30 41 30 41 30 43 02 43 32 30 33 44 36 30 30 30 34 03 76 0d
01 30 41 30 45 30 41 02 30 30 36 30 30 30 30 33 03 71 0d
or
01 30 41 30 45 30 41 02 30 30 36 30 30 30 30 34 03 76 0d
01 30 41 30 45 30 41 02 30 30 36 30 30 30 31 30 03 73 0d
or
01 30 41 30 45 30 41 02 31 31 30 36 30 30 31 30 03 73 0d
Parameter
dvi1
dvi2
English-23
Code Data
Status command
Response
error:light
error:system
Error status
Inverter or backlight abnormal
System error

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