NEC MultiSync M491 49" Class HDR 4K UHD Commercial IPS LED Display - Manual (Page 64)

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Commands
Connecting the monitor to a computer via RS-232C or to a network via LAN allows for the transmission of commands to the
monitor, providing remote control of the monitor from a connected device.
Instructions for each command format can be found in the external documents “External_Control.pdf”. See
page 73 .
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 TCP
PORT NUMBER 7142
COMMUNICATION SPEED AUTO setting (10/100Mbps)
ASCII Control command
This monitor supports control command, which is listed in the “External_Control.pdf” (See page 73 ), but also supports
common ASCII control command, which is used for controlling the NEC monitor or projector from a connected computer.
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Parameter
Input command Status command
Input signal name Response Parameter Response Error status
HDMI1 hdmi1 hdmi1 or hdmi error:temp Temperature abnormal
HDMI2 hdmi2 hdmi2 error:fan Cooling fan abnormal
DisplayPort DisplayPort DisplayPort error:light Inverter or backlight abnormal
Media Player mp mp error:system System error
OPTION option option
COMPUTE MODULE compute_module compute_module