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

MultiSync

MultiSync

PC

IN

OUT

RS-232C (IN)

RS-232C (OUT)

RS-232C (IN)

(Out)

 

 

 

 

 

RS-232C Cable

RS-232C Cable

RS-232C (OUT)

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.

The following control sequence is used for a single LCD4020/LCD4620. To control multiple LCD4020/LCD4620 monitors that are daisy-chained together please use the extended control command. Instructions for the extended control command can be found on the CD included with the display. The file is called ÒExternal_control_LCD4X20.pdfÓ. When using the following control commands, all of the daisy-chained monitors can be controlled at the same time from one monitor. Reply and status commands, however, will only pertain to the primary monitor, not secondary monitors.

1) Interface

PROTOCOL

RS-232C

BAUD RATE

9600 [bps]

DATA LENGTH

8 [bits]

 

 

PARITY BIT

NONE

 

 

STOP BIT

1 [bits]

FLOW CONTROL

NONE

 

 

This LCD monitor uses RXD, TXD and GND lines for RS-232C control.

2)Control command diagram

The command is structured by the address code, function code, data code and end code. The length of the command is different for each function.

 

Address code

Function code

Data code

 

End code

 

HEX

30h 30h

Function

Data

 

0Dh

 

 

 

 

 

 

 

 

ASCII

'0' '0'

Function

Data

 

 

 

 

 

 

 

 

 

 

[Address code]

30h 30h (ASCII code, '0' '0'), fixed.

 

[Function code]

A code of each fixed control move.

 

[Data code]

A code of each fixed control data (number) and not always indicated.

 

[End code]

0Dh (In ASCII code, '

') fixed.

English-32

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NEC LCD4020, LCD4620 user manual Connection, English-32
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LCD4620, LCD4020, LCD4620 specifications

The NEC LCD4620 is a robust and versatile 46-inch LCD display designed to cater to the demanding needs of various commercial environments, including retail, control rooms, and corporate settings. This display is known for its blend of advanced features, reliability, and performance that make it an excellent choice for professional applications.

One of the standout features of the NEC LCD4620 is its impressive resolution. With Full HD capabilities of 1920 x 1080 pixels, the display delivers sharp and vibrant images, ensuring that content is presented with optimal clarity. This high resolution enhances visual experiences, making it ideal for presentations, advertising, and information sharing.

The technology behind the NEC LCD4620 includes a combination of advanced panel technology and backlighting. It utilizes an S-IPS (Super In-Plane Switching) panel, which provides wide viewing angles of up to 178 degrees both horizontally and vertically. This characteristic is vital in public spaces where audiences may view the screen from various angles. Additionally, the display boasts a high contrast ratio, which enhances uniformity and depth in color reproduction.

The NEC LCD4620 is equipped with multiple connectivity options, including HDMI, VGA, and DVI inputs, allowing seamless integration with diverse systems and sources. These connectivity options make it versatile for various applications, whether connecting to a computer, media player, or digital signage network. The inclusion of a built-in USB port also enables media playback directly from USB devices, making it user-friendly for quick and easy content updates.

Another critical feature of the NEC LCD4620 is its durability and reliability. Designed for continuous operation, it can function for extended periods without the risk of overheating, making it suited for 24/7 environments. The display features a robust cabinet that is both aesthetically pleasing and functional, ensuring long-lasting performance in high-traffic areas.

Moreover, the NEC LCD4620 incorporates advanced energy-saving technologies to reduce power consumption, aligning with modern energy efficiency standards. This not only lowers operational costs but also supports environmental sustainability initiatives.

In conclusion, the NEC LCD4620 is a powerful 46-inch LCD display that combines high resolution, remarkable viewing angles, versatile connectivity, and robust design. It is an ideal solution for businesses and organizations seeking reliable displays that enhance visual communication and customer engagement.
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