NEC MultiSync C431 User Manual

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IV. Control Commands
6. Typical procedure example
The following is a sample of procedures to control the monitor, these are examples of "Get
parameter", "Set parameter" and "Save current settings".
6.1. How to change the “Backlight” setting.
Step 1. The controller requests the Monitor to reply with the current brightness setting and
capability to support this operation. (Get parameter)
Header Message Check code
Delimiter
SOH-'0'-Monitor ID-
'0'-'C'-'0'-'6'
STX-'0'-'0'-'1'-'0'-ETX BCC CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID from which you want to get a value.
Ex.) If Monitor ID is '1', specify 'A'.
'0' (30h): Message sender is the controller.
'C' (43h): Message type is "Get parameter command".
'0'-'6' (30h, 36h): Message length is 6 bytes.
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Operation code page number is 0.
'1'-'0' (31h, 30h): Operation code is 10h (in the OP code page 0).
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.3 “ Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 2. The monitor replies with current Backlight setting and capability to support this
operation.
Header
SOH (01h): Start of Header
'0' (30h): Reserved
'0' (30h): Message receiver is the controller.
Monitor ID: Indicate a replying Monitor ID.
Ex.) When this byte is set to 'A', the replying Monitor ID is '1'.
'D' (44h): Message Type is "Get parameter reply".
'1'-'2' (31h, 32h): Message length is 18 bytes.
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error.
'0'-'0' (30h, 30h): Operation code page number is 0.
'1'-'0' (31h, 30h): Operation code is 10h (in the page 0).
'0'-'0' (30h, 30h): This operation is "Set parameter" type.
'0'-'0'-'6'-'4' (30h, 30h, 36h, 34h): Backlight max value is 100(0064h).
'0'-'0'-'3'-'2' (30h, 30h, 33h, 32h): Current Backlight setting is 50(0032h) .
ETX (03h): End of Message
Header Message Check
code
Delimiter
SOH-'0'-'0'-Monitor ID-
'D'-'1'-'2'
STX-'0'-'0'-'0'-'0'-'1'-'0'-'0'-'0'
-'0'-'0'-'6'-'4'-'0'-'0'-'3'-'2'-ETX
BCC CR

NEC MultiSync C431 Specifications

General

Response time	6.5 ms
Display diagonal	50 \
Display brightness	400 cd/m²
Display technology	LCD
Native aspect ratio	-
Vertical scan range	24 - 85 Hz
Horizontal scan range	31.5 - 91.1 kHz
LED backlighting type	Edge-LED
Display number of colors	1.073 billion colors
Display diagonal (metric)	125.73 cm
Active display area (W x H)	1095 x 616 mm
Supported graphics resolutions	800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 720 (HD 720), 1280 x 768, 1280 x 800, 1280 x 960, 1360 x 768 (WXGA), 1400 x 1050 (SXGA+), 1440 x 900 (WXGA+), 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA)
USB 2.0 ports quantity	1
Ethernet LAN data rates	10, 100 Mbit/s
Annual energy consumption	110 kWh
Power consumption (standby)	0.5 W
Power consumption (typical)	75 W
USB version	2.0
Ethernet LAN	Yes
HDMI ports quantity	3
Compatible memory cards	MicroSD (TransFlash)
Purpose	Universal
Product type	Group video conferencing system
Product color	Black
Number of persons	- person(s)
Operating hours (hours/days)	24/7
International Protection (IP) code	IP5X, IP2X
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	20 - 80 %
Orientation	Horizontal/Vertical
Certification	CE; EMC B; FCC; PSB; TÜV GS; UL/C-UL / CSA; VCCI
Product design	Digital signage flat panel
Placement supported	Indoor
Bezel width (bottom)	12.4 mm
Panel mounting interface	300 x 300 mm
Audio formats supported	MP3, WAV
Image formats supported	JPG, PNG
Video formats supported	FLV, H.264, MOV, MP4, WMV
Sustainability certificates	RoHS, ENERGY STAR
RMS rated power	20 W
Number of built-in speakers	2
Megapixel	- MP
Image sensor size	- \
Cables included	AC, DisplayPort, HDMI

Weight and Dimensions

Depth	45 mm
Width	1125 mm
Height	645 mm
Weight	16100 g