HP LD4730 47-inch Micro-Bezel Video Wall Display manual Command reference, RS-232-C configurations

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Command reference

This chapter gives the information needed to send control commands to the display from your own programs. Use the RS-232-C port for transmitting and receiving commands.

Connecting the cable

Use this method if you want to connect several products to a single PC so that all displays can be controlled at once.

Connect the RS-232-C cable as shown in the following illustration. The RS-232-C protocol is used for communication between the media player/computer and the display. You can turn the display on/off, select an input source or adjust the OSD menu from the media player/computer.

Figure 1 Daisy chain

RS-232C	RS-232C	RS-232C	RS-232C
(CONTROL)	(CONTROL)	(CONTROL)	(CONTROL)
OUT	OUT	OUT	OUT
IN	IN	IN	IN

1 2 3 4

RS-232-C configurations

		7-Wire configurations					3-Wire configurations
		(Standard RS-232-C cable)					(Not Standard)

	media	Display				media	Display
	player/					player/
	computer					computer

RXD	2		3	TXD	RXD	2	3	TXD

TXD	3		2	RXD	TXD	3	2	RXD

GND	5		5	GND	GND	5	5	GND

DTR	4		6	DSR	DTR	4	6	DSR

DSR	6		4	DTR	DSR	6	4	DTR

ENWW	Connecting the cable 1

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Contents Command Reference Guide First Edition January Document Part Number About This Guide Iv About This Guide Table of contents Scheduling Input select Command f u Main Picture Input RS-232-C configurations Command referenceCommunication parameter Command reference listCommand reference list Transmission/Receiving Protocol Power Command k a Aspect Ratio Command k c Main picture format Input Select Command k b Main Picture InputLocal Dimming Command j a Volume Control Command k f Backlight Command m gBrightness Command k h Contrast Command k gAmbient Light Sensor Command j b Sharpness Command k k Display Name Command v aOSD Select Command k l Balance Command k t Remote Lock/Key Lock Command k mAbnormal state Command k z Color Temperature Command k uAuto Configure Command j u ISM Method Command j pSubnet mask, NSM setup Command v l Key Command m cTile H Position Command d e Tile H Monitors Command d g Tile V Position Command d fTile V Monitors Command d h Natural Mode In Tile Mode Command d j Display Location Command v bSound Mode Command d y Picture Mode Command dPlayer Name Command v d Thermal value Command d n Operating time Command d lDhcp VOE Command v e LED fault Check Command d pTime Command f a Speaker Command dOn Timer On/Off Timer Time Command f d Off Timer On/Off Timer Time Command f e Enww Input Scheduling Input select Command f u Main Picture InputAuto Detection Command f g IP Address, VOE Setup Command v fPower On Delay Command f h DPM Select Command f j Language Command fEnergy saving Command f Reset Command f kSerial no. Check Command f y Subnet mask, VOE Setup Command v g48. S/W Version Command f z Mac Address, VOE Setup Command v h IP Address, NSM setup Command v kCheck VOE availability Command v Mac Address, NSM setup Command v j

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