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Appendix-2
Control via RS-232C – Command Protocol list
Table –1 RS-232C pin-connection configuration
Pin No Signal name Signal items I/O (in projector)
1 CD Not used -
2 RXD Reception data Output
3 TXD Transmission data Input
4 DTR* Data terminal ready Input
5 SG Signal ground Ground
6 DSR* Data set ready Output
7 RTS** Transmission request Input
8 CTS** Transmission enable Output
9 CI Not used -
* Shorted at projector inside ** Shorted at projector inside
Table –2 RS-232C Communication status
Status name Status
Communication system Transmission speed : 9600 bps
Parity bit : NO, Data length : 8 bit, Stop bit : 1 bit
Communication type 1 Block consists of STX (1Byte) + IDT(2Byte) + CMD (3Byte) + ETX (1Byte).
STX=02h, ETX=03h, IDT= Alphanumeric character (0-9, A-F, *)
2-2-3 Control Commands List:
Table : 1 Standby mode (Command to be used in standby mode )
Item Contents Key(CMD**)
POWER Turning power ON PWR PON
PWR: Alternation switch command PON: Direct switch command
Table : 2 Normal mode (Command to be used in normal mode )
Item Contents Key(CMD**)
POWER Switch projector on -off, Enter stand-by or escape PWR POF PON
CALL Show status on the screen, on -off DSP DON DOF
RGB1 Selects RGB – 1 input source IN1
RGB2 Selects RGB – 2 input source IN2
DIGITAL Selects DIGITAL Link input source IN3
VIDEO Selects VIDEO input source IN4
W/B Switch white balance mode (W/B 1.2.3) WBL WB1 WB2 WB3
ADJUST Enters adjustment mode (ADJUST Mode) AJS AJY
ID SET Setting ID IDS
ID SEL ID Selection IDT
Mute Picture mute on-off MSW MON MOF
STD Reset user setting to factory defaults VST
MODE+0 User magnification pattern 0 SM0
MODE+1 User magnification pattern 1 SM1
MODE+2 User magnification pattern 2 SM2
MODE+3 User magnification pattern 3 SM3
MODE+4 User magnification pattern 4 SM4
MODE+5 User magnification pattern 5 SM5
MODE+6 User magnification pattern 6 SM6
MODE+7 User magnification pattern 7 SM7
MODE+8 User magnification pattern 8 SM8
MODE+9 User magnification pattern 9 SM9
A + A Show 10-User sets, can be assign to custom set VNA
B + B Show custom settings, 9-sets VNB
Apply 1 Apply custom setting 1 CS1
Apply 2 Apply custom setting 2 CS2
Apply 3 Apply custom setting 3 CS3