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 | - |
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 : 9600bps |
| 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 |
2-2-3 Control Commands List:
Table : 1 Standby mode (Command to be used in standby mode )
Item | Contents |
| Key(CMD**) |
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POWER | Turning power ON |
| PWR | PON |
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PWR: Alternation switch command | PON: Direct switch command |
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Table : 2 Normal mode (Command to be used in normal mode ) |
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Item | Contents |
| Key(CMD**) |
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POWER | Switch projector to power on or off state | PWR | POF |
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CALL | Show status on the screen, on and off | DSP | DON | DOF |
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RGB1 | Selects RGB – 1 input source |
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| IN1 |
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RGB2 | Selects RGB – 2 input source |
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| IN2 |
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DIGITAL | Selects DIGITAL LINK input source |
| IN3 |
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VIDEO | Selects VIDEO input source |
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| IN4 |
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W/B | Switch white balance mode (W/B) | WBL | WB1 | WB2 | WB3 | |
ADJUST | Enters adjustment mode (ADJUST/MODE) | AJS | AJY |
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ID SET | Setting ID |
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| IDS |
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| Picture mute on or off |
| MSW | MON | MOF |
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