Using the SERIAL connector
The serial connector which is on the side connector panel of the projector conforms to the
Control commands
The commands which the personal computer can use to control the projector are shown in the following table.
Connection
Computer
SERIAL(female)
Communication cable
NOTE:
BUse a proper communication cable which is suitable for the personal computer to connect the serial connector and the personal computer.
Pin layout and signal names for SERIAL connector
69
1 5
Pin | Signal | Contents | |
No. | name | ||
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# |
| NC | |
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$ | TXD | Transmitted data | |
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% | RXD | Received data | |
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& |
| NC | |
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' | GND |
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( | DSR |
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) | CTS | Connected internally | |
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* | RTS |
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+ |
| NC | |
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Communications settings
Signal level | |
Sync. method | Asynchronous |
Baud rate | 9 600 bps |
Parity | None |
Character length | 8 bits |
Stop bit | 1 bit |
X parameter | None |
S parameter | None |
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Basic format
The data sent from the computer to the projector is transmitted in the format shown below.
STX Command : Parameter ETX
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Start byte |
| 1 byte | End byte | ||||
(02h) |
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| bytes (03h) | ||
3 bytes | 1 | ||||||
NOTE:
BIf sending multiple commands, check that a response has been received from the projector for one command before sending the next command.
BWhen a command which does not require parameters is sent, the colon (:) is not required.
BIf an incorrect command is sent from
the personal computer, the “ER401” command will be sent from the projector to the personal computer.
Command | Control | Remarks | ||
Contents | ||||
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| In standby mode, all commands other than | ||
PON | Power ON | the PON command are ignored. | ||
BThe PON command is ignored during | ||||
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| lamp ON control. |
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| BIf a PON command is received while the | ||
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| cooling fan is operating after the lamp | ||
POF | Power OFF | has switched off, the lamp is not turned | ||
back on again straight away, in order to | ||||
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| protect the lamp. |
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AVL | Volume | Parameter |
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| Parameter |
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IIS | Input signal | VID=VIDEO | ||
selection | RG1=RGB1(YPBPR1) RG2=RGB2(YPBPR2) | |||
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| NWP=NETWORK | SDC=SDCARD | |
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| Parameter |
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| Lamp ON | 0 = Standby |
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Q$S | 1 = Lamp ON control active | |||
condition query | ||||
| 2 = Lamp ON |
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| 3 = Lamp OFF control active | ||
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| Operation will be switched between ON and | ||
OSH | Shutter function | OFF each time the command is sent. Do | ||
not switch operation ON and OFF after only | ||||
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| short periods of time. |
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Cable specifications
(When connected to a personal computer)
At the computer
At the projector | (DTE specifications) |
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| 1 | NC | NC | 1 |
| Others |
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| 2 |
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| 3 |
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| 4 | NC | NC | 4 |
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| 5 |
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| 5 |
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| 6 | NC | NC | 6 |
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| 7 |
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| 7 |
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| 8 |
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| 8 |
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| 9 | NC | NC | 9 |
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