Technical Information
Serial terminal
The serial connector which is on the connector panel of the projector conforms to the
JJConnection
Computer
Serial terminal (female)
JJPin assignments and signal names
Pin No. | Signal name | Contents |
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| NC |
| TXD | Transmitted data |
| RXD | Received data |
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| NC |
| GND | Earth |
| RTS | NC |
| Connected internally | |
| CTS | |
| NC | |
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JJCommunication settings
Signal level | Character length | 8 bits | |
Sync.method | Asynchronous | Stop bit | 1 bit |
Baud rate | 9 600 bps | X parameter | None |
Parity | None | S parameter | None |
Basic format |
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| STX | Command | : | Parameter | ETX |
| The data streaming from the computer will start with | ||||||
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| STX, and proceed to Command, Parameter and end |
Start byte |
| 1 byte |
| End | |||||||||
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| with ETX. | |||||||||||
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| You can add the required parameter. | ||||||
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| 3 bytes |
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| 1 byte - 4 bytes |
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Note
zzThe projector can not receive any command for 10 seconds after the lamp is switched on. Wait for 10 seconds before sending the command.
zzIf sending multiple commands, check if a response has been received from the projector for one command before sending the next command.
zzWhen a command which does not require parameters to be sent, the colon (:) is not required.
Remarks |
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zzIf an incorrect command is sent from the personal computer, the ER401 command will be sent from the | Appendix |
projector to the personal computer. | |
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ENGLISH - 55
