Technical Information
Serial terminal
The serial connector which is on the connector panel of the projector conforms to the
Connection
COMPUTER1 | DIN 8 pin (male) |
Serial terminal (female)
Serial adapter
Pin assignments and signal names
|
| Pin No. | Signal name | Contents |
1 | 2 | A B F |
| Connected internally |
|
|
| ||
|
| C | RXD | Received data |
3 | 5 | D | GND | Earth |
|
| E | TXD | Transmitted data |
6 | 8 | G H |
| NC |
|
|
|
Communication 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
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| The data streaming from the computer will |
| STX | Command | : |
| Parameter | ETX |
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| start with STX, and proceed to Command, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
| Start |
| byte |
|
|
|
|
|
|
|
| Parameter and end with ETX. You can | |||
|
|
|
| 1 byte |
|
| End | ||||||||
|
| 3 bytes | 1 byte - | ||||||||||||
| (02h) |
|
|
|
| (03h) | add the required parameter. | ||||||||
|
|
|
|
|
|
| 4 bytes | ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The projector can not receive any command for 10 seconds after the lamp is switched on. Wait 10 seconds before sending the command.
If sending multiple commands, check that a response has been received from the projector for one command before sending the next command.
When a command which does not require parameters to be sent, the colon (:) is not required.
If an incorrect command is sent from the personal computer, the ER401 command will be sent from the projector to the personal computer.
Appendix
