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Technical Information
Appendix
E
NGLISH - 53
Serial terminal
The serial connector which is on the connector panel of the projector conforms to the RS-232C interface speci-
cations, so that the projector can be controlled by a personal computer which is connected to this connector.
Connection
J
Computer
D-Sub 9-pin (male)
Serial terminal (female)
Pin assignments and signal names
J
Pin No. Signal name Contents
NC
TXD Transmitted data
RXD Received data
NC
GND Earth
NC
RTS
Connected internally
CTS
NC
Communication settings
J
Signal level RS-232C 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
J
STX Command : Parameter ETX
Start byte
(02 h)
1 byte
3 bytes 1 byte - 4 bytes
End
(03 h)
The data streaming from the computer will start with
STX, and proceed to Command, Parameter and end
with ETX.
You can add the required parameter.
Note
The projector can not receive any command for 10 seconds after the lamp is switched on. Wait for 10 seconds
z
before sending the command.
If sending multiple commands, check if a response has been received from the projector for one command
z
before sending the next command.
When a command which does not require parameters to be sent, the colon (:) is not required.
z
Remarks
If an incorrect command is sent from the personal computer, the ER401 command will be sent from the
z
projector to the personal computer.