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ENGLISH
- 97
Appendix
Serial terminal
The serial port on the connector panel of the projector conforms to the RS-232C interface specication, so the
projector can be controlled by a personal computer connected to this port.
Connection
■
Serial terminal (female)
D-sub 9 pin (male)
Computer
Pin assignments and signal names
■
D-Sub 9 Pin (external view)
(6)
(1)
(9)
(5)
Pin No. Signal name Contents
(1) — NC
(2) TXD Transmitted data
(3) RXD Received data
(4) — NC
(5) GND Earth
(6) — NC
(7) RTS
Connected internally
(8) CTS
(9) — NC
Communication settings
■
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
■
STX Command : Parameter ETX
Start byte
(02h)
1 byte
End
(03h)
3 bytes 1 byte - 4 bytes
Data streaming from the computer will start with STX,
and proceed to command, parameter and end with
ETX.
Parameters can be added as necessary.
Attention
The projector cannot receive any command for 10 seconds after the lamp is switched on. Wait 10 seconds before sending
z
a command.
If sending multiple commands, check that a response has been received from the projector for one command before
z
sending the next.
When a command which does not require parameters to be sent, a colon (:) is not required.
z
Note
If an incorrect command is sent, the ER401 command will be sent from the projector to the personal computer.
z