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NGLISH
Technical Information
Serial terminal
The serial connector which is on the connector panel of the projector conforms to the RS-232C interface
specification, so that the projector can be controlled by a personal computer which is connected to this connecter.
J
Connection
Serial terminal (female)
Computer
D-sub 9 pin (male)
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Pin assignments and signal names
Pin No.
Signal name
Contents
NC
TXD
Transmitted data
RXD
Received data
NC
GND
Earth
NC
RTS
Connected internally
CTS
NC
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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
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Basic format
Start byte
(02h)
1 byte -
4 bytes
End
(03h)
3 bytes 1 bytes
STX
Command
:
Parameter
ETX
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.
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
