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Technical Information
ENGLISH - 45
Appendix
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
J Pin assignments and signal names
J Communication settings
J Basic format
The projector can not receive any command for approximately 10 seconds after the lamp is switched on
and for approximately 1 second after the cooling fan stops operating and the projector has returned to
standby mode (approximately 90 seconds after the indicator switches off).
Be sure to wait until the lengths of time mentioned above have passed 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.
Serial terminal
Pin No. Signal name Contents
A B F
Connected internally
C
RXD Received data
D
GND Earth
E
TXD Transmitted data
G H
NC
Signal level RS-232C Character length 8bits
Sync. method Asynchronous Stop bit 1bit
Baud rate 9600bps X parameter None
Parity None S parameter None
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.
DIN 8 pin (male)
COMPUTER1
Serial terminal (female)
Serial adapter
(ET-ADSER:sold separately)
1
2
6
8
53
STX Command : Parameter ETX
Start byte
(02h)
1byte End
(03h)
3bytes
1byte -
4bytes