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72-ENGLISH
Using the SERIAL connector
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 connector.
Connection
Pin assignments and signal
names
Basic format
The data sent from the computer to
the projector is transmitted in the
format shown below.
Communications settings
Signal level RS-232C
AsynchronousSync. method
Baud rate
Parity
9 600 bps
None
Character length 8 bits
Stop bit 1 bit
X parameter None
S parameter None
STX Command
:
Parameter ETX
Start byte
(02h)
3 bytes
1 byte
1 byte-5 bytes
End byte
(03h)
NOTE:
BThe projector can not receive
the command for 10 seconds
after the lamp is switched on.
Wait 10 seconds before sending
the command.
BIf sending multiple commands,
check that a response has been
received from the projector for
one command before sending
the next command.
BWhen a command which does
not require parameters is sent,
the colon (:) is not required.
BIf an incorrect command is sent
from the personal computer, the
“ER401” command will be sent
from the projector to the
personal computer.
NOTE:
BUse a proper communication
cable which is suitable for the
personal computer to connect
the serial connector and the
personal computer.
D-sub 9-pin (male)
Communication cable
SERIAL(female)
Computer
1
5
6
9
D-sub 9-pin
Appearance
Pin
No.
Signal
name
Contents
#
NC
$
TXD Transmitted data
%
RXD Received data
&
NC
'
GND Ground
(
DSR
)
CTS
Connected internally
*
RTS
NC
+