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Using the SERIAL connector (RS-232C)
The serial connector which is on the side terminal board of the projector conforms to the RS-232C interface specifica-
tion, so that the projector can be controlled by a personal computer which is connected to this connector.
<Side terminal board>
SERIAL(RS-232C)
Note
Use a proper communication cable which is suitable for the personal computer to connect the serial connector and the
personal computer.
Pin layout and signal names for SERIAL connector
Projector
1
2
3
5
6
8
Mini Din 8-pin (female)
Communication settings
Signal level
Synchronizing method
Baud rate
Parity
Character length
Stop bit
X parameter
S parameter
Basic format
Each packet which is sent from the personal computer starts with STX. Following this is the command itself and the
parameters for that command (if any,) and the packet then ends with ETX. Add parameters when necessary according
to the control contents.
STX
Start byte
Note
• 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 do not require parameters is 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.
RS-232C cable (sold separately)
Determined by RS-232C interface
Asynchronous
9 600 bps
None
8 bit
1 bit
None
None
C1
C2
C3
:
Command
Colon
(3 byte)
(1 byte)
Pin No.
Signal name
1
2
3
4
5
6
7
8
P1
P2
P3
P4
Parameter
(1- 5 byte)
Contents
CTS
Connected internally
RTS
Connected internally
RXD
Received data
GND
GND
TXD
Transmitted data
P5
ETX
End byte
NC
NC
NC
44
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