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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.
Use a proper communication cable which is suitable for the personal computer to connect the serial connector and the
personal computer.
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.
• 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.
• If an incorrect parameter is sent from the personal computer, the “ER402” command will be sent from the projector to
the personal computer.
Pin layout and signal names for SERIAL connector
Communication settings
Basic format
Projector
Pin No. Signal name Contents
1 CTS Connected internally
2 RTS Connected internally
3 RXD Received data
4 GND GND
5 TXD Transmitted data
6NC
7NC
8NC
Signal level Determined by RS-232C interface
Synchronizing method Asynchronous
Baud rate 9 600 bps
Parity None
Character length 8 bit
Stop bit 1 bit
X parameter None
S parameter None
<Side terminal board>
SERIAL(RS-232C)
STX C1C2C3 : P1P2P3P4P5 ETX
Start byte Command
(3 byte)
Colon
(1 byte)
Parameter
(1- 5 byte)
12
68
35
Mini Din 8 p (female)
End byte
Note
Note
RS-232C cable (not included)