Download User Manual - Projector Central

Technical information
Serial terminal
The serial port on the connector panel of the projector conforms to the RS-232C interface specification, so the
projector can be controlled by a personal computer connected to this port.
■■Connection
D-sub 9 pin (male)
Serial terminal (female)
Computer
■■Pin assignments and signal names
D-Sub 9 Pin (external view)
(6)

(9)
(1)
(5)
Pin No.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Signal name
—
TXD
RXD
—
GND
—
RTS
CTS
(9)
—
Contents
NC
Transmitted data
Received data
NC
Earth
NC
Connected internally
NC
■■Communication settings
Signal level
Sync. method
Baud rate
Parity
RS-232C
Asynchronous
9 600 bps
None
Character length
Stop bit
X parameter
S parameter
8 bits
1 bit
None
None
■■Basic format
STX
Start byte
(02h)
Command
:
Parameter
1 byte
3 bytes
1 byte - 4 bytes
ETX
End
(03h)
Data streaming from the computer will start with STX,
and proceed to command, parameter and end with
ETX.
Parameters can be added as necessary.
Attention
zz The projector cannot receive any command for 10 seconds after the lamp is switched on. Wait 10 seconds before sending
a command.
zz If sending multiple commands, check that a response has been received from the projector for one command before
sending the next.
zz When a command which does not require parameters to be sent, a colon (:) is not required.
Note
Appendix
zz If an incorrect command is sent, the ER401 command will be sent from the projector to the personal computer.
102 - ENGLISH