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S
F
P
E
C
I
L
Micro-Portable Wireless LCD Projector
Serial connector
The serial connector complies with RS-232C. To control the projector from a personal computer, com-
mands must be input through communication software, based on the format and satisfying the commu-
nication conditions shown below.
CAUTIION
Be sure to see that an optional serial adapter ET-ADSER and a
RS-232C communication cable match the PC to be connected.
Pin assignments and signal names
2
1
5
3
8
6
Mini DIN 8-pin
Communication conditions (factory setting)
Signal level
Synchronization method
Baud rate
Parity
Character length
Stop bit
X parameter
S parameter
Basic format
Transmission from the computer begins with STX, then the ID, command, parameter, and ETX are sent
in this order. Add parameters according to the details of control.
CAUTIION
When sending multiple commands, be sure to send the next command after receiving a response from the projector.
Cable specifications
As of May 2007
E
No.
Signal name
Description
1
–
Connected internally
2
–
Connected internally
3
RXD
Receive data
4
GND
Ground
RS-232C-compliant
Start-stop synchronization
9,600 bps
None
8 bits
1 bit
None
None
STX
C1 C2 C3
Start
(1 byte)
Command
(3 bytes)
(Control and/or query commands)
Serial adapter
(ET-ADSER)
–
–
5
2
3
3
–
–
4
5
6
6
1
7
2
8
–
SERIAL
8-pin DIN (male)
Serial adapter
ET-ADSER
Communication cable (RS-232C)
No.
Signal name
5
TXD
6
–
7
–
8
–
:
P1 P2 P3 P4
Colon
Parameter
(1 byte)
(1-4 bytes)
Projector
NC
NC
1
2
3
NC
NC
4
5
DSR
NC
6
7
8
NC
NC
9
PT-LB51
PC
Description
Send data
Connected internally
NC
NC
ETX
End
(1 byte)
PC (DTE)
1
2
3
4
5
6
7
8
9
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