Panasonic PT-LB2 Spezifische Datei - Seite 7

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S
F
P
E
C
I
L
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.
Pin assignments and signal names
6
9
1
5
D-sub HD 9-pin, female
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.
STX
C1 C2 C3
Start
(1 byte)
Command
(3 bytes)
(Control and/or query commands)
CAUTION
• It may not be possible to send or receive commands for about 10 to 60 seconds when the lamp is first turned on. If this occurs, wait for 60 seconds,
then try sending or receiving again.
• When sending multiple commands, be sure to wait for at least 0.5 second after receiving a response from the projector before sending the next com-
mand.
• Additional time is sometimes required for response due to processing inside the projector. Set the time-out period for command response to 10 seconds
or more.
Cable specifications
As of July 2010
E
No.
Signal name
Description
1
–
NC
2
TXD
Send data
3
RXD
Receive data
4
–
NC
5
GND
Ground
RS-232C-compliant
Start-stop synchronization
9,600 bps
None
8 bits
1 bit
None
None
:
P1 P2 P3 P4
Colon
Parameter
(1 byte)
(1-4 bytes)
Projector
1
NC
2
3
4
NC
5
6
NC
7
8
9
NC
No.
Signal name
6
–
7
CTS
8
RTS
9
–
ETX
End
(1 byte)
PC (DTE)
NC
1
2
3
4
NC
5
NC
6
7
8
9
NC
PT-LB2
Signal name
Connected internally
Connected internally
Connected internally
NC
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