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The projector is equipped with an RS-232C standard serial terminal at the rear. It is therefore possible to connect it
to a computer for control.
Connection
Using the SERIAL
Communication
requirements
Basic format
Transmission from the computer begins with STX, then the command, parameter and ETX are sent in this order.
Colon (:) is not required when transmitting the command which does not need a parameter.
Pin assignments and signal names
Signal level
Sync method
Baud rate
Parity
Character length
Stop bit
X parameter
S parameter
RS-232C
Start-stop transmission
9 600 bps
None
8 bit
1 bit
None
None
Caution
• On commencement of lamp lighting, commands cannot be sent or responses received for approximately 10
seconds. Be sure to send any commands and receive responses 10 seconds. (Applies to the PT-L6600U /
PT-L6600UL only)
• When transmitting several commands, wait for a response from the projector before sending the next command.
When sending commands without parameters, a colon is not necessary.
• When it is unnecessary to designate an ID code, send the format without the part to ID designate it.
Note
• If a wrong command is received, the projector sends ER401 back to the computer.
• When using control from the remote terminal, commands cannot be received at the serial terminal.
• Projector ID supported on the RS-232C interface is 0 (ALL) to 99.
• The remote control ID is set from 0 to 3. If a command is sent with a projector ID specified, the projector will return
answer back only if the ID contained in the command matches the projector ID or the projector ID is set to ALL.
STX
C1
C2
C3
:
P1
P2
P3
P4
P5
ETX
Start
ID designate
Command 3 characters
(3 Bytes)
Colon
Parameter
(1 to 5 Bytes)
End
AD
I 1
I 2
:
ID
characters
(2 Bytes)
00 to 99
Colon
PC
D-sub 9-pin (female)
Side interface panel
D-sub 9-pin (male)
Communication cable
SERIAL
PC
Unit 1 interface panel
D-sub 9-pin
(male)
D-sub 9-pin
(male)
D-sub 9-pin
(female)
D-sub 9-pin
(female)
D-sub 9-pin
(male)
Communication cable
Unit 2 interface panel
D-sub 9-pin
(male)
D-sub 9-pin
(female)
Communication cable
OUT
IN
SERIAL
OUT
IN
SERIAL
• Single
• Plural
Pin No. Signal name
TXD
RXD
GND
CTS
RTS
Description
NC
Send data
Receive data
Connected internally
Ground
NC
Connected
internally
NC
Pin No. Signal name
RXD
TXD
GND
RTS
CTS
Description
NC
Receive data
Send data
NC
Ground
NC
Connected
internally
NC
D-Sub 9-pin (female)
external appearance
D-Sub 9-pin (male)
external appearance
