Panasonic PT-LB90U User Manual

The serial connector which is on the connector panel of the projector conforms to the RS-232C interface specifi-

cations, so that the projector can be controlled by a personal computer which is connected to this connector.

J

Computer

D-Sub 9-pin (male)

Serial terminal (female)

J

NC

TXD

Transmitted data

RXD

Received data

NC

GND

Earth

NC

RTS

Connected internally

CTS

NC

J

Signal level

RS-232C

Character length

8 bits

Sync.method

Asynchronous

Stop bit

1 bit

Baud rate

9 600 bps

X parameter

None

Parity

None

S parameter

None

J

STX Command :

Parameter

ETX

Start byte  

(02 h)

1 byte

3 bytes

1 byte - 4 bytes

End  

(03 h)

The data streaming from the computer will start with 

STX, and proceed to Command, Parameter and end 

with ETX. 

You can add the required parameter.

The projector can not receive any command for 10 seconds after the lamp is switched on. Wait for 10 seconds 

 

z

before sending the command.

If sending multiple commands, check if a response has been received from the projector for one command 

 

z

before sending the next command.

When a command which does not require parameters to be sent, the colon (:) is not required.

 

z

If an incorrect command is sent from the personal computer, the ER401 command will be sent from the 

 

z

projector to the personal computer.