Panasonic PT-LB51E User Manual

The serial connector which is on the connector panel of the projector conforms to the RS-232C interface 
specification, so that the projector can be controlled by a personal computer which is connected to this connecter.

J Connection

J Pin assignments and signal names

J Communication settings

J Basic format

 

The projector can not receive any command for approximately 10 seconds after the lamp is switched on 
and for approximately 1 second after the cooling fan stops operating and the projector has returned to 
standby mode (approximately 90 seconds after the indicator switches off). 
Be sure to wait until the lengths of time mentioned above have passed before sending the command.

 

If sending multiple commands, check that a response has been received from the projector for one 
command before sending the next command.

 

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

 

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

A B F

Connected internally

C

RXD

Received data

D

GND

Earth

E

TXD

Transmitted data

G H

NC

RS-232C

8 bits

Asynchronous

1 bit

9 600 bps

None

None

None

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.

1

2

6

8

5

3

Start byte

(02h)

1 byte

End

(03h)

3 bytes

1 byte  - 

4 bytes