Panasonic PT-LB20U manual Using the Serial connector, Connection, Pin assignments and signal names

Using the SERIAL connector

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 connector.

Connection

SERIAL(female)Computer

DIN 8-pin (male)

Serial adapter (ET-ADSER : sold separately)

NOTE:

BYou must use only RS-232C Serial Interface Cable with ferrite core, type ET-ADSER.

Pin assignments and signal names

	1	2
	3	5
	6	8
	DIN 8-pin
	Appearance
Pin	Signal	Contents
No.	name
%	RXD	Received data
&	GND	Earth
'	TXD	Transmitted data
#
$		Connected internally
(
)		NC
*		NC

Communications settings

Signal level	RS-232C
Sync. method	Asynchronous
Baud rate	9 600 bps
Parity	None
Character length	8 bits
Stop bit	1 bit
X parameter	None
S parameter	None

Basic format

The data sent from the computer to the projector is transmitted in the format shown below.

STX Command : Parameter ETX

Start byte		1 byte	End byte
(02h)	3 bytes	1 byte-5	bytes (03h)

NOTE:

BThe projector can not receive the command for 10 seconds after the lamp is switched on.

Wait 10 seconds before sending the command.

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

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

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

64-ENGLISH